root / hw / xen_platform.c @ 0d09e41a
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1 | 01195b73 | Steven Smith | /*
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2 | 01195b73 | Steven Smith | * XEN platform pci device, formerly known as the event channel device
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3 | 01195b73 | Steven Smith | *
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4 | 01195b73 | Steven Smith | * Copyright (c) 2003-2004 Intel Corp.
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5 | 01195b73 | Steven Smith | * Copyright (c) 2006 XenSource
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6 | 01195b73 | Steven Smith | *
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7 | 01195b73 | Steven Smith | * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 | 01195b73 | Steven Smith | * of this software and associated documentation files (the "Software"), to deal
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9 | 01195b73 | Steven Smith | * in the Software without restriction, including without limitation the rights
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10 | 01195b73 | Steven Smith | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 | 01195b73 | Steven Smith | * copies of the Software, and to permit persons to whom the Software is
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12 | 01195b73 | Steven Smith | * furnished to do so, subject to the following conditions:
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13 | 01195b73 | Steven Smith | *
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14 | 01195b73 | Steven Smith | * The above copyright notice and this permission notice shall be included in
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15 | 01195b73 | Steven Smith | * all copies or substantial portions of the Software.
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16 | 01195b73 | Steven Smith | *
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17 | 01195b73 | Steven Smith | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 | 01195b73 | Steven Smith | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 | 01195b73 | Steven Smith | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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20 | 01195b73 | Steven Smith | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 | 01195b73 | Steven Smith | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 | 01195b73 | Steven Smith | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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23 | 01195b73 | Steven Smith | * THE SOFTWARE.
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24 | 01195b73 | Steven Smith | */
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25 | 01195b73 | Steven Smith | |
26 | 01195b73 | Steven Smith | #include <assert.h> |
27 | 01195b73 | Steven Smith | |
28 | 83c9f4ca | Paolo Bonzini | #include "hw/hw.h" |
29 | 0d09e41a | Paolo Bonzini | #include "hw/i386/pc.h" |
30 | 83c9f4ca | Paolo Bonzini | #include "hw/pci/pci.h" |
31 | 83c9f4ca | Paolo Bonzini | #include "hw/irq.h" |
32 | 0d09e41a | Paolo Bonzini | #include "hw/xen/xen_common.h" |
33 | 0d09e41a | Paolo Bonzini | #include "hw/xen/xen_backend.h" |
34 | 01195b73 | Steven Smith | #include "trace.h" |
35 | 022c62cb | Paolo Bonzini | #include "exec/address-spaces.h" |
36 | 01195b73 | Steven Smith | |
37 | 01195b73 | Steven Smith | #include <xenguest.h> |
38 | 01195b73 | Steven Smith | |
39 | 01195b73 | Steven Smith | //#define DEBUG_PLATFORM
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40 | 01195b73 | Steven Smith | |
41 | 01195b73 | Steven Smith | #ifdef DEBUG_PLATFORM
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42 | 01195b73 | Steven Smith | #define DPRINTF(fmt, ...) do { \ |
43 | 01195b73 | Steven Smith | fprintf(stderr, "xen_platform: " fmt, ## __VA_ARGS__); \ |
44 | 01195b73 | Steven Smith | } while (0) |
45 | 01195b73 | Steven Smith | #else
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46 | 01195b73 | Steven Smith | #define DPRINTF(fmt, ...) do { } while (0) |
47 | 01195b73 | Steven Smith | #endif
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48 | 01195b73 | Steven Smith | |
49 | 01195b73 | Steven Smith | #define PFFLAG_ROM_LOCK 1 /* Sets whether ROM memory area is RW or RO */ |
50 | 01195b73 | Steven Smith | |
51 | 01195b73 | Steven Smith | typedef struct PCIXenPlatformState { |
52 | 01195b73 | Steven Smith | PCIDevice pci_dev; |
53 | de00982e | Avi Kivity | MemoryRegion fixed_io; |
54 | de00982e | Avi Kivity | MemoryRegion bar; |
55 | de00982e | Avi Kivity | MemoryRegion mmio_bar; |
56 | 01195b73 | Steven Smith | uint8_t flags; /* used only for version_id == 2 */
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57 | 01195b73 | Steven Smith | int drivers_blacklisted;
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58 | 01195b73 | Steven Smith | uint16_t driver_product_version; |
59 | 01195b73 | Steven Smith | |
60 | 01195b73 | Steven Smith | /* Log from guest drivers */
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61 | 01195b73 | Steven Smith | char log_buffer[4096]; |
62 | 01195b73 | Steven Smith | int log_buffer_off;
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63 | 01195b73 | Steven Smith | } PCIXenPlatformState; |
64 | 01195b73 | Steven Smith | |
65 | 01195b73 | Steven Smith | #define XEN_PLATFORM_IOPORT 0x10 |
66 | 01195b73 | Steven Smith | |
67 | 01195b73 | Steven Smith | /* Send bytes to syslog */
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68 | 01195b73 | Steven Smith | static void log_writeb(PCIXenPlatformState *s, char val) |
69 | 01195b73 | Steven Smith | { |
70 | 01195b73 | Steven Smith | if (val == '\n' || s->log_buffer_off == sizeof(s->log_buffer) - 1) { |
71 | 01195b73 | Steven Smith | /* Flush buffer */
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72 | 01195b73 | Steven Smith | s->log_buffer[s->log_buffer_off] = 0;
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73 | 01195b73 | Steven Smith | trace_xen_platform_log(s->log_buffer); |
74 | 01195b73 | Steven Smith | s->log_buffer_off = 0;
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75 | 01195b73 | Steven Smith | } else {
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76 | 01195b73 | Steven Smith | s->log_buffer[s->log_buffer_off++] = val; |
77 | 01195b73 | Steven Smith | } |
78 | 01195b73 | Steven Smith | } |
79 | 01195b73 | Steven Smith | |
80 | 01195b73 | Steven Smith | /* Xen Platform, Fixed IOPort */
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81 | 679f4f8b | Stefano Stabellini | #define UNPLUG_ALL_IDE_DISKS 1 |
82 | 679f4f8b | Stefano Stabellini | #define UNPLUG_ALL_NICS 2 |
83 | 679f4f8b | Stefano Stabellini | #define UNPLUG_AUX_IDE_DISKS 4 |
84 | 679f4f8b | Stefano Stabellini | |
85 | 7aa8cbb9 | Anthony PERARD | static void unplug_nic(PCIBus *b, PCIDevice *d, void *o) |
86 | 679f4f8b | Stefano Stabellini | { |
87 | bd4982a6 | Anthony PERARD | /* We have to ignore passthrough devices */
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88 | 679f4f8b | Stefano Stabellini | if (pci_get_word(d->config + PCI_CLASS_DEVICE) ==
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89 | bd4982a6 | Anthony PERARD | PCI_CLASS_NETWORK_ETHERNET |
90 | bd4982a6 | Anthony PERARD | && strcmp(d->name, "xen-pci-passthrough") != 0) { |
91 | 4accd107 | Anthony PERARD | qdev_free(&d->qdev); |
92 | 679f4f8b | Stefano Stabellini | } |
93 | 679f4f8b | Stefano Stabellini | } |
94 | 679f4f8b | Stefano Stabellini | |
95 | 679f4f8b | Stefano Stabellini | static void pci_unplug_nics(PCIBus *bus) |
96 | 679f4f8b | Stefano Stabellini | { |
97 | 7aa8cbb9 | Anthony PERARD | pci_for_each_device(bus, 0, unplug_nic, NULL); |
98 | 679f4f8b | Stefano Stabellini | } |
99 | 679f4f8b | Stefano Stabellini | |
100 | 7aa8cbb9 | Anthony PERARD | static void unplug_disks(PCIBus *b, PCIDevice *d, void *o) |
101 | 679f4f8b | Stefano Stabellini | { |
102 | bd4982a6 | Anthony PERARD | /* We have to ignore passthrough devices */
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103 | 679f4f8b | Stefano Stabellini | if (pci_get_word(d->config + PCI_CLASS_DEVICE) ==
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104 | bd4982a6 | Anthony PERARD | PCI_CLASS_STORAGE_IDE |
105 | bd4982a6 | Anthony PERARD | && strcmp(d->name, "xen-pci-passthrough") != 0) { |
106 | 56f9107e | Luiz Capitulino | qdev_unplug(&(d->qdev), NULL);
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107 | 679f4f8b | Stefano Stabellini | } |
108 | 679f4f8b | Stefano Stabellini | } |
109 | 679f4f8b | Stefano Stabellini | |
110 | 679f4f8b | Stefano Stabellini | static void pci_unplug_disks(PCIBus *bus) |
111 | 679f4f8b | Stefano Stabellini | { |
112 | 7aa8cbb9 | Anthony PERARD | pci_for_each_device(bus, 0, unplug_disks, NULL); |
113 | 679f4f8b | Stefano Stabellini | } |
114 | 01195b73 | Steven Smith | |
115 | 01195b73 | Steven Smith | static void platform_fixed_ioport_writew(void *opaque, uint32_t addr, uint32_t val) |
116 | 01195b73 | Steven Smith | { |
117 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
118 | 01195b73 | Steven Smith | |
119 | e7b48c97 | Anthony PERARD | switch (addr) {
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120 | 01195b73 | Steven Smith | case 0: |
121 | 01195b73 | Steven Smith | /* Unplug devices. Value is a bitmask of which devices to
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122 | 01195b73 | Steven Smith | unplug, with bit 0 the IDE devices, bit 1 the network
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123 | 01195b73 | Steven Smith | devices, and bit 2 the non-primary-master IDE devices. */
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124 | 679f4f8b | Stefano Stabellini | if (val & UNPLUG_ALL_IDE_DISKS) {
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125 | 679f4f8b | Stefano Stabellini | DPRINTF("unplug disks\n");
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126 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
127 | 679f4f8b | Stefano Stabellini | bdrv_flush_all(); |
128 | 679f4f8b | Stefano Stabellini | pci_unplug_disks(s->pci_dev.bus); |
129 | 679f4f8b | Stefano Stabellini | } |
130 | 679f4f8b | Stefano Stabellini | if (val & UNPLUG_ALL_NICS) {
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131 | 679f4f8b | Stefano Stabellini | DPRINTF("unplug nics\n");
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132 | 679f4f8b | Stefano Stabellini | pci_unplug_nics(s->pci_dev.bus); |
133 | 679f4f8b | Stefano Stabellini | } |
134 | 679f4f8b | Stefano Stabellini | if (val & UNPLUG_AUX_IDE_DISKS) {
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135 | 679f4f8b | Stefano Stabellini | DPRINTF("unplug auxiliary disks not supported\n");
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136 | 679f4f8b | Stefano Stabellini | } |
137 | 01195b73 | Steven Smith | break;
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138 | 01195b73 | Steven Smith | case 2: |
139 | 01195b73 | Steven Smith | switch (val) {
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140 | 01195b73 | Steven Smith | case 1: |
141 | 01195b73 | Steven Smith | DPRINTF("Citrix Windows PV drivers loaded in guest\n");
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142 | 01195b73 | Steven Smith | break;
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143 | 01195b73 | Steven Smith | case 0: |
144 | 01195b73 | Steven Smith | DPRINTF("Guest claimed to be running PV product 0?\n");
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145 | 01195b73 | Steven Smith | break;
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146 | 01195b73 | Steven Smith | default:
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147 | 01195b73 | Steven Smith | DPRINTF("Unknown PV product %d loaded in guest\n", val);
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148 | 01195b73 | Steven Smith | break;
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149 | 01195b73 | Steven Smith | } |
150 | 01195b73 | Steven Smith | s->driver_product_version = val; |
151 | 01195b73 | Steven Smith | break;
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152 | 01195b73 | Steven Smith | } |
153 | 01195b73 | Steven Smith | } |
154 | 01195b73 | Steven Smith | |
155 | 01195b73 | Steven Smith | static void platform_fixed_ioport_writel(void *opaque, uint32_t addr, |
156 | 01195b73 | Steven Smith | uint32_t val) |
157 | 01195b73 | Steven Smith | { |
158 | e7b48c97 | Anthony PERARD | switch (addr) {
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159 | 01195b73 | Steven Smith | case 0: |
160 | 01195b73 | Steven Smith | /* PV driver version */
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161 | 01195b73 | Steven Smith | break;
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162 | 01195b73 | Steven Smith | } |
163 | 01195b73 | Steven Smith | } |
164 | 01195b73 | Steven Smith | |
165 | 01195b73 | Steven Smith | static void platform_fixed_ioport_writeb(void *opaque, uint32_t addr, uint32_t val) |
166 | 01195b73 | Steven Smith | { |
167 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
168 | 01195b73 | Steven Smith | |
169 | e7b48c97 | Anthony PERARD | switch (addr) {
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170 | 01195b73 | Steven Smith | case 0: /* Platform flags */ { |
171 | 01195b73 | Steven Smith | hvmmem_type_t mem_type = (val & PFFLAG_ROM_LOCK) ? |
172 | 01195b73 | Steven Smith | HVMMEM_ram_ro : HVMMEM_ram_rw; |
173 | 01195b73 | Steven Smith | if (xc_hvm_set_mem_type(xen_xc, xen_domid, mem_type, 0xc0, 0x40)) { |
174 | 01195b73 | Steven Smith | DPRINTF("unable to change ro/rw state of ROM memory area!\n");
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175 | 01195b73 | Steven Smith | } else {
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176 | 01195b73 | Steven Smith | s->flags = val & PFFLAG_ROM_LOCK; |
177 | 01195b73 | Steven Smith | DPRINTF("changed ro/rw state of ROM memory area. now is %s state.\n",
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178 | 01195b73 | Steven Smith | (mem_type == HVMMEM_ram_ro ? "ro":"rw")); |
179 | 01195b73 | Steven Smith | } |
180 | 01195b73 | Steven Smith | break;
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181 | 01195b73 | Steven Smith | } |
182 | 01195b73 | Steven Smith | case 2: |
183 | 01195b73 | Steven Smith | log_writeb(s, val); |
184 | 01195b73 | Steven Smith | break;
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185 | 01195b73 | Steven Smith | } |
186 | 01195b73 | Steven Smith | } |
187 | 01195b73 | Steven Smith | |
188 | 01195b73 | Steven Smith | static uint32_t platform_fixed_ioport_readw(void *opaque, uint32_t addr) |
189 | 01195b73 | Steven Smith | { |
190 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
191 | 01195b73 | Steven Smith | |
192 | e7b48c97 | Anthony PERARD | switch (addr) {
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193 | 01195b73 | Steven Smith | case 0: |
194 | 01195b73 | Steven Smith | if (s->drivers_blacklisted) {
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195 | 01195b73 | Steven Smith | /* The drivers will recognise this magic number and refuse
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196 | 01195b73 | Steven Smith | * to do anything. */
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197 | 01195b73 | Steven Smith | return 0xd249; |
198 | 01195b73 | Steven Smith | } else {
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199 | 01195b73 | Steven Smith | /* Magic value so that you can identify the interface. */
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200 | 01195b73 | Steven Smith | return 0x49d2; |
201 | 01195b73 | Steven Smith | } |
202 | 01195b73 | Steven Smith | default:
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203 | 01195b73 | Steven Smith | return 0xffff; |
204 | 01195b73 | Steven Smith | } |
205 | 01195b73 | Steven Smith | } |
206 | 01195b73 | Steven Smith | |
207 | 01195b73 | Steven Smith | static uint32_t platform_fixed_ioport_readb(void *opaque, uint32_t addr) |
208 | 01195b73 | Steven Smith | { |
209 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
210 | 01195b73 | Steven Smith | |
211 | e7b48c97 | Anthony PERARD | switch (addr) {
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212 | 01195b73 | Steven Smith | case 0: |
213 | 01195b73 | Steven Smith | /* Platform flags */
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214 | 01195b73 | Steven Smith | return s->flags;
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215 | 01195b73 | Steven Smith | case 2: |
216 | 01195b73 | Steven Smith | /* Version number */
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217 | 01195b73 | Steven Smith | return 1; |
218 | 01195b73 | Steven Smith | default:
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219 | 01195b73 | Steven Smith | return 0xff; |
220 | 01195b73 | Steven Smith | } |
221 | 01195b73 | Steven Smith | } |
222 | 01195b73 | Steven Smith | |
223 | 01195b73 | Steven Smith | static void platform_fixed_ioport_reset(void *opaque) |
224 | 01195b73 | Steven Smith | { |
225 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
226 | 01195b73 | Steven Smith | |
227 | e7b48c97 | Anthony PERARD | platform_fixed_ioport_writeb(s, 0, 0); |
228 | 01195b73 | Steven Smith | } |
229 | 01195b73 | Steven Smith | |
230 | 626c7a17 | Alexander Graf | static uint64_t platform_fixed_ioport_read(void *opaque, |
231 | 626c7a17 | Alexander Graf | hwaddr addr, |
232 | 626c7a17 | Alexander Graf | unsigned size)
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233 | 626c7a17 | Alexander Graf | { |
234 | 626c7a17 | Alexander Graf | switch (size) {
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235 | 626c7a17 | Alexander Graf | case 1: |
236 | 626c7a17 | Alexander Graf | return platform_fixed_ioport_readb(opaque, addr);
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237 | 626c7a17 | Alexander Graf | case 2: |
238 | 626c7a17 | Alexander Graf | return platform_fixed_ioport_readw(opaque, addr);
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239 | 626c7a17 | Alexander Graf | default:
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240 | 626c7a17 | Alexander Graf | return -1; |
241 | 626c7a17 | Alexander Graf | } |
242 | 626c7a17 | Alexander Graf | } |
243 | 626c7a17 | Alexander Graf | |
244 | 626c7a17 | Alexander Graf | static void platform_fixed_ioport_write(void *opaque, hwaddr addr, |
245 | 626c7a17 | Alexander Graf | |
246 | 626c7a17 | Alexander Graf | uint64_t val, unsigned size)
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247 | 626c7a17 | Alexander Graf | { |
248 | 626c7a17 | Alexander Graf | switch (size) {
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249 | 626c7a17 | Alexander Graf | case 1: |
250 | 626c7a17 | Alexander Graf | platform_fixed_ioport_writeb(opaque, addr, val); |
251 | 626c7a17 | Alexander Graf | break;
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252 | 626c7a17 | Alexander Graf | case 2: |
253 | 626c7a17 | Alexander Graf | platform_fixed_ioport_writew(opaque, addr, val); |
254 | 626c7a17 | Alexander Graf | break;
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255 | 626c7a17 | Alexander Graf | case 4: |
256 | 626c7a17 | Alexander Graf | platform_fixed_ioport_writel(opaque, addr, val); |
257 | 626c7a17 | Alexander Graf | break;
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258 | 626c7a17 | Alexander Graf | } |
259 | 626c7a17 | Alexander Graf | } |
260 | 626c7a17 | Alexander Graf | |
261 | de00982e | Avi Kivity | |
262 | de00982e | Avi Kivity | static const MemoryRegionOps platform_fixed_io_ops = { |
263 | 626c7a17 | Alexander Graf | .read = platform_fixed_ioport_read, |
264 | 626c7a17 | Alexander Graf | .write = platform_fixed_ioport_write, |
265 | 626c7a17 | Alexander Graf | .impl = { |
266 | 626c7a17 | Alexander Graf | .min_access_size = 1,
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267 | 626c7a17 | Alexander Graf | .max_access_size = 4,
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268 | 626c7a17 | Alexander Graf | }, |
269 | 626c7a17 | Alexander Graf | .endianness = DEVICE_LITTLE_ENDIAN, |
270 | de00982e | Avi Kivity | }; |
271 | de00982e | Avi Kivity | |
272 | 01195b73 | Steven Smith | static void platform_fixed_ioport_init(PCIXenPlatformState* s) |
273 | 01195b73 | Steven Smith | { |
274 | de00982e | Avi Kivity | memory_region_init_io(&s->fixed_io, &platform_fixed_io_ops, s, |
275 | de00982e | Avi Kivity | "xen-fixed", 16); |
276 | de00982e | Avi Kivity | memory_region_add_subregion(get_system_io(), XEN_PLATFORM_IOPORT, |
277 | de00982e | Avi Kivity | &s->fixed_io); |
278 | 01195b73 | Steven Smith | } |
279 | 01195b73 | Steven Smith | |
280 | 01195b73 | Steven Smith | /* Xen Platform PCI Device */
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281 | 01195b73 | Steven Smith | |
282 | 7a652efa | Hervé Poussineau | static uint64_t xen_platform_ioport_readb(void *opaque, hwaddr addr, |
283 | 7a652efa | Hervé Poussineau | unsigned int size) |
284 | 01195b73 | Steven Smith | { |
285 | 01195b73 | Steven Smith | if (addr == 0) { |
286 | e7b48c97 | Anthony PERARD | return platform_fixed_ioport_readb(opaque, 0); |
287 | 01195b73 | Steven Smith | } else {
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288 | 01195b73 | Steven Smith | return ~0u; |
289 | 01195b73 | Steven Smith | } |
290 | 01195b73 | Steven Smith | } |
291 | 01195b73 | Steven Smith | |
292 | 7a652efa | Hervé Poussineau | static void xen_platform_ioport_writeb(void *opaque, hwaddr addr, |
293 | 7a652efa | Hervé Poussineau | uint64_t val, unsigned int size) |
294 | 01195b73 | Steven Smith | { |
295 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
296 | 01195b73 | Steven Smith | |
297 | 01195b73 | Steven Smith | switch (addr) {
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298 | 01195b73 | Steven Smith | case 0: /* Platform flags */ |
299 | 7a652efa | Hervé Poussineau | platform_fixed_ioport_writeb(opaque, 0, (uint32_t)val);
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300 | 01195b73 | Steven Smith | break;
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301 | 01195b73 | Steven Smith | case 8: |
302 | 7a652efa | Hervé Poussineau | log_writeb(s, (uint32_t)val); |
303 | 01195b73 | Steven Smith | break;
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304 | 01195b73 | Steven Smith | default:
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305 | 01195b73 | Steven Smith | break;
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306 | 01195b73 | Steven Smith | } |
307 | 01195b73 | Steven Smith | } |
308 | 01195b73 | Steven Smith | |
309 | de00982e | Avi Kivity | static const MemoryRegionOps xen_pci_io_ops = { |
310 | 7a652efa | Hervé Poussineau | .read = xen_platform_ioport_readb, |
311 | 7a652efa | Hervé Poussineau | .write = xen_platform_ioport_writeb, |
312 | 7a652efa | Hervé Poussineau | .impl.min_access_size = 1,
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313 | 7a652efa | Hervé Poussineau | .impl.max_access_size = 1,
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314 | de00982e | Avi Kivity | }; |
315 | 01195b73 | Steven Smith | |
316 | de00982e | Avi Kivity | static void platform_ioport_bar_setup(PCIXenPlatformState *d) |
317 | de00982e | Avi Kivity | { |
318 | de00982e | Avi Kivity | memory_region_init_io(&d->bar, &xen_pci_io_ops, d, "xen-pci", 0x100); |
319 | 01195b73 | Steven Smith | } |
320 | 01195b73 | Steven Smith | |
321 | a8170e5e | Avi Kivity | static uint64_t platform_mmio_read(void *opaque, hwaddr addr, |
322 | de00982e | Avi Kivity | unsigned size)
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323 | 01195b73 | Steven Smith | { |
324 | 01195b73 | Steven Smith | DPRINTF("Warning: attempted read from physical address "
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325 | 01195b73 | Steven Smith | "0x" TARGET_FMT_plx " in xen platform mmio space\n", addr); |
326 | 01195b73 | Steven Smith | |
327 | 01195b73 | Steven Smith | return 0; |
328 | 01195b73 | Steven Smith | } |
329 | 01195b73 | Steven Smith | |
330 | a8170e5e | Avi Kivity | static void platform_mmio_write(void *opaque, hwaddr addr, |
331 | de00982e | Avi Kivity | uint64_t val, unsigned size)
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332 | 01195b73 | Steven Smith | { |
333 | de00982e | Avi Kivity | DPRINTF("Warning: attempted write of 0x%"PRIx64" to physical " |
334 | 01195b73 | Steven Smith | "address 0x" TARGET_FMT_plx " in xen platform mmio space\n", |
335 | 01195b73 | Steven Smith | val, addr); |
336 | 01195b73 | Steven Smith | } |
337 | 01195b73 | Steven Smith | |
338 | de00982e | Avi Kivity | static const MemoryRegionOps platform_mmio_handler = { |
339 | 01195b73 | Steven Smith | .read = &platform_mmio_read, |
340 | 01195b73 | Steven Smith | .write = &platform_mmio_write, |
341 | de00982e | Avi Kivity | .endianness = DEVICE_NATIVE_ENDIAN, |
342 | 01195b73 | Steven Smith | }; |
343 | 01195b73 | Steven Smith | |
344 | de00982e | Avi Kivity | static void platform_mmio_setup(PCIXenPlatformState *d) |
345 | 01195b73 | Steven Smith | { |
346 | de00982e | Avi Kivity | memory_region_init_io(&d->mmio_bar, &platform_mmio_handler, d, |
347 | de00982e | Avi Kivity | "xen-mmio", 0x1000000); |
348 | 01195b73 | Steven Smith | } |
349 | 01195b73 | Steven Smith | |
350 | 01195b73 | Steven Smith | static int xen_platform_post_load(void *opaque, int version_id) |
351 | 01195b73 | Steven Smith | { |
352 | 01195b73 | Steven Smith | PCIXenPlatformState *s = opaque; |
353 | 01195b73 | Steven Smith | |
354 | e7b48c97 | Anthony PERARD | platform_fixed_ioport_writeb(s, 0, s->flags);
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355 | 01195b73 | Steven Smith | |
356 | 01195b73 | Steven Smith | return 0; |
357 | 01195b73 | Steven Smith | } |
358 | 01195b73 | Steven Smith | |
359 | 01195b73 | Steven Smith | static const VMStateDescription vmstate_xen_platform = { |
360 | 01195b73 | Steven Smith | .name = "platform",
|
361 | 01195b73 | Steven Smith | .version_id = 4,
|
362 | 01195b73 | Steven Smith | .minimum_version_id = 4,
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363 | 01195b73 | Steven Smith | .minimum_version_id_old = 4,
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364 | 01195b73 | Steven Smith | .post_load = xen_platform_post_load, |
365 | 01195b73 | Steven Smith | .fields = (VMStateField []) { |
366 | 01195b73 | Steven Smith | VMSTATE_PCI_DEVICE(pci_dev, PCIXenPlatformState), |
367 | 01195b73 | Steven Smith | VMSTATE_UINT8(flags, PCIXenPlatformState), |
368 | 01195b73 | Steven Smith | VMSTATE_END_OF_LIST() |
369 | 01195b73 | Steven Smith | } |
370 | 01195b73 | Steven Smith | }; |
371 | 01195b73 | Steven Smith | |
372 | 01195b73 | Steven Smith | static int xen_platform_initfn(PCIDevice *dev) |
373 | 01195b73 | Steven Smith | { |
374 | 01195b73 | Steven Smith | PCIXenPlatformState *d = DO_UPCAST(PCIXenPlatformState, pci_dev, dev); |
375 | 01195b73 | Steven Smith | uint8_t *pci_conf; |
376 | 01195b73 | Steven Smith | |
377 | 01195b73 | Steven Smith | pci_conf = d->pci_dev.config; |
378 | 01195b73 | Steven Smith | |
379 | 01195b73 | Steven Smith | pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY); |
380 | 01195b73 | Steven Smith | |
381 | 01195b73 | Steven Smith | pci_config_set_prog_interface(pci_conf, 0);
|
382 | 01195b73 | Steven Smith | |
383 | 01195b73 | Steven Smith | pci_conf[PCI_INTERRUPT_PIN] = 1;
|
384 | 01195b73 | Steven Smith | |
385 | de00982e | Avi Kivity | platform_ioport_bar_setup(d); |
386 | e824b2cc | Avi Kivity | pci_register_bar(&d->pci_dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &d->bar);
|
387 | 01195b73 | Steven Smith | |
388 | 01195b73 | Steven Smith | /* reserve 16MB mmio address for share memory*/
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389 | de00982e | Avi Kivity | platform_mmio_setup(d); |
390 | e824b2cc | Avi Kivity | pci_register_bar(&d->pci_dev, 1, PCI_BASE_ADDRESS_MEM_PREFETCH,
|
391 | e824b2cc | Avi Kivity | &d->mmio_bar); |
392 | 01195b73 | Steven Smith | |
393 | 01195b73 | Steven Smith | platform_fixed_ioport_init(d); |
394 | 01195b73 | Steven Smith | |
395 | 01195b73 | Steven Smith | return 0; |
396 | 01195b73 | Steven Smith | } |
397 | 01195b73 | Steven Smith | |
398 | 01195b73 | Steven Smith | static void platform_reset(DeviceState *dev) |
399 | 01195b73 | Steven Smith | { |
400 | 01195b73 | Steven Smith | PCIXenPlatformState *s = DO_UPCAST(PCIXenPlatformState, pci_dev.qdev, dev); |
401 | 01195b73 | Steven Smith | |
402 | 01195b73 | Steven Smith | platform_fixed_ioport_reset(s); |
403 | 01195b73 | Steven Smith | } |
404 | 01195b73 | Steven Smith | |
405 | 40021f08 | Anthony Liguori | static void xen_platform_class_init(ObjectClass *klass, void *data) |
406 | 40021f08 | Anthony Liguori | { |
407 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
408 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
409 | 40021f08 | Anthony Liguori | |
410 | 40021f08 | Anthony Liguori | k->init = xen_platform_initfn; |
411 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_XEN; |
412 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_XEN_PLATFORM; |
413 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_OTHERS << 8 | 0x80; |
414 | 40021f08 | Anthony Liguori | k->subsystem_vendor_id = PCI_VENDOR_ID_XEN; |
415 | 40021f08 | Anthony Liguori | k->subsystem_id = PCI_DEVICE_ID_XEN_PLATFORM; |
416 | 40021f08 | Anthony Liguori | k->revision = 1;
|
417 | 39bffca2 | Anthony Liguori | dc->desc = "XEN platform pci device";
|
418 | 39bffca2 | Anthony Liguori | dc->reset = platform_reset; |
419 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_xen_platform; |
420 | 40021f08 | Anthony Liguori | } |
421 | 40021f08 | Anthony Liguori | |
422 | 8c43a6f0 | Andreas Färber | static const TypeInfo xen_platform_info = { |
423 | 39bffca2 | Anthony Liguori | .name = "xen-platform",
|
424 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
425 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PCIXenPlatformState),
|
426 | 39bffca2 | Anthony Liguori | .class_init = xen_platform_class_init, |
427 | 01195b73 | Steven Smith | }; |
428 | 01195b73 | Steven Smith | |
429 | 83f7d43a | Andreas Färber | static void xen_platform_register_types(void) |
430 | 01195b73 | Steven Smith | { |
431 | 39bffca2 | Anthony Liguori | type_register_static(&xen_platform_info); |
432 | 01195b73 | Steven Smith | } |
433 | 01195b73 | Steven Smith | |
434 | 83f7d43a | Andreas Färber | type_init(xen_platform_register_types) |