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1 | 69b91039 | bellard | /*
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2 | 69b91039 | bellard | * QEMU PCI bus manager
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3 | 69b91039 | bellard | *
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4 | 69b91039 | bellard | * Copyright (c) 2004 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 69b91039 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 69b91039 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | 69b91039 | bellard | * in the Software without restriction, including without limitation the rights
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9 | 69b91039 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 69b91039 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | 69b91039 | bellard | * furnished to do so, subject to the following conditions:
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12 | 69b91039 | bellard | *
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13 | 69b91039 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | 69b91039 | bellard | * all copies or substantial portions of the Software.
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15 | 69b91039 | bellard | *
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16 | 69b91039 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 69b91039 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 69b91039 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 69b91039 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 69b91039 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 69b91039 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 69b91039 | bellard | * THE SOFTWARE.
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23 | 69b91039 | bellard | */
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24 | 87ecb68b | pbrook | #include "hw.h" |
25 | 87ecb68b | pbrook | #include "pci.h" |
26 | 783753fd | Isaku Yamahata | #include "pci_bridge.h" |
27 | cfb0a50a | Isaku Yamahata | #include "pci_internals.h" |
28 | 376253ec | aliguori | #include "monitor.h" |
29 | 87ecb68b | pbrook | #include "net.h" |
30 | 880345c4 | aliguori | #include "sysemu.h" |
31 | c2039bd0 | Anthony Liguori | #include "loader.h" |
32 | bf1b0071 | Blue Swirl | #include "range.h" |
33 | 79627472 | Luiz Capitulino | #include "qmp-commands.h" |
34 | cbd2d434 | Jan Kiszka | #include "msi.h" |
35 | cbd2d434 | Jan Kiszka | #include "msix.h" |
36 | 817dcc53 | Avi Kivity | #include "exec-memory.h" |
37 | 69b91039 | bellard | |
38 | 69b91039 | bellard | //#define DEBUG_PCI
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39 | d8d2e079 | Isaku Yamahata | #ifdef DEBUG_PCI
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40 | 2e49d64a | Isaku Yamahata | # define PCI_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) |
41 | d8d2e079 | Isaku Yamahata | #else
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42 | d8d2e079 | Isaku Yamahata | # define PCI_DPRINTF(format, ...) do { } while (0) |
43 | d8d2e079 | Isaku Yamahata | #endif
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44 | 69b91039 | bellard | |
45 | 10c4c98a | Gerd Hoffmann | static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent); |
46 | 4f43c1ff | Alex Williamson | static char *pcibus_get_dev_path(DeviceState *dev); |
47 | 5e0259e7 | Gleb Natapov | static char *pcibus_get_fw_dev_path(DeviceState *dev); |
48 | 9bb33586 | Isaku Yamahata | static int pcibus_reset(BusState *qbus); |
49 | 10c4c98a | Gerd Hoffmann | |
50 | 3cb75a7c | Paolo Bonzini | static Property pci_props[] = {
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51 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1), |
52 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_STRING("romfile", PCIDevice, romfile),
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53 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_UINT32("rombar", PCIDevice, rom_bar, 1), |
54 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_BIT("multifunction", PCIDevice, cap_present,
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55 | 3cb75a7c | Paolo Bonzini | QEMU_PCI_CAP_MULTIFUNCTION_BITNR, false),
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56 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_BIT("command_serr_enable", PCIDevice, cap_present,
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57 | 3cb75a7c | Paolo Bonzini | QEMU_PCI_CAP_SERR_BITNR, true),
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58 | 3cb75a7c | Paolo Bonzini | DEFINE_PROP_END_OF_LIST() |
59 | 3cb75a7c | Paolo Bonzini | }; |
60 | 3cb75a7c | Paolo Bonzini | |
61 | 0d936928 | Anthony Liguori | static void pci_bus_class_init(ObjectClass *klass, void *data) |
62 | 0d936928 | Anthony Liguori | { |
63 | 0d936928 | Anthony Liguori | BusClass *k = BUS_CLASS(klass); |
64 | 0d936928 | Anthony Liguori | |
65 | 0d936928 | Anthony Liguori | k->print_dev = pcibus_dev_print; |
66 | 0d936928 | Anthony Liguori | k->get_dev_path = pcibus_get_dev_path; |
67 | 0d936928 | Anthony Liguori | k->get_fw_dev_path = pcibus_get_fw_dev_path; |
68 | 0d936928 | Anthony Liguori | k->reset = pcibus_reset; |
69 | 0d936928 | Anthony Liguori | } |
70 | 0d936928 | Anthony Liguori | |
71 | 0d936928 | Anthony Liguori | static const TypeInfo pci_bus_info = { |
72 | 0d936928 | Anthony Liguori | .name = TYPE_PCI_BUS, |
73 | 0d936928 | Anthony Liguori | .parent = TYPE_BUS, |
74 | 0d936928 | Anthony Liguori | .instance_size = sizeof(PCIBus),
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75 | 0d936928 | Anthony Liguori | .class_init = pci_bus_class_init, |
76 | 30468f78 | bellard | }; |
77 | 69b91039 | bellard | |
78 | d662210a | Michael S. Tsirkin | static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num); |
79 | 1941d19c | bellard | static void pci_update_mappings(PCIDevice *d); |
80 | d537cf6c | pbrook | static void pci_set_irq(void *opaque, int irq_num, int level); |
81 | ab85ceb1 | Stefan Weil | static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom); |
82 | 230741dc | Alex Williamson | static void pci_del_option_rom(PCIDevice *pdev); |
83 | 1941d19c | bellard | |
84 | d350d97d | aliguori | static uint16_t pci_default_sub_vendor_id = PCI_SUBVENDOR_ID_REDHAT_QUMRANET;
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85 | d350d97d | aliguori | static uint16_t pci_default_sub_device_id = PCI_SUBDEVICE_ID_QEMU;
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86 | e822a52a | Isaku Yamahata | |
87 | e822a52a | Isaku Yamahata | struct PCIHostBus {
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88 | e822a52a | Isaku Yamahata | int domain;
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89 | e822a52a | Isaku Yamahata | struct PCIBus *bus;
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90 | e822a52a | Isaku Yamahata | QLIST_ENTRY(PCIHostBus) next; |
91 | e822a52a | Isaku Yamahata | }; |
92 | e822a52a | Isaku Yamahata | static QLIST_HEAD(, PCIHostBus) host_buses;
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93 | 30468f78 | bellard | |
94 | 2d1e9f96 | Juan Quintela | static const VMStateDescription vmstate_pcibus = { |
95 | 2d1e9f96 | Juan Quintela | .name = "PCIBUS",
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96 | 2d1e9f96 | Juan Quintela | .version_id = 1,
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97 | 2d1e9f96 | Juan Quintela | .minimum_version_id = 1,
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98 | 2d1e9f96 | Juan Quintela | .minimum_version_id_old = 1,
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99 | 2d1e9f96 | Juan Quintela | .fields = (VMStateField []) { |
100 | 2d1e9f96 | Juan Quintela | VMSTATE_INT32_EQUAL(nirq, PCIBus), |
101 | c7bde572 | Juan Quintela | VMSTATE_VARRAY_INT32(irq_count, PCIBus, nirq, 0, vmstate_info_int32, int32_t),
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102 | 2d1e9f96 | Juan Quintela | VMSTATE_END_OF_LIST() |
103 | 52fc1d83 | balrog | } |
104 | 2d1e9f96 | Juan Quintela | }; |
105 | b3b11697 | Isaku Yamahata | static int pci_bar(PCIDevice *d, int reg) |
106 | 5330de09 | Michael S. Tsirkin | { |
107 | b3b11697 | Isaku Yamahata | uint8_t type; |
108 | b3b11697 | Isaku Yamahata | |
109 | b3b11697 | Isaku Yamahata | if (reg != PCI_ROM_SLOT)
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110 | b3b11697 | Isaku Yamahata | return PCI_BASE_ADDRESS_0 + reg * 4; |
111 | b3b11697 | Isaku Yamahata | |
112 | b3b11697 | Isaku Yamahata | type = d->config[PCI_HEADER_TYPE] & ~PCI_HEADER_TYPE_MULTI_FUNCTION; |
113 | b3b11697 | Isaku Yamahata | return type == PCI_HEADER_TYPE_BRIDGE ? PCI_ROM_ADDRESS1 : PCI_ROM_ADDRESS;
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114 | 5330de09 | Michael S. Tsirkin | } |
115 | 5330de09 | Michael S. Tsirkin | |
116 | d036bb21 | Michael S. Tsirkin | static inline int pci_irq_state(PCIDevice *d, int irq_num) |
117 | d036bb21 | Michael S. Tsirkin | { |
118 | d036bb21 | Michael S. Tsirkin | return (d->irq_state >> irq_num) & 0x1; |
119 | d036bb21 | Michael S. Tsirkin | } |
120 | d036bb21 | Michael S. Tsirkin | |
121 | d036bb21 | Michael S. Tsirkin | static inline void pci_set_irq_state(PCIDevice *d, int irq_num, int level) |
122 | d036bb21 | Michael S. Tsirkin | { |
123 | d036bb21 | Michael S. Tsirkin | d->irq_state &= ~(0x1 << irq_num);
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124 | d036bb21 | Michael S. Tsirkin | d->irq_state |= level << irq_num; |
125 | d036bb21 | Michael S. Tsirkin | } |
126 | d036bb21 | Michael S. Tsirkin | |
127 | d036bb21 | Michael S. Tsirkin | static void pci_change_irq_level(PCIDevice *pci_dev, int irq_num, int change) |
128 | d036bb21 | Michael S. Tsirkin | { |
129 | d036bb21 | Michael S. Tsirkin | PCIBus *bus; |
130 | d036bb21 | Michael S. Tsirkin | for (;;) {
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131 | d036bb21 | Michael S. Tsirkin | bus = pci_dev->bus; |
132 | d036bb21 | Michael S. Tsirkin | irq_num = bus->map_irq(pci_dev, irq_num); |
133 | d036bb21 | Michael S. Tsirkin | if (bus->set_irq)
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134 | d036bb21 | Michael S. Tsirkin | break;
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135 | d036bb21 | Michael S. Tsirkin | pci_dev = bus->parent_dev; |
136 | d036bb21 | Michael S. Tsirkin | } |
137 | d036bb21 | Michael S. Tsirkin | bus->irq_count[irq_num] += change; |
138 | d036bb21 | Michael S. Tsirkin | bus->set_irq(bus->irq_opaque, irq_num, bus->irq_count[irq_num] != 0);
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139 | d036bb21 | Michael S. Tsirkin | } |
140 | d036bb21 | Michael S. Tsirkin | |
141 | 9ddf8437 | Isaku Yamahata | int pci_bus_get_irq_level(PCIBus *bus, int irq_num) |
142 | 9ddf8437 | Isaku Yamahata | { |
143 | 9ddf8437 | Isaku Yamahata | assert(irq_num >= 0);
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144 | 9ddf8437 | Isaku Yamahata | assert(irq_num < bus->nirq); |
145 | 9ddf8437 | Isaku Yamahata | return !!bus->irq_count[irq_num];
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146 | 9ddf8437 | Isaku Yamahata | } |
147 | 9ddf8437 | Isaku Yamahata | |
148 | f9bf77dd | Michael S. Tsirkin | /* Update interrupt status bit in config space on interrupt
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149 | f9bf77dd | Michael S. Tsirkin | * state change. */
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150 | f9bf77dd | Michael S. Tsirkin | static void pci_update_irq_status(PCIDevice *dev) |
151 | f9bf77dd | Michael S. Tsirkin | { |
152 | f9bf77dd | Michael S. Tsirkin | if (dev->irq_state) {
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153 | f9bf77dd | Michael S. Tsirkin | dev->config[PCI_STATUS] |= PCI_STATUS_INTERRUPT; |
154 | f9bf77dd | Michael S. Tsirkin | } else {
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155 | f9bf77dd | Michael S. Tsirkin | dev->config[PCI_STATUS] &= ~PCI_STATUS_INTERRUPT; |
156 | f9bf77dd | Michael S. Tsirkin | } |
157 | f9bf77dd | Michael S. Tsirkin | } |
158 | f9bf77dd | Michael S. Tsirkin | |
159 | 4c92325b | Isaku Yamahata | void pci_device_deassert_intx(PCIDevice *dev)
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160 | 4c92325b | Isaku Yamahata | { |
161 | 4c92325b | Isaku Yamahata | int i;
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162 | 4c92325b | Isaku Yamahata | for (i = 0; i < PCI_NUM_PINS; ++i) { |
163 | 4c92325b | Isaku Yamahata | qemu_set_irq(dev->irq[i], 0);
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164 | 4c92325b | Isaku Yamahata | } |
165 | 4c92325b | Isaku Yamahata | } |
166 | 4c92325b | Isaku Yamahata | |
167 | 0ead87c8 | Isaku Yamahata | /*
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168 | 0ead87c8 | Isaku Yamahata | * This function is called on #RST and FLR.
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169 | 0ead87c8 | Isaku Yamahata | * FLR if PCI_EXP_DEVCTL_BCR_FLR is set
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170 | 0ead87c8 | Isaku Yamahata | */
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171 | 0ead87c8 | Isaku Yamahata | void pci_device_reset(PCIDevice *dev)
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172 | 5330de09 | Michael S. Tsirkin | { |
173 | c0b1905b | Michael S. Tsirkin | int r;
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174 | 6fc4925b | Anthony Liguori | |
175 | 6fc4925b | Anthony Liguori | qdev_reset_all(&dev->qdev); |
176 | c0b1905b | Michael S. Tsirkin | |
177 | d036bb21 | Michael S. Tsirkin | dev->irq_state = 0;
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178 | f9bf77dd | Michael S. Tsirkin | pci_update_irq_status(dev); |
179 | 4c92325b | Isaku Yamahata | pci_device_deassert_intx(dev); |
180 | ebabb67a | Stefan Weil | /* Clear all writable bits */
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181 | 99443c21 | Isaku Yamahata | pci_word_test_and_clear_mask(dev->config + PCI_COMMAND, |
182 | f9aebe2e | Michael S. Tsirkin | pci_get_word(dev->wmask + PCI_COMMAND) | |
183 | f9aebe2e | Michael S. Tsirkin | pci_get_word(dev->w1cmask + PCI_COMMAND)); |
184 | 89d437df | Isaku Yamahata | pci_word_test_and_clear_mask(dev->config + PCI_STATUS, |
185 | 89d437df | Isaku Yamahata | pci_get_word(dev->wmask + PCI_STATUS) | |
186 | 89d437df | Isaku Yamahata | pci_get_word(dev->w1cmask + PCI_STATUS)); |
187 | c0b1905b | Michael S. Tsirkin | dev->config[PCI_CACHE_LINE_SIZE] = 0x0;
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188 | c0b1905b | Michael S. Tsirkin | dev->config[PCI_INTERRUPT_LINE] = 0x0;
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189 | c0b1905b | Michael S. Tsirkin | for (r = 0; r < PCI_NUM_REGIONS; ++r) { |
190 | 71ebd6dc | Isaku Yamahata | PCIIORegion *region = &dev->io_regions[r]; |
191 | 71ebd6dc | Isaku Yamahata | if (!region->size) {
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192 | c0b1905b | Michael S. Tsirkin | continue;
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193 | c0b1905b | Michael S. Tsirkin | } |
194 | 71ebd6dc | Isaku Yamahata | |
195 | 71ebd6dc | Isaku Yamahata | if (!(region->type & PCI_BASE_ADDRESS_SPACE_IO) &&
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196 | 71ebd6dc | Isaku Yamahata | region->type & PCI_BASE_ADDRESS_MEM_TYPE_64) { |
197 | 71ebd6dc | Isaku Yamahata | pci_set_quad(dev->config + pci_bar(dev, r), region->type); |
198 | 71ebd6dc | Isaku Yamahata | } else {
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199 | 71ebd6dc | Isaku Yamahata | pci_set_long(dev->config + pci_bar(dev, r), region->type); |
200 | 71ebd6dc | Isaku Yamahata | } |
201 | c0b1905b | Michael S. Tsirkin | } |
202 | c0b1905b | Michael S. Tsirkin | pci_update_mappings(dev); |
203 | cbd2d434 | Jan Kiszka | |
204 | cbd2d434 | Jan Kiszka | msi_reset(dev); |
205 | cbd2d434 | Jan Kiszka | msix_reset(dev); |
206 | 5330de09 | Michael S. Tsirkin | } |
207 | 5330de09 | Michael S. Tsirkin | |
208 | 9bb33586 | Isaku Yamahata | /*
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209 | 9bb33586 | Isaku Yamahata | * Trigger pci bus reset under a given bus.
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210 | 9bb33586 | Isaku Yamahata | * To be called on RST# assert.
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211 | 9bb33586 | Isaku Yamahata | */
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212 | 9bb33586 | Isaku Yamahata | void pci_bus_reset(PCIBus *bus)
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213 | 6eaa6847 | Gleb Natapov | { |
214 | 6eaa6847 | Gleb Natapov | int i;
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215 | 6eaa6847 | Gleb Natapov | |
216 | 6eaa6847 | Gleb Natapov | for (i = 0; i < bus->nirq; i++) { |
217 | 6eaa6847 | Gleb Natapov | bus->irq_count[i] = 0;
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218 | 6eaa6847 | Gleb Natapov | } |
219 | 5330de09 | Michael S. Tsirkin | for (i = 0; i < ARRAY_SIZE(bus->devices); ++i) { |
220 | 5330de09 | Michael S. Tsirkin | if (bus->devices[i]) {
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221 | 5330de09 | Michael S. Tsirkin | pci_device_reset(bus->devices[i]); |
222 | 5330de09 | Michael S. Tsirkin | } |
223 | 6eaa6847 | Gleb Natapov | } |
224 | 6eaa6847 | Gleb Natapov | } |
225 | 6eaa6847 | Gleb Natapov | |
226 | 9bb33586 | Isaku Yamahata | static int pcibus_reset(BusState *qbus) |
227 | 9bb33586 | Isaku Yamahata | { |
228 | 9bb33586 | Isaku Yamahata | pci_bus_reset(DO_UPCAST(PCIBus, qbus, qbus)); |
229 | 9bb33586 | Isaku Yamahata | |
230 | 9bb33586 | Isaku Yamahata | /* topology traverse is done by pci_bus_reset().
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231 | 9bb33586 | Isaku Yamahata | Tell qbus/qdev walker not to traverse the tree */
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232 | 9bb33586 | Isaku Yamahata | return 1; |
233 | 9bb33586 | Isaku Yamahata | } |
234 | 9bb33586 | Isaku Yamahata | |
235 | e822a52a | Isaku Yamahata | static void pci_host_bus_register(int domain, PCIBus *bus) |
236 | e822a52a | Isaku Yamahata | { |
237 | e822a52a | Isaku Yamahata | struct PCIHostBus *host;
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238 | 7267c094 | Anthony Liguori | host = g_malloc0(sizeof(*host));
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239 | e822a52a | Isaku Yamahata | host->domain = domain; |
240 | e822a52a | Isaku Yamahata | host->bus = bus; |
241 | e822a52a | Isaku Yamahata | QLIST_INSERT_HEAD(&host_buses, host, next); |
242 | e822a52a | Isaku Yamahata | } |
243 | e822a52a | Isaku Yamahata | |
244 | c469e1dd | Isaku Yamahata | PCIBus *pci_find_root_bus(int domain)
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245 | e822a52a | Isaku Yamahata | { |
246 | e822a52a | Isaku Yamahata | struct PCIHostBus *host;
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247 | e822a52a | Isaku Yamahata | |
248 | e822a52a | Isaku Yamahata | QLIST_FOREACH(host, &host_buses, next) { |
249 | e822a52a | Isaku Yamahata | if (host->domain == domain) {
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250 | e822a52a | Isaku Yamahata | return host->bus;
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251 | e822a52a | Isaku Yamahata | } |
252 | e822a52a | Isaku Yamahata | } |
253 | e822a52a | Isaku Yamahata | |
254 | e822a52a | Isaku Yamahata | return NULL; |
255 | e822a52a | Isaku Yamahata | } |
256 | e822a52a | Isaku Yamahata | |
257 | e075e788 | Isaku Yamahata | int pci_find_domain(const PCIBus *bus) |
258 | e075e788 | Isaku Yamahata | { |
259 | e075e788 | Isaku Yamahata | PCIDevice *d; |
260 | e075e788 | Isaku Yamahata | struct PCIHostBus *host;
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261 | e075e788 | Isaku Yamahata | |
262 | e075e788 | Isaku Yamahata | /* obtain root bus */
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263 | e075e788 | Isaku Yamahata | while ((d = bus->parent_dev) != NULL) { |
264 | e075e788 | Isaku Yamahata | bus = d->bus; |
265 | e075e788 | Isaku Yamahata | } |
266 | e075e788 | Isaku Yamahata | |
267 | e075e788 | Isaku Yamahata | QLIST_FOREACH(host, &host_buses, next) { |
268 | e075e788 | Isaku Yamahata | if (host->bus == bus) {
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269 | e075e788 | Isaku Yamahata | return host->domain;
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270 | e075e788 | Isaku Yamahata | } |
271 | e075e788 | Isaku Yamahata | } |
272 | e075e788 | Isaku Yamahata | |
273 | e075e788 | Isaku Yamahata | abort(); /* should not be reached */
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274 | e075e788 | Isaku Yamahata | return -1; |
275 | e075e788 | Isaku Yamahata | } |
276 | e075e788 | Isaku Yamahata | |
277 | 21eea4b3 | Gerd Hoffmann | void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
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278 | 1e39101c | Avi Kivity | const char *name, |
279 | aee97b84 | Avi Kivity | MemoryRegion *address_space_mem, |
280 | aee97b84 | Avi Kivity | MemoryRegion *address_space_io, |
281 | 1e39101c | Avi Kivity | uint8_t devfn_min) |
282 | 30468f78 | bellard | { |
283 | 0d936928 | Anthony Liguori | qbus_create_inplace(&bus->qbus, TYPE_PCI_BUS, parent, name); |
284 | 6fa84913 | Isaku Yamahata | assert(PCI_FUNC(devfn_min) == 0);
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285 | 502a5395 | pbrook | bus->devfn_min = devfn_min; |
286 | 5968eca3 | Avi Kivity | bus->address_space_mem = address_space_mem; |
287 | 5968eca3 | Avi Kivity | bus->address_space_io = address_space_io; |
288 | e822a52a | Isaku Yamahata | |
289 | e822a52a | Isaku Yamahata | /* host bridge */
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290 | e822a52a | Isaku Yamahata | QLIST_INIT(&bus->child); |
291 | e822a52a | Isaku Yamahata | pci_host_bus_register(0, bus); /* for now only pci domain 0 is supported */ |
292 | e822a52a | Isaku Yamahata | |
293 | 0be71e32 | Alex Williamson | vmstate_register(NULL, -1, &vmstate_pcibus, bus); |
294 | 21eea4b3 | Gerd Hoffmann | } |
295 | 21eea4b3 | Gerd Hoffmann | |
296 | 1e39101c | Avi Kivity | PCIBus *pci_bus_new(DeviceState *parent, const char *name, |
297 | aee97b84 | Avi Kivity | MemoryRegion *address_space_mem, |
298 | aee97b84 | Avi Kivity | MemoryRegion *address_space_io, |
299 | aee97b84 | Avi Kivity | uint8_t devfn_min) |
300 | 21eea4b3 | Gerd Hoffmann | { |
301 | 21eea4b3 | Gerd Hoffmann | PCIBus *bus; |
302 | 21eea4b3 | Gerd Hoffmann | |
303 | 7267c094 | Anthony Liguori | bus = g_malloc0(sizeof(*bus));
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304 | 0d936928 | Anthony Liguori | bus->qbus.glib_allocated = true;
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305 | aee97b84 | Avi Kivity | pci_bus_new_inplace(bus, parent, name, address_space_mem, |
306 | aee97b84 | Avi Kivity | address_space_io, devfn_min); |
307 | 21eea4b3 | Gerd Hoffmann | return bus;
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308 | 21eea4b3 | Gerd Hoffmann | } |
309 | 21eea4b3 | Gerd Hoffmann | |
310 | 21eea4b3 | Gerd Hoffmann | void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
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311 | 21eea4b3 | Gerd Hoffmann | void *irq_opaque, int nirq) |
312 | 21eea4b3 | Gerd Hoffmann | { |
313 | 21eea4b3 | Gerd Hoffmann | bus->set_irq = set_irq; |
314 | 21eea4b3 | Gerd Hoffmann | bus->map_irq = map_irq; |
315 | 21eea4b3 | Gerd Hoffmann | bus->irq_opaque = irq_opaque; |
316 | 21eea4b3 | Gerd Hoffmann | bus->nirq = nirq; |
317 | 7267c094 | Anthony Liguori | bus->irq_count = g_malloc0(nirq * sizeof(bus->irq_count[0])); |
318 | 21eea4b3 | Gerd Hoffmann | } |
319 | 21eea4b3 | Gerd Hoffmann | |
320 | 87c30546 | Isaku Yamahata | void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *qdev)
|
321 | ee995ffb | Gerd Hoffmann | { |
322 | ee995ffb | Gerd Hoffmann | bus->qbus.allow_hotplug = 1;
|
323 | ee995ffb | Gerd Hoffmann | bus->hotplug = hotplug; |
324 | 87c30546 | Isaku Yamahata | bus->hotplug_qdev = qdev; |
325 | ee995ffb | Gerd Hoffmann | } |
326 | ee995ffb | Gerd Hoffmann | |
327 | 21eea4b3 | Gerd Hoffmann | PCIBus *pci_register_bus(DeviceState *parent, const char *name, |
328 | 21eea4b3 | Gerd Hoffmann | pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, |
329 | 1e39101c | Avi Kivity | void *irq_opaque,
|
330 | aee97b84 | Avi Kivity | MemoryRegion *address_space_mem, |
331 | aee97b84 | Avi Kivity | MemoryRegion *address_space_io, |
332 | 1e39101c | Avi Kivity | uint8_t devfn_min, int nirq)
|
333 | 21eea4b3 | Gerd Hoffmann | { |
334 | 21eea4b3 | Gerd Hoffmann | PCIBus *bus; |
335 | 21eea4b3 | Gerd Hoffmann | |
336 | aee97b84 | Avi Kivity | bus = pci_bus_new(parent, name, address_space_mem, |
337 | aee97b84 | Avi Kivity | address_space_io, devfn_min); |
338 | 21eea4b3 | Gerd Hoffmann | pci_bus_irqs(bus, set_irq, map_irq, irq_opaque, nirq); |
339 | 30468f78 | bellard | return bus;
|
340 | 30468f78 | bellard | } |
341 | 69b91039 | bellard | |
342 | 502a5395 | pbrook | int pci_bus_num(PCIBus *s)
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343 | 502a5395 | pbrook | { |
344 | e94ff650 | Isaku Yamahata | if (!s->parent_dev)
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345 | e94ff650 | Isaku Yamahata | return 0; /* pci host bridge */ |
346 | e94ff650 | Isaku Yamahata | return s->parent_dev->config[PCI_SECONDARY_BUS];
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347 | 502a5395 | pbrook | } |
348 | 502a5395 | pbrook | |
349 | 73534f2f | Juan Quintela | static int get_pci_config_device(QEMUFile *f, void *pv, size_t size) |
350 | 30ca2aab | bellard | { |
351 | 73534f2f | Juan Quintela | PCIDevice *s = container_of(pv, PCIDevice, config); |
352 | a9f49946 | Isaku Yamahata | uint8_t *config; |
353 | 52fc1d83 | balrog | int i;
|
354 | 52fc1d83 | balrog | |
355 | a9f49946 | Isaku Yamahata | assert(size == pci_config_size(s)); |
356 | 7267c094 | Anthony Liguori | config = g_malloc(size); |
357 | a9f49946 | Isaku Yamahata | |
358 | a9f49946 | Isaku Yamahata | qemu_get_buffer(f, config, size); |
359 | a9f49946 | Isaku Yamahata | for (i = 0; i < size; ++i) { |
360 | f9aebe2e | Michael S. Tsirkin | if ((config[i] ^ s->config[i]) &
|
361 | f9aebe2e | Michael S. Tsirkin | s->cmask[i] & ~s->wmask[i] & ~s->w1cmask[i]) { |
362 | 7267c094 | Anthony Liguori | g_free(config); |
363 | bd4b65ee | Michael S. Tsirkin | return -EINVAL;
|
364 | a9f49946 | Isaku Yamahata | } |
365 | a9f49946 | Isaku Yamahata | } |
366 | a9f49946 | Isaku Yamahata | memcpy(s->config, config, size); |
367 | bd4b65ee | Michael S. Tsirkin | |
368 | 1941d19c | bellard | pci_update_mappings(s); |
369 | 52fc1d83 | balrog | |
370 | 7267c094 | Anthony Liguori | g_free(config); |
371 | 30ca2aab | bellard | return 0; |
372 | 30ca2aab | bellard | } |
373 | 30ca2aab | bellard | |
374 | 73534f2f | Juan Quintela | /* just put buffer */
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375 | 84e2e3eb | Juan Quintela | static void put_pci_config_device(QEMUFile *f, void *pv, size_t size) |
376 | 73534f2f | Juan Quintela | { |
377 | dbe73d7f | Juan Quintela | const uint8_t **v = pv;
|
378 | a9f49946 | Isaku Yamahata | assert(size == pci_config_size(container_of(pv, PCIDevice, config))); |
379 | dbe73d7f | Juan Quintela | qemu_put_buffer(f, *v, size); |
380 | 73534f2f | Juan Quintela | } |
381 | 73534f2f | Juan Quintela | |
382 | 73534f2f | Juan Quintela | static VMStateInfo vmstate_info_pci_config = {
|
383 | 73534f2f | Juan Quintela | .name = "pci config",
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384 | 73534f2f | Juan Quintela | .get = get_pci_config_device, |
385 | 73534f2f | Juan Quintela | .put = put_pci_config_device, |
386 | 73534f2f | Juan Quintela | }; |
387 | 73534f2f | Juan Quintela | |
388 | d036bb21 | Michael S. Tsirkin | static int get_pci_irq_state(QEMUFile *f, void *pv, size_t size) |
389 | d036bb21 | Michael S. Tsirkin | { |
390 | c3f8f611 | Michael S. Tsirkin | PCIDevice *s = container_of(pv, PCIDevice, irq_state); |
391 | d036bb21 | Michael S. Tsirkin | uint32_t irq_state[PCI_NUM_PINS]; |
392 | d036bb21 | Michael S. Tsirkin | int i;
|
393 | d036bb21 | Michael S. Tsirkin | for (i = 0; i < PCI_NUM_PINS; ++i) { |
394 | d036bb21 | Michael S. Tsirkin | irq_state[i] = qemu_get_be32(f); |
395 | d036bb21 | Michael S. Tsirkin | if (irq_state[i] != 0x1 && irq_state[i] != 0) { |
396 | d036bb21 | Michael S. Tsirkin | fprintf(stderr, "irq state %d: must be 0 or 1.\n",
|
397 | d036bb21 | Michael S. Tsirkin | irq_state[i]); |
398 | d036bb21 | Michael S. Tsirkin | return -EINVAL;
|
399 | d036bb21 | Michael S. Tsirkin | } |
400 | d036bb21 | Michael S. Tsirkin | } |
401 | d036bb21 | Michael S. Tsirkin | |
402 | d036bb21 | Michael S. Tsirkin | for (i = 0; i < PCI_NUM_PINS; ++i) { |
403 | d036bb21 | Michael S. Tsirkin | pci_set_irq_state(s, i, irq_state[i]); |
404 | d036bb21 | Michael S. Tsirkin | } |
405 | d036bb21 | Michael S. Tsirkin | |
406 | d036bb21 | Michael S. Tsirkin | return 0; |
407 | d036bb21 | Michael S. Tsirkin | } |
408 | d036bb21 | Michael S. Tsirkin | |
409 | d036bb21 | Michael S. Tsirkin | static void put_pci_irq_state(QEMUFile *f, void *pv, size_t size) |
410 | d036bb21 | Michael S. Tsirkin | { |
411 | d036bb21 | Michael S. Tsirkin | int i;
|
412 | c3f8f611 | Michael S. Tsirkin | PCIDevice *s = container_of(pv, PCIDevice, irq_state); |
413 | d036bb21 | Michael S. Tsirkin | |
414 | d036bb21 | Michael S. Tsirkin | for (i = 0; i < PCI_NUM_PINS; ++i) { |
415 | d036bb21 | Michael S. Tsirkin | qemu_put_be32(f, pci_irq_state(s, i)); |
416 | d036bb21 | Michael S. Tsirkin | } |
417 | d036bb21 | Michael S. Tsirkin | } |
418 | d036bb21 | Michael S. Tsirkin | |
419 | d036bb21 | Michael S. Tsirkin | static VMStateInfo vmstate_info_pci_irq_state = {
|
420 | d036bb21 | Michael S. Tsirkin | .name = "pci irq state",
|
421 | d036bb21 | Michael S. Tsirkin | .get = get_pci_irq_state, |
422 | d036bb21 | Michael S. Tsirkin | .put = put_pci_irq_state, |
423 | d036bb21 | Michael S. Tsirkin | }; |
424 | d036bb21 | Michael S. Tsirkin | |
425 | 73534f2f | Juan Quintela | const VMStateDescription vmstate_pci_device = {
|
426 | 73534f2f | Juan Quintela | .name = "PCIDevice",
|
427 | 73534f2f | Juan Quintela | .version_id = 2,
|
428 | 73534f2f | Juan Quintela | .minimum_version_id = 1,
|
429 | 73534f2f | Juan Quintela | .minimum_version_id_old = 1,
|
430 | 73534f2f | Juan Quintela | .fields = (VMStateField []) { |
431 | 73534f2f | Juan Quintela | VMSTATE_INT32_LE(version_id, PCIDevice), |
432 | a9f49946 | Isaku Yamahata | VMSTATE_BUFFER_UNSAFE_INFO(config, PCIDevice, 0,
|
433 | a9f49946 | Isaku Yamahata | vmstate_info_pci_config, |
434 | a9f49946 | Isaku Yamahata | PCI_CONFIG_SPACE_SIZE), |
435 | d036bb21 | Michael S. Tsirkin | VMSTATE_BUFFER_UNSAFE_INFO(irq_state, PCIDevice, 2,
|
436 | d036bb21 | Michael S. Tsirkin | vmstate_info_pci_irq_state, |
437 | d036bb21 | Michael S. Tsirkin | PCI_NUM_PINS * sizeof(int32_t)),
|
438 | a9f49946 | Isaku Yamahata | VMSTATE_END_OF_LIST() |
439 | a9f49946 | Isaku Yamahata | } |
440 | a9f49946 | Isaku Yamahata | }; |
441 | a9f49946 | Isaku Yamahata | |
442 | a9f49946 | Isaku Yamahata | const VMStateDescription vmstate_pcie_device = {
|
443 | 1de53459 | Jason Baron | .name = "PCIEDevice",
|
444 | a9f49946 | Isaku Yamahata | .version_id = 2,
|
445 | a9f49946 | Isaku Yamahata | .minimum_version_id = 1,
|
446 | a9f49946 | Isaku Yamahata | .minimum_version_id_old = 1,
|
447 | a9f49946 | Isaku Yamahata | .fields = (VMStateField []) { |
448 | a9f49946 | Isaku Yamahata | VMSTATE_INT32_LE(version_id, PCIDevice), |
449 | a9f49946 | Isaku Yamahata | VMSTATE_BUFFER_UNSAFE_INFO(config, PCIDevice, 0,
|
450 | a9f49946 | Isaku Yamahata | vmstate_info_pci_config, |
451 | a9f49946 | Isaku Yamahata | PCIE_CONFIG_SPACE_SIZE), |
452 | d036bb21 | Michael S. Tsirkin | VMSTATE_BUFFER_UNSAFE_INFO(irq_state, PCIDevice, 2,
|
453 | d036bb21 | Michael S. Tsirkin | vmstate_info_pci_irq_state, |
454 | d036bb21 | Michael S. Tsirkin | PCI_NUM_PINS * sizeof(int32_t)),
|
455 | 73534f2f | Juan Quintela | VMSTATE_END_OF_LIST() |
456 | 73534f2f | Juan Quintela | } |
457 | 73534f2f | Juan Quintela | }; |
458 | 73534f2f | Juan Quintela | |
459 | a9f49946 | Isaku Yamahata | static inline const VMStateDescription *pci_get_vmstate(PCIDevice *s) |
460 | a9f49946 | Isaku Yamahata | { |
461 | a9f49946 | Isaku Yamahata | return pci_is_express(s) ? &vmstate_pcie_device : &vmstate_pci_device;
|
462 | a9f49946 | Isaku Yamahata | } |
463 | a9f49946 | Isaku Yamahata | |
464 | 73534f2f | Juan Quintela | void pci_device_save(PCIDevice *s, QEMUFile *f)
|
465 | 73534f2f | Juan Quintela | { |
466 | f9bf77dd | Michael S. Tsirkin | /* Clear interrupt status bit: it is implicit
|
467 | f9bf77dd | Michael S. Tsirkin | * in irq_state which we are saving.
|
468 | f9bf77dd | Michael S. Tsirkin | * This makes us compatible with old devices
|
469 | f9bf77dd | Michael S. Tsirkin | * which never set or clear this bit. */
|
470 | f9bf77dd | Michael S. Tsirkin | s->config[PCI_STATUS] &= ~PCI_STATUS_INTERRUPT; |
471 | a9f49946 | Isaku Yamahata | vmstate_save_state(f, pci_get_vmstate(s), s); |
472 | f9bf77dd | Michael S. Tsirkin | /* Restore the interrupt status bit. */
|
473 | f9bf77dd | Michael S. Tsirkin | pci_update_irq_status(s); |
474 | 73534f2f | Juan Quintela | } |
475 | 73534f2f | Juan Quintela | |
476 | 73534f2f | Juan Quintela | int pci_device_load(PCIDevice *s, QEMUFile *f)
|
477 | 73534f2f | Juan Quintela | { |
478 | f9bf77dd | Michael S. Tsirkin | int ret;
|
479 | f9bf77dd | Michael S. Tsirkin | ret = vmstate_load_state(f, pci_get_vmstate(s), s, s->version_id); |
480 | f9bf77dd | Michael S. Tsirkin | /* Restore the interrupt status bit. */
|
481 | f9bf77dd | Michael S. Tsirkin | pci_update_irq_status(s); |
482 | f9bf77dd | Michael S. Tsirkin | return ret;
|
483 | 73534f2f | Juan Quintela | } |
484 | 73534f2f | Juan Quintela | |
485 | 5e434f4e | Isaku Yamahata | static void pci_set_default_subsystem_id(PCIDevice *pci_dev) |
486 | d350d97d | aliguori | { |
487 | 5e434f4e | Isaku Yamahata | pci_set_word(pci_dev->config + PCI_SUBSYSTEM_VENDOR_ID, |
488 | 5e434f4e | Isaku Yamahata | pci_default_sub_vendor_id); |
489 | 5e434f4e | Isaku Yamahata | pci_set_word(pci_dev->config + PCI_SUBSYSTEM_ID, |
490 | 5e434f4e | Isaku Yamahata | pci_default_sub_device_id); |
491 | d350d97d | aliguori | } |
492 | d350d97d | aliguori | |
493 | 880345c4 | aliguori | /*
|
494 | 43c945f1 | Isaku Yamahata | * Parse [[<domain>:]<bus>:]<slot>, return -1 on error if funcp == NULL
|
495 | 43c945f1 | Isaku Yamahata | * [[<domain>:]<bus>:]<slot>.<func>, return -1 on error
|
496 | 880345c4 | aliguori | */
|
497 | 94a09e2c | Michael S. Tsirkin | static int pci_parse_devaddr(const char *addr, int *domp, int *busp, |
498 | 43c945f1 | Isaku Yamahata | unsigned int *slotp, unsigned int *funcp) |
499 | 880345c4 | aliguori | { |
500 | 880345c4 | aliguori | const char *p; |
501 | 880345c4 | aliguori | char *e;
|
502 | 880345c4 | aliguori | unsigned long val; |
503 | 880345c4 | aliguori | unsigned long dom = 0, bus = 0; |
504 | 43c945f1 | Isaku Yamahata | unsigned int slot = 0; |
505 | 43c945f1 | Isaku Yamahata | unsigned int func = 0; |
506 | 880345c4 | aliguori | |
507 | 880345c4 | aliguori | p = addr; |
508 | 880345c4 | aliguori | val = strtoul(p, &e, 16);
|
509 | 880345c4 | aliguori | if (e == p)
|
510 | 880345c4 | aliguori | return -1; |
511 | 880345c4 | aliguori | if (*e == ':') { |
512 | 880345c4 | aliguori | bus = val; |
513 | 880345c4 | aliguori | p = e + 1;
|
514 | 880345c4 | aliguori | val = strtoul(p, &e, 16);
|
515 | 880345c4 | aliguori | if (e == p)
|
516 | 880345c4 | aliguori | return -1; |
517 | 880345c4 | aliguori | if (*e == ':') { |
518 | 880345c4 | aliguori | dom = bus; |
519 | 880345c4 | aliguori | bus = val; |
520 | 880345c4 | aliguori | p = e + 1;
|
521 | 880345c4 | aliguori | val = strtoul(p, &e, 16);
|
522 | 880345c4 | aliguori | if (e == p)
|
523 | 880345c4 | aliguori | return -1; |
524 | 880345c4 | aliguori | } |
525 | 880345c4 | aliguori | } |
526 | 880345c4 | aliguori | |
527 | 880345c4 | aliguori | slot = val; |
528 | 880345c4 | aliguori | |
529 | 43c945f1 | Isaku Yamahata | if (funcp != NULL) { |
530 | 43c945f1 | Isaku Yamahata | if (*e != '.') |
531 | 43c945f1 | Isaku Yamahata | return -1; |
532 | 43c945f1 | Isaku Yamahata | |
533 | 43c945f1 | Isaku Yamahata | p = e + 1;
|
534 | 43c945f1 | Isaku Yamahata | val = strtoul(p, &e, 16);
|
535 | 43c945f1 | Isaku Yamahata | if (e == p)
|
536 | 43c945f1 | Isaku Yamahata | return -1; |
537 | 43c945f1 | Isaku Yamahata | |
538 | 43c945f1 | Isaku Yamahata | func = val; |
539 | 43c945f1 | Isaku Yamahata | } |
540 | 43c945f1 | Isaku Yamahata | |
541 | 43c945f1 | Isaku Yamahata | /* if funcp == NULL func is 0 */
|
542 | 43c945f1 | Isaku Yamahata | if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) |
543 | 43c945f1 | Isaku Yamahata | return -1; |
544 | 43c945f1 | Isaku Yamahata | |
545 | 880345c4 | aliguori | if (*e)
|
546 | 880345c4 | aliguori | return -1; |
547 | 880345c4 | aliguori | |
548 | 880345c4 | aliguori | *domp = dom; |
549 | 880345c4 | aliguori | *busp = bus; |
550 | 880345c4 | aliguori | *slotp = slot; |
551 | 43c945f1 | Isaku Yamahata | if (funcp != NULL) |
552 | 43c945f1 | Isaku Yamahata | *funcp = func; |
553 | 880345c4 | aliguori | return 0; |
554 | 880345c4 | aliguori | } |
555 | 880345c4 | aliguori | |
556 | e9283f8b | Jan Kiszka | int pci_read_devaddr(Monitor *mon, const char *addr, int *domp, int *busp, |
557 | e9283f8b | Jan Kiszka | unsigned *slotp)
|
558 | 880345c4 | aliguori | { |
559 | e9283f8b | Jan Kiszka | /* strip legacy tag */
|
560 | e9283f8b | Jan Kiszka | if (!strncmp(addr, "pci_addr=", 9)) { |
561 | e9283f8b | Jan Kiszka | addr += 9;
|
562 | e9283f8b | Jan Kiszka | } |
563 | 43c945f1 | Isaku Yamahata | if (pci_parse_devaddr(addr, domp, busp, slotp, NULL)) { |
564 | e9283f8b | Jan Kiszka | monitor_printf(mon, "Invalid pci address\n");
|
565 | 880345c4 | aliguori | return -1; |
566 | e9283f8b | Jan Kiszka | } |
567 | e9283f8b | Jan Kiszka | return 0; |
568 | 880345c4 | aliguori | } |
569 | 880345c4 | aliguori | |
570 | 49bd1458 | Markus Armbruster | PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr) |
571 | 5607c388 | Markus Armbruster | { |
572 | 5607c388 | Markus Armbruster | int dom, bus;
|
573 | 5607c388 | Markus Armbruster | unsigned slot;
|
574 | 5607c388 | Markus Armbruster | |
575 | 5607c388 | Markus Armbruster | if (!devaddr) {
|
576 | 5607c388 | Markus Armbruster | *devfnp = -1;
|
577 | d662210a | Michael S. Tsirkin | return pci_find_bus_nr(pci_find_root_bus(0), 0); |
578 | 5607c388 | Markus Armbruster | } |
579 | 5607c388 | Markus Armbruster | |
580 | 43c945f1 | Isaku Yamahata | if (pci_parse_devaddr(devaddr, &dom, &bus, &slot, NULL) < 0) { |
581 | 5607c388 | Markus Armbruster | return NULL; |
582 | 5607c388 | Markus Armbruster | } |
583 | 5607c388 | Markus Armbruster | |
584 | 6ff534b6 | Isaku Yamahata | *devfnp = PCI_DEVFN(slot, 0);
|
585 | d662210a | Michael S. Tsirkin | return pci_find_bus_nr(pci_find_root_bus(dom), bus);
|
586 | 5607c388 | Markus Armbruster | } |
587 | 5607c388 | Markus Armbruster | |
588 | bd4b65ee | Michael S. Tsirkin | static void pci_init_cmask(PCIDevice *dev) |
589 | bd4b65ee | Michael S. Tsirkin | { |
590 | bd4b65ee | Michael S. Tsirkin | pci_set_word(dev->cmask + PCI_VENDOR_ID, 0xffff);
|
591 | bd4b65ee | Michael S. Tsirkin | pci_set_word(dev->cmask + PCI_DEVICE_ID, 0xffff);
|
592 | bd4b65ee | Michael S. Tsirkin | dev->cmask[PCI_STATUS] = PCI_STATUS_CAP_LIST; |
593 | bd4b65ee | Michael S. Tsirkin | dev->cmask[PCI_REVISION_ID] = 0xff;
|
594 | bd4b65ee | Michael S. Tsirkin | dev->cmask[PCI_CLASS_PROG] = 0xff;
|
595 | bd4b65ee | Michael S. Tsirkin | pci_set_word(dev->cmask + PCI_CLASS_DEVICE, 0xffff);
|
596 | bd4b65ee | Michael S. Tsirkin | dev->cmask[PCI_HEADER_TYPE] = 0xff;
|
597 | bd4b65ee | Michael S. Tsirkin | dev->cmask[PCI_CAPABILITY_LIST] = 0xff;
|
598 | bd4b65ee | Michael S. Tsirkin | } |
599 | bd4b65ee | Michael S. Tsirkin | |
600 | b7ee1603 | Michael S. Tsirkin | static void pci_init_wmask(PCIDevice *dev) |
601 | b7ee1603 | Michael S. Tsirkin | { |
602 | a9f49946 | Isaku Yamahata | int config_size = pci_config_size(dev);
|
603 | a9f49946 | Isaku Yamahata | |
604 | b7ee1603 | Michael S. Tsirkin | dev->wmask[PCI_CACHE_LINE_SIZE] = 0xff;
|
605 | b7ee1603 | Michael S. Tsirkin | dev->wmask[PCI_INTERRUPT_LINE] = 0xff;
|
606 | 67a51b48 | Isaku Yamahata | pci_set_word(dev->wmask + PCI_COMMAND, |
607 | a7b15a5c | Michael S. Tsirkin | PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
608 | a7b15a5c | Michael S. Tsirkin | PCI_COMMAND_INTX_DISABLE); |
609 | b1aeb926 | Isaku Yamahata | if (dev->cap_present & QEMU_PCI_CAP_SERR) {
|
610 | b1aeb926 | Isaku Yamahata | pci_word_test_and_set_mask(dev->wmask + PCI_COMMAND, PCI_COMMAND_SERR); |
611 | b1aeb926 | Isaku Yamahata | } |
612 | 3e21ffc9 | Isaku Yamahata | |
613 | 3e21ffc9 | Isaku Yamahata | memset(dev->wmask + PCI_CONFIG_HEADER_SIZE, 0xff,
|
614 | 3e21ffc9 | Isaku Yamahata | config_size - PCI_CONFIG_HEADER_SIZE); |
615 | b7ee1603 | Michael S. Tsirkin | } |
616 | b7ee1603 | Michael S. Tsirkin | |
617 | 89d437df | Isaku Yamahata | static void pci_init_w1cmask(PCIDevice *dev) |
618 | 89d437df | Isaku Yamahata | { |
619 | 89d437df | Isaku Yamahata | /*
|
620 | f6bdfcc9 | Michael S. Tsirkin | * Note: It's okay to set w1cmask even for readonly bits as
|
621 | 89d437df | Isaku Yamahata | * long as their value is hardwired to 0.
|
622 | 89d437df | Isaku Yamahata | */
|
623 | 89d437df | Isaku Yamahata | pci_set_word(dev->w1cmask + PCI_STATUS, |
624 | 89d437df | Isaku Yamahata | PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT | |
625 | 89d437df | Isaku Yamahata | PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT | |
626 | 89d437df | Isaku Yamahata | PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY); |
627 | 89d437df | Isaku Yamahata | } |
628 | 89d437df | Isaku Yamahata | |
629 | d5f27e88 | Michael S. Tsirkin | static void pci_init_mask_bridge(PCIDevice *d) |
630 | fb231628 | Isaku Yamahata | { |
631 | fb231628 | Isaku Yamahata | /* PCI_PRIMARY_BUS, PCI_SECONDARY_BUS, PCI_SUBORDINATE_BUS and
|
632 | fb231628 | Isaku Yamahata | PCI_SEC_LETENCY_TIMER */
|
633 | fb231628 | Isaku Yamahata | memset(d->wmask + PCI_PRIMARY_BUS, 0xff, 4); |
634 | fb231628 | Isaku Yamahata | |
635 | fb231628 | Isaku Yamahata | /* base and limit */
|
636 | fb231628 | Isaku Yamahata | d->wmask[PCI_IO_BASE] = PCI_IO_RANGE_MASK & 0xff;
|
637 | fb231628 | Isaku Yamahata | d->wmask[PCI_IO_LIMIT] = PCI_IO_RANGE_MASK & 0xff;
|
638 | fb231628 | Isaku Yamahata | pci_set_word(d->wmask + PCI_MEMORY_BASE, |
639 | fb231628 | Isaku Yamahata | PCI_MEMORY_RANGE_MASK & 0xffff);
|
640 | fb231628 | Isaku Yamahata | pci_set_word(d->wmask + PCI_MEMORY_LIMIT, |
641 | fb231628 | Isaku Yamahata | PCI_MEMORY_RANGE_MASK & 0xffff);
|
642 | fb231628 | Isaku Yamahata | pci_set_word(d->wmask + PCI_PREF_MEMORY_BASE, |
643 | fb231628 | Isaku Yamahata | PCI_PREF_RANGE_MASK & 0xffff);
|
644 | fb231628 | Isaku Yamahata | pci_set_word(d->wmask + PCI_PREF_MEMORY_LIMIT, |
645 | fb231628 | Isaku Yamahata | PCI_PREF_RANGE_MASK & 0xffff);
|
646 | fb231628 | Isaku Yamahata | |
647 | fb231628 | Isaku Yamahata | /* PCI_PREF_BASE_UPPER32 and PCI_PREF_LIMIT_UPPER32 */
|
648 | fb231628 | Isaku Yamahata | memset(d->wmask + PCI_PREF_BASE_UPPER32, 0xff, 8); |
649 | fb231628 | Isaku Yamahata | |
650 | d5f27e88 | Michael S. Tsirkin | /* Supported memory and i/o types */
|
651 | 68917102 | Michael S. Tsirkin | d->config[PCI_IO_BASE] |= PCI_IO_RANGE_TYPE_16; |
652 | 68917102 | Michael S. Tsirkin | d->config[PCI_IO_LIMIT] |= PCI_IO_RANGE_TYPE_16; |
653 | d5f27e88 | Michael S. Tsirkin | pci_word_test_and_set_mask(d->config + PCI_PREF_MEMORY_BASE, |
654 | d5f27e88 | Michael S. Tsirkin | PCI_PREF_RANGE_TYPE_64); |
655 | d5f27e88 | Michael S. Tsirkin | pci_word_test_and_set_mask(d->config + PCI_PREF_MEMORY_LIMIT, |
656 | d5f27e88 | Michael S. Tsirkin | PCI_PREF_RANGE_TYPE_64); |
657 | d5f27e88 | Michael S. Tsirkin | |
658 | f6bdfcc9 | Michael S. Tsirkin | /* TODO: add this define to pci_regs.h in linux and then in qemu. */
|
659 | f6bdfcc9 | Michael S. Tsirkin | #define PCI_BRIDGE_CTL_VGA_16BIT 0x10 /* VGA 16-bit decode */ |
660 | f6bdfcc9 | Michael S. Tsirkin | #define PCI_BRIDGE_CTL_DISCARD 0x100 /* Primary discard timer */ |
661 | f6bdfcc9 | Michael S. Tsirkin | #define PCI_BRIDGE_CTL_SEC_DISCARD 0x200 /* Secondary discard timer */ |
662 | f6bdfcc9 | Michael S. Tsirkin | #define PCI_BRIDGE_CTL_DISCARD_STATUS 0x400 /* Discard timer status */ |
663 | f6bdfcc9 | Michael S. Tsirkin | #define PCI_BRIDGE_CTL_DISCARD_SERR 0x800 /* Discard timer SERR# enable */ |
664 | f6bdfcc9 | Michael S. Tsirkin | pci_set_word(d->wmask + PCI_BRIDGE_CONTROL, |
665 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_PARITY | |
666 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_SERR | |
667 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_ISA | |
668 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_VGA | |
669 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_VGA_16BIT | |
670 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_MASTER_ABORT | |
671 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_BUS_RESET | |
672 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_FAST_BACK | |
673 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_DISCARD | |
674 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_SEC_DISCARD | |
675 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_DISCARD_SERR); |
676 | f6bdfcc9 | Michael S. Tsirkin | /* Below does not do anything as we never set this bit, put here for
|
677 | f6bdfcc9 | Michael S. Tsirkin | * completeness. */
|
678 | f6bdfcc9 | Michael S. Tsirkin | pci_set_word(d->w1cmask + PCI_BRIDGE_CONTROL, |
679 | f6bdfcc9 | Michael S. Tsirkin | PCI_BRIDGE_CTL_DISCARD_STATUS); |
680 | d5f27e88 | Michael S. Tsirkin | d->cmask[PCI_IO_BASE] |= PCI_IO_RANGE_TYPE_MASK; |
681 | 15ab7a75 | Michael S. Tsirkin | d->cmask[PCI_IO_LIMIT] |= PCI_IO_RANGE_TYPE_MASK; |
682 | d5f27e88 | Michael S. Tsirkin | pci_word_test_and_set_mask(d->cmask + PCI_PREF_MEMORY_BASE, |
683 | d5f27e88 | Michael S. Tsirkin | PCI_PREF_RANGE_TYPE_MASK); |
684 | 15ab7a75 | Michael S. Tsirkin | pci_word_test_and_set_mask(d->cmask + PCI_PREF_MEMORY_LIMIT, |
685 | 15ab7a75 | Michael S. Tsirkin | PCI_PREF_RANGE_TYPE_MASK); |
686 | fb231628 | Isaku Yamahata | } |
687 | fb231628 | Isaku Yamahata | |
688 | 6eab3de1 | Isaku Yamahata | static int pci_init_multifunction(PCIBus *bus, PCIDevice *dev) |
689 | 6eab3de1 | Isaku Yamahata | { |
690 | 6eab3de1 | Isaku Yamahata | uint8_t slot = PCI_SLOT(dev->devfn); |
691 | 6eab3de1 | Isaku Yamahata | uint8_t func; |
692 | 6eab3de1 | Isaku Yamahata | |
693 | 6eab3de1 | Isaku Yamahata | if (dev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
|
694 | 6eab3de1 | Isaku Yamahata | dev->config[PCI_HEADER_TYPE] |= PCI_HEADER_TYPE_MULTI_FUNCTION; |
695 | 6eab3de1 | Isaku Yamahata | } |
696 | 6eab3de1 | Isaku Yamahata | |
697 | 6eab3de1 | Isaku Yamahata | /*
|
698 | b0cd712c | Stefan Weil | * multifunction bit is interpreted in two ways as follows.
|
699 | 6eab3de1 | Isaku Yamahata | * - all functions must set the bit to 1.
|
700 | 6eab3de1 | Isaku Yamahata | * Example: Intel X53
|
701 | 6eab3de1 | Isaku Yamahata | * - function 0 must set the bit, but the rest function (> 0)
|
702 | 6eab3de1 | Isaku Yamahata | * is allowed to leave the bit to 0.
|
703 | 6eab3de1 | Isaku Yamahata | * Example: PIIX3(also in qemu), PIIX4(also in qemu), ICH10,
|
704 | 6eab3de1 | Isaku Yamahata | *
|
705 | 6eab3de1 | Isaku Yamahata | * So OS (at least Linux) checks the bit of only function 0,
|
706 | 6eab3de1 | Isaku Yamahata | * and doesn't see the bit of function > 0.
|
707 | 6eab3de1 | Isaku Yamahata | *
|
708 | 6eab3de1 | Isaku Yamahata | * The below check allows both interpretation.
|
709 | 6eab3de1 | Isaku Yamahata | */
|
710 | 6eab3de1 | Isaku Yamahata | if (PCI_FUNC(dev->devfn)) {
|
711 | 6eab3de1 | Isaku Yamahata | PCIDevice *f0 = bus->devices[PCI_DEVFN(slot, 0)];
|
712 | 6eab3de1 | Isaku Yamahata | if (f0 && !(f0->cap_present & QEMU_PCI_CAP_MULTIFUNCTION)) {
|
713 | 6eab3de1 | Isaku Yamahata | /* function 0 should set multifunction bit */
|
714 | 6eab3de1 | Isaku Yamahata | error_report("PCI: single function device can't be populated "
|
715 | 6eab3de1 | Isaku Yamahata | "in function %x.%x", slot, PCI_FUNC(dev->devfn));
|
716 | 6eab3de1 | Isaku Yamahata | return -1; |
717 | 6eab3de1 | Isaku Yamahata | } |
718 | 6eab3de1 | Isaku Yamahata | return 0; |
719 | 6eab3de1 | Isaku Yamahata | } |
720 | 6eab3de1 | Isaku Yamahata | |
721 | 6eab3de1 | Isaku Yamahata | if (dev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
|
722 | 6eab3de1 | Isaku Yamahata | return 0; |
723 | 6eab3de1 | Isaku Yamahata | } |
724 | 6eab3de1 | Isaku Yamahata | /* function 0 indicates single function, so function > 0 must be NULL */
|
725 | 6eab3de1 | Isaku Yamahata | for (func = 1; func < PCI_FUNC_MAX; ++func) { |
726 | 6eab3de1 | Isaku Yamahata | if (bus->devices[PCI_DEVFN(slot, func)]) {
|
727 | 6eab3de1 | Isaku Yamahata | error_report("PCI: %x.0 indicates single function, "
|
728 | 6eab3de1 | Isaku Yamahata | "but %x.%x is already populated.",
|
729 | 6eab3de1 | Isaku Yamahata | slot, slot, func); |
730 | 6eab3de1 | Isaku Yamahata | return -1; |
731 | 6eab3de1 | Isaku Yamahata | } |
732 | 6eab3de1 | Isaku Yamahata | } |
733 | 6eab3de1 | Isaku Yamahata | return 0; |
734 | 6eab3de1 | Isaku Yamahata | } |
735 | 6eab3de1 | Isaku Yamahata | |
736 | a9f49946 | Isaku Yamahata | static void pci_config_alloc(PCIDevice *pci_dev) |
737 | a9f49946 | Isaku Yamahata | { |
738 | a9f49946 | Isaku Yamahata | int config_size = pci_config_size(pci_dev);
|
739 | a9f49946 | Isaku Yamahata | |
740 | 7267c094 | Anthony Liguori | pci_dev->config = g_malloc0(config_size); |
741 | 7267c094 | Anthony Liguori | pci_dev->cmask = g_malloc0(config_size); |
742 | 7267c094 | Anthony Liguori | pci_dev->wmask = g_malloc0(config_size); |
743 | 7267c094 | Anthony Liguori | pci_dev->w1cmask = g_malloc0(config_size); |
744 | 7267c094 | Anthony Liguori | pci_dev->used = g_malloc0(config_size); |
745 | a9f49946 | Isaku Yamahata | } |
746 | a9f49946 | Isaku Yamahata | |
747 | a9f49946 | Isaku Yamahata | static void pci_config_free(PCIDevice *pci_dev) |
748 | a9f49946 | Isaku Yamahata | { |
749 | 7267c094 | Anthony Liguori | g_free(pci_dev->config); |
750 | 7267c094 | Anthony Liguori | g_free(pci_dev->cmask); |
751 | 7267c094 | Anthony Liguori | g_free(pci_dev->wmask); |
752 | 7267c094 | Anthony Liguori | g_free(pci_dev->w1cmask); |
753 | 7267c094 | Anthony Liguori | g_free(pci_dev->used); |
754 | a9f49946 | Isaku Yamahata | } |
755 | a9f49946 | Isaku Yamahata | |
756 | 69b91039 | bellard | /* -1 for devfn means auto assign */
|
757 | 6b1b92d3 | Paul Brook | static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
|
758 | 40021f08 | Anthony Liguori | const char *name, int devfn) |
759 | 69b91039 | bellard | { |
760 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev); |
761 | 40021f08 | Anthony Liguori | PCIConfigReadFunc *config_read = pc->config_read; |
762 | 40021f08 | Anthony Liguori | PCIConfigWriteFunc *config_write = pc->config_write; |
763 | 113f89df | Isaku Yamahata | |
764 | 69b91039 | bellard | if (devfn < 0) { |
765 | b47b0706 | Isaku Yamahata | for(devfn = bus->devfn_min ; devfn < ARRAY_SIZE(bus->devices);
|
766 | 6fa84913 | Isaku Yamahata | devfn += PCI_FUNC_MAX) { |
767 | 30468f78 | bellard | if (!bus->devices[devfn])
|
768 | 69b91039 | bellard | goto found;
|
769 | 69b91039 | bellard | } |
770 | 3709c1b7 | Daniel P. Berrange | error_report("PCI: no slot/function available for %s, all in use", name);
|
771 | 09e3acc6 | Gerd Hoffmann | return NULL; |
772 | 69b91039 | bellard | found: ;
|
773 | 07b7d053 | Markus Armbruster | } else if (bus->devices[devfn]) { |
774 | 3709c1b7 | Daniel P. Berrange | error_report("PCI: slot %d function %d not available for %s, in use by %s",
|
775 | 3709c1b7 | Daniel P. Berrange | PCI_SLOT(devfn), PCI_FUNC(devfn), name, bus->devices[devfn]->name); |
776 | 09e3acc6 | Gerd Hoffmann | return NULL; |
777 | 69b91039 | bellard | } |
778 | 30468f78 | bellard | pci_dev->bus = bus; |
779 | 5fa45de5 | David Gibson | if (bus->dma_context_fn) {
|
780 | 5fa45de5 | David Gibson | pci_dev->dma = bus->dma_context_fn(bus, bus->dma_context_opaque, devfn); |
781 | 817dcc53 | Avi Kivity | } else {
|
782 | 817dcc53 | Avi Kivity | /* FIXME: Make dma_context_fn use MemoryRegions instead, so this path is
|
783 | 817dcc53 | Avi Kivity | * taken unconditionally */
|
784 | 817dcc53 | Avi Kivity | /* FIXME: inherit memory region from bus creator */
|
785 | 1c380f94 | Avi Kivity | memory_region_init_alias(&pci_dev->bus_master_enable_region, "bus master",
|
786 | 1c380f94 | Avi Kivity | get_system_memory(), 0,
|
787 | 1c380f94 | Avi Kivity | memory_region_size(get_system_memory())); |
788 | 1c380f94 | Avi Kivity | memory_region_set_enabled(&pci_dev->bus_master_enable_region, false);
|
789 | 1c380f94 | Avi Kivity | address_space_init(&pci_dev->bus_master_as, &pci_dev->bus_master_enable_region); |
790 | 817dcc53 | Avi Kivity | pci_dev->dma = g_new(DMAContext, 1);
|
791 | 817dcc53 | Avi Kivity | dma_context_init(pci_dev->dma, &pci_dev->bus_master_as, NULL, NULL, NULL); |
792 | 5fa45de5 | David Gibson | } |
793 | 69b91039 | bellard | pci_dev->devfn = devfn; |
794 | 69b91039 | bellard | pstrcpy(pci_dev->name, sizeof(pci_dev->name), name);
|
795 | d036bb21 | Michael S. Tsirkin | pci_dev->irq_state = 0;
|
796 | a9f49946 | Isaku Yamahata | pci_config_alloc(pci_dev); |
797 | fb231628 | Isaku Yamahata | |
798 | 40021f08 | Anthony Liguori | pci_config_set_vendor_id(pci_dev->config, pc->vendor_id); |
799 | 40021f08 | Anthony Liguori | pci_config_set_device_id(pci_dev->config, pc->device_id); |
800 | 40021f08 | Anthony Liguori | pci_config_set_revision(pci_dev->config, pc->revision); |
801 | 40021f08 | Anthony Liguori | pci_config_set_class(pci_dev->config, pc->class_id); |
802 | 113f89df | Isaku Yamahata | |
803 | 40021f08 | Anthony Liguori | if (!pc->is_bridge) {
|
804 | 40021f08 | Anthony Liguori | if (pc->subsystem_vendor_id || pc->subsystem_id) {
|
805 | 113f89df | Isaku Yamahata | pci_set_word(pci_dev->config + PCI_SUBSYSTEM_VENDOR_ID, |
806 | 40021f08 | Anthony Liguori | pc->subsystem_vendor_id); |
807 | 113f89df | Isaku Yamahata | pci_set_word(pci_dev->config + PCI_SUBSYSTEM_ID, |
808 | 40021f08 | Anthony Liguori | pc->subsystem_id); |
809 | 113f89df | Isaku Yamahata | } else {
|
810 | 113f89df | Isaku Yamahata | pci_set_default_subsystem_id(pci_dev); |
811 | 113f89df | Isaku Yamahata | } |
812 | 113f89df | Isaku Yamahata | } else {
|
813 | 113f89df | Isaku Yamahata | /* subsystem_vendor_id/subsystem_id are only for header type 0 */
|
814 | 40021f08 | Anthony Liguori | assert(!pc->subsystem_vendor_id); |
815 | 40021f08 | Anthony Liguori | assert(!pc->subsystem_id); |
816 | fb231628 | Isaku Yamahata | } |
817 | bd4b65ee | Michael S. Tsirkin | pci_init_cmask(pci_dev); |
818 | b7ee1603 | Michael S. Tsirkin | pci_init_wmask(pci_dev); |
819 | 89d437df | Isaku Yamahata | pci_init_w1cmask(pci_dev); |
820 | 40021f08 | Anthony Liguori | if (pc->is_bridge) {
|
821 | d5f27e88 | Michael S. Tsirkin | pci_init_mask_bridge(pci_dev); |
822 | fb231628 | Isaku Yamahata | } |
823 | 6eab3de1 | Isaku Yamahata | if (pci_init_multifunction(bus, pci_dev)) {
|
824 | 6eab3de1 | Isaku Yamahata | pci_config_free(pci_dev); |
825 | 6eab3de1 | Isaku Yamahata | return NULL; |
826 | 6eab3de1 | Isaku Yamahata | } |
827 | 0ac32c83 | bellard | |
828 | 0ac32c83 | bellard | if (!config_read)
|
829 | 0ac32c83 | bellard | config_read = pci_default_read_config; |
830 | 0ac32c83 | bellard | if (!config_write)
|
831 | 0ac32c83 | bellard | config_write = pci_default_write_config; |
832 | 69b91039 | bellard | pci_dev->config_read = config_read; |
833 | 69b91039 | bellard | pci_dev->config_write = config_write; |
834 | 30468f78 | bellard | bus->devices[devfn] = pci_dev; |
835 | e369cad7 | Isaku Yamahata | pci_dev->irq = qemu_allocate_irqs(pci_set_irq, pci_dev, PCI_NUM_PINS); |
836 | f16c4abf | Juan Quintela | pci_dev->version_id = 2; /* Current pci device vmstate version */ |
837 | 69b91039 | bellard | return pci_dev;
|
838 | 69b91039 | bellard | } |
839 | 69b91039 | bellard | |
840 | 925fe64a | Alex Williamson | static void do_pci_unregister_device(PCIDevice *pci_dev) |
841 | 925fe64a | Alex Williamson | { |
842 | 925fe64a | Alex Williamson | qemu_free_irqs(pci_dev->irq); |
843 | 925fe64a | Alex Williamson | pci_dev->bus->devices[pci_dev->devfn] = NULL;
|
844 | 925fe64a | Alex Williamson | pci_config_free(pci_dev); |
845 | 817dcc53 | Avi Kivity | |
846 | 817dcc53 | Avi Kivity | if (!pci_dev->bus->dma_context_fn) {
|
847 | 817dcc53 | Avi Kivity | address_space_destroy(&pci_dev->bus_master_as); |
848 | 1c380f94 | Avi Kivity | memory_region_destroy(&pci_dev->bus_master_enable_region); |
849 | 817dcc53 | Avi Kivity | g_free(pci_dev->dma); |
850 | 817dcc53 | Avi Kivity | pci_dev->dma = NULL;
|
851 | 817dcc53 | Avi Kivity | } |
852 | 925fe64a | Alex Williamson | } |
853 | 925fe64a | Alex Williamson | |
854 | 5851e08c | aliguori | static void pci_unregister_io_regions(PCIDevice *pci_dev) |
855 | 5851e08c | aliguori | { |
856 | 5851e08c | aliguori | PCIIORegion *r; |
857 | 5851e08c | aliguori | int i;
|
858 | 5851e08c | aliguori | |
859 | 5851e08c | aliguori | for(i = 0; i < PCI_NUM_REGIONS; i++) { |
860 | 5851e08c | aliguori | r = &pci_dev->io_regions[i]; |
861 | 182f9c8a | Isaku Yamahata | if (!r->size || r->addr == PCI_BAR_UNMAPPED)
|
862 | 5851e08c | aliguori | continue;
|
863 | 03952339 | Avi Kivity | memory_region_del_subregion(r->address_space, r->memory); |
864 | 5851e08c | aliguori | } |
865 | 5851e08c | aliguori | } |
866 | 5851e08c | aliguori | |
867 | a36a344d | Gerd Hoffmann | static int pci_unregister_device(DeviceState *dev) |
868 | 5851e08c | aliguori | { |
869 | 40021f08 | Anthony Liguori | PCIDevice *pci_dev = PCI_DEVICE(dev); |
870 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev); |
871 | 5851e08c | aliguori | |
872 | 5851e08c | aliguori | pci_unregister_io_regions(pci_dev); |
873 | 230741dc | Alex Williamson | pci_del_option_rom(pci_dev); |
874 | 7cf1b0fd | Alex Williamson | |
875 | f90c2bcd | Alex Williamson | if (pc->exit) {
|
876 | f90c2bcd | Alex Williamson | pc->exit(pci_dev); |
877 | f90c2bcd | Alex Williamson | } |
878 | 5851e08c | aliguori | |
879 | 925fe64a | Alex Williamson | do_pci_unregister_device(pci_dev); |
880 | 5851e08c | aliguori | return 0; |
881 | 5851e08c | aliguori | } |
882 | 5851e08c | aliguori | |
883 | e824b2cc | Avi Kivity | void pci_register_bar(PCIDevice *pci_dev, int region_num, |
884 | e824b2cc | Avi Kivity | uint8_t type, MemoryRegion *memory) |
885 | 69b91039 | bellard | { |
886 | 69b91039 | bellard | PCIIORegion *r; |
887 | d7ce493a | pbrook | uint32_t addr; |
888 | 5a9ff381 | Isaku Yamahata | uint64_t wmask; |
889 | cfc0be25 | Avi Kivity | pcibus_t size = memory_region_size(memory); |
890 | a4c20c6a | aliguori | |
891 | 2bbb9c2f | Isaku Yamahata | assert(region_num >= 0);
|
892 | 2bbb9c2f | Isaku Yamahata | assert(region_num < PCI_NUM_REGIONS); |
893 | a4c20c6a | aliguori | if (size & (size-1)) { |
894 | a4c20c6a | aliguori | fprintf(stderr, "ERROR: PCI region size must be pow2 "
|
895 | 89e8b13c | Isaku Yamahata | "type=0x%x, size=0x%"FMT_PCIBUS"\n", type, size); |
896 | a4c20c6a | aliguori | exit(1);
|
897 | a4c20c6a | aliguori | } |
898 | a4c20c6a | aliguori | |
899 | 69b91039 | bellard | r = &pci_dev->io_regions[region_num]; |
900 | 182f9c8a | Isaku Yamahata | r->addr = PCI_BAR_UNMAPPED; |
901 | 69b91039 | bellard | r->size = size; |
902 | 69b91039 | bellard | r->type = type; |
903 | 79ff8cb0 | Avi Kivity | r->memory = NULL;
|
904 | b7ee1603 | Michael S. Tsirkin | |
905 | b7ee1603 | Michael S. Tsirkin | wmask = ~(size - 1);
|
906 | b3b11697 | Isaku Yamahata | addr = pci_bar(pci_dev, region_num); |
907 | d7ce493a | pbrook | if (region_num == PCI_ROM_SLOT) {
|
908 | ebabb67a | Stefan Weil | /* ROM enable bit is writable */
|
909 | 5330de09 | Michael S. Tsirkin | wmask |= PCI_ROM_ADDRESS_ENABLE; |
910 | d7ce493a | pbrook | } |
911 | b0ff8eb2 | Isaku Yamahata | pci_set_long(pci_dev->config + addr, type); |
912 | 14421258 | Isaku Yamahata | if (!(r->type & PCI_BASE_ADDRESS_SPACE_IO) &&
|
913 | 14421258 | Isaku Yamahata | r->type & PCI_BASE_ADDRESS_MEM_TYPE_64) { |
914 | 14421258 | Isaku Yamahata | pci_set_quad(pci_dev->wmask + addr, wmask); |
915 | 14421258 | Isaku Yamahata | pci_set_quad(pci_dev->cmask + addr, ~0ULL);
|
916 | 14421258 | Isaku Yamahata | } else {
|
917 | 14421258 | Isaku Yamahata | pci_set_long(pci_dev->wmask + addr, wmask & 0xffffffff);
|
918 | 14421258 | Isaku Yamahata | pci_set_long(pci_dev->cmask + addr, 0xffffffff);
|
919 | 14421258 | Isaku Yamahata | } |
920 | 79ff8cb0 | Avi Kivity | pci_dev->io_regions[region_num].memory = memory; |
921 | 5968eca3 | Avi Kivity | pci_dev->io_regions[region_num].address_space |
922 | cfc0be25 | Avi Kivity | = type & PCI_BASE_ADDRESS_SPACE_IO |
923 | 5968eca3 | Avi Kivity | ? pci_dev->bus->address_space_io |
924 | 5968eca3 | Avi Kivity | : pci_dev->bus->address_space_mem; |
925 | 79ff8cb0 | Avi Kivity | } |
926 | 79ff8cb0 | Avi Kivity | |
927 | 16a96f28 | Avi Kivity | pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num)
|
928 | 16a96f28 | Avi Kivity | { |
929 | 16a96f28 | Avi Kivity | return pci_dev->io_regions[region_num].addr;
|
930 | 16a96f28 | Avi Kivity | } |
931 | 16a96f28 | Avi Kivity | |
932 | 876a350d | Michael S. Tsirkin | static pcibus_t pci_bar_address(PCIDevice *d,
|
933 | 876a350d | Michael S. Tsirkin | int reg, uint8_t type, pcibus_t size)
|
934 | 876a350d | Michael S. Tsirkin | { |
935 | 876a350d | Michael S. Tsirkin | pcibus_t new_addr, last_addr; |
936 | 876a350d | Michael S. Tsirkin | int bar = pci_bar(d, reg);
|
937 | 876a350d | Michael S. Tsirkin | uint16_t cmd = pci_get_word(d->config + PCI_COMMAND); |
938 | 876a350d | Michael S. Tsirkin | |
939 | 876a350d | Michael S. Tsirkin | if (type & PCI_BASE_ADDRESS_SPACE_IO) {
|
940 | 876a350d | Michael S. Tsirkin | if (!(cmd & PCI_COMMAND_IO)) {
|
941 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
942 | 876a350d | Michael S. Tsirkin | } |
943 | 876a350d | Michael S. Tsirkin | new_addr = pci_get_long(d->config + bar) & ~(size - 1);
|
944 | 876a350d | Michael S. Tsirkin | last_addr = new_addr + size - 1;
|
945 | 876a350d | Michael S. Tsirkin | /* NOTE: we have only 64K ioports on PC */
|
946 | 876a350d | Michael S. Tsirkin | if (last_addr <= new_addr || new_addr == 0 || last_addr > UINT16_MAX) { |
947 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
948 | 876a350d | Michael S. Tsirkin | } |
949 | 876a350d | Michael S. Tsirkin | return new_addr;
|
950 | 876a350d | Michael S. Tsirkin | } |
951 | 876a350d | Michael S. Tsirkin | |
952 | 876a350d | Michael S. Tsirkin | if (!(cmd & PCI_COMMAND_MEMORY)) {
|
953 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
954 | 876a350d | Michael S. Tsirkin | } |
955 | 876a350d | Michael S. Tsirkin | if (type & PCI_BASE_ADDRESS_MEM_TYPE_64) {
|
956 | 876a350d | Michael S. Tsirkin | new_addr = pci_get_quad(d->config + bar); |
957 | 876a350d | Michael S. Tsirkin | } else {
|
958 | 876a350d | Michael S. Tsirkin | new_addr = pci_get_long(d->config + bar); |
959 | 876a350d | Michael S. Tsirkin | } |
960 | 876a350d | Michael S. Tsirkin | /* the ROM slot has a specific enable bit */
|
961 | 876a350d | Michael S. Tsirkin | if (reg == PCI_ROM_SLOT && !(new_addr & PCI_ROM_ADDRESS_ENABLE)) {
|
962 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
963 | 876a350d | Michael S. Tsirkin | } |
964 | 876a350d | Michael S. Tsirkin | new_addr &= ~(size - 1);
|
965 | 876a350d | Michael S. Tsirkin | last_addr = new_addr + size - 1;
|
966 | 876a350d | Michael S. Tsirkin | /* NOTE: we do not support wrapping */
|
967 | 876a350d | Michael S. Tsirkin | /* XXX: as we cannot support really dynamic
|
968 | 876a350d | Michael S. Tsirkin | mappings, we handle specific values as invalid
|
969 | 876a350d | Michael S. Tsirkin | mappings. */
|
970 | 876a350d | Michael S. Tsirkin | if (last_addr <= new_addr || new_addr == 0 || |
971 | 876a350d | Michael S. Tsirkin | last_addr == PCI_BAR_UNMAPPED) { |
972 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
973 | 876a350d | Michael S. Tsirkin | } |
974 | 876a350d | Michael S. Tsirkin | |
975 | 876a350d | Michael S. Tsirkin | /* Now pcibus_t is 64bit.
|
976 | 876a350d | Michael S. Tsirkin | * Check if 32 bit BAR wraps around explicitly.
|
977 | 876a350d | Michael S. Tsirkin | * Without this, PC ide doesn't work well.
|
978 | 876a350d | Michael S. Tsirkin | * TODO: remove this work around.
|
979 | 876a350d | Michael S. Tsirkin | */
|
980 | 876a350d | Michael S. Tsirkin | if (!(type & PCI_BASE_ADDRESS_MEM_TYPE_64) && last_addr >= UINT32_MAX) {
|
981 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
982 | 876a350d | Michael S. Tsirkin | } |
983 | 876a350d | Michael S. Tsirkin | |
984 | 876a350d | Michael S. Tsirkin | /*
|
985 | 876a350d | Michael S. Tsirkin | * OS is allowed to set BAR beyond its addressable
|
986 | 876a350d | Michael S. Tsirkin | * bits. For example, 32 bit OS can set 64bit bar
|
987 | 876a350d | Michael S. Tsirkin | * to >4G. Check it. TODO: we might need to support
|
988 | 876a350d | Michael S. Tsirkin | * it in the future for e.g. PAE.
|
989 | 876a350d | Michael S. Tsirkin | */
|
990 | a8170e5e | Avi Kivity | if (last_addr >= HWADDR_MAX) {
|
991 | 876a350d | Michael S. Tsirkin | return PCI_BAR_UNMAPPED;
|
992 | 876a350d | Michael S. Tsirkin | } |
993 | 876a350d | Michael S. Tsirkin | |
994 | 876a350d | Michael S. Tsirkin | return new_addr;
|
995 | 876a350d | Michael S. Tsirkin | } |
996 | 876a350d | Michael S. Tsirkin | |
997 | 0ac32c83 | bellard | static void pci_update_mappings(PCIDevice *d) |
998 | 0ac32c83 | bellard | { |
999 | 0ac32c83 | bellard | PCIIORegion *r; |
1000 | 876a350d | Michael S. Tsirkin | int i;
|
1001 | 7df32ca0 | Michael S. Tsirkin | pcibus_t new_addr; |
1002 | 3b46e624 | ths | |
1003 | 8a8696a3 | bellard | for(i = 0; i < PCI_NUM_REGIONS; i++) { |
1004 | 0ac32c83 | bellard | r = &d->io_regions[i]; |
1005 | a9688570 | Isaku Yamahata | |
1006 | a9688570 | Isaku Yamahata | /* this region isn't registered */
|
1007 | ec503442 | Isaku Yamahata | if (!r->size)
|
1008 | a9688570 | Isaku Yamahata | continue;
|
1009 | a9688570 | Isaku Yamahata | |
1010 | 876a350d | Michael S. Tsirkin | new_addr = pci_bar_address(d, i, r->type, r->size); |
1011 | a9688570 | Isaku Yamahata | |
1012 | a9688570 | Isaku Yamahata | /* This bar isn't changed */
|
1013 | 7df32ca0 | Michael S. Tsirkin | if (new_addr == r->addr)
|
1014 | a9688570 | Isaku Yamahata | continue;
|
1015 | a9688570 | Isaku Yamahata | |
1016 | a9688570 | Isaku Yamahata | /* now do the real mapping */
|
1017 | a9688570 | Isaku Yamahata | if (r->addr != PCI_BAR_UNMAPPED) {
|
1018 | 03952339 | Avi Kivity | memory_region_del_subregion(r->address_space, r->memory); |
1019 | 0ac32c83 | bellard | } |
1020 | a9688570 | Isaku Yamahata | r->addr = new_addr; |
1021 | a9688570 | Isaku Yamahata | if (r->addr != PCI_BAR_UNMAPPED) {
|
1022 | 8b881e77 | Avi Kivity | memory_region_add_subregion_overlap(r->address_space, |
1023 | 8b881e77 | Avi Kivity | r->addr, r->memory, 1);
|
1024 | a9688570 | Isaku Yamahata | } |
1025 | 0ac32c83 | bellard | } |
1026 | 0ac32c83 | bellard | } |
1027 | 0ac32c83 | bellard | |
1028 | a7b15a5c | Michael S. Tsirkin | static inline int pci_irq_disabled(PCIDevice *d) |
1029 | a7b15a5c | Michael S. Tsirkin | { |
1030 | a7b15a5c | Michael S. Tsirkin | return pci_get_word(d->config + PCI_COMMAND) & PCI_COMMAND_INTX_DISABLE;
|
1031 | a7b15a5c | Michael S. Tsirkin | } |
1032 | a7b15a5c | Michael S. Tsirkin | |
1033 | a7b15a5c | Michael S. Tsirkin | /* Called after interrupt disabled field update in config space,
|
1034 | a7b15a5c | Michael S. Tsirkin | * assert/deassert interrupts if necessary.
|
1035 | a7b15a5c | Michael S. Tsirkin | * Gets original interrupt disable bit value (before update). */
|
1036 | a7b15a5c | Michael S. Tsirkin | static void pci_update_irq_disabled(PCIDevice *d, int was_irq_disabled) |
1037 | a7b15a5c | Michael S. Tsirkin | { |
1038 | a7b15a5c | Michael S. Tsirkin | int i, disabled = pci_irq_disabled(d);
|
1039 | a7b15a5c | Michael S. Tsirkin | if (disabled == was_irq_disabled)
|
1040 | a7b15a5c | Michael S. Tsirkin | return;
|
1041 | a7b15a5c | Michael S. Tsirkin | for (i = 0; i < PCI_NUM_PINS; ++i) { |
1042 | a7b15a5c | Michael S. Tsirkin | int state = pci_irq_state(d, i);
|
1043 | a7b15a5c | Michael S. Tsirkin | pci_change_irq_level(d, i, disabled ? -state : state); |
1044 | a7b15a5c | Michael S. Tsirkin | } |
1045 | a7b15a5c | Michael S. Tsirkin | } |
1046 | a7b15a5c | Michael S. Tsirkin | |
1047 | 5fafdf24 | ths | uint32_t pci_default_read_config(PCIDevice *d, |
1048 | 0ac32c83 | bellard | uint32_t address, int len)
|
1049 | 69b91039 | bellard | { |
1050 | 5029fe12 | Isaku Yamahata | uint32_t val = 0;
|
1051 | 42e4126b | Jan Kiszka | |
1052 | 5029fe12 | Isaku Yamahata | memcpy(&val, d->config + address, len); |
1053 | 5029fe12 | Isaku Yamahata | return le32_to_cpu(val);
|
1054 | 0ac32c83 | bellard | } |
1055 | 0ac32c83 | bellard | |
1056 | b7ee1603 | Michael S. Tsirkin | void pci_default_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l) |
1057 | 0ac32c83 | bellard | { |
1058 | a7b15a5c | Michael S. Tsirkin | int i, was_irq_disabled = pci_irq_disabled(d);
|
1059 | 0ac32c83 | bellard | |
1060 | 42e4126b | Jan Kiszka | for (i = 0; i < l; val >>= 8, ++i) { |
1061 | 91011d4f | Stefan Weil | uint8_t wmask = d->wmask[addr + i]; |
1062 | 92ba5f51 | Isaku Yamahata | uint8_t w1cmask = d->w1cmask[addr + i]; |
1063 | 92ba5f51 | Isaku Yamahata | assert(!(wmask & w1cmask)); |
1064 | 91011d4f | Stefan Weil | d->config[addr + i] = (d->config[addr + i] & ~wmask) | (val & wmask); |
1065 | 92ba5f51 | Isaku Yamahata | d->config[addr + i] &= ~(val & w1cmask); /* W1C: Write 1 to Clear */
|
1066 | 0ac32c83 | bellard | } |
1067 | 260c0cd3 | Isaku Yamahata | if (ranges_overlap(addr, l, PCI_BASE_ADDRESS_0, 24) || |
1068 | edb00035 | Isaku Yamahata | ranges_overlap(addr, l, PCI_ROM_ADDRESS, 4) ||
|
1069 | edb00035 | Isaku Yamahata | ranges_overlap(addr, l, PCI_ROM_ADDRESS1, 4) ||
|
1070 | 260c0cd3 | Isaku Yamahata | range_covers_byte(addr, l, PCI_COMMAND)) |
1071 | 0ac32c83 | bellard | pci_update_mappings(d); |
1072 | a7b15a5c | Michael S. Tsirkin | |
1073 | 1c380f94 | Avi Kivity | if (range_covers_byte(addr, l, PCI_COMMAND)) {
|
1074 | a7b15a5c | Michael S. Tsirkin | pci_update_irq_disabled(d, was_irq_disabled); |
1075 | 1c380f94 | Avi Kivity | memory_region_set_enabled(&d->bus_master_enable_region, |
1076 | 1c380f94 | Avi Kivity | pci_get_word(d->config + PCI_COMMAND) |
1077 | 1c380f94 | Avi Kivity | & PCI_COMMAND_MASTER); |
1078 | 1c380f94 | Avi Kivity | } |
1079 | 95d65800 | Jan Kiszka | |
1080 | 95d65800 | Jan Kiszka | msi_write_config(d, addr, val, l); |
1081 | 95d65800 | Jan Kiszka | msix_write_config(d, addr, val, l); |
1082 | 69b91039 | bellard | } |
1083 | 69b91039 | bellard | |
1084 | 502a5395 | pbrook | /***********************************************************/
|
1085 | 502a5395 | pbrook | /* generic PCI irq support */
|
1086 | 30468f78 | bellard | |
1087 | 502a5395 | pbrook | /* 0 <= irq_num <= 3. level must be 0 or 1 */
|
1088 | d537cf6c | pbrook | static void pci_set_irq(void *opaque, int irq_num, int level) |
1089 | 69b91039 | bellard | { |
1090 | a60380a5 | Juan Quintela | PCIDevice *pci_dev = opaque; |
1091 | 80b3ada7 | pbrook | int change;
|
1092 | 3b46e624 | ths | |
1093 | d036bb21 | Michael S. Tsirkin | change = level - pci_irq_state(pci_dev, irq_num); |
1094 | 80b3ada7 | pbrook | if (!change)
|
1095 | 80b3ada7 | pbrook | return;
|
1096 | d2b59317 | pbrook | |
1097 | d036bb21 | Michael S. Tsirkin | pci_set_irq_state(pci_dev, irq_num, level); |
1098 | f9bf77dd | Michael S. Tsirkin | pci_update_irq_status(pci_dev); |
1099 | a7b15a5c | Michael S. Tsirkin | if (pci_irq_disabled(pci_dev))
|
1100 | a7b15a5c | Michael S. Tsirkin | return;
|
1101 | d036bb21 | Michael S. Tsirkin | pci_change_irq_level(pci_dev, irq_num, change); |
1102 | 69b91039 | bellard | } |
1103 | 69b91039 | bellard | |
1104 | 3afa9bb4 | Michael S. Tsirkin | /* Special hooks used by device assignment */
|
1105 | 3afa9bb4 | Michael S. Tsirkin | void pci_bus_set_route_irq_fn(PCIBus *bus, pci_route_irq_fn route_intx_to_irq)
|
1106 | 3afa9bb4 | Michael S. Tsirkin | { |
1107 | 3afa9bb4 | Michael S. Tsirkin | assert(!bus->parent_dev); |
1108 | 3afa9bb4 | Michael S. Tsirkin | bus->route_intx_to_irq = route_intx_to_irq; |
1109 | 3afa9bb4 | Michael S. Tsirkin | } |
1110 | 3afa9bb4 | Michael S. Tsirkin | |
1111 | 3afa9bb4 | Michael S. Tsirkin | PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin)
|
1112 | 3afa9bb4 | Michael S. Tsirkin | { |
1113 | 3afa9bb4 | Michael S. Tsirkin | PCIBus *bus; |
1114 | 3afa9bb4 | Michael S. Tsirkin | |
1115 | 3afa9bb4 | Michael S. Tsirkin | do {
|
1116 | 3afa9bb4 | Michael S. Tsirkin | bus = dev->bus; |
1117 | 3afa9bb4 | Michael S. Tsirkin | pin = bus->map_irq(dev, pin); |
1118 | 3afa9bb4 | Michael S. Tsirkin | dev = bus->parent_dev; |
1119 | 3afa9bb4 | Michael S. Tsirkin | } while (dev);
|
1120 | 05c0621e | Alex Williamson | |
1121 | 05c0621e | Alex Williamson | if (!bus->route_intx_to_irq) {
|
1122 | 05c0621e | Alex Williamson | error_report("PCI: Bug - unimplemented PCI INTx routing (%s)\n",
|
1123 | 05c0621e | Alex Williamson | object_get_typename(OBJECT(bus->qbus.parent))); |
1124 | 05c0621e | Alex Williamson | return (PCIINTxRoute) { PCI_INTX_DISABLED, -1 }; |
1125 | 05c0621e | Alex Williamson | } |
1126 | 05c0621e | Alex Williamson | |
1127 | 3afa9bb4 | Michael S. Tsirkin | return bus->route_intx_to_irq(bus->irq_opaque, pin);
|
1128 | 0ae16251 | Jan Kiszka | } |
1129 | 0ae16251 | Jan Kiszka | |
1130 | d6e65d54 | Alex Williamson | bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new)
|
1131 | d6e65d54 | Alex Williamson | { |
1132 | d6e65d54 | Alex Williamson | return old->mode != new->mode || old->irq != new->irq;
|
1133 | d6e65d54 | Alex Williamson | } |
1134 | d6e65d54 | Alex Williamson | |
1135 | 0ae16251 | Jan Kiszka | void pci_bus_fire_intx_routing_notifier(PCIBus *bus)
|
1136 | 0ae16251 | Jan Kiszka | { |
1137 | 0ae16251 | Jan Kiszka | PCIDevice *dev; |
1138 | 0ae16251 | Jan Kiszka | PCIBus *sec; |
1139 | 0ae16251 | Jan Kiszka | int i;
|
1140 | 0ae16251 | Jan Kiszka | |
1141 | 0ae16251 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(bus->devices); ++i) { |
1142 | 0ae16251 | Jan Kiszka | dev = bus->devices[i]; |
1143 | 0ae16251 | Jan Kiszka | if (dev && dev->intx_routing_notifier) {
|
1144 | 0ae16251 | Jan Kiszka | dev->intx_routing_notifier(dev); |
1145 | 0ae16251 | Jan Kiszka | } |
1146 | 0ae16251 | Jan Kiszka | QLIST_FOREACH(sec, &bus->child, sibling) { |
1147 | 0ae16251 | Jan Kiszka | pci_bus_fire_intx_routing_notifier(sec); |
1148 | 0ae16251 | Jan Kiszka | } |
1149 | 0ae16251 | Jan Kiszka | } |
1150 | 0ae16251 | Jan Kiszka | } |
1151 | 0ae16251 | Jan Kiszka | |
1152 | 0ae16251 | Jan Kiszka | void pci_device_set_intx_routing_notifier(PCIDevice *dev,
|
1153 | 0ae16251 | Jan Kiszka | PCIINTxRoutingNotifier notifier) |
1154 | 0ae16251 | Jan Kiszka | { |
1155 | 0ae16251 | Jan Kiszka | dev->intx_routing_notifier = notifier; |
1156 | 69b91039 | bellard | } |
1157 | 69b91039 | bellard | |
1158 | 91e56159 | Isaku Yamahata | /*
|
1159 | 91e56159 | Isaku Yamahata | * PCI-to-PCI bridge specification
|
1160 | 91e56159 | Isaku Yamahata | * 9.1: Interrupt routing. Table 9-1
|
1161 | 91e56159 | Isaku Yamahata | *
|
1162 | 91e56159 | Isaku Yamahata | * the PCI Express Base Specification, Revision 2.1
|
1163 | 91e56159 | Isaku Yamahata | * 2.2.8.1: INTx interrutp signaling - Rules
|
1164 | 91e56159 | Isaku Yamahata | * the Implementation Note
|
1165 | 91e56159 | Isaku Yamahata | * Table 2-20
|
1166 | 91e56159 | Isaku Yamahata | */
|
1167 | 91e56159 | Isaku Yamahata | /*
|
1168 | 91e56159 | Isaku Yamahata | * 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD
|
1169 | 91e56159 | Isaku Yamahata | * 0-origin unlike PCI interrupt pin register.
|
1170 | 91e56159 | Isaku Yamahata | */
|
1171 | 91e56159 | Isaku Yamahata | int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin) |
1172 | 91e56159 | Isaku Yamahata | { |
1173 | 91e56159 | Isaku Yamahata | return (pin + PCI_SLOT(pci_dev->devfn)) % PCI_NUM_PINS;
|
1174 | 91e56159 | Isaku Yamahata | } |
1175 | 91e56159 | Isaku Yamahata | |
1176 | 502a5395 | pbrook | /***********************************************************/
|
1177 | 502a5395 | pbrook | /* monitor info on PCI */
|
1178 | 0ac32c83 | bellard | |
1179 | 6650ee6d | pbrook | typedef struct { |
1180 | 6650ee6d | pbrook | uint16_t class; |
1181 | 6650ee6d | pbrook | const char *desc; |
1182 | 5e0259e7 | Gleb Natapov | const char *fw_name; |
1183 | 5e0259e7 | Gleb Natapov | uint16_t fw_ign_bits; |
1184 | 6650ee6d | pbrook | } pci_class_desc; |
1185 | 6650ee6d | pbrook | |
1186 | 09bc878a | blueswir1 | static const pci_class_desc pci_class_descriptions[] = |
1187 | 6650ee6d | pbrook | { |
1188 | 5e0259e7 | Gleb Natapov | { 0x0001, "VGA controller", "display"}, |
1189 | 5e0259e7 | Gleb Natapov | { 0x0100, "SCSI controller", "scsi"}, |
1190 | 5e0259e7 | Gleb Natapov | { 0x0101, "IDE controller", "ide"}, |
1191 | 5e0259e7 | Gleb Natapov | { 0x0102, "Floppy controller", "fdc"}, |
1192 | 5e0259e7 | Gleb Natapov | { 0x0103, "IPI controller", "ipi"}, |
1193 | 5e0259e7 | Gleb Natapov | { 0x0104, "RAID controller", "raid"}, |
1194 | dcb5b19a | ths | { 0x0106, "SATA controller"}, |
1195 | dcb5b19a | ths | { 0x0107, "SAS controller"}, |
1196 | dcb5b19a | ths | { 0x0180, "Storage controller"}, |
1197 | 5e0259e7 | Gleb Natapov | { 0x0200, "Ethernet controller", "ethernet"}, |
1198 | 5e0259e7 | Gleb Natapov | { 0x0201, "Token Ring controller", "token-ring"}, |
1199 | 5e0259e7 | Gleb Natapov | { 0x0202, "FDDI controller", "fddi"}, |
1200 | 5e0259e7 | Gleb Natapov | { 0x0203, "ATM controller", "atm"}, |
1201 | dcb5b19a | ths | { 0x0280, "Network controller"}, |
1202 | 5e0259e7 | Gleb Natapov | { 0x0300, "VGA controller", "display", 0x00ff}, |
1203 | dcb5b19a | ths | { 0x0301, "XGA controller"}, |
1204 | dcb5b19a | ths | { 0x0302, "3D controller"}, |
1205 | dcb5b19a | ths | { 0x0380, "Display controller"}, |
1206 | 5e0259e7 | Gleb Natapov | { 0x0400, "Video controller", "video"}, |
1207 | 5e0259e7 | Gleb Natapov | { 0x0401, "Audio controller", "sound"}, |
1208 | dcb5b19a | ths | { 0x0402, "Phone"}, |
1209 | 602ef4d9 | Jan Kiszka | { 0x0403, "Audio controller", "sound"}, |
1210 | dcb5b19a | ths | { 0x0480, "Multimedia controller"}, |
1211 | 5e0259e7 | Gleb Natapov | { 0x0500, "RAM controller", "memory"}, |
1212 | 5e0259e7 | Gleb Natapov | { 0x0501, "Flash controller", "flash"}, |
1213 | dcb5b19a | ths | { 0x0580, "Memory controller"}, |
1214 | 5e0259e7 | Gleb Natapov | { 0x0600, "Host bridge", "host"}, |
1215 | 5e0259e7 | Gleb Natapov | { 0x0601, "ISA bridge", "isa"}, |
1216 | 5e0259e7 | Gleb Natapov | { 0x0602, "EISA bridge", "eisa"}, |
1217 | 5e0259e7 | Gleb Natapov | { 0x0603, "MC bridge", "mca"}, |
1218 | 5e0259e7 | Gleb Natapov | { 0x0604, "PCI bridge", "pci"}, |
1219 | 5e0259e7 | Gleb Natapov | { 0x0605, "PCMCIA bridge", "pcmcia"}, |
1220 | 5e0259e7 | Gleb Natapov | { 0x0606, "NUBUS bridge", "nubus"}, |
1221 | 5e0259e7 | Gleb Natapov | { 0x0607, "CARDBUS bridge", "cardbus"}, |
1222 | dcb5b19a | ths | { 0x0608, "RACEWAY bridge"}, |
1223 | dcb5b19a | ths | { 0x0680, "Bridge"}, |
1224 | 5e0259e7 | Gleb Natapov | { 0x0700, "Serial port", "serial"}, |
1225 | 5e0259e7 | Gleb Natapov | { 0x0701, "Parallel port", "parallel"}, |
1226 | 5e0259e7 | Gleb Natapov | { 0x0800, "Interrupt controller", "interrupt-controller"}, |
1227 | 5e0259e7 | Gleb Natapov | { 0x0801, "DMA controller", "dma-controller"}, |
1228 | 5e0259e7 | Gleb Natapov | { 0x0802, "Timer", "timer"}, |
1229 | 5e0259e7 | Gleb Natapov | { 0x0803, "RTC", "rtc"}, |
1230 | 5e0259e7 | Gleb Natapov | { 0x0900, "Keyboard", "keyboard"}, |
1231 | 5e0259e7 | Gleb Natapov | { 0x0901, "Pen", "pen"}, |
1232 | 5e0259e7 | Gleb Natapov | { 0x0902, "Mouse", "mouse"}, |
1233 | 5e0259e7 | Gleb Natapov | { 0x0A00, "Dock station", "dock", 0x00ff}, |
1234 | 5e0259e7 | Gleb Natapov | { 0x0B00, "i386 cpu", "cpu", 0x00ff}, |
1235 | 5e0259e7 | Gleb Natapov | { 0x0c00, "Fireware contorller", "fireware"}, |
1236 | 5e0259e7 | Gleb Natapov | { 0x0c01, "Access bus controller", "access-bus"}, |
1237 | 5e0259e7 | Gleb Natapov | { 0x0c02, "SSA controller", "ssa"}, |
1238 | 5e0259e7 | Gleb Natapov | { 0x0c03, "USB controller", "usb"}, |
1239 | 5e0259e7 | Gleb Natapov | { 0x0c04, "Fibre channel controller", "fibre-channel"}, |
1240 | f7748569 | Jan Kiszka | { 0x0c05, "SMBus"}, |
1241 | 6650ee6d | pbrook | { 0, NULL} |
1242 | 6650ee6d | pbrook | }; |
1243 | 6650ee6d | pbrook | |
1244 | 163c8a59 | Luiz Capitulino | static void pci_for_each_device_under_bus(PCIBus *bus, |
1245 | 7aa8cbb9 | Anthony PERARD | void (*fn)(PCIBus *b, PCIDevice *d,
|
1246 | 7aa8cbb9 | Anthony PERARD | void *opaque),
|
1247 | 7aa8cbb9 | Anthony PERARD | void *opaque)
|
1248 | 30468f78 | bellard | { |
1249 | 163c8a59 | Luiz Capitulino | PCIDevice *d; |
1250 | 163c8a59 | Luiz Capitulino | int devfn;
|
1251 | 30468f78 | bellard | |
1252 | 163c8a59 | Luiz Capitulino | for(devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { |
1253 | 163c8a59 | Luiz Capitulino | d = bus->devices[devfn]; |
1254 | 163c8a59 | Luiz Capitulino | if (d) {
|
1255 | 7aa8cbb9 | Anthony PERARD | fn(bus, d, opaque); |
1256 | 163c8a59 | Luiz Capitulino | } |
1257 | 163c8a59 | Luiz Capitulino | } |
1258 | 163c8a59 | Luiz Capitulino | } |
1259 | 163c8a59 | Luiz Capitulino | |
1260 | 163c8a59 | Luiz Capitulino | void pci_for_each_device(PCIBus *bus, int bus_num, |
1261 | 7aa8cbb9 | Anthony PERARD | void (*fn)(PCIBus *b, PCIDevice *d, void *opaque), |
1262 | 7aa8cbb9 | Anthony PERARD | void *opaque)
|
1263 | 163c8a59 | Luiz Capitulino | { |
1264 | d662210a | Michael S. Tsirkin | bus = pci_find_bus_nr(bus, bus_num); |
1265 | 163c8a59 | Luiz Capitulino | |
1266 | 163c8a59 | Luiz Capitulino | if (bus) {
|
1267 | 7aa8cbb9 | Anthony PERARD | pci_for_each_device_under_bus(bus, fn, opaque); |
1268 | 163c8a59 | Luiz Capitulino | } |
1269 | 163c8a59 | Luiz Capitulino | } |
1270 | 163c8a59 | Luiz Capitulino | |
1271 | 79627472 | Luiz Capitulino | static const pci_class_desc *get_class_desc(int class) |
1272 | 163c8a59 | Luiz Capitulino | { |
1273 | 79627472 | Luiz Capitulino | const pci_class_desc *desc;
|
1274 | 163c8a59 | Luiz Capitulino | |
1275 | 79627472 | Luiz Capitulino | desc = pci_class_descriptions; |
1276 | 79627472 | Luiz Capitulino | while (desc->desc && class != desc->class) {
|
1277 | 79627472 | Luiz Capitulino | desc++; |
1278 | 30468f78 | bellard | } |
1279 | b4dccd8d | Isaku Yamahata | |
1280 | 79627472 | Luiz Capitulino | return desc;
|
1281 | 79627472 | Luiz Capitulino | } |
1282 | 14421258 | Isaku Yamahata | |
1283 | 79627472 | Luiz Capitulino | static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num); |
1284 | 163c8a59 | Luiz Capitulino | |
1285 | 79627472 | Luiz Capitulino | static PciMemoryRegionList *qmp_query_pci_regions(const PCIDevice *dev) |
1286 | 79627472 | Luiz Capitulino | { |
1287 | 79627472 | Luiz Capitulino | PciMemoryRegionList *head = NULL, *cur_item = NULL; |
1288 | 79627472 | Luiz Capitulino | int i;
|
1289 | 163c8a59 | Luiz Capitulino | |
1290 | 79627472 | Luiz Capitulino | for (i = 0; i < PCI_NUM_REGIONS; i++) { |
1291 | 79627472 | Luiz Capitulino | const PCIIORegion *r = &dev->io_regions[i];
|
1292 | 79627472 | Luiz Capitulino | PciMemoryRegionList *region; |
1293 | 79627472 | Luiz Capitulino | |
1294 | 79627472 | Luiz Capitulino | if (!r->size) {
|
1295 | 79627472 | Luiz Capitulino | continue;
|
1296 | 502a5395 | pbrook | } |
1297 | 163c8a59 | Luiz Capitulino | |
1298 | 79627472 | Luiz Capitulino | region = g_malloc0(sizeof(*region));
|
1299 | 79627472 | Luiz Capitulino | region->value = g_malloc0(sizeof(*region->value));
|
1300 | 163c8a59 | Luiz Capitulino | |
1301 | 79627472 | Luiz Capitulino | if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
|
1302 | 79627472 | Luiz Capitulino | region->value->type = g_strdup("io");
|
1303 | 79627472 | Luiz Capitulino | } else {
|
1304 | 79627472 | Luiz Capitulino | region->value->type = g_strdup("memory");
|
1305 | 79627472 | Luiz Capitulino | region->value->has_prefetch = true;
|
1306 | 79627472 | Luiz Capitulino | region->value->prefetch = !!(r->type & PCI_BASE_ADDRESS_MEM_PREFETCH); |
1307 | 79627472 | Luiz Capitulino | region->value->has_mem_type_64 = true;
|
1308 | 79627472 | Luiz Capitulino | region->value->mem_type_64 = !!(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64); |
1309 | d5e4acf7 | Luiz Capitulino | } |
1310 | 163c8a59 | Luiz Capitulino | |
1311 | 79627472 | Luiz Capitulino | region->value->bar = i; |
1312 | 79627472 | Luiz Capitulino | region->value->address = r->addr; |
1313 | 79627472 | Luiz Capitulino | region->value->size = r->size; |
1314 | 163c8a59 | Luiz Capitulino | |
1315 | 79627472 | Luiz Capitulino | /* XXX: waiting for the qapi to support GSList */
|
1316 | 79627472 | Luiz Capitulino | if (!cur_item) {
|
1317 | 79627472 | Luiz Capitulino | head = cur_item = region; |
1318 | 79627472 | Luiz Capitulino | } else {
|
1319 | 79627472 | Luiz Capitulino | cur_item->next = region; |
1320 | 79627472 | Luiz Capitulino | cur_item = region; |
1321 | 163c8a59 | Luiz Capitulino | } |
1322 | 80b3ada7 | pbrook | } |
1323 | 384d8876 | bellard | |
1324 | 79627472 | Luiz Capitulino | return head;
|
1325 | 163c8a59 | Luiz Capitulino | } |
1326 | 163c8a59 | Luiz Capitulino | |
1327 | 79627472 | Luiz Capitulino | static PciBridgeInfo *qmp_query_pci_bridge(PCIDevice *dev, PCIBus *bus,
|
1328 | 79627472 | Luiz Capitulino | int bus_num)
|
1329 | 163c8a59 | Luiz Capitulino | { |
1330 | 79627472 | Luiz Capitulino | PciBridgeInfo *info; |
1331 | 163c8a59 | Luiz Capitulino | |
1332 | 79627472 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1333 | 163c8a59 | Luiz Capitulino | |
1334 | 79627472 | Luiz Capitulino | info->bus.number = dev->config[PCI_PRIMARY_BUS]; |
1335 | 79627472 | Luiz Capitulino | info->bus.secondary = dev->config[PCI_SECONDARY_BUS]; |
1336 | 79627472 | Luiz Capitulino | info->bus.subordinate = dev->config[PCI_SUBORDINATE_BUS]; |
1337 | 163c8a59 | Luiz Capitulino | |
1338 | 79627472 | Luiz Capitulino | info->bus.io_range = g_malloc0(sizeof(*info->bus.io_range));
|
1339 | 79627472 | Luiz Capitulino | info->bus.io_range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_IO); |
1340 | 79627472 | Luiz Capitulino | info->bus.io_range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_IO); |
1341 | 163c8a59 | Luiz Capitulino | |
1342 | 79627472 | Luiz Capitulino | info->bus.memory_range = g_malloc0(sizeof(*info->bus.memory_range));
|
1343 | 79627472 | Luiz Capitulino | info->bus.memory_range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); |
1344 | 79627472 | Luiz Capitulino | info->bus.memory_range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_MEMORY); |
1345 | 163c8a59 | Luiz Capitulino | |
1346 | 79627472 | Luiz Capitulino | info->bus.prefetchable_range = g_malloc0(sizeof(*info->bus.prefetchable_range));
|
1347 | 79627472 | Luiz Capitulino | info->bus.prefetchable_range->base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); |
1348 | 79627472 | Luiz Capitulino | info->bus.prefetchable_range->limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_MEM_PREFETCH); |
1349 | 163c8a59 | Luiz Capitulino | |
1350 | 79627472 | Luiz Capitulino | if (dev->config[PCI_SECONDARY_BUS] != 0) { |
1351 | d662210a | Michael S. Tsirkin | PCIBus *child_bus = pci_find_bus_nr(bus, dev->config[PCI_SECONDARY_BUS]); |
1352 | 79627472 | Luiz Capitulino | if (child_bus) {
|
1353 | 79627472 | Luiz Capitulino | info->has_devices = true;
|
1354 | 79627472 | Luiz Capitulino | info->devices = qmp_query_pci_devices(child_bus, dev->config[PCI_SECONDARY_BUS]); |
1355 | 79627472 | Luiz Capitulino | } |
1356 | 163c8a59 | Luiz Capitulino | } |
1357 | 163c8a59 | Luiz Capitulino | |
1358 | 79627472 | Luiz Capitulino | return info;
|
1359 | 163c8a59 | Luiz Capitulino | } |
1360 | 163c8a59 | Luiz Capitulino | |
1361 | 79627472 | Luiz Capitulino | static PciDeviceInfo *qmp_query_pci_device(PCIDevice *dev, PCIBus *bus,
|
1362 | 79627472 | Luiz Capitulino | int bus_num)
|
1363 | 163c8a59 | Luiz Capitulino | { |
1364 | 79627472 | Luiz Capitulino | const pci_class_desc *desc;
|
1365 | 79627472 | Luiz Capitulino | PciDeviceInfo *info; |
1366 | b5937f29 | Isaku Yamahata | uint8_t type; |
1367 | 79627472 | Luiz Capitulino | int class;
|
1368 | 163c8a59 | Luiz Capitulino | |
1369 | 79627472 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1370 | 79627472 | Luiz Capitulino | info->bus = bus_num; |
1371 | 79627472 | Luiz Capitulino | info->slot = PCI_SLOT(dev->devfn); |
1372 | 79627472 | Luiz Capitulino | info->function = PCI_FUNC(dev->devfn); |
1373 | 79627472 | Luiz Capitulino | |
1374 | 79627472 | Luiz Capitulino | class = pci_get_word(dev->config + PCI_CLASS_DEVICE); |
1375 | 79627472 | Luiz Capitulino | info->class_info.class = class; |
1376 | 79627472 | Luiz Capitulino | desc = get_class_desc(class); |
1377 | 79627472 | Luiz Capitulino | if (desc->desc) {
|
1378 | 79627472 | Luiz Capitulino | info->class_info.has_desc = true;
|
1379 | 79627472 | Luiz Capitulino | info->class_info.desc = g_strdup(desc->desc); |
1380 | 79627472 | Luiz Capitulino | } |
1381 | 79627472 | Luiz Capitulino | |
1382 | 79627472 | Luiz Capitulino | info->id.vendor = pci_get_word(dev->config + PCI_VENDOR_ID); |
1383 | 79627472 | Luiz Capitulino | info->id.device = pci_get_word(dev->config + PCI_DEVICE_ID); |
1384 | 79627472 | Luiz Capitulino | info->regions = qmp_query_pci_regions(dev); |
1385 | 79627472 | Luiz Capitulino | info->qdev_id = g_strdup(dev->qdev.id ? dev->qdev.id : "");
|
1386 | 163c8a59 | Luiz Capitulino | |
1387 | 163c8a59 | Luiz Capitulino | if (dev->config[PCI_INTERRUPT_PIN] != 0) { |
1388 | 79627472 | Luiz Capitulino | info->has_irq = true;
|
1389 | 79627472 | Luiz Capitulino | info->irq = dev->config[PCI_INTERRUPT_LINE]; |
1390 | 163c8a59 | Luiz Capitulino | } |
1391 | 163c8a59 | Luiz Capitulino | |
1392 | b5937f29 | Isaku Yamahata | type = dev->config[PCI_HEADER_TYPE] & ~PCI_HEADER_TYPE_MULTI_FUNCTION; |
1393 | b5937f29 | Isaku Yamahata | if (type == PCI_HEADER_TYPE_BRIDGE) {
|
1394 | 79627472 | Luiz Capitulino | info->has_pci_bridge = true;
|
1395 | 79627472 | Luiz Capitulino | info->pci_bridge = qmp_query_pci_bridge(dev, bus, bus_num); |
1396 | 163c8a59 | Luiz Capitulino | } |
1397 | 163c8a59 | Luiz Capitulino | |
1398 | 79627472 | Luiz Capitulino | return info;
|
1399 | 163c8a59 | Luiz Capitulino | } |
1400 | 163c8a59 | Luiz Capitulino | |
1401 | 79627472 | Luiz Capitulino | static PciDeviceInfoList *qmp_query_pci_devices(PCIBus *bus, int bus_num) |
1402 | 384d8876 | bellard | { |
1403 | 79627472 | Luiz Capitulino | PciDeviceInfoList *info, *head = NULL, *cur_item = NULL; |
1404 | 163c8a59 | Luiz Capitulino | PCIDevice *dev; |
1405 | 79627472 | Luiz Capitulino | int devfn;
|
1406 | 163c8a59 | Luiz Capitulino | |
1407 | 163c8a59 | Luiz Capitulino | for (devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { |
1408 | 163c8a59 | Luiz Capitulino | dev = bus->devices[devfn]; |
1409 | 163c8a59 | Luiz Capitulino | if (dev) {
|
1410 | 79627472 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1411 | 79627472 | Luiz Capitulino | info->value = qmp_query_pci_device(dev, bus, bus_num); |
1412 | 79627472 | Luiz Capitulino | |
1413 | 79627472 | Luiz Capitulino | /* XXX: waiting for the qapi to support GSList */
|
1414 | 79627472 | Luiz Capitulino | if (!cur_item) {
|
1415 | 79627472 | Luiz Capitulino | head = cur_item = info; |
1416 | 79627472 | Luiz Capitulino | } else {
|
1417 | 79627472 | Luiz Capitulino | cur_item->next = info; |
1418 | 79627472 | Luiz Capitulino | cur_item = info; |
1419 | 79627472 | Luiz Capitulino | } |
1420 | 163c8a59 | Luiz Capitulino | } |
1421 | 1074df4f | Isaku Yamahata | } |
1422 | 163c8a59 | Luiz Capitulino | |
1423 | 79627472 | Luiz Capitulino | return head;
|
1424 | 1074df4f | Isaku Yamahata | } |
1425 | 1074df4f | Isaku Yamahata | |
1426 | 79627472 | Luiz Capitulino | static PciInfo *qmp_query_pci_bus(PCIBus *bus, int bus_num) |
1427 | 1074df4f | Isaku Yamahata | { |
1428 | 79627472 | Luiz Capitulino | PciInfo *info = NULL;
|
1429 | 79627472 | Luiz Capitulino | |
1430 | d662210a | Michael S. Tsirkin | bus = pci_find_bus_nr(bus, bus_num); |
1431 | 502a5395 | pbrook | if (bus) {
|
1432 | 79627472 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1433 | 79627472 | Luiz Capitulino | info->bus = bus_num; |
1434 | 79627472 | Luiz Capitulino | info->devices = qmp_query_pci_devices(bus, bus_num); |
1435 | f2aa58c6 | bellard | } |
1436 | 163c8a59 | Luiz Capitulino | |
1437 | 79627472 | Luiz Capitulino | return info;
|
1438 | f2aa58c6 | bellard | } |
1439 | f2aa58c6 | bellard | |
1440 | 79627472 | Luiz Capitulino | PciInfoList *qmp_query_pci(Error **errp) |
1441 | f2aa58c6 | bellard | { |
1442 | 79627472 | Luiz Capitulino | PciInfoList *info, *head = NULL, *cur_item = NULL; |
1443 | e822a52a | Isaku Yamahata | struct PCIHostBus *host;
|
1444 | 163c8a59 | Luiz Capitulino | |
1445 | e822a52a | Isaku Yamahata | QLIST_FOREACH(host, &host_buses, next) { |
1446 | 79627472 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1447 | 79627472 | Luiz Capitulino | info->value = qmp_query_pci_bus(host->bus, 0);
|
1448 | 79627472 | Luiz Capitulino | |
1449 | 79627472 | Luiz Capitulino | /* XXX: waiting for the qapi to support GSList */
|
1450 | 79627472 | Luiz Capitulino | if (!cur_item) {
|
1451 | 79627472 | Luiz Capitulino | head = cur_item = info; |
1452 | 79627472 | Luiz Capitulino | } else {
|
1453 | 79627472 | Luiz Capitulino | cur_item->next = info; |
1454 | 79627472 | Luiz Capitulino | cur_item = info; |
1455 | 163c8a59 | Luiz Capitulino | } |
1456 | e822a52a | Isaku Yamahata | } |
1457 | 163c8a59 | Luiz Capitulino | |
1458 | 79627472 | Luiz Capitulino | return head;
|
1459 | 77d4bc34 | bellard | } |
1460 | a41b2ff2 | pbrook | |
1461 | cb457d76 | aliguori | static const char * const pci_nic_models[] = { |
1462 | cb457d76 | aliguori | "ne2k_pci",
|
1463 | cb457d76 | aliguori | "i82551",
|
1464 | cb457d76 | aliguori | "i82557b",
|
1465 | cb457d76 | aliguori | "i82559er",
|
1466 | cb457d76 | aliguori | "rtl8139",
|
1467 | cb457d76 | aliguori | "e1000",
|
1468 | cb457d76 | aliguori | "pcnet",
|
1469 | cb457d76 | aliguori | "virtio",
|
1470 | cb457d76 | aliguori | NULL
|
1471 | cb457d76 | aliguori | }; |
1472 | cb457d76 | aliguori | |
1473 | 9d07d757 | Paul Brook | static const char * const pci_nic_names[] = { |
1474 | 9d07d757 | Paul Brook | "ne2k_pci",
|
1475 | 9d07d757 | Paul Brook | "i82551",
|
1476 | 9d07d757 | Paul Brook | "i82557b",
|
1477 | 9d07d757 | Paul Brook | "i82559er",
|
1478 | 9d07d757 | Paul Brook | "rtl8139",
|
1479 | 9d07d757 | Paul Brook | "e1000",
|
1480 | 9d07d757 | Paul Brook | "pcnet",
|
1481 | 53c25cea | Paul Brook | "virtio-net-pci",
|
1482 | cb457d76 | aliguori | NULL
|
1483 | cb457d76 | aliguori | }; |
1484 | cb457d76 | aliguori | |
1485 | a41b2ff2 | pbrook | /* Initialize a PCI NIC. */
|
1486 | 33e66b86 | Markus Armbruster | /* FIXME callers should check for failure, but don't */
|
1487 | 5607c388 | Markus Armbruster | PCIDevice *pci_nic_init(NICInfo *nd, const char *default_model, |
1488 | 5607c388 | Markus Armbruster | const char *default_devaddr) |
1489 | a41b2ff2 | pbrook | { |
1490 | 5607c388 | Markus Armbruster | const char *devaddr = nd->devaddr ? nd->devaddr : default_devaddr; |
1491 | 07caea31 | Markus Armbruster | PCIBus *bus; |
1492 | 07caea31 | Markus Armbruster | int devfn;
|
1493 | 5607c388 | Markus Armbruster | PCIDevice *pci_dev; |
1494 | 9d07d757 | Paul Brook | DeviceState *dev; |
1495 | cb457d76 | aliguori | int i;
|
1496 | cb457d76 | aliguori | |
1497 | 07caea31 | Markus Armbruster | i = qemu_find_nic_model(nd, pci_nic_models, default_model); |
1498 | 07caea31 | Markus Armbruster | if (i < 0) |
1499 | 07caea31 | Markus Armbruster | return NULL; |
1500 | 07caea31 | Markus Armbruster | |
1501 | 07caea31 | Markus Armbruster | bus = pci_get_bus_devfn(&devfn, devaddr); |
1502 | 07caea31 | Markus Armbruster | if (!bus) {
|
1503 | 1ecda02b | Markus Armbruster | error_report("Invalid PCI device address %s for device %s",
|
1504 | 1ecda02b | Markus Armbruster | devaddr, pci_nic_names[i]); |
1505 | 07caea31 | Markus Armbruster | return NULL; |
1506 | 07caea31 | Markus Armbruster | } |
1507 | 07caea31 | Markus Armbruster | |
1508 | 499cf102 | Markus Armbruster | pci_dev = pci_create(bus, devfn, pci_nic_names[i]); |
1509 | 9ee05825 | Markus Armbruster | dev = &pci_dev->qdev; |
1510 | 1cc33683 | Gerd Hoffmann | qdev_set_nic_properties(dev, nd); |
1511 | 07caea31 | Markus Armbruster | if (qdev_init(dev) < 0) |
1512 | 07caea31 | Markus Armbruster | return NULL; |
1513 | 9ee05825 | Markus Armbruster | return pci_dev;
|
1514 | a41b2ff2 | pbrook | } |
1515 | a41b2ff2 | pbrook | |
1516 | 07caea31 | Markus Armbruster | PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model, |
1517 | 07caea31 | Markus Armbruster | const char *default_devaddr) |
1518 | 07caea31 | Markus Armbruster | { |
1519 | 07caea31 | Markus Armbruster | PCIDevice *res; |
1520 | 07caea31 | Markus Armbruster | |
1521 | 07caea31 | Markus Armbruster | if (qemu_show_nic_models(nd->model, pci_nic_models))
|
1522 | 07caea31 | Markus Armbruster | exit(0);
|
1523 | 07caea31 | Markus Armbruster | |
1524 | 07caea31 | Markus Armbruster | res = pci_nic_init(nd, default_model, default_devaddr); |
1525 | 07caea31 | Markus Armbruster | if (!res)
|
1526 | 07caea31 | Markus Armbruster | exit(1);
|
1527 | 07caea31 | Markus Armbruster | return res;
|
1528 | 07caea31 | Markus Armbruster | } |
1529 | 07caea31 | Markus Armbruster | |
1530 | 129d42fb | Aurelien Jarno | PCIDevice *pci_vga_init(PCIBus *bus) |
1531 | 129d42fb | Aurelien Jarno | { |
1532 | 129d42fb | Aurelien Jarno | switch (vga_interface_type) {
|
1533 | 129d42fb | Aurelien Jarno | case VGA_CIRRUS:
|
1534 | 129d42fb | Aurelien Jarno | return pci_create_simple(bus, -1, "cirrus-vga"); |
1535 | 129d42fb | Aurelien Jarno | case VGA_QXL:
|
1536 | 129d42fb | Aurelien Jarno | return pci_create_simple(bus, -1, "qxl-vga"); |
1537 | 129d42fb | Aurelien Jarno | case VGA_STD:
|
1538 | 129d42fb | Aurelien Jarno | return pci_create_simple(bus, -1, "VGA"); |
1539 | 129d42fb | Aurelien Jarno | case VGA_VMWARE:
|
1540 | 129d42fb | Aurelien Jarno | return pci_create_simple(bus, -1, "vmware-svga"); |
1541 | 129d42fb | Aurelien Jarno | case VGA_NONE:
|
1542 | 129d42fb | Aurelien Jarno | default: /* Other non-PCI types. Checking for unsupported types is already |
1543 | 129d42fb | Aurelien Jarno | done in vl.c. */
|
1544 | 129d42fb | Aurelien Jarno | return NULL; |
1545 | 129d42fb | Aurelien Jarno | } |
1546 | 129d42fb | Aurelien Jarno | } |
1547 | 129d42fb | Aurelien Jarno | |
1548 | 929176c3 | Michael S. Tsirkin | /* Whether a given bus number is in range of the secondary
|
1549 | 929176c3 | Michael S. Tsirkin | * bus of the given bridge device. */
|
1550 | 929176c3 | Michael S. Tsirkin | static bool pci_secondary_bus_in_range(PCIDevice *dev, int bus_num) |
1551 | 929176c3 | Michael S. Tsirkin | { |
1552 | 929176c3 | Michael S. Tsirkin | return !(pci_get_word(dev->config + PCI_BRIDGE_CONTROL) &
|
1553 | 929176c3 | Michael S. Tsirkin | PCI_BRIDGE_CTL_BUS_RESET) /* Don't walk the bus if it's reset. */ &&
|
1554 | 929176c3 | Michael S. Tsirkin | dev->config[PCI_SECONDARY_BUS] < bus_num && |
1555 | 929176c3 | Michael S. Tsirkin | bus_num <= dev->config[PCI_SUBORDINATE_BUS]; |
1556 | 929176c3 | Michael S. Tsirkin | } |
1557 | 929176c3 | Michael S. Tsirkin | |
1558 | d662210a | Michael S. Tsirkin | static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num) |
1559 | 3ae80618 | aliguori | { |
1560 | 470e6363 | Isaku Yamahata | PCIBus *sec; |
1561 | 3ae80618 | aliguori | |
1562 | 470e6363 | Isaku Yamahata | if (!bus) {
|
1563 | e822a52a | Isaku Yamahata | return NULL; |
1564 | 470e6363 | Isaku Yamahata | } |
1565 | 3ae80618 | aliguori | |
1566 | e822a52a | Isaku Yamahata | if (pci_bus_num(bus) == bus_num) {
|
1567 | e822a52a | Isaku Yamahata | return bus;
|
1568 | e822a52a | Isaku Yamahata | } |
1569 | e822a52a | Isaku Yamahata | |
1570 | 929176c3 | Michael S. Tsirkin | /* Consider all bus numbers in range for the host pci bridge. */
|
1571 | 929176c3 | Michael S. Tsirkin | if (bus->parent_dev &&
|
1572 | 929176c3 | Michael S. Tsirkin | !pci_secondary_bus_in_range(bus->parent_dev, bus_num)) { |
1573 | 929176c3 | Michael S. Tsirkin | return NULL; |
1574 | 929176c3 | Michael S. Tsirkin | } |
1575 | 929176c3 | Michael S. Tsirkin | |
1576 | e822a52a | Isaku Yamahata | /* try child bus */
|
1577 | 929176c3 | Michael S. Tsirkin | for (; bus; bus = sec) {
|
1578 | 929176c3 | Michael S. Tsirkin | QLIST_FOREACH(sec, &bus->child, sibling) { |
1579 | 929176c3 | Michael S. Tsirkin | assert(sec->parent_dev); |
1580 | 929176c3 | Michael S. Tsirkin | if (sec->parent_dev->config[PCI_SECONDARY_BUS] == bus_num) {
|
1581 | 929176c3 | Michael S. Tsirkin | return sec;
|
1582 | 929176c3 | Michael S. Tsirkin | } |
1583 | 929176c3 | Michael S. Tsirkin | if (pci_secondary_bus_in_range(sec->parent_dev, bus_num)) {
|
1584 | 929176c3 | Michael S. Tsirkin | break;
|
1585 | c021f8e6 | Blue Swirl | } |
1586 | e822a52a | Isaku Yamahata | } |
1587 | e822a52a | Isaku Yamahata | } |
1588 | e822a52a | Isaku Yamahata | |
1589 | e822a52a | Isaku Yamahata | return NULL; |
1590 | 3ae80618 | aliguori | } |
1591 | 3ae80618 | aliguori | |
1592 | 5256d8bf | Isaku Yamahata | PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn)
|
1593 | 3ae80618 | aliguori | { |
1594 | d662210a | Michael S. Tsirkin | bus = pci_find_bus_nr(bus, bus_num); |
1595 | 3ae80618 | aliguori | |
1596 | 3ae80618 | aliguori | if (!bus)
|
1597 | 3ae80618 | aliguori | return NULL; |
1598 | 3ae80618 | aliguori | |
1599 | 5256d8bf | Isaku Yamahata | return bus->devices[devfn];
|
1600 | 3ae80618 | aliguori | } |
1601 | 3ae80618 | aliguori | |
1602 | d307af79 | Anthony Liguori | static int pci_qdev_init(DeviceState *qdev) |
1603 | 6b1b92d3 | Paul Brook | { |
1604 | 6b1b92d3 | Paul Brook | PCIDevice *pci_dev = (PCIDevice *)qdev; |
1605 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev); |
1606 | 6b1b92d3 | Paul Brook | PCIBus *bus; |
1607 | 113f89df | Isaku Yamahata | int rc;
|
1608 | ab85ceb1 | Stefan Weil | bool is_default_rom;
|
1609 | 6b1b92d3 | Paul Brook | |
1610 | a9f49946 | Isaku Yamahata | /* initialize cap_present for pci_is_express() and pci_config_size() */
|
1611 | 40021f08 | Anthony Liguori | if (pc->is_express) {
|
1612 | a9f49946 | Isaku Yamahata | pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS; |
1613 | a9f49946 | Isaku Yamahata | } |
1614 | a9f49946 | Isaku Yamahata | |
1615 | 02e2da45 | Paul Brook | bus = FROM_QBUS(PCIBus, qdev_get_parent_bus(qdev)); |
1616 | 6e008585 | Anthony Liguori | pci_dev = do_pci_register_device(pci_dev, bus, |
1617 | 6e008585 | Anthony Liguori | object_get_typename(OBJECT(qdev)), |
1618 | 6e008585 | Anthony Liguori | pci_dev->devfn); |
1619 | 09e3acc6 | Gerd Hoffmann | if (pci_dev == NULL) |
1620 | 09e3acc6 | Gerd Hoffmann | return -1; |
1621 | 40021f08 | Anthony Liguori | if (qdev->hotplugged && pc->no_hotplug) {
|
1622 | f79f2bfc | Anthony Liguori | qerror_report(QERR_DEVICE_NO_HOTPLUG, object_get_typename(OBJECT(pci_dev))); |
1623 | 180c22e1 | Gerd Hoffmann | do_pci_unregister_device(pci_dev); |
1624 | 180c22e1 | Gerd Hoffmann | return -1; |
1625 | 180c22e1 | Gerd Hoffmann | } |
1626 | 40021f08 | Anthony Liguori | if (pc->init) {
|
1627 | 40021f08 | Anthony Liguori | rc = pc->init(pci_dev); |
1628 | c2afc922 | Isaku Yamahata | if (rc != 0) { |
1629 | c2afc922 | Isaku Yamahata | do_pci_unregister_device(pci_dev); |
1630 | c2afc922 | Isaku Yamahata | return rc;
|
1631 | c2afc922 | Isaku Yamahata | } |
1632 | 925fe64a | Alex Williamson | } |
1633 | 8c52c8f3 | Gerd Hoffmann | |
1634 | 8c52c8f3 | Gerd Hoffmann | /* rom loading */
|
1635 | ab85ceb1 | Stefan Weil | is_default_rom = false;
|
1636 | 40021f08 | Anthony Liguori | if (pci_dev->romfile == NULL && pc->romfile != NULL) { |
1637 | 40021f08 | Anthony Liguori | pci_dev->romfile = g_strdup(pc->romfile); |
1638 | ab85ceb1 | Stefan Weil | is_default_rom = true;
|
1639 | ab85ceb1 | Stefan Weil | } |
1640 | ab85ceb1 | Stefan Weil | pci_add_option_rom(pci_dev, is_default_rom); |
1641 | 8c52c8f3 | Gerd Hoffmann | |
1642 | 5beb8ad5 | Isaku Yamahata | if (bus->hotplug) {
|
1643 | e927d487 | Michael S. Tsirkin | /* Let buses differentiate between hotplug and when device is
|
1644 | e927d487 | Michael S. Tsirkin | * enabled during qemu machine creation. */
|
1645 | e927d487 | Michael S. Tsirkin | rc = bus->hotplug(bus->hotplug_qdev, pci_dev, |
1646 | e927d487 | Michael S. Tsirkin | qdev->hotplugged ? PCI_HOTPLUG_ENABLED: |
1647 | e927d487 | Michael S. Tsirkin | PCI_COLDPLUG_ENABLED); |
1648 | a213ff63 | Isaku Yamahata | if (rc != 0) { |
1649 | a213ff63 | Isaku Yamahata | int r = pci_unregister_device(&pci_dev->qdev);
|
1650 | a213ff63 | Isaku Yamahata | assert(!r); |
1651 | a213ff63 | Isaku Yamahata | return rc;
|
1652 | a213ff63 | Isaku Yamahata | } |
1653 | a213ff63 | Isaku Yamahata | } |
1654 | ee995ffb | Gerd Hoffmann | return 0; |
1655 | ee995ffb | Gerd Hoffmann | } |
1656 | ee995ffb | Gerd Hoffmann | |
1657 | ee995ffb | Gerd Hoffmann | static int pci_unplug_device(DeviceState *qdev) |
1658 | ee995ffb | Gerd Hoffmann | { |
1659 | 40021f08 | Anthony Liguori | PCIDevice *dev = PCI_DEVICE(qdev); |
1660 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); |
1661 | ee995ffb | Gerd Hoffmann | |
1662 | 40021f08 | Anthony Liguori | if (pc->no_hotplug) {
|
1663 | f79f2bfc | Anthony Liguori | qerror_report(QERR_DEVICE_NO_HOTPLUG, object_get_typename(OBJECT(dev))); |
1664 | 180c22e1 | Gerd Hoffmann | return -1; |
1665 | 180c22e1 | Gerd Hoffmann | } |
1666 | e927d487 | Michael S. Tsirkin | return dev->bus->hotplug(dev->bus->hotplug_qdev, dev,
|
1667 | e927d487 | Michael S. Tsirkin | PCI_HOTPLUG_DISABLED); |
1668 | 6b1b92d3 | Paul Brook | } |
1669 | 6b1b92d3 | Paul Brook | |
1670 | 49823868 | Isaku Yamahata | PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction, |
1671 | 49823868 | Isaku Yamahata | const char *name) |
1672 | 6b1b92d3 | Paul Brook | { |
1673 | 6b1b92d3 | Paul Brook | DeviceState *dev; |
1674 | 6b1b92d3 | Paul Brook | |
1675 | 02e2da45 | Paul Brook | dev = qdev_create(&bus->qbus, name); |
1676 | 09f1bbcd | Michael Roth | qdev_prop_set_int32(dev, "addr", devfn);
|
1677 | 49823868 | Isaku Yamahata | qdev_prop_set_bit(dev, "multifunction", multifunction);
|
1678 | 40021f08 | Anthony Liguori | return PCI_DEVICE(dev);
|
1679 | 71077c1c | Gerd Hoffmann | } |
1680 | 6b1b92d3 | Paul Brook | |
1681 | 49823868 | Isaku Yamahata | PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn,
|
1682 | 49823868 | Isaku Yamahata | bool multifunction,
|
1683 | 49823868 | Isaku Yamahata | const char *name) |
1684 | 71077c1c | Gerd Hoffmann | { |
1685 | 49823868 | Isaku Yamahata | PCIDevice *dev = pci_create_multifunction(bus, devfn, multifunction, name); |
1686 | e23a1b33 | Markus Armbruster | qdev_init_nofail(&dev->qdev); |
1687 | 71077c1c | Gerd Hoffmann | return dev;
|
1688 | 6b1b92d3 | Paul Brook | } |
1689 | 6f4cbd39 | Michael S. Tsirkin | |
1690 | 49823868 | Isaku Yamahata | PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name) |
1691 | 49823868 | Isaku Yamahata | { |
1692 | 49823868 | Isaku Yamahata | return pci_create_multifunction(bus, devfn, false, name); |
1693 | 49823868 | Isaku Yamahata | } |
1694 | 49823868 | Isaku Yamahata | |
1695 | 49823868 | Isaku Yamahata | PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name) |
1696 | 49823868 | Isaku Yamahata | { |
1697 | 49823868 | Isaku Yamahata | return pci_create_simple_multifunction(bus, devfn, false, name); |
1698 | 49823868 | Isaku Yamahata | } |
1699 | 49823868 | Isaku Yamahata | |
1700 | b56d701f | Isaku Yamahata | static uint8_t pci_find_space(PCIDevice *pdev, uint8_t size)
|
1701 | 6f4cbd39 | Michael S. Tsirkin | { |
1702 | 6f4cbd39 | Michael S. Tsirkin | int offset = PCI_CONFIG_HEADER_SIZE;
|
1703 | 6f4cbd39 | Michael S. Tsirkin | int i;
|
1704 | b56d701f | Isaku Yamahata | for (i = PCI_CONFIG_HEADER_SIZE; i < PCI_CONFIG_SPACE_SIZE; ++i) {
|
1705 | 6f4cbd39 | Michael S. Tsirkin | if (pdev->used[i])
|
1706 | 6f4cbd39 | Michael S. Tsirkin | offset = i + 1;
|
1707 | 6f4cbd39 | Michael S. Tsirkin | else if (i - offset + 1 == size) |
1708 | 6f4cbd39 | Michael S. Tsirkin | return offset;
|
1709 | b56d701f | Isaku Yamahata | } |
1710 | 6f4cbd39 | Michael S. Tsirkin | return 0; |
1711 | 6f4cbd39 | Michael S. Tsirkin | } |
1712 | 6f4cbd39 | Michael S. Tsirkin | |
1713 | 6f4cbd39 | Michael S. Tsirkin | static uint8_t pci_find_capability_list(PCIDevice *pdev, uint8_t cap_id,
|
1714 | 6f4cbd39 | Michael S. Tsirkin | uint8_t *prev_p) |
1715 | 6f4cbd39 | Michael S. Tsirkin | { |
1716 | 6f4cbd39 | Michael S. Tsirkin | uint8_t next, prev; |
1717 | 6f4cbd39 | Michael S. Tsirkin | |
1718 | 6f4cbd39 | Michael S. Tsirkin | if (!(pdev->config[PCI_STATUS] & PCI_STATUS_CAP_LIST))
|
1719 | 6f4cbd39 | Michael S. Tsirkin | return 0; |
1720 | 6f4cbd39 | Michael S. Tsirkin | |
1721 | 6f4cbd39 | Michael S. Tsirkin | for (prev = PCI_CAPABILITY_LIST; (next = pdev->config[prev]);
|
1722 | 6f4cbd39 | Michael S. Tsirkin | prev = next + PCI_CAP_LIST_NEXT) |
1723 | 6f4cbd39 | Michael S. Tsirkin | if (pdev->config[next + PCI_CAP_LIST_ID] == cap_id)
|
1724 | 6f4cbd39 | Michael S. Tsirkin | break;
|
1725 | 6f4cbd39 | Michael S. Tsirkin | |
1726 | 6f4cbd39 | Michael S. Tsirkin | if (prev_p)
|
1727 | 6f4cbd39 | Michael S. Tsirkin | *prev_p = prev; |
1728 | 6f4cbd39 | Michael S. Tsirkin | return next;
|
1729 | 6f4cbd39 | Michael S. Tsirkin | } |
1730 | 6f4cbd39 | Michael S. Tsirkin | |
1731 | c9abe111 | Jan Kiszka | static uint8_t pci_find_capability_at_offset(PCIDevice *pdev, uint8_t offset)
|
1732 | c9abe111 | Jan Kiszka | { |
1733 | c9abe111 | Jan Kiszka | uint8_t next, prev, found = 0;
|
1734 | c9abe111 | Jan Kiszka | |
1735 | c9abe111 | Jan Kiszka | if (!(pdev->used[offset])) {
|
1736 | c9abe111 | Jan Kiszka | return 0; |
1737 | c9abe111 | Jan Kiszka | } |
1738 | c9abe111 | Jan Kiszka | |
1739 | c9abe111 | Jan Kiszka | assert(pdev->config[PCI_STATUS] & PCI_STATUS_CAP_LIST); |
1740 | c9abe111 | Jan Kiszka | |
1741 | c9abe111 | Jan Kiszka | for (prev = PCI_CAPABILITY_LIST; (next = pdev->config[prev]);
|
1742 | c9abe111 | Jan Kiszka | prev = next + PCI_CAP_LIST_NEXT) { |
1743 | c9abe111 | Jan Kiszka | if (next <= offset && next > found) {
|
1744 | c9abe111 | Jan Kiszka | found = next; |
1745 | c9abe111 | Jan Kiszka | } |
1746 | c9abe111 | Jan Kiszka | } |
1747 | c9abe111 | Jan Kiszka | return found;
|
1748 | c9abe111 | Jan Kiszka | } |
1749 | c9abe111 | Jan Kiszka | |
1750 | ab85ceb1 | Stefan Weil | /* Patch the PCI vendor and device ids in a PCI rom image if necessary.
|
1751 | ab85ceb1 | Stefan Weil | This is needed for an option rom which is used for more than one device. */
|
1752 | ab85ceb1 | Stefan Weil | static void pci_patch_ids(PCIDevice *pdev, uint8_t *ptr, int size) |
1753 | ab85ceb1 | Stefan Weil | { |
1754 | ab85ceb1 | Stefan Weil | uint16_t vendor_id; |
1755 | ab85ceb1 | Stefan Weil | uint16_t device_id; |
1756 | ab85ceb1 | Stefan Weil | uint16_t rom_vendor_id; |
1757 | ab85ceb1 | Stefan Weil | uint16_t rom_device_id; |
1758 | ab85ceb1 | Stefan Weil | uint16_t rom_magic; |
1759 | ab85ceb1 | Stefan Weil | uint16_t pcir_offset; |
1760 | ab85ceb1 | Stefan Weil | uint8_t checksum; |
1761 | ab85ceb1 | Stefan Weil | |
1762 | ab85ceb1 | Stefan Weil | /* Words in rom data are little endian (like in PCI configuration),
|
1763 | ab85ceb1 | Stefan Weil | so they can be read / written with pci_get_word / pci_set_word. */
|
1764 | ab85ceb1 | Stefan Weil | |
1765 | ab85ceb1 | Stefan Weil | /* Only a valid rom will be patched. */
|
1766 | ab85ceb1 | Stefan Weil | rom_magic = pci_get_word(ptr); |
1767 | ab85ceb1 | Stefan Weil | if (rom_magic != 0xaa55) { |
1768 | ab85ceb1 | Stefan Weil | PCI_DPRINTF("Bad ROM magic %04x\n", rom_magic);
|
1769 | ab85ceb1 | Stefan Weil | return;
|
1770 | ab85ceb1 | Stefan Weil | } |
1771 | ab85ceb1 | Stefan Weil | pcir_offset = pci_get_word(ptr + 0x18);
|
1772 | ab85ceb1 | Stefan Weil | if (pcir_offset + 8 >= size || memcmp(ptr + pcir_offset, "PCIR", 4)) { |
1773 | ab85ceb1 | Stefan Weil | PCI_DPRINTF("Bad PCIR offset 0x%x or signature\n", pcir_offset);
|
1774 | ab85ceb1 | Stefan Weil | return;
|
1775 | ab85ceb1 | Stefan Weil | } |
1776 | ab85ceb1 | Stefan Weil | |
1777 | ab85ceb1 | Stefan Weil | vendor_id = pci_get_word(pdev->config + PCI_VENDOR_ID); |
1778 | ab85ceb1 | Stefan Weil | device_id = pci_get_word(pdev->config + PCI_DEVICE_ID); |
1779 | ab85ceb1 | Stefan Weil | rom_vendor_id = pci_get_word(ptr + pcir_offset + 4);
|
1780 | ab85ceb1 | Stefan Weil | rom_device_id = pci_get_word(ptr + pcir_offset + 6);
|
1781 | ab85ceb1 | Stefan Weil | |
1782 | ab85ceb1 | Stefan Weil | PCI_DPRINTF("%s: ROM id %04x%04x / PCI id %04x%04x\n", pdev->romfile,
|
1783 | ab85ceb1 | Stefan Weil | vendor_id, device_id, rom_vendor_id, rom_device_id); |
1784 | ab85ceb1 | Stefan Weil | |
1785 | ab85ceb1 | Stefan Weil | checksum = ptr[6];
|
1786 | ab85ceb1 | Stefan Weil | |
1787 | ab85ceb1 | Stefan Weil | if (vendor_id != rom_vendor_id) {
|
1788 | ab85ceb1 | Stefan Weil | /* Patch vendor id and checksum (at offset 6 for etherboot roms). */
|
1789 | ab85ceb1 | Stefan Weil | checksum += (uint8_t)rom_vendor_id + (uint8_t)(rom_vendor_id >> 8);
|
1790 | ab85ceb1 | Stefan Weil | checksum -= (uint8_t)vendor_id + (uint8_t)(vendor_id >> 8);
|
1791 | ab85ceb1 | Stefan Weil | PCI_DPRINTF("ROM checksum %02x / %02x\n", ptr[6], checksum); |
1792 | ab85ceb1 | Stefan Weil | ptr[6] = checksum;
|
1793 | ab85ceb1 | Stefan Weil | pci_set_word(ptr + pcir_offset + 4, vendor_id);
|
1794 | ab85ceb1 | Stefan Weil | } |
1795 | ab85ceb1 | Stefan Weil | |
1796 | ab85ceb1 | Stefan Weil | if (device_id != rom_device_id) {
|
1797 | ab85ceb1 | Stefan Weil | /* Patch device id and checksum (at offset 6 for etherboot roms). */
|
1798 | ab85ceb1 | Stefan Weil | checksum += (uint8_t)rom_device_id + (uint8_t)(rom_device_id >> 8);
|
1799 | ab85ceb1 | Stefan Weil | checksum -= (uint8_t)device_id + (uint8_t)(device_id >> 8);
|
1800 | ab85ceb1 | Stefan Weil | PCI_DPRINTF("ROM checksum %02x / %02x\n", ptr[6], checksum); |
1801 | ab85ceb1 | Stefan Weil | ptr[6] = checksum;
|
1802 | ab85ceb1 | Stefan Weil | pci_set_word(ptr + pcir_offset + 6, device_id);
|
1803 | ab85ceb1 | Stefan Weil | } |
1804 | ab85ceb1 | Stefan Weil | } |
1805 | ab85ceb1 | Stefan Weil | |
1806 | c2039bd0 | Anthony Liguori | /* Add an option rom for the device */
|
1807 | ab85ceb1 | Stefan Weil | static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom) |
1808 | c2039bd0 | Anthony Liguori | { |
1809 | c2039bd0 | Anthony Liguori | int size;
|
1810 | c2039bd0 | Anthony Liguori | char *path;
|
1811 | c2039bd0 | Anthony Liguori | void *ptr;
|
1812 | 1724f049 | Alex Williamson | char name[32]; |
1813 | 4be9f0d1 | Anthony Liguori | const VMStateDescription *vmsd;
|
1814 | c2039bd0 | Anthony Liguori | |
1815 | 8c52c8f3 | Gerd Hoffmann | if (!pdev->romfile)
|
1816 | 8c52c8f3 | Gerd Hoffmann | return 0; |
1817 | 8c52c8f3 | Gerd Hoffmann | if (strlen(pdev->romfile) == 0) |
1818 | 8c52c8f3 | Gerd Hoffmann | return 0; |
1819 | 8c52c8f3 | Gerd Hoffmann | |
1820 | 88169ddf | Gerd Hoffmann | if (!pdev->rom_bar) {
|
1821 | 88169ddf | Gerd Hoffmann | /*
|
1822 | 88169ddf | Gerd Hoffmann | * Load rom via fw_cfg instead of creating a rom bar,
|
1823 | 88169ddf | Gerd Hoffmann | * for 0.11 compatibility.
|
1824 | 88169ddf | Gerd Hoffmann | */
|
1825 | 88169ddf | Gerd Hoffmann | int class = pci_get_word(pdev->config + PCI_CLASS_DEVICE);
|
1826 | 88169ddf | Gerd Hoffmann | if (class == 0x0300) { |
1827 | 88169ddf | Gerd Hoffmann | rom_add_vga(pdev->romfile); |
1828 | 88169ddf | Gerd Hoffmann | } else {
|
1829 | 2e55e842 | Gleb Natapov | rom_add_option(pdev->romfile, -1);
|
1830 | 88169ddf | Gerd Hoffmann | } |
1831 | 88169ddf | Gerd Hoffmann | return 0; |
1832 | 88169ddf | Gerd Hoffmann | } |
1833 | 88169ddf | Gerd Hoffmann | |
1834 | 8c52c8f3 | Gerd Hoffmann | path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile); |
1835 | c2039bd0 | Anthony Liguori | if (path == NULL) { |
1836 | 7267c094 | Anthony Liguori | path = g_strdup(pdev->romfile); |
1837 | c2039bd0 | Anthony Liguori | } |
1838 | c2039bd0 | Anthony Liguori | |
1839 | c2039bd0 | Anthony Liguori | size = get_image_size(path); |
1840 | 8c52c8f3 | Gerd Hoffmann | if (size < 0) { |
1841 | 1ecda02b | Markus Armbruster | error_report("%s: failed to find romfile \"%s\"",
|
1842 | 1ecda02b | Markus Armbruster | __FUNCTION__, pdev->romfile); |
1843 | 7267c094 | Anthony Liguori | g_free(path); |
1844 | 8c52c8f3 | Gerd Hoffmann | return -1; |
1845 | 8c52c8f3 | Gerd Hoffmann | } |
1846 | c2039bd0 | Anthony Liguori | if (size & (size - 1)) { |
1847 | c2039bd0 | Anthony Liguori | size = 1 << qemu_fls(size);
|
1848 | c2039bd0 | Anthony Liguori | } |
1849 | c2039bd0 | Anthony Liguori | |
1850 | 4be9f0d1 | Anthony Liguori | vmsd = qdev_get_vmsd(DEVICE(pdev)); |
1851 | 4be9f0d1 | Anthony Liguori | |
1852 | 4be9f0d1 | Anthony Liguori | if (vmsd) {
|
1853 | 4be9f0d1 | Anthony Liguori | snprintf(name, sizeof(name), "%s.rom", vmsd->name); |
1854 | 4be9f0d1 | Anthony Liguori | } else {
|
1855 | f79f2bfc | Anthony Liguori | snprintf(name, sizeof(name), "%s.rom", object_get_typename(OBJECT(pdev))); |
1856 | 4be9f0d1 | Anthony Liguori | } |
1857 | 14caaf7f | Avi Kivity | pdev->has_rom = true;
|
1858 | c5705a77 | Avi Kivity | memory_region_init_ram(&pdev->rom, name, size); |
1859 | c5705a77 | Avi Kivity | vmstate_register_ram(&pdev->rom, &pdev->qdev); |
1860 | 14caaf7f | Avi Kivity | ptr = memory_region_get_ram_ptr(&pdev->rom); |
1861 | c2039bd0 | Anthony Liguori | load_image(path, ptr); |
1862 | 7267c094 | Anthony Liguori | g_free(path); |
1863 | c2039bd0 | Anthony Liguori | |
1864 | ab85ceb1 | Stefan Weil | if (is_default_rom) {
|
1865 | ab85ceb1 | Stefan Weil | /* Only the default rom images will be patched (if needed). */
|
1866 | ab85ceb1 | Stefan Weil | pci_patch_ids(pdev, ptr, size); |
1867 | ab85ceb1 | Stefan Weil | } |
1868 | ab85ceb1 | Stefan Weil | |
1869 | 8c12f191 | John Baboval | qemu_put_ram_ptr(ptr); |
1870 | 8c12f191 | John Baboval | |
1871 | e824b2cc | Avi Kivity | pci_register_bar(pdev, PCI_ROM_SLOT, 0, &pdev->rom);
|
1872 | c2039bd0 | Anthony Liguori | |
1873 | c2039bd0 | Anthony Liguori | return 0; |
1874 | c2039bd0 | Anthony Liguori | } |
1875 | c2039bd0 | Anthony Liguori | |
1876 | 230741dc | Alex Williamson | static void pci_del_option_rom(PCIDevice *pdev) |
1877 | 230741dc | Alex Williamson | { |
1878 | 14caaf7f | Avi Kivity | if (!pdev->has_rom)
|
1879 | 230741dc | Alex Williamson | return;
|
1880 | 230741dc | Alex Williamson | |
1881 | c5705a77 | Avi Kivity | vmstate_unregister_ram(&pdev->rom, &pdev->qdev); |
1882 | 14caaf7f | Avi Kivity | memory_region_destroy(&pdev->rom); |
1883 | 14caaf7f | Avi Kivity | pdev->has_rom = false;
|
1884 | 230741dc | Alex Williamson | } |
1885 | 230741dc | Alex Williamson | |
1886 | ca77089d | Isaku Yamahata | /*
|
1887 | ca77089d | Isaku Yamahata | * if !offset
|
1888 | ca77089d | Isaku Yamahata | * Reserve space and add capability to the linked list in pci config space
|
1889 | ca77089d | Isaku Yamahata | *
|
1890 | ca77089d | Isaku Yamahata | * if offset = 0,
|
1891 | ca77089d | Isaku Yamahata | * Find and reserve space and add capability to the linked list
|
1892 | ca77089d | Isaku Yamahata | * in pci config space */
|
1893 | ca77089d | Isaku Yamahata | int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
|
1894 | ca77089d | Isaku Yamahata | uint8_t offset, uint8_t size) |
1895 | 6f4cbd39 | Michael S. Tsirkin | { |
1896 | ca77089d | Isaku Yamahata | uint8_t *config; |
1897 | c9abe111 | Jan Kiszka | int i, overlapping_cap;
|
1898 | c9abe111 | Jan Kiszka | |
1899 | ca77089d | Isaku Yamahata | if (!offset) {
|
1900 | ca77089d | Isaku Yamahata | offset = pci_find_space(pdev, size); |
1901 | ca77089d | Isaku Yamahata | if (!offset) {
|
1902 | ca77089d | Isaku Yamahata | return -ENOSPC;
|
1903 | ca77089d | Isaku Yamahata | } |
1904 | c9abe111 | Jan Kiszka | } else {
|
1905 | c9abe111 | Jan Kiszka | /* Verify that capabilities don't overlap. Note: device assignment
|
1906 | c9abe111 | Jan Kiszka | * depends on this check to verify that the device is not broken.
|
1907 | c9abe111 | Jan Kiszka | * Should never trigger for emulated devices, but it's helpful
|
1908 | c9abe111 | Jan Kiszka | * for debugging these. */
|
1909 | c9abe111 | Jan Kiszka | for (i = offset; i < offset + size; i++) {
|
1910 | c9abe111 | Jan Kiszka | overlapping_cap = pci_find_capability_at_offset(pdev, i); |
1911 | c9abe111 | Jan Kiszka | if (overlapping_cap) {
|
1912 | c9abe111 | Jan Kiszka | fprintf(stderr, "ERROR: %04x:%02x:%02x.%x "
|
1913 | c9abe111 | Jan Kiszka | "Attempt to add PCI capability %x at offset "
|
1914 | c9abe111 | Jan Kiszka | "%x overlaps existing capability %x at offset %x\n",
|
1915 | c9abe111 | Jan Kiszka | pci_find_domain(pdev->bus), pci_bus_num(pdev->bus), |
1916 | c9abe111 | Jan Kiszka | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), |
1917 | c9abe111 | Jan Kiszka | cap_id, offset, overlapping_cap, i); |
1918 | c9abe111 | Jan Kiszka | return -EINVAL;
|
1919 | c9abe111 | Jan Kiszka | } |
1920 | c9abe111 | Jan Kiszka | } |
1921 | ca77089d | Isaku Yamahata | } |
1922 | ca77089d | Isaku Yamahata | |
1923 | ca77089d | Isaku Yamahata | config = pdev->config + offset; |
1924 | 6f4cbd39 | Michael S. Tsirkin | config[PCI_CAP_LIST_ID] = cap_id; |
1925 | 6f4cbd39 | Michael S. Tsirkin | config[PCI_CAP_LIST_NEXT] = pdev->config[PCI_CAPABILITY_LIST]; |
1926 | 6f4cbd39 | Michael S. Tsirkin | pdev->config[PCI_CAPABILITY_LIST] = offset; |
1927 | 6f4cbd39 | Michael S. Tsirkin | pdev->config[PCI_STATUS] |= PCI_STATUS_CAP_LIST; |
1928 | e26631b7 | Michael S. Tsirkin | memset(pdev->used + offset, 0xFF, QEMU_ALIGN_UP(size, 4)); |
1929 | 6f4cbd39 | Michael S. Tsirkin | /* Make capability read-only by default */
|
1930 | 6f4cbd39 | Michael S. Tsirkin | memset(pdev->wmask + offset, 0, size);
|
1931 | bd4b65ee | Michael S. Tsirkin | /* Check capability by default */
|
1932 | bd4b65ee | Michael S. Tsirkin | memset(pdev->cmask + offset, 0xFF, size);
|
1933 | 6f4cbd39 | Michael S. Tsirkin | return offset;
|
1934 | 6f4cbd39 | Michael S. Tsirkin | } |
1935 | 6f4cbd39 | Michael S. Tsirkin | |
1936 | 6f4cbd39 | Michael S. Tsirkin | /* Unlink capability from the pci config space. */
|
1937 | 6f4cbd39 | Michael S. Tsirkin | void pci_del_capability(PCIDevice *pdev, uint8_t cap_id, uint8_t size)
|
1938 | 6f4cbd39 | Michael S. Tsirkin | { |
1939 | 6f4cbd39 | Michael S. Tsirkin | uint8_t prev, offset = pci_find_capability_list(pdev, cap_id, &prev); |
1940 | 6f4cbd39 | Michael S. Tsirkin | if (!offset)
|
1941 | 6f4cbd39 | Michael S. Tsirkin | return;
|
1942 | 6f4cbd39 | Michael S. Tsirkin | pdev->config[prev] = pdev->config[offset + PCI_CAP_LIST_NEXT]; |
1943 | ebabb67a | Stefan Weil | /* Make capability writable again */
|
1944 | 6f4cbd39 | Michael S. Tsirkin | memset(pdev->wmask + offset, 0xff, size);
|
1945 | 1a4f5971 | Isaku Yamahata | memset(pdev->w1cmask + offset, 0, size);
|
1946 | bd4b65ee | Michael S. Tsirkin | /* Clear cmask as device-specific registers can't be checked */
|
1947 | bd4b65ee | Michael S. Tsirkin | memset(pdev->cmask + offset, 0, size);
|
1948 | e26631b7 | Michael S. Tsirkin | memset(pdev->used + offset, 0, QEMU_ALIGN_UP(size, 4)); |
1949 | 6f4cbd39 | Michael S. Tsirkin | |
1950 | 6f4cbd39 | Michael S. Tsirkin | if (!pdev->config[PCI_CAPABILITY_LIST])
|
1951 | 6f4cbd39 | Michael S. Tsirkin | pdev->config[PCI_STATUS] &= ~PCI_STATUS_CAP_LIST; |
1952 | 6f4cbd39 | Michael S. Tsirkin | } |
1953 | 6f4cbd39 | Michael S. Tsirkin | |
1954 | 6f4cbd39 | Michael S. Tsirkin | uint8_t pci_find_capability(PCIDevice *pdev, uint8_t cap_id) |
1955 | 6f4cbd39 | Michael S. Tsirkin | { |
1956 | 6f4cbd39 | Michael S. Tsirkin | return pci_find_capability_list(pdev, cap_id, NULL); |
1957 | 6f4cbd39 | Michael S. Tsirkin | } |
1958 | 10c4c98a | Gerd Hoffmann | |
1959 | 10c4c98a | Gerd Hoffmann | static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent) |
1960 | 10c4c98a | Gerd Hoffmann | { |
1961 | 10c4c98a | Gerd Hoffmann | PCIDevice *d = (PCIDevice *)dev; |
1962 | 10c4c98a | Gerd Hoffmann | const pci_class_desc *desc;
|
1963 | 10c4c98a | Gerd Hoffmann | char ctxt[64]; |
1964 | 10c4c98a | Gerd Hoffmann | PCIIORegion *r; |
1965 | 10c4c98a | Gerd Hoffmann | int i, class;
|
1966 | 10c4c98a | Gerd Hoffmann | |
1967 | b0ff8eb2 | Isaku Yamahata | class = pci_get_word(d->config + PCI_CLASS_DEVICE); |
1968 | 10c4c98a | Gerd Hoffmann | desc = pci_class_descriptions; |
1969 | 10c4c98a | Gerd Hoffmann | while (desc->desc && class != desc->class)
|
1970 | 10c4c98a | Gerd Hoffmann | desc++; |
1971 | 10c4c98a | Gerd Hoffmann | if (desc->desc) {
|
1972 | 10c4c98a | Gerd Hoffmann | snprintf(ctxt, sizeof(ctxt), "%s", desc->desc); |
1973 | 10c4c98a | Gerd Hoffmann | } else {
|
1974 | 10c4c98a | Gerd Hoffmann | snprintf(ctxt, sizeof(ctxt), "Class %04x", class); |
1975 | 10c4c98a | Gerd Hoffmann | } |
1976 | 10c4c98a | Gerd Hoffmann | |
1977 | 10c4c98a | Gerd Hoffmann | monitor_printf(mon, "%*sclass %s, addr %02x:%02x.%x, "
|
1978 | 10c4c98a | Gerd Hoffmann | "pci id %04x:%04x (sub %04x:%04x)\n",
|
1979 | 7f5feab4 | Alex Williamson | indent, "", ctxt, pci_bus_num(d->bus),
|
1980 | e822a52a | Isaku Yamahata | PCI_SLOT(d->devfn), PCI_FUNC(d->devfn), |
1981 | b0ff8eb2 | Isaku Yamahata | pci_get_word(d->config + PCI_VENDOR_ID), |
1982 | b0ff8eb2 | Isaku Yamahata | pci_get_word(d->config + PCI_DEVICE_ID), |
1983 | b0ff8eb2 | Isaku Yamahata | pci_get_word(d->config + PCI_SUBSYSTEM_VENDOR_ID), |
1984 | b0ff8eb2 | Isaku Yamahata | pci_get_word(d->config + PCI_SUBSYSTEM_ID)); |
1985 | 10c4c98a | Gerd Hoffmann | for (i = 0; i < PCI_NUM_REGIONS; i++) { |
1986 | 10c4c98a | Gerd Hoffmann | r = &d->io_regions[i]; |
1987 | 10c4c98a | Gerd Hoffmann | if (!r->size)
|
1988 | 10c4c98a | Gerd Hoffmann | continue;
|
1989 | 89e8b13c | Isaku Yamahata | monitor_printf(mon, "%*sbar %d: %s at 0x%"FMT_PCIBUS
|
1990 | 89e8b13c | Isaku Yamahata | " [0x%"FMT_PCIBUS"]\n", |
1991 | 89e8b13c | Isaku Yamahata | indent, "",
|
1992 | 0392a017 | Isaku Yamahata | i, r->type & PCI_BASE_ADDRESS_SPACE_IO ? "i/o" : "mem", |
1993 | 10c4c98a | Gerd Hoffmann | r->addr, r->addr + r->size - 1);
|
1994 | 10c4c98a | Gerd Hoffmann | } |
1995 | 10c4c98a | Gerd Hoffmann | } |
1996 | 03587182 | Gerd Hoffmann | |
1997 | 5e0259e7 | Gleb Natapov | static char *pci_dev_fw_name(DeviceState *dev, char *buf, int len) |
1998 | 5e0259e7 | Gleb Natapov | { |
1999 | 5e0259e7 | Gleb Natapov | PCIDevice *d = (PCIDevice *)dev; |
2000 | 5e0259e7 | Gleb Natapov | const char *name = NULL; |
2001 | 5e0259e7 | Gleb Natapov | const pci_class_desc *desc = pci_class_descriptions;
|
2002 | 5e0259e7 | Gleb Natapov | int class = pci_get_word(d->config + PCI_CLASS_DEVICE);
|
2003 | 5e0259e7 | Gleb Natapov | |
2004 | 5e0259e7 | Gleb Natapov | while (desc->desc &&
|
2005 | 5e0259e7 | Gleb Natapov | (class & ~desc->fw_ign_bits) != |
2006 | 5e0259e7 | Gleb Natapov | (desc->class & ~desc->fw_ign_bits)) { |
2007 | 5e0259e7 | Gleb Natapov | desc++; |
2008 | 5e0259e7 | Gleb Natapov | } |
2009 | 5e0259e7 | Gleb Natapov | |
2010 | 5e0259e7 | Gleb Natapov | if (desc->desc) {
|
2011 | 5e0259e7 | Gleb Natapov | name = desc->fw_name; |
2012 | 5e0259e7 | Gleb Natapov | } |
2013 | 5e0259e7 | Gleb Natapov | |
2014 | 5e0259e7 | Gleb Natapov | if (name) {
|
2015 | 5e0259e7 | Gleb Natapov | pstrcpy(buf, len, name); |
2016 | 5e0259e7 | Gleb Natapov | } else {
|
2017 | 5e0259e7 | Gleb Natapov | snprintf(buf, len, "pci%04x,%04x",
|
2018 | 5e0259e7 | Gleb Natapov | pci_get_word(d->config + PCI_VENDOR_ID), |
2019 | 5e0259e7 | Gleb Natapov | pci_get_word(d->config + PCI_DEVICE_ID)); |
2020 | 5e0259e7 | Gleb Natapov | } |
2021 | 5e0259e7 | Gleb Natapov | |
2022 | 5e0259e7 | Gleb Natapov | return buf;
|
2023 | 5e0259e7 | Gleb Natapov | } |
2024 | 5e0259e7 | Gleb Natapov | |
2025 | 5e0259e7 | Gleb Natapov | static char *pcibus_get_fw_dev_path(DeviceState *dev) |
2026 | 5e0259e7 | Gleb Natapov | { |
2027 | 5e0259e7 | Gleb Natapov | PCIDevice *d = (PCIDevice *)dev; |
2028 | 5e0259e7 | Gleb Natapov | char path[50], name[33]; |
2029 | 5e0259e7 | Gleb Natapov | int off;
|
2030 | 5e0259e7 | Gleb Natapov | |
2031 | 5e0259e7 | Gleb Natapov | off = snprintf(path, sizeof(path), "%s@%x", |
2032 | 5e0259e7 | Gleb Natapov | pci_dev_fw_name(dev, name, sizeof name),
|
2033 | 5e0259e7 | Gleb Natapov | PCI_SLOT(d->devfn)); |
2034 | 5e0259e7 | Gleb Natapov | if (PCI_FUNC(d->devfn))
|
2035 | 5e0259e7 | Gleb Natapov | snprintf(path + off, sizeof(path) + off, ",%x", PCI_FUNC(d->devfn)); |
2036 | a5cf8262 | Jim Meyering | return g_strdup(path);
|
2037 | 5e0259e7 | Gleb Natapov | } |
2038 | 5e0259e7 | Gleb Natapov | |
2039 | 4f43c1ff | Alex Williamson | static char *pcibus_get_dev_path(DeviceState *dev) |
2040 | 4f43c1ff | Alex Williamson | { |
2041 | a6a7005d | Michael S. Tsirkin | PCIDevice *d = container_of(dev, PCIDevice, qdev); |
2042 | a6a7005d | Michael S. Tsirkin | PCIDevice *t; |
2043 | a6a7005d | Michael S. Tsirkin | int slot_depth;
|
2044 | a6a7005d | Michael S. Tsirkin | /* Path format: Domain:00:Slot.Function:Slot.Function....:Slot.Function.
|
2045 | a6a7005d | Michael S. Tsirkin | * 00 is added here to make this format compatible with
|
2046 | a6a7005d | Michael S. Tsirkin | * domain:Bus:Slot.Func for systems without nested PCI bridges.
|
2047 | a6a7005d | Michael S. Tsirkin | * Slot.Function list specifies the slot and function numbers for all
|
2048 | a6a7005d | Michael S. Tsirkin | * devices on the path from root to the specific device. */
|
2049 | 2991181a | Michael S. Tsirkin | char domain[] = "DDDD:00"; |
2050 | 2991181a | Michael S. Tsirkin | char slot[] = ":SS.F"; |
2051 | 2991181a | Michael S. Tsirkin | int domain_len = sizeof domain - 1 /* For '\0' */; |
2052 | 2991181a | Michael S. Tsirkin | int slot_len = sizeof slot - 1 /* For '\0' */; |
2053 | a6a7005d | Michael S. Tsirkin | int path_len;
|
2054 | a6a7005d | Michael S. Tsirkin | char *path, *p;
|
2055 | 2991181a | Michael S. Tsirkin | int s;
|
2056 | a6a7005d | Michael S. Tsirkin | |
2057 | a6a7005d | Michael S. Tsirkin | /* Calculate # of slots on path between device and root. */;
|
2058 | a6a7005d | Michael S. Tsirkin | slot_depth = 0;
|
2059 | a6a7005d | Michael S. Tsirkin | for (t = d; t; t = t->bus->parent_dev) {
|
2060 | a6a7005d | Michael S. Tsirkin | ++slot_depth; |
2061 | a6a7005d | Michael S. Tsirkin | } |
2062 | a6a7005d | Michael S. Tsirkin | |
2063 | a6a7005d | Michael S. Tsirkin | path_len = domain_len + slot_len * slot_depth; |
2064 | a6a7005d | Michael S. Tsirkin | |
2065 | a6a7005d | Michael S. Tsirkin | /* Allocate memory, fill in the terminating null byte. */
|
2066 | 7267c094 | Anthony Liguori | path = g_malloc(path_len + 1 /* For '\0' */); |
2067 | a6a7005d | Michael S. Tsirkin | path[path_len] = '\0';
|
2068 | a6a7005d | Michael S. Tsirkin | |
2069 | a6a7005d | Michael S. Tsirkin | /* First field is the domain. */
|
2070 | 2991181a | Michael S. Tsirkin | s = snprintf(domain, sizeof domain, "%04x:00", pci_find_domain(d->bus)); |
2071 | 2991181a | Michael S. Tsirkin | assert(s == domain_len); |
2072 | 2991181a | Michael S. Tsirkin | memcpy(path, domain, domain_len); |
2073 | a6a7005d | Michael S. Tsirkin | |
2074 | a6a7005d | Michael S. Tsirkin | /* Fill in slot numbers. We walk up from device to root, so need to print
|
2075 | a6a7005d | Michael S. Tsirkin | * them in the reverse order, last to first. */
|
2076 | a6a7005d | Michael S. Tsirkin | p = path + path_len; |
2077 | a6a7005d | Michael S. Tsirkin | for (t = d; t; t = t->bus->parent_dev) {
|
2078 | a6a7005d | Michael S. Tsirkin | p -= slot_len; |
2079 | 2991181a | Michael S. Tsirkin | s = snprintf(slot, sizeof slot, ":%02x.%x", |
2080 | 4c900518 | Isaku Yamahata | PCI_SLOT(t->devfn), PCI_FUNC(t->devfn)); |
2081 | 2991181a | Michael S. Tsirkin | assert(s == slot_len); |
2082 | 2991181a | Michael S. Tsirkin | memcpy(p, slot, slot_len); |
2083 | a6a7005d | Michael S. Tsirkin | } |
2084 | a6a7005d | Michael S. Tsirkin | |
2085 | a6a7005d | Michael S. Tsirkin | return path;
|
2086 | 4f43c1ff | Alex Williamson | } |
2087 | 4f43c1ff | Alex Williamson | |
2088 | f3006dd1 | Isaku Yamahata | static int pci_qdev_find_recursive(PCIBus *bus, |
2089 | f3006dd1 | Isaku Yamahata | const char *id, PCIDevice **pdev) |
2090 | f3006dd1 | Isaku Yamahata | { |
2091 | f3006dd1 | Isaku Yamahata | DeviceState *qdev = qdev_find_recursive(&bus->qbus, id); |
2092 | f3006dd1 | Isaku Yamahata | if (!qdev) {
|
2093 | f3006dd1 | Isaku Yamahata | return -ENODEV;
|
2094 | f3006dd1 | Isaku Yamahata | } |
2095 | f3006dd1 | Isaku Yamahata | |
2096 | f3006dd1 | Isaku Yamahata | /* roughly check if given qdev is pci device */
|
2097 | 4be9f0d1 | Anthony Liguori | if (object_dynamic_cast(OBJECT(qdev), TYPE_PCI_DEVICE)) {
|
2098 | 40021f08 | Anthony Liguori | *pdev = PCI_DEVICE(qdev); |
2099 | f3006dd1 | Isaku Yamahata | return 0; |
2100 | f3006dd1 | Isaku Yamahata | } |
2101 | f3006dd1 | Isaku Yamahata | return -EINVAL;
|
2102 | f3006dd1 | Isaku Yamahata | } |
2103 | f3006dd1 | Isaku Yamahata | |
2104 | f3006dd1 | Isaku Yamahata | int pci_qdev_find_device(const char *id, PCIDevice **pdev) |
2105 | f3006dd1 | Isaku Yamahata | { |
2106 | f3006dd1 | Isaku Yamahata | struct PCIHostBus *host;
|
2107 | f3006dd1 | Isaku Yamahata | int rc = -ENODEV;
|
2108 | f3006dd1 | Isaku Yamahata | |
2109 | f3006dd1 | Isaku Yamahata | QLIST_FOREACH(host, &host_buses, next) { |
2110 | f3006dd1 | Isaku Yamahata | int tmp = pci_qdev_find_recursive(host->bus, id, pdev);
|
2111 | f3006dd1 | Isaku Yamahata | if (!tmp) {
|
2112 | f3006dd1 | Isaku Yamahata | rc = 0;
|
2113 | f3006dd1 | Isaku Yamahata | break;
|
2114 | f3006dd1 | Isaku Yamahata | } |
2115 | f3006dd1 | Isaku Yamahata | if (tmp != -ENODEV) {
|
2116 | f3006dd1 | Isaku Yamahata | rc = tmp; |
2117 | f3006dd1 | Isaku Yamahata | } |
2118 | f3006dd1 | Isaku Yamahata | } |
2119 | f3006dd1 | Isaku Yamahata | |
2120 | f3006dd1 | Isaku Yamahata | return rc;
|
2121 | f3006dd1 | Isaku Yamahata | } |
2122 | f5e6fed8 | Avi Kivity | |
2123 | f5e6fed8 | Avi Kivity | MemoryRegion *pci_address_space(PCIDevice *dev) |
2124 | f5e6fed8 | Avi Kivity | { |
2125 | f5e6fed8 | Avi Kivity | return dev->bus->address_space_mem;
|
2126 | f5e6fed8 | Avi Kivity | } |
2127 | e11d6439 | Richard Henderson | |
2128 | e11d6439 | Richard Henderson | MemoryRegion *pci_address_space_io(PCIDevice *dev) |
2129 | e11d6439 | Richard Henderson | { |
2130 | e11d6439 | Richard Henderson | return dev->bus->address_space_io;
|
2131 | e11d6439 | Richard Henderson | } |
2132 | 40021f08 | Anthony Liguori | |
2133 | 39bffca2 | Anthony Liguori | static void pci_device_class_init(ObjectClass *klass, void *data) |
2134 | 39bffca2 | Anthony Liguori | { |
2135 | 39bffca2 | Anthony Liguori | DeviceClass *k = DEVICE_CLASS(klass); |
2136 | 39bffca2 | Anthony Liguori | k->init = pci_qdev_init; |
2137 | 39bffca2 | Anthony Liguori | k->unplug = pci_unplug_device; |
2138 | 39bffca2 | Anthony Liguori | k->exit = pci_unregister_device; |
2139 | 0d936928 | Anthony Liguori | k->bus_type = TYPE_PCI_BUS; |
2140 | bce54474 | Paolo Bonzini | k->props = pci_props; |
2141 | 39bffca2 | Anthony Liguori | } |
2142 | 39bffca2 | Anthony Liguori | |
2143 | 5fa45de5 | David Gibson | void pci_setup_iommu(PCIBus *bus, PCIDMAContextFunc fn, void *opaque) |
2144 | 5fa45de5 | David Gibson | { |
2145 | 5fa45de5 | David Gibson | bus->dma_context_fn = fn; |
2146 | 5fa45de5 | David Gibson | bus->dma_context_opaque = opaque; |
2147 | 5fa45de5 | David Gibson | } |
2148 | 5fa45de5 | David Gibson | |
2149 | 40021f08 | Anthony Liguori | static TypeInfo pci_device_type_info = {
|
2150 | 40021f08 | Anthony Liguori | .name = TYPE_PCI_DEVICE, |
2151 | 40021f08 | Anthony Liguori | .parent = TYPE_DEVICE, |
2152 | 40021f08 | Anthony Liguori | .instance_size = sizeof(PCIDevice),
|
2153 | 40021f08 | Anthony Liguori | .abstract = true,
|
2154 | 40021f08 | Anthony Liguori | .class_size = sizeof(PCIDeviceClass),
|
2155 | 39bffca2 | Anthony Liguori | .class_init = pci_device_class_init, |
2156 | 40021f08 | Anthony Liguori | }; |
2157 | 40021f08 | Anthony Liguori | |
2158 | 83f7d43a | Andreas Färber | static void pci_register_types(void) |
2159 | 40021f08 | Anthony Liguori | { |
2160 | 0d936928 | Anthony Liguori | type_register_static(&pci_bus_info); |
2161 | 40021f08 | Anthony Liguori | type_register_static(&pci_device_type_info); |
2162 | 40021f08 | Anthony Liguori | } |
2163 | 40021f08 | Anthony Liguori | |
2164 | 83f7d43a | Andreas Färber | type_init(pci_register_types) |