root / hw / acpi_piix4.c @ 5e22c276
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1 | 93d89f63 | Isaku Yamahata | /*
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2 | 93d89f63 | Isaku Yamahata | * ACPI implementation
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3 | 93d89f63 | Isaku Yamahata | *
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4 | 93d89f63 | Isaku Yamahata | * Copyright (c) 2006 Fabrice Bellard
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5 | 93d89f63 | Isaku Yamahata | *
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6 | 93d89f63 | Isaku Yamahata | * This library is free software; you can redistribute it and/or
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7 | 93d89f63 | Isaku Yamahata | * modify it under the terms of the GNU Lesser General Public
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8 | 93d89f63 | Isaku Yamahata | * License version 2 as published by the Free Software Foundation.
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9 | 93d89f63 | Isaku Yamahata | *
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10 | 93d89f63 | Isaku Yamahata | * This library is distributed in the hope that it will be useful,
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11 | 93d89f63 | Isaku Yamahata | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | 93d89f63 | Isaku Yamahata | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | 93d89f63 | Isaku Yamahata | * Lesser General Public License for more details.
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14 | 93d89f63 | Isaku Yamahata | *
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15 | 93d89f63 | Isaku Yamahata | * You should have received a copy of the GNU Lesser General Public
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16 | 93d89f63 | Isaku Yamahata | * License along with this library; if not, see <http://www.gnu.org/licenses/>
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17 | 6b620ca3 | Paolo Bonzini | *
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18 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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19 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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20 | 93d89f63 | Isaku Yamahata | */
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21 | 93d89f63 | Isaku Yamahata | #include "hw.h" |
22 | 93d89f63 | Isaku Yamahata | #include "pc.h" |
23 | 93d89f63 | Isaku Yamahata | #include "apm.h" |
24 | 93d89f63 | Isaku Yamahata | #include "pm_smbus.h" |
25 | a2cb15b0 | Michael S. Tsirkin | #include "pci/pci.h" |
26 | 93d89f63 | Isaku Yamahata | #include "acpi.h" |
27 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
28 | 1de7afc9 | Paolo Bonzini | #include "qemu/range.h" |
29 | 022c62cb | Paolo Bonzini | #include "exec/ioport.h" |
30 | 459ae5ea | Gleb Natapov | #include "fw_cfg.h" |
31 | 022c62cb | Paolo Bonzini | #include "exec/address-spaces.h" |
32 | 93d89f63 | Isaku Yamahata | |
33 | 93d89f63 | Isaku Yamahata | //#define DEBUG
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34 | 93d89f63 | Isaku Yamahata | |
35 | 50d8ff8b | Isaku Yamahata | #ifdef DEBUG
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36 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) |
37 | 50d8ff8b | Isaku Yamahata | #else
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38 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) do { } while (0) |
39 | 50d8ff8b | Isaku Yamahata | #endif
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40 | 50d8ff8b | Isaku Yamahata | |
41 | ac404095 | Isaku Yamahata | #define GPE_BASE 0xafe0 |
42 | 23910d3f | Isaku Yamahata | #define GPE_LEN 4 |
43 | c177684c | Gerd Hoffmann | |
44 | c177684c | Gerd Hoffmann | #define PCI_HOTPLUG_ADDR 0xae00 |
45 | c177684c | Gerd Hoffmann | #define PCI_HOTPLUG_SIZE 0x000f |
46 | ba737541 | Alex Williamson | #define PCI_UP_BASE 0xae00 |
47 | ba737541 | Alex Williamson | #define PCI_DOWN_BASE 0xae04 |
48 | ac404095 | Isaku Yamahata | #define PCI_EJ_BASE 0xae08 |
49 | 668643b0 | Marcelo Tosatti | #define PCI_RMV_BASE 0xae0c |
50 | ac404095 | Isaku Yamahata | |
51 | 4441a287 | Gleb Natapov | #define PIIX4_PCI_HOTPLUG_STATUS 2 |
52 | 4441a287 | Gleb Natapov | |
53 | ac404095 | Isaku Yamahata | struct pci_status {
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54 | 7faa8075 | Alex Williamson | uint32_t up; /* deprecated, maintained for migration compatibility */
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55 | ac404095 | Isaku Yamahata | uint32_t down; |
56 | ac404095 | Isaku Yamahata | }; |
57 | ac404095 | Isaku Yamahata | |
58 | 93d89f63 | Isaku Yamahata | typedef struct PIIX4PMState { |
59 | 93d89f63 | Isaku Yamahata | PCIDevice dev; |
60 | 56e5b2a1 | Gerd Hoffmann | |
61 | af11110b | Gerd Hoffmann | MemoryRegion io; |
62 | b65b93f2 | Gerd Hoffmann | MemoryRegion io_gpe; |
63 | c177684c | Gerd Hoffmann | MemoryRegion io_pci; |
64 | 355bf2e5 | Gerd Hoffmann | ACPIREGS ar; |
65 | 93d89f63 | Isaku Yamahata | |
66 | 93d89f63 | Isaku Yamahata | APMState apm; |
67 | 93d89f63 | Isaku Yamahata | |
68 | 93d89f63 | Isaku Yamahata | PMSMBus smb; |
69 | e8ec0571 | Isaku Yamahata | uint32_t smb_io_base; |
70 | 93d89f63 | Isaku Yamahata | |
71 | 93d89f63 | Isaku Yamahata | qemu_irq irq; |
72 | 93d89f63 | Isaku Yamahata | qemu_irq smi_irq; |
73 | 93d89f63 | Isaku Yamahata | int kvm_enabled;
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74 | 6141dbfe | Paolo Bonzini | Notifier machine_ready; |
75 | d010f91c | Igor Mammedov | Notifier powerdown_notifier; |
76 | ac404095 | Isaku Yamahata | |
77 | ac404095 | Isaku Yamahata | /* for pci hotplug */
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78 | ac404095 | Isaku Yamahata | struct pci_status pci0_status;
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79 | 668643b0 | Marcelo Tosatti | uint32_t pci0_hotplug_enable; |
80 | 7faa8075 | Alex Williamson | uint32_t pci0_slot_device_present; |
81 | 459ae5ea | Gleb Natapov | |
82 | 459ae5ea | Gleb Natapov | uint8_t disable_s3; |
83 | 459ae5ea | Gleb Natapov | uint8_t disable_s4; |
84 | 459ae5ea | Gleb Natapov | uint8_t s4_val; |
85 | 93d89f63 | Isaku Yamahata | } PIIX4PMState; |
86 | 93d89f63 | Isaku Yamahata | |
87 | 56e5b2a1 | Gerd Hoffmann | static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, |
88 | 56e5b2a1 | Gerd Hoffmann | PCIBus *bus, PIIX4PMState *s); |
89 | ac404095 | Isaku Yamahata | |
90 | 93d89f63 | Isaku Yamahata | #define ACPI_ENABLE 0xf1 |
91 | 93d89f63 | Isaku Yamahata | #define ACPI_DISABLE 0xf0 |
92 | 93d89f63 | Isaku Yamahata | |
93 | 93d89f63 | Isaku Yamahata | static void pm_update_sci(PIIX4PMState *s) |
94 | 93d89f63 | Isaku Yamahata | { |
95 | 93d89f63 | Isaku Yamahata | int sci_level, pmsts;
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96 | 93d89f63 | Isaku Yamahata | |
97 | 2886be1b | Gerd Hoffmann | pmsts = acpi_pm1_evt_get_sts(&s->ar); |
98 | 355bf2e5 | Gerd Hoffmann | sci_level = (((pmsts & s->ar.pm1.evt.en) & |
99 | 93d89f63 | Isaku Yamahata | (ACPI_BITMASK_RT_CLOCK_ENABLE | |
100 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_POWER_BUTTON_ENABLE | |
101 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_GLOBAL_LOCK_ENABLE | |
102 | 633aa0ac | Gleb Natapov | ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
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103 | 355bf2e5 | Gerd Hoffmann | (((s->ar.gpe.sts[0] & s->ar.gpe.en[0]) |
104 | 355bf2e5 | Gerd Hoffmann | & PIIX4_PCI_HOTPLUG_STATUS) != 0);
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105 | 633aa0ac | Gleb Natapov | |
106 | 93d89f63 | Isaku Yamahata | qemu_set_irq(s->irq, sci_level); |
107 | 93d89f63 | Isaku Yamahata | /* schedule a timer interruption if needed */
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108 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && |
109 | a54d41a8 | Isaku Yamahata | !(pmsts & ACPI_BITMASK_TIMER_STATUS)); |
110 | 93d89f63 | Isaku Yamahata | } |
111 | 93d89f63 | Isaku Yamahata | |
112 | 355bf2e5 | Gerd Hoffmann | static void pm_tmr_timer(ACPIREGS *ar) |
113 | 93d89f63 | Isaku Yamahata | { |
114 | 355bf2e5 | Gerd Hoffmann | PIIX4PMState *s = container_of(ar, PIIX4PMState, ar); |
115 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
116 | 93d89f63 | Isaku Yamahata | } |
117 | 93d89f63 | Isaku Yamahata | |
118 | 93d89f63 | Isaku Yamahata | static void apm_ctrl_changed(uint32_t val, void *arg) |
119 | 93d89f63 | Isaku Yamahata | { |
120 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = arg; |
121 | 93d89f63 | Isaku Yamahata | |
122 | 93d89f63 | Isaku Yamahata | /* ACPI specs 3.0, 4.7.2.5 */
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123 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE); |
124 | 93d89f63 | Isaku Yamahata | |
125 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x5b] & (1 << 1)) { |
126 | 93d89f63 | Isaku Yamahata | if (s->smi_irq) {
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127 | 93d89f63 | Isaku Yamahata | qemu_irq_raise(s->smi_irq); |
128 | 93d89f63 | Isaku Yamahata | } |
129 | 93d89f63 | Isaku Yamahata | } |
130 | 93d89f63 | Isaku Yamahata | } |
131 | 93d89f63 | Isaku Yamahata | |
132 | 93d89f63 | Isaku Yamahata | static void pm_io_space_update(PIIX4PMState *s) |
133 | 93d89f63 | Isaku Yamahata | { |
134 | 93d89f63 | Isaku Yamahata | uint32_t pm_io_base; |
135 | 93d89f63 | Isaku Yamahata | |
136 | af11110b | Gerd Hoffmann | pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
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137 | af11110b | Gerd Hoffmann | pm_io_base &= 0xffc0;
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138 | 93d89f63 | Isaku Yamahata | |
139 | af11110b | Gerd Hoffmann | memory_region_transaction_begin(); |
140 | af11110b | Gerd Hoffmann | memory_region_set_enabled(&s->io, s->dev.config[0x80] & 1); |
141 | af11110b | Gerd Hoffmann | memory_region_set_address(&s->io, pm_io_base); |
142 | af11110b | Gerd Hoffmann | memory_region_transaction_commit(); |
143 | 93d89f63 | Isaku Yamahata | } |
144 | 93d89f63 | Isaku Yamahata | |
145 | 24fe083d | Gerd Hoffmann | static void smbus_io_space_update(PIIX4PMState *s) |
146 | 24fe083d | Gerd Hoffmann | { |
147 | 24fe083d | Gerd Hoffmann | s->smb_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x90));
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148 | 24fe083d | Gerd Hoffmann | s->smb_io_base &= 0xffc0;
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149 | 24fe083d | Gerd Hoffmann | |
150 | 24fe083d | Gerd Hoffmann | memory_region_transaction_begin(); |
151 | 24fe083d | Gerd Hoffmann | memory_region_set_enabled(&s->smb.io, s->dev.config[0xd2] & 1); |
152 | 24fe083d | Gerd Hoffmann | memory_region_set_address(&s->smb.io, s->smb_io_base); |
153 | 24fe083d | Gerd Hoffmann | memory_region_transaction_commit(); |
154 | 93d89f63 | Isaku Yamahata | } |
155 | 93d89f63 | Isaku Yamahata | |
156 | 93d89f63 | Isaku Yamahata | static void pm_write_config(PCIDevice *d, |
157 | 93d89f63 | Isaku Yamahata | uint32_t address, uint32_t val, int len)
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158 | 93d89f63 | Isaku Yamahata | { |
159 | 93d89f63 | Isaku Yamahata | pci_default_write_config(d, address, val, len); |
160 | 24fe083d | Gerd Hoffmann | if (range_covers_byte(address, len, 0x80) || |
161 | 24fe083d | Gerd Hoffmann | ranges_overlap(address, len, 0x40, 4)) { |
162 | 93d89f63 | Isaku Yamahata | pm_io_space_update((PIIX4PMState *)d); |
163 | 24fe083d | Gerd Hoffmann | } |
164 | 24fe083d | Gerd Hoffmann | if (range_covers_byte(address, len, 0xd2) || |
165 | 24fe083d | Gerd Hoffmann | ranges_overlap(address, len, 0x90, 4)) { |
166 | 24fe083d | Gerd Hoffmann | smbus_io_space_update((PIIX4PMState *)d); |
167 | 24fe083d | Gerd Hoffmann | } |
168 | 93d89f63 | Isaku Yamahata | } |
169 | 93d89f63 | Isaku Yamahata | |
170 | 7faa8075 | Alex Williamson | static void vmstate_pci_status_pre_save(void *opaque) |
171 | 7faa8075 | Alex Williamson | { |
172 | 7faa8075 | Alex Williamson | struct pci_status *pci0_status = opaque;
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173 | 7faa8075 | Alex Williamson | PIIX4PMState *s = container_of(pci0_status, PIIX4PMState, pci0_status); |
174 | 7faa8075 | Alex Williamson | |
175 | 7faa8075 | Alex Williamson | /* We no longer track up, so build a safe value for migrating
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176 | 7faa8075 | Alex Williamson | * to a version that still does... of course these might get lost
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177 | 7faa8075 | Alex Williamson | * by an old buggy implementation, but we try. */
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178 | 7faa8075 | Alex Williamson | pci0_status->up = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
179 | 7faa8075 | Alex Williamson | } |
180 | 7faa8075 | Alex Williamson | |
181 | 93d89f63 | Isaku Yamahata | static int vmstate_acpi_post_load(void *opaque, int version_id) |
182 | 93d89f63 | Isaku Yamahata | { |
183 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
184 | 93d89f63 | Isaku Yamahata | |
185 | 93d89f63 | Isaku Yamahata | pm_io_space_update(s); |
186 | 93d89f63 | Isaku Yamahata | return 0; |
187 | 93d89f63 | Isaku Yamahata | } |
188 | 93d89f63 | Isaku Yamahata | |
189 | 23910d3f | Isaku Yamahata | #define VMSTATE_GPE_ARRAY(_field, _state) \
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190 | 23910d3f | Isaku Yamahata | { \ |
191 | 23910d3f | Isaku Yamahata | .name = (stringify(_field)), \ |
192 | 23910d3f | Isaku Yamahata | .version_id = 0, \
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193 | 23910d3f | Isaku Yamahata | .info = &vmstate_info_uint16, \ |
194 | 23910d3f | Isaku Yamahata | .size = sizeof(uint16_t), \
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195 | b0b873a0 | Marcelo Tosatti | .flags = VMS_SINGLE | VMS_POINTER, \ |
196 | 23910d3f | Isaku Yamahata | .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ |
197 | 23910d3f | Isaku Yamahata | } |
198 | 23910d3f | Isaku Yamahata | |
199 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_gpe = { |
200 | 4cf3e6f3 | Alex Williamson | .name = "gpe",
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201 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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202 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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203 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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204 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
205 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(sts, ACPIGPE), |
206 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(en, ACPIGPE), |
207 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
208 | 4cf3e6f3 | Alex Williamson | } |
209 | 4cf3e6f3 | Alex Williamson | }; |
210 | 4cf3e6f3 | Alex Williamson | |
211 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_pci_status = { |
212 | 4cf3e6f3 | Alex Williamson | .name = "pci_status",
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213 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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214 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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215 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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216 | 7faa8075 | Alex Williamson | .pre_save = vmstate_pci_status_pre_save, |
217 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
218 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(up, struct pci_status),
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219 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(down, struct pci_status),
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220 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
221 | 4cf3e6f3 | Alex Williamson | } |
222 | 4cf3e6f3 | Alex Williamson | }; |
223 | 4cf3e6f3 | Alex Williamson | |
224 | b0b873a0 | Marcelo Tosatti | static int acpi_load_old(QEMUFile *f, void *opaque, int version_id) |
225 | b0b873a0 | Marcelo Tosatti | { |
226 | b0b873a0 | Marcelo Tosatti | PIIX4PMState *s = opaque; |
227 | b0b873a0 | Marcelo Tosatti | int ret, i;
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228 | b0b873a0 | Marcelo Tosatti | uint16_t temp; |
229 | b0b873a0 | Marcelo Tosatti | |
230 | b0b873a0 | Marcelo Tosatti | ret = pci_device_load(&s->dev, f); |
231 | b0b873a0 | Marcelo Tosatti | if (ret < 0) { |
232 | b0b873a0 | Marcelo Tosatti | return ret;
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233 | b0b873a0 | Marcelo Tosatti | } |
234 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, &s->ar.pm1.evt.sts); |
235 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, &s->ar.pm1.evt.en); |
236 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, &s->ar.pm1.cnt.cnt); |
237 | b0b873a0 | Marcelo Tosatti | |
238 | b0b873a0 | Marcelo Tosatti | ret = vmstate_load_state(f, &vmstate_apm, opaque, 1);
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239 | b0b873a0 | Marcelo Tosatti | if (ret) {
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240 | b0b873a0 | Marcelo Tosatti | return ret;
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241 | b0b873a0 | Marcelo Tosatti | } |
242 | b0b873a0 | Marcelo Tosatti | |
243 | b0b873a0 | Marcelo Tosatti | qemu_get_timer(f, s->ar.tmr.timer); |
244 | b0b873a0 | Marcelo Tosatti | qemu_get_sbe64s(f, &s->ar.tmr.overflow_time); |
245 | b0b873a0 | Marcelo Tosatti | |
246 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, (uint16_t *)s->ar.gpe.sts); |
247 | b0b873a0 | Marcelo Tosatti | for (i = 0; i < 3; i++) { |
248 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, &temp); |
249 | b0b873a0 | Marcelo Tosatti | } |
250 | b0b873a0 | Marcelo Tosatti | |
251 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, (uint16_t *)s->ar.gpe.en); |
252 | b0b873a0 | Marcelo Tosatti | for (i = 0; i < 3; i++) { |
253 | b0b873a0 | Marcelo Tosatti | qemu_get_be16s(f, &temp); |
254 | b0b873a0 | Marcelo Tosatti | } |
255 | b0b873a0 | Marcelo Tosatti | |
256 | b0b873a0 | Marcelo Tosatti | ret = vmstate_load_state(f, &vmstate_pci_status, opaque, 1);
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257 | b0b873a0 | Marcelo Tosatti | return ret;
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258 | b0b873a0 | Marcelo Tosatti | } |
259 | b0b873a0 | Marcelo Tosatti | |
260 | b0b873a0 | Marcelo Tosatti | /* qemu-kvm 1.2 uses version 3 but advertised as 2
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261 | b0b873a0 | Marcelo Tosatti | * To support incoming qemu-kvm 1.2 migration, change version_id
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262 | b0b873a0 | Marcelo Tosatti | * and minimum_version_id to 2 below (which breaks migration from
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263 | b0b873a0 | Marcelo Tosatti | * qemu 1.2).
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264 | b0b873a0 | Marcelo Tosatti | *
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265 | b0b873a0 | Marcelo Tosatti | */
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266 | 93d89f63 | Isaku Yamahata | static const VMStateDescription vmstate_acpi = { |
267 | 93d89f63 | Isaku Yamahata | .name = "piix4_pm",
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268 | b0b873a0 | Marcelo Tosatti | .version_id = 3,
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269 | b0b873a0 | Marcelo Tosatti | .minimum_version_id = 3,
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270 | 93d89f63 | Isaku Yamahata | .minimum_version_id_old = 1,
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271 | b0b873a0 | Marcelo Tosatti | .load_state_old = acpi_load_old, |
272 | 93d89f63 | Isaku Yamahata | .post_load = vmstate_acpi_post_load, |
273 | 93d89f63 | Isaku Yamahata | .fields = (VMStateField []) { |
274 | 93d89f63 | Isaku Yamahata | VMSTATE_PCI_DEVICE(dev, PIIX4PMState), |
275 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState), |
276 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState), |
277 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState), |
278 | 93d89f63 | Isaku Yamahata | VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
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279 | 355bf2e5 | Gerd Hoffmann | VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState), |
280 | 355bf2e5 | Gerd Hoffmann | VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), |
281 | 355bf2e5 | Gerd Hoffmann | VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
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282 | 4cf3e6f3 | Alex Williamson | VMSTATE_STRUCT(pci0_status, PIIX4PMState, 2, vmstate_pci_status,
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283 | 4cf3e6f3 | Alex Williamson | struct pci_status),
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284 | 93d89f63 | Isaku Yamahata | VMSTATE_END_OF_LIST() |
285 | 93d89f63 | Isaku Yamahata | } |
286 | 93d89f63 | Isaku Yamahata | }; |
287 | 93d89f63 | Isaku Yamahata | |
288 | 7faa8075 | Alex Williamson | static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) |
289 | 7faa8075 | Alex Williamson | { |
290 | 0866aca1 | Anthony Liguori | BusChild *kid, *next; |
291 | 7faa8075 | Alex Williamson | BusState *bus = qdev_get_parent_bus(&s->dev.qdev); |
292 | 7faa8075 | Alex Williamson | int slot = ffs(slots) - 1; |
293 | 54bfa546 | Michael S. Tsirkin | bool slot_free = true; |
294 | 7faa8075 | Alex Williamson | |
295 | 7faa8075 | Alex Williamson | /* Mark request as complete */
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296 | 7faa8075 | Alex Williamson | s->pci0_status.down &= ~(1U << slot);
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297 | 7faa8075 | Alex Williamson | |
298 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { |
299 | 0866aca1 | Anthony Liguori | DeviceState *qdev = kid->child; |
300 | 7faa8075 | Alex Williamson | PCIDevice *dev = PCI_DEVICE(qdev); |
301 | 7faa8075 | Alex Williamson | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); |
302 | 54bfa546 | Michael S. Tsirkin | if (PCI_SLOT(dev->devfn) == slot) {
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303 | 54bfa546 | Michael S. Tsirkin | if (pc->no_hotplug) {
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304 | 54bfa546 | Michael S. Tsirkin | slot_free = false;
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305 | 54bfa546 | Michael S. Tsirkin | } else {
|
306 | 54bfa546 | Michael S. Tsirkin | qdev_free(qdev); |
307 | 54bfa546 | Michael S. Tsirkin | } |
308 | 7faa8075 | Alex Williamson | } |
309 | 7faa8075 | Alex Williamson | } |
310 | 54bfa546 | Michael S. Tsirkin | if (slot_free) {
|
311 | 54bfa546 | Michael S. Tsirkin | s->pci0_slot_device_present &= ~(1U << slot);
|
312 | 54bfa546 | Michael S. Tsirkin | } |
313 | 7faa8075 | Alex Williamson | } |
314 | 7faa8075 | Alex Williamson | |
315 | 668643b0 | Marcelo Tosatti | static void piix4_update_hotplug(PIIX4PMState *s) |
316 | 668643b0 | Marcelo Tosatti | { |
317 | 668643b0 | Marcelo Tosatti | PCIDevice *dev = &s->dev; |
318 | 668643b0 | Marcelo Tosatti | BusState *bus = qdev_get_parent_bus(&dev->qdev); |
319 | 0866aca1 | Anthony Liguori | BusChild *kid, *next; |
320 | 668643b0 | Marcelo Tosatti | |
321 | 7faa8075 | Alex Williamson | /* Execute any pending removes during reset */
|
322 | 7faa8075 | Alex Williamson | while (s->pci0_status.down) {
|
323 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(s, s->pci0_status.down); |
324 | 7faa8075 | Alex Williamson | } |
325 | 7faa8075 | Alex Williamson | |
326 | 668643b0 | Marcelo Tosatti | s->pci0_hotplug_enable = ~0;
|
327 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present = 0;
|
328 | 668643b0 | Marcelo Tosatti | |
329 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { |
330 | 0866aca1 | Anthony Liguori | DeviceState *qdev = kid->child; |
331 | 40021f08 | Anthony Liguori | PCIDevice *pdev = PCI_DEVICE(qdev); |
332 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev); |
333 | 668643b0 | Marcelo Tosatti | int slot = PCI_SLOT(pdev->devfn);
|
334 | 668643b0 | Marcelo Tosatti | |
335 | 40021f08 | Anthony Liguori | if (pc->no_hotplug) {
|
336 | 7faa8075 | Alex Williamson | s->pci0_hotplug_enable &= ~(1U << slot);
|
337 | 668643b0 | Marcelo Tosatti | } |
338 | 7faa8075 | Alex Williamson | |
339 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
340 | 668643b0 | Marcelo Tosatti | } |
341 | 668643b0 | Marcelo Tosatti | } |
342 | 668643b0 | Marcelo Tosatti | |
343 | 93d89f63 | Isaku Yamahata | static void piix4_reset(void *opaque) |
344 | 93d89f63 | Isaku Yamahata | { |
345 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
346 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf = s->dev.config; |
347 | 93d89f63 | Isaku Yamahata | |
348 | 93d89f63 | Isaku Yamahata | pci_conf[0x58] = 0; |
349 | 93d89f63 | Isaku Yamahata | pci_conf[0x59] = 0; |
350 | 93d89f63 | Isaku Yamahata | pci_conf[0x5a] = 0; |
351 | 93d89f63 | Isaku Yamahata | pci_conf[0x5b] = 0; |
352 | 93d89f63 | Isaku Yamahata | |
353 | 4d09d37c | Gleb Natapov | pci_conf[0x40] = 0x01; /* PM io base read only bit */ |
354 | 4d09d37c | Gleb Natapov | pci_conf[0x80] = 0; |
355 | 4d09d37c | Gleb Natapov | |
356 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
357 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited (until KVM supports SMM). */
|
358 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
359 | 93d89f63 | Isaku Yamahata | } |
360 | 668643b0 | Marcelo Tosatti | piix4_update_hotplug(s); |
361 | 93d89f63 | Isaku Yamahata | } |
362 | 93d89f63 | Isaku Yamahata | |
363 | d010f91c | Igor Mammedov | static void piix4_pm_powerdown_req(Notifier *n, void *opaque) |
364 | 93d89f63 | Isaku Yamahata | { |
365 | d010f91c | Igor Mammedov | PIIX4PMState *s = container_of(n, PIIX4PMState, powerdown_notifier); |
366 | 93d89f63 | Isaku Yamahata | |
367 | 355bf2e5 | Gerd Hoffmann | assert(s != NULL);
|
368 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_evt_power_down(&s->ar); |
369 | 93d89f63 | Isaku Yamahata | } |
370 | 93d89f63 | Isaku Yamahata | |
371 | 9e8dd451 | Jan Kiszka | static void piix4_pm_machine_ready(Notifier *n, void *opaque) |
372 | 6141dbfe | Paolo Bonzini | { |
373 | 6141dbfe | Paolo Bonzini | PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready); |
374 | 6141dbfe | Paolo Bonzini | uint8_t *pci_conf; |
375 | 6141dbfe | Paolo Bonzini | |
376 | 6141dbfe | Paolo Bonzini | pci_conf = s->dev.config; |
377 | 6141dbfe | Paolo Bonzini | pci_conf[0x5f] = (isa_is_ioport_assigned(0x378) ? 0x80 : 0) | 0x10; |
378 | 6141dbfe | Paolo Bonzini | pci_conf[0x63] = 0x60; |
379 | 6141dbfe | Paolo Bonzini | pci_conf[0x67] = (isa_is_ioport_assigned(0x3f8) ? 0x08 : 0) | |
380 | 6141dbfe | Paolo Bonzini | (isa_is_ioport_assigned(0x2f8) ? 0x90 : 0); |
381 | 6141dbfe | Paolo Bonzini | |
382 | 6141dbfe | Paolo Bonzini | } |
383 | 6141dbfe | Paolo Bonzini | |
384 | e8ec0571 | Isaku Yamahata | static int piix4_pm_initfn(PCIDevice *dev) |
385 | 93d89f63 | Isaku Yamahata | { |
386 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, dev); |
387 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf; |
388 | 93d89f63 | Isaku Yamahata | |
389 | 93d89f63 | Isaku Yamahata | pci_conf = s->dev.config; |
390 | 93d89f63 | Isaku Yamahata | pci_conf[0x06] = 0x80; |
391 | 93d89f63 | Isaku Yamahata | pci_conf[0x07] = 0x02; |
392 | 93d89f63 | Isaku Yamahata | pci_conf[0x09] = 0x00; |
393 | 93d89f63 | Isaku Yamahata | pci_conf[0x3d] = 0x01; // interrupt pin 1 |
394 | 93d89f63 | Isaku Yamahata | |
395 | 93d89f63 | Isaku Yamahata | /* APM */
|
396 | 42d8a3cf | Julien Grall | apm_init(dev, &s->apm, apm_ctrl_changed, s); |
397 | 93d89f63 | Isaku Yamahata | |
398 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
399 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited to prevent SMM from running. KVM does not
|
400 | 93d89f63 | Isaku Yamahata | * support SMM mode. */
|
401 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
402 | 93d89f63 | Isaku Yamahata | } |
403 | 93d89f63 | Isaku Yamahata | |
404 | 93d89f63 | Isaku Yamahata | /* XXX: which specification is used ? The i82731AB has different
|
405 | 93d89f63 | Isaku Yamahata | mappings */
|
406 | e8ec0571 | Isaku Yamahata | pci_conf[0x90] = s->smb_io_base | 1; |
407 | e8ec0571 | Isaku Yamahata | pci_conf[0x91] = s->smb_io_base >> 8; |
408 | 93d89f63 | Isaku Yamahata | pci_conf[0xd2] = 0x09; |
409 | 798512e5 | Gerd Hoffmann | pm_smbus_init(&s->dev.qdev, &s->smb); |
410 | 24fe083d | Gerd Hoffmann | memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1); |
411 | 56e5b2a1 | Gerd Hoffmann | memory_region_add_subregion(pci_address_space_io(dev), |
412 | 56e5b2a1 | Gerd Hoffmann | s->smb_io_base, &s->smb.io); |
413 | 93d89f63 | Isaku Yamahata | |
414 | ca5d64b4 | Gerd Hoffmann | memory_region_init(&s->io, "piix4-pm", 64); |
415 | af11110b | Gerd Hoffmann | memory_region_set_enabled(&s->io, false);
|
416 | 56e5b2a1 | Gerd Hoffmann | memory_region_add_subregion(pci_address_space_io(dev), |
417 | 56e5b2a1 | Gerd Hoffmann | 0, &s->io);
|
418 | 93d89f63 | Isaku Yamahata | |
419 | 77d58b1e | Gerd Hoffmann | acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io); |
420 | b5a7c024 | Gerd Hoffmann | acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io); |
421 | afafe4bb | Gerd Hoffmann | acpi_pm1_cnt_init(&s->ar, &s->io); |
422 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_init(&s->ar, GPE_LEN); |
423 | 93d89f63 | Isaku Yamahata | |
424 | d010f91c | Igor Mammedov | s->powerdown_notifier.notify = piix4_pm_powerdown_req; |
425 | d010f91c | Igor Mammedov | qemu_register_powerdown_notifier(&s->powerdown_notifier); |
426 | 93d89f63 | Isaku Yamahata | |
427 | 6141dbfe | Paolo Bonzini | s->machine_ready.notify = piix4_pm_machine_ready; |
428 | 6141dbfe | Paolo Bonzini | qemu_add_machine_init_done_notifier(&s->machine_ready); |
429 | e8ec0571 | Isaku Yamahata | qemu_register_reset(piix4_reset, s); |
430 | 56e5b2a1 | Gerd Hoffmann | |
431 | 56e5b2a1 | Gerd Hoffmann | piix4_acpi_system_hot_add_init(pci_address_space_io(dev), dev->bus, s); |
432 | e8ec0571 | Isaku Yamahata | |
433 | e8ec0571 | Isaku Yamahata | return 0; |
434 | e8ec0571 | Isaku Yamahata | } |
435 | e8ec0571 | Isaku Yamahata | |
436 | e8ec0571 | Isaku Yamahata | i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
|
437 | da98c8eb | Gerd Hoffmann | qemu_irq sci_irq, qemu_irq smi_irq, |
438 | 459ae5ea | Gleb Natapov | int kvm_enabled, void *fw_cfg) |
439 | e8ec0571 | Isaku Yamahata | { |
440 | e8ec0571 | Isaku Yamahata | PCIDevice *dev; |
441 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s; |
442 | e8ec0571 | Isaku Yamahata | |
443 | e8ec0571 | Isaku Yamahata | dev = pci_create(bus, devfn, "PIIX4_PM");
|
444 | e8ec0571 | Isaku Yamahata | qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
|
445 | 93d89f63 | Isaku Yamahata | |
446 | e8ec0571 | Isaku Yamahata | s = DO_UPCAST(PIIX4PMState, dev, dev); |
447 | 93d89f63 | Isaku Yamahata | s->irq = sci_irq; |
448 | 93d89f63 | Isaku Yamahata | s->smi_irq = smi_irq; |
449 | e8ec0571 | Isaku Yamahata | s->kvm_enabled = kvm_enabled; |
450 | e8ec0571 | Isaku Yamahata | |
451 | e8ec0571 | Isaku Yamahata | qdev_init_nofail(&dev->qdev); |
452 | 93d89f63 | Isaku Yamahata | |
453 | 459ae5ea | Gleb Natapov | if (fw_cfg) {
|
454 | 459ae5ea | Gleb Natapov | uint8_t suspend[6] = {128, 0, 0, 129, 128, 128}; |
455 | 459ae5ea | Gleb Natapov | suspend[3] = 1 | ((!s->disable_s3) << 7); |
456 | 459ae5ea | Gleb Natapov | suspend[4] = s->s4_val | ((!s->disable_s4) << 7); |
457 | 459ae5ea | Gleb Natapov | |
458 | 459ae5ea | Gleb Natapov | fw_cfg_add_file(fw_cfg, "etc/system-states", g_memdup(suspend, 6), 6); |
459 | 459ae5ea | Gleb Natapov | } |
460 | 459ae5ea | Gleb Natapov | |
461 | 93d89f63 | Isaku Yamahata | return s->smb.smbus;
|
462 | 93d89f63 | Isaku Yamahata | } |
463 | 93d89f63 | Isaku Yamahata | |
464 | 40021f08 | Anthony Liguori | static Property piix4_pm_properties[] = {
|
465 | 40021f08 | Anthony Liguori | DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), |
466 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("disable_s3", PIIX4PMState, disable_s3, 0), |
467 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("disable_s4", PIIX4PMState, disable_s4, 0), |
468 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("s4_val", PIIX4PMState, s4_val, 2), |
469 | 40021f08 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
470 | 40021f08 | Anthony Liguori | }; |
471 | 40021f08 | Anthony Liguori | |
472 | 40021f08 | Anthony Liguori | static void piix4_pm_class_init(ObjectClass *klass, void *data) |
473 | 40021f08 | Anthony Liguori | { |
474 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
475 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
476 | 40021f08 | Anthony Liguori | |
477 | 40021f08 | Anthony Liguori | k->no_hotplug = 1;
|
478 | 40021f08 | Anthony Liguori | k->init = piix4_pm_initfn; |
479 | 40021f08 | Anthony Liguori | k->config_write = pm_write_config; |
480 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_INTEL; |
481 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; |
482 | 40021f08 | Anthony Liguori | k->revision = 0x03;
|
483 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_OTHER; |
484 | 39bffca2 | Anthony Liguori | dc->desc = "PM";
|
485 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
486 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_acpi; |
487 | 39bffca2 | Anthony Liguori | dc->props = piix4_pm_properties; |
488 | 40021f08 | Anthony Liguori | } |
489 | 40021f08 | Anthony Liguori | |
490 | 39bffca2 | Anthony Liguori | static TypeInfo piix4_pm_info = {
|
491 | 39bffca2 | Anthony Liguori | .name = "PIIX4_PM",
|
492 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
493 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PIIX4PMState),
|
494 | 39bffca2 | Anthony Liguori | .class_init = piix4_pm_class_init, |
495 | e8ec0571 | Isaku Yamahata | }; |
496 | e8ec0571 | Isaku Yamahata | |
497 | 83f7d43a | Andreas Fรคrber | static void piix4_pm_register_types(void) |
498 | e8ec0571 | Isaku Yamahata | { |
499 | 39bffca2 | Anthony Liguori | type_register_static(&piix4_pm_info); |
500 | e8ec0571 | Isaku Yamahata | } |
501 | e8ec0571 | Isaku Yamahata | |
502 | 83f7d43a | Andreas Fรคrber | type_init(piix4_pm_register_types) |
503 | e8ec0571 | Isaku Yamahata | |
504 | b65b93f2 | Gerd Hoffmann | static uint64_t gpe_readb(void *opaque, hwaddr addr, unsigned width) |
505 | 93d89f63 | Isaku Yamahata | { |
506 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
507 | 355bf2e5 | Gerd Hoffmann | uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr); |
508 | 93d89f63 | Isaku Yamahata | |
509 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe read %x == %x\n", addr, val);
|
510 | 93d89f63 | Isaku Yamahata | return val;
|
511 | 93d89f63 | Isaku Yamahata | } |
512 | 93d89f63 | Isaku Yamahata | |
513 | b65b93f2 | Gerd Hoffmann | static void gpe_writeb(void *opaque, hwaddr addr, uint64_t val, |
514 | b65b93f2 | Gerd Hoffmann | unsigned width)
|
515 | 93d89f63 | Isaku Yamahata | { |
516 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
517 | 633aa0ac | Gleb Natapov | |
518 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_ioport_writeb(&s->ar, addr, val); |
519 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
520 | 93d89f63 | Isaku Yamahata | |
521 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe write %x <== %d\n", addr, val);
|
522 | 93d89f63 | Isaku Yamahata | } |
523 | 93d89f63 | Isaku Yamahata | |
524 | b65b93f2 | Gerd Hoffmann | static const MemoryRegionOps piix4_gpe_ops = { |
525 | b65b93f2 | Gerd Hoffmann | .read = gpe_readb, |
526 | b65b93f2 | Gerd Hoffmann | .write = gpe_writeb, |
527 | b65b93f2 | Gerd Hoffmann | .valid.min_access_size = 1,
|
528 | b65b93f2 | Gerd Hoffmann | .valid.max_access_size = 4,
|
529 | b65b93f2 | Gerd Hoffmann | .impl.min_access_size = 1,
|
530 | b65b93f2 | Gerd Hoffmann | .impl.max_access_size = 1,
|
531 | b65b93f2 | Gerd Hoffmann | .endianness = DEVICE_LITTLE_ENDIAN, |
532 | b65b93f2 | Gerd Hoffmann | }; |
533 | b65b93f2 | Gerd Hoffmann | |
534 | ba737541 | Alex Williamson | static uint32_t pci_up_read(void *opaque, uint32_t addr) |
535 | 93d89f63 | Isaku Yamahata | { |
536 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
537 | 7faa8075 | Alex Williamson | uint32_t val; |
538 | 7faa8075 | Alex Williamson | |
539 | 7faa8075 | Alex Williamson | /* Manufacture an "up" value to cause a device check on any hotplug
|
540 | 7faa8075 | Alex Williamson | * slot with a device. Extra device checks are harmless. */
|
541 | 7faa8075 | Alex Williamson | val = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
542 | 93d89f63 | Isaku Yamahata | |
543 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_up_read %x\n", val);
|
544 | 93d89f63 | Isaku Yamahata | return val;
|
545 | 93d89f63 | Isaku Yamahata | } |
546 | 93d89f63 | Isaku Yamahata | |
547 | ba737541 | Alex Williamson | static uint32_t pci_down_read(void *opaque, uint32_t addr) |
548 | 93d89f63 | Isaku Yamahata | { |
549 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
550 | ba737541 | Alex Williamson | uint32_t val = s->pci0_status.down; |
551 | ba737541 | Alex Williamson | |
552 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_down_read %x\n", val);
|
553 | ba737541 | Alex Williamson | return val;
|
554 | 93d89f63 | Isaku Yamahata | } |
555 | 93d89f63 | Isaku Yamahata | |
556 | 9290f364 | Alex Williamson | static uint32_t pci_features_read(void *opaque, uint32_t addr) |
557 | 93d89f63 | Isaku Yamahata | { |
558 | 9290f364 | Alex Williamson | /* No feature defined yet */
|
559 | 9290f364 | Alex Williamson | PIIX4_DPRINTF("pci_features_read %x\n", 0); |
560 | 93d89f63 | Isaku Yamahata | return 0; |
561 | 93d89f63 | Isaku Yamahata | } |
562 | 93d89f63 | Isaku Yamahata | |
563 | 93d89f63 | Isaku Yamahata | static void pciej_write(void *opaque, uint32_t addr, uint32_t val) |
564 | 93d89f63 | Isaku Yamahata | { |
565 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(opaque, val); |
566 | 93d89f63 | Isaku Yamahata | |
567 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pciej write %x <== %d\n", addr, val);
|
568 | 93d89f63 | Isaku Yamahata | } |
569 | 93d89f63 | Isaku Yamahata | |
570 | 668643b0 | Marcelo Tosatti | static uint32_t pcirmv_read(void *opaque, uint32_t addr) |
571 | 668643b0 | Marcelo Tosatti | { |
572 | 668643b0 | Marcelo Tosatti | PIIX4PMState *s = opaque; |
573 | 668643b0 | Marcelo Tosatti | |
574 | 668643b0 | Marcelo Tosatti | return s->pci0_hotplug_enable;
|
575 | 668643b0 | Marcelo Tosatti | } |
576 | 668643b0 | Marcelo Tosatti | |
577 | c177684c | Gerd Hoffmann | static const MemoryRegionOps piix4_pci_ops = { |
578 | c177684c | Gerd Hoffmann | .old_portio = (MemoryRegionPortio[]) { |
579 | c177684c | Gerd Hoffmann | { |
580 | c177684c | Gerd Hoffmann | .offset = PCI_UP_BASE - PCI_HOTPLUG_ADDR, .len = 4, .size = 4, |
581 | c177684c | Gerd Hoffmann | .read = pci_up_read, |
582 | c177684c | Gerd Hoffmann | },{ |
583 | c177684c | Gerd Hoffmann | .offset = PCI_DOWN_BASE - PCI_HOTPLUG_ADDR, .len = 4, .size = 4, |
584 | c177684c | Gerd Hoffmann | .read = pci_down_read, |
585 | c177684c | Gerd Hoffmann | },{ |
586 | c177684c | Gerd Hoffmann | .offset = PCI_EJ_BASE - PCI_HOTPLUG_ADDR, .len = 4, .size = 4, |
587 | c177684c | Gerd Hoffmann | .read = pci_features_read, |
588 | c177684c | Gerd Hoffmann | .write = pciej_write, |
589 | c177684c | Gerd Hoffmann | },{ |
590 | c177684c | Gerd Hoffmann | .offset = PCI_RMV_BASE - PCI_HOTPLUG_ADDR, .len = 4, .size = 4, |
591 | c177684c | Gerd Hoffmann | .read = pcirmv_read, |
592 | c177684c | Gerd Hoffmann | }, |
593 | c177684c | Gerd Hoffmann | PORTIO_END_OF_LIST() |
594 | c177684c | Gerd Hoffmann | }, |
595 | c177684c | Gerd Hoffmann | .endianness = DEVICE_LITTLE_ENDIAN, |
596 | c177684c | Gerd Hoffmann | }; |
597 | c177684c | Gerd Hoffmann | |
598 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
599 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state); |
600 | 93d89f63 | Isaku Yamahata | |
601 | 56e5b2a1 | Gerd Hoffmann | static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, |
602 | 56e5b2a1 | Gerd Hoffmann | PCIBus *bus, PIIX4PMState *s) |
603 | 93d89f63 | Isaku Yamahata | { |
604 | b65b93f2 | Gerd Hoffmann | memory_region_init_io(&s->io_gpe, &piix4_gpe_ops, s, "apci-gpe0",
|
605 | b65b93f2 | Gerd Hoffmann | GPE_LEN); |
606 | 56e5b2a1 | Gerd Hoffmann | memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); |
607 | ac404095 | Isaku Yamahata | |
608 | c177684c | Gerd Hoffmann | memory_region_init_io(&s->io_pci, &piix4_pci_ops, s, "apci-pci-hotplug",
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609 | c177684c | Gerd Hoffmann | PCI_HOTPLUG_SIZE); |
610 | 56e5b2a1 | Gerd Hoffmann | memory_region_add_subregion(parent, PCI_HOTPLUG_ADDR, |
611 | c177684c | Gerd Hoffmann | &s->io_pci); |
612 | ac404095 | Isaku Yamahata | pci_bus_hotplug(bus, piix4_device_hotplug, &s->dev.qdev); |
613 | 93d89f63 | Isaku Yamahata | } |
614 | 93d89f63 | Isaku Yamahata | |
615 | ac404095 | Isaku Yamahata | static void enable_device(PIIX4PMState *s, int slot) |
616 | 93d89f63 | Isaku Yamahata | { |
617 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
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618 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
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619 | 93d89f63 | Isaku Yamahata | } |
620 | 93d89f63 | Isaku Yamahata | |
621 | ac404095 | Isaku Yamahata | static void disable_device(PIIX4PMState *s, int slot) |
622 | 93d89f63 | Isaku Yamahata | { |
623 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
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624 | 7faa8075 | Alex Williamson | s->pci0_status.down |= (1U << slot);
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625 | 93d89f63 | Isaku Yamahata | } |
626 | 93d89f63 | Isaku Yamahata | |
627 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
628 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state) |
629 | 93d89f63 | Isaku Yamahata | { |
630 | 93d89f63 | Isaku Yamahata | int slot = PCI_SLOT(dev->devfn);
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631 | ac404095 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, |
632 | 40021f08 | Anthony Liguori | PCI_DEVICE(qdev)); |
633 | 93d89f63 | Isaku Yamahata | |
634 | 4cff0a59 | Michael S. Tsirkin | /* Don't send event when device is enabled during qemu machine creation:
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635 | 4cff0a59 | Michael S. Tsirkin | * it is present on boot, no hotplug event is necessary. We do send an
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636 | 4cff0a59 | Michael S. Tsirkin | * event when the device is disabled later. */
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637 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_COLDPLUG_ENABLED) {
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638 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
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639 | 5beb8ad5 | Isaku Yamahata | return 0; |
640 | 4cff0a59 | Michael S. Tsirkin | } |
641 | 5beb8ad5 | Isaku Yamahata | |
642 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_HOTPLUG_ENABLED) {
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643 | ac404095 | Isaku Yamahata | enable_device(s, slot); |
644 | ac404095 | Isaku Yamahata | } else {
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645 | ac404095 | Isaku Yamahata | disable_device(s, slot); |
646 | ac404095 | Isaku Yamahata | } |
647 | 633aa0ac | Gleb Natapov | |
648 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
649 | 633aa0ac | Gleb Natapov | |
650 | 93d89f63 | Isaku Yamahata | return 0; |
651 | 93d89f63 | Isaku Yamahata | } |