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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 | 93d89f63 | Isaku Yamahata | #include "pci.h" |
26 | 93d89f63 | Isaku Yamahata | #include "acpi.h" |
27 | 666daa68 | Markus Armbruster | #include "sysemu.h" |
28 | bf1b0071 | Blue Swirl | #include "range.h" |
29 | 6141dbfe | Paolo Bonzini | #include "ioport.h" |
30 | 93d89f63 | Isaku Yamahata | |
31 | 93d89f63 | Isaku Yamahata | //#define DEBUG
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32 | 93d89f63 | Isaku Yamahata | |
33 | 50d8ff8b | Isaku Yamahata | #ifdef DEBUG
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34 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) |
35 | 50d8ff8b | Isaku Yamahata | #else
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36 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) do { } while (0) |
37 | 50d8ff8b | Isaku Yamahata | #endif
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38 | 50d8ff8b | Isaku Yamahata | |
39 | 93d89f63 | Isaku Yamahata | #define ACPI_DBG_IO_ADDR 0xb044 |
40 | 93d89f63 | Isaku Yamahata | |
41 | ac404095 | Isaku Yamahata | #define GPE_BASE 0xafe0 |
42 | 23910d3f | Isaku Yamahata | #define GPE_LEN 4 |
43 | ba737541 | Alex Williamson | #define PCI_UP_BASE 0xae00 |
44 | ba737541 | Alex Williamson | #define PCI_DOWN_BASE 0xae04 |
45 | ac404095 | Isaku Yamahata | #define PCI_EJ_BASE 0xae08 |
46 | 668643b0 | Marcelo Tosatti | #define PCI_RMV_BASE 0xae0c |
47 | ac404095 | Isaku Yamahata | |
48 | 4441a287 | Gleb Natapov | #define PIIX4_PCI_HOTPLUG_STATUS 2 |
49 | 4441a287 | Gleb Natapov | |
50 | ac404095 | Isaku Yamahata | struct pci_status {
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51 | 7faa8075 | Alex Williamson | uint32_t up; /* deprecated, maintained for migration compatibility */
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52 | ac404095 | Isaku Yamahata | uint32_t down; |
53 | ac404095 | Isaku Yamahata | }; |
54 | ac404095 | Isaku Yamahata | |
55 | 93d89f63 | Isaku Yamahata | typedef struct PIIX4PMState { |
56 | 93d89f63 | Isaku Yamahata | PCIDevice dev; |
57 | 2871a3f6 | Avi Kivity | IORange ioport; |
58 | 355bf2e5 | Gerd Hoffmann | ACPIREGS ar; |
59 | 93d89f63 | Isaku Yamahata | |
60 | 93d89f63 | Isaku Yamahata | APMState apm; |
61 | 93d89f63 | Isaku Yamahata | |
62 | 93d89f63 | Isaku Yamahata | PMSMBus smb; |
63 | e8ec0571 | Isaku Yamahata | uint32_t smb_io_base; |
64 | 93d89f63 | Isaku Yamahata | |
65 | 93d89f63 | Isaku Yamahata | qemu_irq irq; |
66 | 93d89f63 | Isaku Yamahata | qemu_irq smi_irq; |
67 | 93d89f63 | Isaku Yamahata | int kvm_enabled;
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68 | 6141dbfe | Paolo Bonzini | Notifier machine_ready; |
69 | ac404095 | Isaku Yamahata | |
70 | ac404095 | Isaku Yamahata | /* for pci hotplug */
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71 | ac404095 | Isaku Yamahata | struct pci_status pci0_status;
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72 | 668643b0 | Marcelo Tosatti | uint32_t pci0_hotplug_enable; |
73 | 7faa8075 | Alex Williamson | uint32_t pci0_slot_device_present; |
74 | 93d89f63 | Isaku Yamahata | } PIIX4PMState; |
75 | 93d89f63 | Isaku Yamahata | |
76 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s); |
77 | ac404095 | Isaku Yamahata | |
78 | 93d89f63 | Isaku Yamahata | #define ACPI_ENABLE 0xf1 |
79 | 93d89f63 | Isaku Yamahata | #define ACPI_DISABLE 0xf0 |
80 | 93d89f63 | Isaku Yamahata | |
81 | 93d89f63 | Isaku Yamahata | static void pm_update_sci(PIIX4PMState *s) |
82 | 93d89f63 | Isaku Yamahata | { |
83 | 93d89f63 | Isaku Yamahata | int sci_level, pmsts;
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84 | 93d89f63 | Isaku Yamahata | |
85 | 2886be1b | Gerd Hoffmann | pmsts = acpi_pm1_evt_get_sts(&s->ar); |
86 | 355bf2e5 | Gerd Hoffmann | sci_level = (((pmsts & s->ar.pm1.evt.en) & |
87 | 93d89f63 | Isaku Yamahata | (ACPI_BITMASK_RT_CLOCK_ENABLE | |
88 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_POWER_BUTTON_ENABLE | |
89 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_GLOBAL_LOCK_ENABLE | |
90 | 633aa0ac | Gleb Natapov | ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
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91 | 355bf2e5 | Gerd Hoffmann | (((s->ar.gpe.sts[0] & s->ar.gpe.en[0]) |
92 | 355bf2e5 | Gerd Hoffmann | & PIIX4_PCI_HOTPLUG_STATUS) != 0);
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93 | 633aa0ac | Gleb Natapov | |
94 | 93d89f63 | Isaku Yamahata | qemu_set_irq(s->irq, sci_level); |
95 | 93d89f63 | Isaku Yamahata | /* schedule a timer interruption if needed */
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96 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && |
97 | a54d41a8 | Isaku Yamahata | !(pmsts & ACPI_BITMASK_TIMER_STATUS)); |
98 | 93d89f63 | Isaku Yamahata | } |
99 | 93d89f63 | Isaku Yamahata | |
100 | 355bf2e5 | Gerd Hoffmann | static void pm_tmr_timer(ACPIREGS *ar) |
101 | 93d89f63 | Isaku Yamahata | { |
102 | 355bf2e5 | Gerd Hoffmann | PIIX4PMState *s = container_of(ar, PIIX4PMState, ar); |
103 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
104 | 93d89f63 | Isaku Yamahata | } |
105 | 93d89f63 | Isaku Yamahata | |
106 | 2871a3f6 | Avi Kivity | static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width, |
107 | 2871a3f6 | Avi Kivity | uint64_t val) |
108 | 93d89f63 | Isaku Yamahata | { |
109 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
110 | 2871a3f6 | Avi Kivity | |
111 | 2871a3f6 | Avi Kivity | if (width != 2) { |
112 | 2871a3f6 | Avi Kivity | PIIX4_DPRINTF("PM write port=0x%04x width=%d val=0x%08x\n",
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113 | 2871a3f6 | Avi Kivity | (unsigned)addr, width, (unsigned)val); |
114 | 2871a3f6 | Avi Kivity | } |
115 | 2871a3f6 | Avi Kivity | |
116 | 93d89f63 | Isaku Yamahata | switch(addr) {
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117 | 93d89f63 | Isaku Yamahata | case 0x00: |
118 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_evt_write_sts(&s->ar, val); |
119 | 04dc308f | Isaku Yamahata | pm_update_sci(s); |
120 | 93d89f63 | Isaku Yamahata | break;
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121 | 93d89f63 | Isaku Yamahata | case 0x02: |
122 | 8283c4f5 | Gerd Hoffmann | acpi_pm1_evt_write_en(&s->ar, val); |
123 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
124 | 93d89f63 | Isaku Yamahata | break;
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125 | 93d89f63 | Isaku Yamahata | case 0x04: |
126 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_cnt_write(&s->ar, val); |
127 | 93d89f63 | Isaku Yamahata | break;
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128 | 93d89f63 | Isaku Yamahata | default:
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129 | 93d89f63 | Isaku Yamahata | break;
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130 | 93d89f63 | Isaku Yamahata | } |
131 | 59df4c11 | Wen Congyang | PIIX4_DPRINTF("PM writew port=0x%04x val=0x%04x\n", (unsigned int)addr, |
132 | 59df4c11 | Wen Congyang | (unsigned int)val); |
133 | 93d89f63 | Isaku Yamahata | } |
134 | 93d89f63 | Isaku Yamahata | |
135 | 2871a3f6 | Avi Kivity | static void pm_ioport_read(IORange *ioport, uint64_t addr, unsigned width, |
136 | 2871a3f6 | Avi Kivity | uint64_t *data) |
137 | 93d89f63 | Isaku Yamahata | { |
138 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
139 | 93d89f63 | Isaku Yamahata | uint32_t val; |
140 | 93d89f63 | Isaku Yamahata | |
141 | 93d89f63 | Isaku Yamahata | switch(addr) {
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142 | 93d89f63 | Isaku Yamahata | case 0x00: |
143 | 2886be1b | Gerd Hoffmann | val = acpi_pm1_evt_get_sts(&s->ar); |
144 | 93d89f63 | Isaku Yamahata | break;
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145 | 93d89f63 | Isaku Yamahata | case 0x02: |
146 | 355bf2e5 | Gerd Hoffmann | val = s->ar.pm1.evt.en; |
147 | 93d89f63 | Isaku Yamahata | break;
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148 | 93d89f63 | Isaku Yamahata | case 0x04: |
149 | 355bf2e5 | Gerd Hoffmann | val = s->ar.pm1.cnt.cnt; |
150 | 93d89f63 | Isaku Yamahata | break;
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151 | 93d89f63 | Isaku Yamahata | case 0x08: |
152 | 355bf2e5 | Gerd Hoffmann | val = acpi_pm_tmr_get(&s->ar); |
153 | 93d89f63 | Isaku Yamahata | break;
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154 | 93d89f63 | Isaku Yamahata | default:
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155 | 93d89f63 | Isaku Yamahata | val = 0;
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156 | 93d89f63 | Isaku Yamahata | break;
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157 | 93d89f63 | Isaku Yamahata | } |
158 | 59df4c11 | Wen Congyang | PIIX4_DPRINTF("PM readw port=0x%04x val=0x%04x\n", (unsigned int)addr, val); |
159 | 2871a3f6 | Avi Kivity | *data = val; |
160 | 93d89f63 | Isaku Yamahata | } |
161 | 93d89f63 | Isaku Yamahata | |
162 | 2871a3f6 | Avi Kivity | static const IORangeOps pm_iorange_ops = { |
163 | 2871a3f6 | Avi Kivity | .read = pm_ioport_read, |
164 | 2871a3f6 | Avi Kivity | .write = pm_ioport_write, |
165 | 2871a3f6 | Avi Kivity | }; |
166 | 2871a3f6 | Avi Kivity | |
167 | 93d89f63 | Isaku Yamahata | static void apm_ctrl_changed(uint32_t val, void *arg) |
168 | 93d89f63 | Isaku Yamahata | { |
169 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = arg; |
170 | 93d89f63 | Isaku Yamahata | |
171 | 93d89f63 | Isaku Yamahata | /* ACPI specs 3.0, 4.7.2.5 */
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172 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE); |
173 | 93d89f63 | Isaku Yamahata | |
174 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x5b] & (1 << 1)) { |
175 | 93d89f63 | Isaku Yamahata | if (s->smi_irq) {
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176 | 93d89f63 | Isaku Yamahata | qemu_irq_raise(s->smi_irq); |
177 | 93d89f63 | Isaku Yamahata | } |
178 | 93d89f63 | Isaku Yamahata | } |
179 | 93d89f63 | Isaku Yamahata | } |
180 | 93d89f63 | Isaku Yamahata | |
181 | 93d89f63 | Isaku Yamahata | static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val) |
182 | 93d89f63 | Isaku Yamahata | { |
183 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("ACPI: DBG: 0x%08x\n", val);
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184 | 93d89f63 | Isaku Yamahata | } |
185 | 93d89f63 | Isaku Yamahata | |
186 | 93d89f63 | Isaku Yamahata | static void pm_io_space_update(PIIX4PMState *s) |
187 | 93d89f63 | Isaku Yamahata | { |
188 | 93d89f63 | Isaku Yamahata | uint32_t pm_io_base; |
189 | 93d89f63 | Isaku Yamahata | |
190 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x80] & 1) { |
191 | 93d89f63 | Isaku Yamahata | pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
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192 | 93d89f63 | Isaku Yamahata | pm_io_base &= 0xffc0;
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193 | 93d89f63 | Isaku Yamahata | |
194 | 93d89f63 | Isaku Yamahata | /* XXX: need to improve memory and ioport allocation */
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195 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("PM: mapping to 0x%x\n", pm_io_base);
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196 | 2871a3f6 | Avi Kivity | iorange_init(&s->ioport, &pm_iorange_ops, pm_io_base, 64);
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197 | 2871a3f6 | Avi Kivity | ioport_register(&s->ioport); |
198 | 93d89f63 | Isaku Yamahata | } |
199 | 93d89f63 | Isaku Yamahata | } |
200 | 93d89f63 | Isaku Yamahata | |
201 | 93d89f63 | Isaku Yamahata | static void pm_write_config(PCIDevice *d, |
202 | 93d89f63 | Isaku Yamahata | uint32_t address, uint32_t val, int len)
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203 | 93d89f63 | Isaku Yamahata | { |
204 | 93d89f63 | Isaku Yamahata | pci_default_write_config(d, address, val, len); |
205 | 93d89f63 | Isaku Yamahata | if (range_covers_byte(address, len, 0x80)) |
206 | 93d89f63 | Isaku Yamahata | pm_io_space_update((PIIX4PMState *)d); |
207 | 93d89f63 | Isaku Yamahata | } |
208 | 93d89f63 | Isaku Yamahata | |
209 | 7faa8075 | Alex Williamson | static void vmstate_pci_status_pre_save(void *opaque) |
210 | 7faa8075 | Alex Williamson | { |
211 | 7faa8075 | Alex Williamson | struct pci_status *pci0_status = opaque;
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212 | 7faa8075 | Alex Williamson | PIIX4PMState *s = container_of(pci0_status, PIIX4PMState, pci0_status); |
213 | 7faa8075 | Alex Williamson | |
214 | 7faa8075 | Alex Williamson | /* We no longer track up, so build a safe value for migrating
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215 | 7faa8075 | Alex Williamson | * to a version that still does... of course these might get lost
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216 | 7faa8075 | Alex Williamson | * by an old buggy implementation, but we try. */
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217 | 7faa8075 | Alex Williamson | pci0_status->up = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
218 | 7faa8075 | Alex Williamson | } |
219 | 7faa8075 | Alex Williamson | |
220 | 93d89f63 | Isaku Yamahata | static int vmstate_acpi_post_load(void *opaque, int version_id) |
221 | 93d89f63 | Isaku Yamahata | { |
222 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
223 | 93d89f63 | Isaku Yamahata | |
224 | 93d89f63 | Isaku Yamahata | pm_io_space_update(s); |
225 | 93d89f63 | Isaku Yamahata | return 0; |
226 | 93d89f63 | Isaku Yamahata | } |
227 | 93d89f63 | Isaku Yamahata | |
228 | 23910d3f | Isaku Yamahata | #define VMSTATE_GPE_ARRAY(_field, _state) \
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229 | 23910d3f | Isaku Yamahata | { \ |
230 | 23910d3f | Isaku Yamahata | .name = (stringify(_field)), \ |
231 | 23910d3f | Isaku Yamahata | .version_id = 0, \
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232 | 23910d3f | Isaku Yamahata | .num = GPE_LEN, \ |
233 | 23910d3f | Isaku Yamahata | .info = &vmstate_info_uint16, \ |
234 | 23910d3f | Isaku Yamahata | .size = sizeof(uint16_t), \
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235 | 23910d3f | Isaku Yamahata | .flags = VMS_ARRAY | VMS_POINTER, \ |
236 | 23910d3f | Isaku Yamahata | .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ |
237 | 23910d3f | Isaku Yamahata | } |
238 | 23910d3f | Isaku Yamahata | |
239 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_gpe = { |
240 | 4cf3e6f3 | Alex Williamson | .name = "gpe",
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241 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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242 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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243 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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244 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
245 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(sts, ACPIGPE), |
246 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(en, ACPIGPE), |
247 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
248 | 4cf3e6f3 | Alex Williamson | } |
249 | 4cf3e6f3 | Alex Williamson | }; |
250 | 4cf3e6f3 | Alex Williamson | |
251 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_pci_status = { |
252 | 4cf3e6f3 | Alex Williamson | .name = "pci_status",
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253 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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254 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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255 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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256 | 7faa8075 | Alex Williamson | .pre_save = vmstate_pci_status_pre_save, |
257 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
258 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(up, struct pci_status),
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259 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(down, struct pci_status),
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260 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
261 | 4cf3e6f3 | Alex Williamson | } |
262 | 4cf3e6f3 | Alex Williamson | }; |
263 | 4cf3e6f3 | Alex Williamson | |
264 | 93d89f63 | Isaku Yamahata | static const VMStateDescription vmstate_acpi = { |
265 | 93d89f63 | Isaku Yamahata | .name = "piix4_pm",
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266 | 4cf3e6f3 | Alex Williamson | .version_id = 2,
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267 | 93d89f63 | Isaku Yamahata | .minimum_version_id = 1,
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268 | 93d89f63 | Isaku Yamahata | .minimum_version_id_old = 1,
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269 | 93d89f63 | Isaku Yamahata | .post_load = vmstate_acpi_post_load, |
270 | 93d89f63 | Isaku Yamahata | .fields = (VMStateField []) { |
271 | 93d89f63 | Isaku Yamahata | VMSTATE_PCI_DEVICE(dev, PIIX4PMState), |
272 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState), |
273 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState), |
274 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState), |
275 | 93d89f63 | Isaku Yamahata | VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
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276 | 355bf2e5 | Gerd Hoffmann | VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState), |
277 | 355bf2e5 | Gerd Hoffmann | VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), |
278 | 355bf2e5 | Gerd Hoffmann | VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
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279 | 4cf3e6f3 | Alex Williamson | VMSTATE_STRUCT(pci0_status, PIIX4PMState, 2, vmstate_pci_status,
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280 | 4cf3e6f3 | Alex Williamson | struct pci_status),
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281 | 93d89f63 | Isaku Yamahata | VMSTATE_END_OF_LIST() |
282 | 93d89f63 | Isaku Yamahata | } |
283 | 93d89f63 | Isaku Yamahata | }; |
284 | 93d89f63 | Isaku Yamahata | |
285 | 7faa8075 | Alex Williamson | static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) |
286 | 7faa8075 | Alex Williamson | { |
287 | 7faa8075 | Alex Williamson | DeviceState *qdev, *next; |
288 | 7faa8075 | Alex Williamson | BusState *bus = qdev_get_parent_bus(&s->dev.qdev); |
289 | 7faa8075 | Alex Williamson | int slot = ffs(slots) - 1; |
290 | 54bfa546 | Michael S. Tsirkin | bool slot_free = true; |
291 | 7faa8075 | Alex Williamson | |
292 | 7faa8075 | Alex Williamson | /* Mark request as complete */
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293 | 7faa8075 | Alex Williamson | s->pci0_status.down &= ~(1U << slot);
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294 | 7faa8075 | Alex Williamson | |
295 | 7faa8075 | Alex Williamson | QTAILQ_FOREACH_SAFE(qdev, &bus->children, sibling, next) { |
296 | 7faa8075 | Alex Williamson | PCIDevice *dev = PCI_DEVICE(qdev); |
297 | 7faa8075 | Alex Williamson | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); |
298 | 54bfa546 | Michael S. Tsirkin | if (PCI_SLOT(dev->devfn) == slot) {
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299 | 54bfa546 | Michael S. Tsirkin | if (pc->no_hotplug) {
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300 | 54bfa546 | Michael S. Tsirkin | slot_free = false;
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301 | 54bfa546 | Michael S. Tsirkin | } else {
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302 | a6de8ed8 | Amos Kong | object_unparent(OBJECT(dev)); |
303 | 54bfa546 | Michael S. Tsirkin | qdev_free(qdev); |
304 | 54bfa546 | Michael S. Tsirkin | } |
305 | 7faa8075 | Alex Williamson | } |
306 | 7faa8075 | Alex Williamson | } |
307 | 54bfa546 | Michael S. Tsirkin | if (slot_free) {
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308 | 54bfa546 | Michael S. Tsirkin | s->pci0_slot_device_present &= ~(1U << slot);
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309 | 54bfa546 | Michael S. Tsirkin | } |
310 | 7faa8075 | Alex Williamson | } |
311 | 7faa8075 | Alex Williamson | |
312 | 668643b0 | Marcelo Tosatti | static void piix4_update_hotplug(PIIX4PMState *s) |
313 | 668643b0 | Marcelo Tosatti | { |
314 | 668643b0 | Marcelo Tosatti | PCIDevice *dev = &s->dev; |
315 | 668643b0 | Marcelo Tosatti | BusState *bus = qdev_get_parent_bus(&dev->qdev); |
316 | 668643b0 | Marcelo Tosatti | DeviceState *qdev, *next; |
317 | 668643b0 | Marcelo Tosatti | |
318 | 7faa8075 | Alex Williamson | /* Execute any pending removes during reset */
|
319 | 7faa8075 | Alex Williamson | while (s->pci0_status.down) {
|
320 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(s, s->pci0_status.down); |
321 | 7faa8075 | Alex Williamson | } |
322 | 7faa8075 | Alex Williamson | |
323 | 668643b0 | Marcelo Tosatti | s->pci0_hotplug_enable = ~0;
|
324 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present = 0;
|
325 | 668643b0 | Marcelo Tosatti | |
326 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH_SAFE(qdev, &bus->children, sibling, next) { |
327 | 40021f08 | Anthony Liguori | PCIDevice *pdev = PCI_DEVICE(qdev); |
328 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev); |
329 | 668643b0 | Marcelo Tosatti | int slot = PCI_SLOT(pdev->devfn);
|
330 | 668643b0 | Marcelo Tosatti | |
331 | 40021f08 | Anthony Liguori | if (pc->no_hotplug) {
|
332 | 7faa8075 | Alex Williamson | s->pci0_hotplug_enable &= ~(1U << slot);
|
333 | 668643b0 | Marcelo Tosatti | } |
334 | 7faa8075 | Alex Williamson | |
335 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
336 | 668643b0 | Marcelo Tosatti | } |
337 | 668643b0 | Marcelo Tosatti | } |
338 | 668643b0 | Marcelo Tosatti | |
339 | 93d89f63 | Isaku Yamahata | static void piix4_reset(void *opaque) |
340 | 93d89f63 | Isaku Yamahata | { |
341 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
342 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf = s->dev.config; |
343 | 93d89f63 | Isaku Yamahata | |
344 | 93d89f63 | Isaku Yamahata | pci_conf[0x58] = 0; |
345 | 93d89f63 | Isaku Yamahata | pci_conf[0x59] = 0; |
346 | 93d89f63 | Isaku Yamahata | pci_conf[0x5a] = 0; |
347 | 93d89f63 | Isaku Yamahata | pci_conf[0x5b] = 0; |
348 | 93d89f63 | Isaku Yamahata | |
349 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
350 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited (until KVM supports SMM). */
|
351 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
352 | 93d89f63 | Isaku Yamahata | } |
353 | 668643b0 | Marcelo Tosatti | piix4_update_hotplug(s); |
354 | 93d89f63 | Isaku Yamahata | } |
355 | 93d89f63 | Isaku Yamahata | |
356 | 93d89f63 | Isaku Yamahata | static void piix4_powerdown(void *opaque, int irq, int power_failing) |
357 | 93d89f63 | Isaku Yamahata | { |
358 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
359 | 93d89f63 | Isaku Yamahata | |
360 | 355bf2e5 | Gerd Hoffmann | assert(s != NULL);
|
361 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_evt_power_down(&s->ar); |
362 | 93d89f63 | Isaku Yamahata | } |
363 | 93d89f63 | Isaku Yamahata | |
364 | 9e8dd451 | Jan Kiszka | static void piix4_pm_machine_ready(Notifier *n, void *opaque) |
365 | 6141dbfe | Paolo Bonzini | { |
366 | 6141dbfe | Paolo Bonzini | PIIX4PMState *s = container_of(n, PIIX4PMState, machine_ready); |
367 | 6141dbfe | Paolo Bonzini | uint8_t *pci_conf; |
368 | 6141dbfe | Paolo Bonzini | |
369 | 6141dbfe | Paolo Bonzini | pci_conf = s->dev.config; |
370 | 6141dbfe | Paolo Bonzini | pci_conf[0x5f] = (isa_is_ioport_assigned(0x378) ? 0x80 : 0) | 0x10; |
371 | 6141dbfe | Paolo Bonzini | pci_conf[0x63] = 0x60; |
372 | 6141dbfe | Paolo Bonzini | pci_conf[0x67] = (isa_is_ioport_assigned(0x3f8) ? 0x08 : 0) | |
373 | 6141dbfe | Paolo Bonzini | (isa_is_ioport_assigned(0x2f8) ? 0x90 : 0); |
374 | 6141dbfe | Paolo Bonzini | |
375 | 6141dbfe | Paolo Bonzini | } |
376 | 6141dbfe | Paolo Bonzini | |
377 | e8ec0571 | Isaku Yamahata | static int piix4_pm_initfn(PCIDevice *dev) |
378 | 93d89f63 | Isaku Yamahata | { |
379 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, dev); |
380 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf; |
381 | 93d89f63 | Isaku Yamahata | |
382 | 93d89f63 | Isaku Yamahata | pci_conf = s->dev.config; |
383 | 93d89f63 | Isaku Yamahata | pci_conf[0x06] = 0x80; |
384 | 93d89f63 | Isaku Yamahata | pci_conf[0x07] = 0x02; |
385 | 93d89f63 | Isaku Yamahata | pci_conf[0x09] = 0x00; |
386 | 93d89f63 | Isaku Yamahata | pci_conf[0x3d] = 0x01; // interrupt pin 1 |
387 | 93d89f63 | Isaku Yamahata | |
388 | 93d89f63 | Isaku Yamahata | pci_conf[0x40] = 0x01; /* PM io base read only bit */ |
389 | 93d89f63 | Isaku Yamahata | |
390 | 93d89f63 | Isaku Yamahata | /* APM */
|
391 | 93d89f63 | Isaku Yamahata | apm_init(&s->apm, apm_ctrl_changed, s); |
392 | 93d89f63 | Isaku Yamahata | |
393 | 93d89f63 | Isaku Yamahata | register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s); |
394 | 93d89f63 | Isaku Yamahata | |
395 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
396 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited to prevent SMM from running. KVM does not
|
397 | 93d89f63 | Isaku Yamahata | * support SMM mode. */
|
398 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
399 | 93d89f63 | Isaku Yamahata | } |
400 | 93d89f63 | Isaku Yamahata | |
401 | 93d89f63 | Isaku Yamahata | /* XXX: which specification is used ? The i82731AB has different
|
402 | 93d89f63 | Isaku Yamahata | mappings */
|
403 | e8ec0571 | Isaku Yamahata | pci_conf[0x90] = s->smb_io_base | 1; |
404 | e8ec0571 | Isaku Yamahata | pci_conf[0x91] = s->smb_io_base >> 8; |
405 | 93d89f63 | Isaku Yamahata | pci_conf[0xd2] = 0x09; |
406 | e8ec0571 | Isaku Yamahata | register_ioport_write(s->smb_io_base, 64, 1, smb_ioport_writeb, &s->smb); |
407 | e8ec0571 | Isaku Yamahata | register_ioport_read(s->smb_io_base, 64, 1, smb_ioport_readb, &s->smb); |
408 | 93d89f63 | Isaku Yamahata | |
409 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_init(&s->ar, pm_tmr_timer); |
410 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_init(&s->ar, GPE_LEN); |
411 | 93d89f63 | Isaku Yamahata | |
412 | 93d89f63 | Isaku Yamahata | qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1);
|
413 | 93d89f63 | Isaku Yamahata | |
414 | e8ec0571 | Isaku Yamahata | pm_smbus_init(&s->dev.qdev, &s->smb); |
415 | 6141dbfe | Paolo Bonzini | s->machine_ready.notify = piix4_pm_machine_ready; |
416 | 6141dbfe | Paolo Bonzini | qemu_add_machine_init_done_notifier(&s->machine_ready); |
417 | e8ec0571 | Isaku Yamahata | qemu_register_reset(piix4_reset, s); |
418 | ac404095 | Isaku Yamahata | piix4_acpi_system_hot_add_init(dev->bus, s); |
419 | e8ec0571 | Isaku Yamahata | |
420 | e8ec0571 | Isaku Yamahata | return 0; |
421 | e8ec0571 | Isaku Yamahata | } |
422 | e8ec0571 | Isaku Yamahata | |
423 | e8ec0571 | Isaku Yamahata | i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
|
424 | da98c8eb | Gerd Hoffmann | qemu_irq sci_irq, qemu_irq smi_irq, |
425 | e8ec0571 | Isaku Yamahata | int kvm_enabled)
|
426 | e8ec0571 | Isaku Yamahata | { |
427 | e8ec0571 | Isaku Yamahata | PCIDevice *dev; |
428 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s; |
429 | e8ec0571 | Isaku Yamahata | |
430 | e8ec0571 | Isaku Yamahata | dev = pci_create(bus, devfn, "PIIX4_PM");
|
431 | e8ec0571 | Isaku Yamahata | qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
|
432 | 93d89f63 | Isaku Yamahata | |
433 | e8ec0571 | Isaku Yamahata | s = DO_UPCAST(PIIX4PMState, dev, dev); |
434 | 93d89f63 | Isaku Yamahata | s->irq = sci_irq; |
435 | da98c8eb | Gerd Hoffmann | acpi_pm1_cnt_init(&s->ar); |
436 | 93d89f63 | Isaku Yamahata | s->smi_irq = smi_irq; |
437 | e8ec0571 | Isaku Yamahata | s->kvm_enabled = kvm_enabled; |
438 | e8ec0571 | Isaku Yamahata | |
439 | e8ec0571 | Isaku Yamahata | qdev_init_nofail(&dev->qdev); |
440 | 93d89f63 | Isaku Yamahata | |
441 | 93d89f63 | Isaku Yamahata | return s->smb.smbus;
|
442 | 93d89f63 | Isaku Yamahata | } |
443 | 93d89f63 | Isaku Yamahata | |
444 | 40021f08 | Anthony Liguori | static Property piix4_pm_properties[] = {
|
445 | 40021f08 | Anthony Liguori | DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), |
446 | 40021f08 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
447 | 40021f08 | Anthony Liguori | }; |
448 | 40021f08 | Anthony Liguori | |
449 | 40021f08 | Anthony Liguori | static void piix4_pm_class_init(ObjectClass *klass, void *data) |
450 | 40021f08 | Anthony Liguori | { |
451 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
452 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
453 | 40021f08 | Anthony Liguori | |
454 | 40021f08 | Anthony Liguori | k->no_hotplug = 1;
|
455 | 40021f08 | Anthony Liguori | k->init = piix4_pm_initfn; |
456 | 40021f08 | Anthony Liguori | k->config_write = pm_write_config; |
457 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_INTEL; |
458 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; |
459 | 40021f08 | Anthony Liguori | k->revision = 0x03;
|
460 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_OTHER; |
461 | 39bffca2 | Anthony Liguori | dc->desc = "PM";
|
462 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
463 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_acpi; |
464 | 39bffca2 | Anthony Liguori | dc->props = piix4_pm_properties; |
465 | 40021f08 | Anthony Liguori | } |
466 | 40021f08 | Anthony Liguori | |
467 | 39bffca2 | Anthony Liguori | static TypeInfo piix4_pm_info = {
|
468 | 39bffca2 | Anthony Liguori | .name = "PIIX4_PM",
|
469 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
470 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PIIX4PMState),
|
471 | 39bffca2 | Anthony Liguori | .class_init = piix4_pm_class_init, |
472 | e8ec0571 | Isaku Yamahata | }; |
473 | e8ec0571 | Isaku Yamahata | |
474 | 83f7d43a | Andreas Färber | static void piix4_pm_register_types(void) |
475 | e8ec0571 | Isaku Yamahata | { |
476 | 39bffca2 | Anthony Liguori | type_register_static(&piix4_pm_info); |
477 | e8ec0571 | Isaku Yamahata | } |
478 | e8ec0571 | Isaku Yamahata | |
479 | 83f7d43a | Andreas Färber | type_init(piix4_pm_register_types) |
480 | e8ec0571 | Isaku Yamahata | |
481 | 93d89f63 | Isaku Yamahata | static uint32_t gpe_readb(void *opaque, uint32_t addr) |
482 | 93d89f63 | Isaku Yamahata | { |
483 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
484 | 355bf2e5 | Gerd Hoffmann | uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr); |
485 | 93d89f63 | Isaku Yamahata | |
486 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe read %x == %x\n", addr, val);
|
487 | 93d89f63 | Isaku Yamahata | return val;
|
488 | 93d89f63 | Isaku Yamahata | } |
489 | 93d89f63 | Isaku Yamahata | |
490 | 93d89f63 | Isaku Yamahata | static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val) |
491 | 93d89f63 | Isaku Yamahata | { |
492 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
493 | 633aa0ac | Gleb Natapov | |
494 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_ioport_writeb(&s->ar, addr, val); |
495 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
496 | 93d89f63 | Isaku Yamahata | |
497 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe write %x <== %d\n", addr, val);
|
498 | 93d89f63 | Isaku Yamahata | } |
499 | 93d89f63 | Isaku Yamahata | |
500 | ba737541 | Alex Williamson | static uint32_t pci_up_read(void *opaque, uint32_t addr) |
501 | 93d89f63 | Isaku Yamahata | { |
502 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
503 | 7faa8075 | Alex Williamson | uint32_t val; |
504 | 7faa8075 | Alex Williamson | |
505 | 7faa8075 | Alex Williamson | /* Manufacture an "up" value to cause a device check on any hotplug
|
506 | 7faa8075 | Alex Williamson | * slot with a device. Extra device checks are harmless. */
|
507 | 7faa8075 | Alex Williamson | val = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
508 | 93d89f63 | Isaku Yamahata | |
509 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_up_read %x\n", val);
|
510 | 93d89f63 | Isaku Yamahata | return val;
|
511 | 93d89f63 | Isaku Yamahata | } |
512 | 93d89f63 | Isaku Yamahata | |
513 | ba737541 | Alex Williamson | static uint32_t pci_down_read(void *opaque, uint32_t addr) |
514 | 93d89f63 | Isaku Yamahata | { |
515 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
516 | ba737541 | Alex Williamson | uint32_t val = s->pci0_status.down; |
517 | ba737541 | Alex Williamson | |
518 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_down_read %x\n", val);
|
519 | ba737541 | Alex Williamson | return val;
|
520 | 93d89f63 | Isaku Yamahata | } |
521 | 93d89f63 | Isaku Yamahata | |
522 | 9290f364 | Alex Williamson | static uint32_t pci_features_read(void *opaque, uint32_t addr) |
523 | 93d89f63 | Isaku Yamahata | { |
524 | 9290f364 | Alex Williamson | /* No feature defined yet */
|
525 | 9290f364 | Alex Williamson | PIIX4_DPRINTF("pci_features_read %x\n", 0); |
526 | 93d89f63 | Isaku Yamahata | return 0; |
527 | 93d89f63 | Isaku Yamahata | } |
528 | 93d89f63 | Isaku Yamahata | |
529 | 93d89f63 | Isaku Yamahata | static void pciej_write(void *opaque, uint32_t addr, uint32_t val) |
530 | 93d89f63 | Isaku Yamahata | { |
531 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(opaque, val); |
532 | 93d89f63 | Isaku Yamahata | |
533 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pciej write %x <== %d\n", addr, val);
|
534 | 93d89f63 | Isaku Yamahata | } |
535 | 93d89f63 | Isaku Yamahata | |
536 | 668643b0 | Marcelo Tosatti | static uint32_t pcirmv_read(void *opaque, uint32_t addr) |
537 | 668643b0 | Marcelo Tosatti | { |
538 | 668643b0 | Marcelo Tosatti | PIIX4PMState *s = opaque; |
539 | 668643b0 | Marcelo Tosatti | |
540 | 668643b0 | Marcelo Tosatti | return s->pci0_hotplug_enable;
|
541 | 668643b0 | Marcelo Tosatti | } |
542 | 668643b0 | Marcelo Tosatti | |
543 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
544 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state); |
545 | 93d89f63 | Isaku Yamahata | |
546 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s) |
547 | 93d89f63 | Isaku Yamahata | { |
548 | 93d89f63 | Isaku Yamahata | |
549 | 23910d3f | Isaku Yamahata | register_ioport_write(GPE_BASE, GPE_LEN, 1, gpe_writeb, s);
|
550 | 23910d3f | Isaku Yamahata | register_ioport_read(GPE_BASE, GPE_LEN, 1, gpe_readb, s);
|
551 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_blk(&s->ar, GPE_BASE); |
552 | ac404095 | Isaku Yamahata | |
553 | ba737541 | Alex Williamson | register_ioport_read(PCI_UP_BASE, 4, 4, pci_up_read, s); |
554 | ba737541 | Alex Williamson | register_ioport_read(PCI_DOWN_BASE, 4, 4, pci_down_read, s); |
555 | 93d89f63 | Isaku Yamahata | |
556 | 7faa8075 | Alex Williamson | register_ioport_write(PCI_EJ_BASE, 4, 4, pciej_write, s); |
557 | 9290f364 | Alex Williamson | register_ioport_read(PCI_EJ_BASE, 4, 4, pci_features_read, s); |
558 | 93d89f63 | Isaku Yamahata | |
559 | 668643b0 | Marcelo Tosatti | register_ioport_read(PCI_RMV_BASE, 4, 4, pcirmv_read, s); |
560 | 668643b0 | Marcelo Tosatti | |
561 | ac404095 | Isaku Yamahata | pci_bus_hotplug(bus, piix4_device_hotplug, &s->dev.qdev); |
562 | 93d89f63 | Isaku Yamahata | } |
563 | 93d89f63 | Isaku Yamahata | |
564 | ac404095 | Isaku Yamahata | static void enable_device(PIIX4PMState *s, int slot) |
565 | 93d89f63 | Isaku Yamahata | { |
566 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
|
567 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
568 | 93d89f63 | Isaku Yamahata | } |
569 | 93d89f63 | Isaku Yamahata | |
570 | ac404095 | Isaku Yamahata | static void disable_device(PIIX4PMState *s, int slot) |
571 | 93d89f63 | Isaku Yamahata | { |
572 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
|
573 | 7faa8075 | Alex Williamson | s->pci0_status.down |= (1U << slot);
|
574 | 93d89f63 | Isaku Yamahata | } |
575 | 93d89f63 | Isaku Yamahata | |
576 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
577 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state) |
578 | 93d89f63 | Isaku Yamahata | { |
579 | 93d89f63 | Isaku Yamahata | int slot = PCI_SLOT(dev->devfn);
|
580 | ac404095 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, |
581 | 40021f08 | Anthony Liguori | PCI_DEVICE(qdev)); |
582 | 93d89f63 | Isaku Yamahata | |
583 | 4cff0a59 | Michael S. Tsirkin | /* Don't send event when device is enabled during qemu machine creation:
|
584 | 4cff0a59 | Michael S. Tsirkin | * it is present on boot, no hotplug event is necessary. We do send an
|
585 | 4cff0a59 | Michael S. Tsirkin | * event when the device is disabled later. */
|
586 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_COLDPLUG_ENABLED) {
|
587 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
588 | 5beb8ad5 | Isaku Yamahata | return 0; |
589 | 4cff0a59 | Michael S. Tsirkin | } |
590 | 5beb8ad5 | Isaku Yamahata | |
591 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_HOTPLUG_ENABLED) {
|
592 | ac404095 | Isaku Yamahata | enable_device(s, slot); |
593 | ac404095 | Isaku Yamahata | } else {
|
594 | ac404095 | Isaku Yamahata | disable_device(s, slot); |
595 | ac404095 | Isaku Yamahata | } |
596 | 633aa0ac | Gleb Natapov | |
597 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
598 | 633aa0ac | Gleb Natapov | |
599 | 93d89f63 | Isaku Yamahata | return 0; |
600 | 93d89f63 | Isaku Yamahata | } |