root / hw / acpi_piix4.c @ 3627757e
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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 | 459ae5ea | Gleb Natapov | #include "fw_cfg.h" |
31 | 93d89f63 | Isaku Yamahata | |
32 | 93d89f63 | Isaku Yamahata | //#define DEBUG
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33 | 93d89f63 | Isaku Yamahata | |
34 | 50d8ff8b | Isaku Yamahata | #ifdef DEBUG
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35 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) |
36 | 50d8ff8b | Isaku Yamahata | #else
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37 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) do { } while (0) |
38 | 50d8ff8b | Isaku Yamahata | #endif
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39 | 50d8ff8b | Isaku Yamahata | |
40 | 93d89f63 | Isaku Yamahata | #define ACPI_DBG_IO_ADDR 0xb044 |
41 | 93d89f63 | Isaku Yamahata | |
42 | ac404095 | Isaku Yamahata | #define GPE_BASE 0xafe0 |
43 | 23910d3f | Isaku Yamahata | #define GPE_LEN 4 |
44 | ba737541 | Alex Williamson | #define PCI_UP_BASE 0xae00 |
45 | ba737541 | Alex Williamson | #define PCI_DOWN_BASE 0xae04 |
46 | ac404095 | Isaku Yamahata | #define PCI_EJ_BASE 0xae08 |
47 | 668643b0 | Marcelo Tosatti | #define PCI_RMV_BASE 0xae0c |
48 | ac404095 | Isaku Yamahata | |
49 | 4441a287 | Gleb Natapov | #define PIIX4_PCI_HOTPLUG_STATUS 2 |
50 | 4441a287 | Gleb Natapov | |
51 | ac404095 | Isaku Yamahata | struct pci_status {
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52 | 7faa8075 | Alex Williamson | uint32_t up; /* deprecated, maintained for migration compatibility */
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53 | ac404095 | Isaku Yamahata | uint32_t down; |
54 | ac404095 | Isaku Yamahata | }; |
55 | ac404095 | Isaku Yamahata | |
56 | 93d89f63 | Isaku Yamahata | typedef struct PIIX4PMState { |
57 | 93d89f63 | Isaku Yamahata | PCIDevice dev; |
58 | 2871a3f6 | Avi Kivity | IORange ioport; |
59 | 355bf2e5 | Gerd Hoffmann | ACPIREGS ar; |
60 | 93d89f63 | Isaku Yamahata | |
61 | 93d89f63 | Isaku Yamahata | APMState apm; |
62 | 93d89f63 | Isaku Yamahata | |
63 | 93d89f63 | Isaku Yamahata | PMSMBus smb; |
64 | e8ec0571 | Isaku Yamahata | uint32_t smb_io_base; |
65 | 93d89f63 | Isaku Yamahata | |
66 | 93d89f63 | Isaku Yamahata | qemu_irq irq; |
67 | 93d89f63 | Isaku Yamahata | qemu_irq smi_irq; |
68 | 93d89f63 | Isaku Yamahata | int kvm_enabled;
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69 | 6141dbfe | Paolo Bonzini | Notifier machine_ready; |
70 | ac404095 | Isaku Yamahata | |
71 | ac404095 | Isaku Yamahata | /* for pci hotplug */
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72 | ac404095 | Isaku Yamahata | struct pci_status pci0_status;
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73 | 668643b0 | Marcelo Tosatti | uint32_t pci0_hotplug_enable; |
74 | 7faa8075 | Alex Williamson | uint32_t pci0_slot_device_present; |
75 | 459ae5ea | Gleb Natapov | |
76 | 459ae5ea | Gleb Natapov | uint8_t disable_s3; |
77 | 459ae5ea | Gleb Natapov | uint8_t disable_s4; |
78 | 459ae5ea | Gleb Natapov | uint8_t s4_val; |
79 | 93d89f63 | Isaku Yamahata | } PIIX4PMState; |
80 | 93d89f63 | Isaku Yamahata | |
81 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s); |
82 | ac404095 | Isaku Yamahata | |
83 | 93d89f63 | Isaku Yamahata | #define ACPI_ENABLE 0xf1 |
84 | 93d89f63 | Isaku Yamahata | #define ACPI_DISABLE 0xf0 |
85 | 93d89f63 | Isaku Yamahata | |
86 | 93d89f63 | Isaku Yamahata | static void pm_update_sci(PIIX4PMState *s) |
87 | 93d89f63 | Isaku Yamahata | { |
88 | 93d89f63 | Isaku Yamahata | int sci_level, pmsts;
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89 | 93d89f63 | Isaku Yamahata | |
90 | 2886be1b | Gerd Hoffmann | pmsts = acpi_pm1_evt_get_sts(&s->ar); |
91 | 355bf2e5 | Gerd Hoffmann | sci_level = (((pmsts & s->ar.pm1.evt.en) & |
92 | 93d89f63 | Isaku Yamahata | (ACPI_BITMASK_RT_CLOCK_ENABLE | |
93 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_POWER_BUTTON_ENABLE | |
94 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_GLOBAL_LOCK_ENABLE | |
95 | 633aa0ac | Gleb Natapov | ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
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96 | 355bf2e5 | Gerd Hoffmann | (((s->ar.gpe.sts[0] & s->ar.gpe.en[0]) |
97 | 355bf2e5 | Gerd Hoffmann | & PIIX4_PCI_HOTPLUG_STATUS) != 0);
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98 | 633aa0ac | Gleb Natapov | |
99 | 93d89f63 | Isaku Yamahata | qemu_set_irq(s->irq, sci_level); |
100 | 93d89f63 | Isaku Yamahata | /* schedule a timer interruption if needed */
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101 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && |
102 | a54d41a8 | Isaku Yamahata | !(pmsts & ACPI_BITMASK_TIMER_STATUS)); |
103 | 93d89f63 | Isaku Yamahata | } |
104 | 93d89f63 | Isaku Yamahata | |
105 | 355bf2e5 | Gerd Hoffmann | static void pm_tmr_timer(ACPIREGS *ar) |
106 | 93d89f63 | Isaku Yamahata | { |
107 | 355bf2e5 | Gerd Hoffmann | PIIX4PMState *s = container_of(ar, PIIX4PMState, ar); |
108 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
109 | 93d89f63 | Isaku Yamahata | } |
110 | 93d89f63 | Isaku Yamahata | |
111 | 2871a3f6 | Avi Kivity | static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width, |
112 | 2871a3f6 | Avi Kivity | uint64_t val) |
113 | 93d89f63 | Isaku Yamahata | { |
114 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
115 | 2871a3f6 | Avi Kivity | |
116 | 2871a3f6 | Avi Kivity | if (width != 2) { |
117 | 2871a3f6 | Avi Kivity | PIIX4_DPRINTF("PM write port=0x%04x width=%d val=0x%08x\n",
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118 | 2871a3f6 | Avi Kivity | (unsigned)addr, width, (unsigned)val); |
119 | 2871a3f6 | Avi Kivity | } |
120 | 2871a3f6 | Avi Kivity | |
121 | 93d89f63 | Isaku Yamahata | switch(addr) {
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122 | 93d89f63 | Isaku Yamahata | case 0x00: |
123 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_evt_write_sts(&s->ar, val); |
124 | 04dc308f | Isaku Yamahata | pm_update_sci(s); |
125 | 93d89f63 | Isaku Yamahata | break;
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126 | 93d89f63 | Isaku Yamahata | case 0x02: |
127 | 8283c4f5 | Gerd Hoffmann | acpi_pm1_evt_write_en(&s->ar, val); |
128 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
129 | 93d89f63 | Isaku Yamahata | break;
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130 | 93d89f63 | Isaku Yamahata | case 0x04: |
131 | 459ae5ea | Gleb Natapov | acpi_pm1_cnt_write(&s->ar, val, s->s4_val); |
132 | 93d89f63 | Isaku Yamahata | break;
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133 | 93d89f63 | Isaku Yamahata | default:
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134 | 93d89f63 | Isaku Yamahata | break;
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135 | 93d89f63 | Isaku Yamahata | } |
136 | 59df4c11 | Wen Congyang | PIIX4_DPRINTF("PM writew port=0x%04x val=0x%04x\n", (unsigned int)addr, |
137 | 59df4c11 | Wen Congyang | (unsigned int)val); |
138 | 93d89f63 | Isaku Yamahata | } |
139 | 93d89f63 | Isaku Yamahata | |
140 | 2871a3f6 | Avi Kivity | static void pm_ioport_read(IORange *ioport, uint64_t addr, unsigned width, |
141 | 2871a3f6 | Avi Kivity | uint64_t *data) |
142 | 93d89f63 | Isaku Yamahata | { |
143 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
144 | 93d89f63 | Isaku Yamahata | uint32_t val; |
145 | 93d89f63 | Isaku Yamahata | |
146 | 93d89f63 | Isaku Yamahata | switch(addr) {
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147 | 93d89f63 | Isaku Yamahata | case 0x00: |
148 | 2886be1b | Gerd Hoffmann | val = acpi_pm1_evt_get_sts(&s->ar); |
149 | 93d89f63 | Isaku Yamahata | break;
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150 | 93d89f63 | Isaku Yamahata | case 0x02: |
151 | 355bf2e5 | Gerd Hoffmann | val = s->ar.pm1.evt.en; |
152 | 93d89f63 | Isaku Yamahata | break;
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153 | 93d89f63 | Isaku Yamahata | case 0x04: |
154 | 355bf2e5 | Gerd Hoffmann | val = s->ar.pm1.cnt.cnt; |
155 | 93d89f63 | Isaku Yamahata | break;
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156 | 93d89f63 | Isaku Yamahata | case 0x08: |
157 | 355bf2e5 | Gerd Hoffmann | val = acpi_pm_tmr_get(&s->ar); |
158 | 93d89f63 | Isaku Yamahata | break;
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159 | 93d89f63 | Isaku Yamahata | default:
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160 | 93d89f63 | Isaku Yamahata | val = 0;
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161 | 93d89f63 | Isaku Yamahata | break;
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162 | 93d89f63 | Isaku Yamahata | } |
163 | 59df4c11 | Wen Congyang | PIIX4_DPRINTF("PM readw port=0x%04x val=0x%04x\n", (unsigned int)addr, val); |
164 | 2871a3f6 | Avi Kivity | *data = val; |
165 | 93d89f63 | Isaku Yamahata | } |
166 | 93d89f63 | Isaku Yamahata | |
167 | 2871a3f6 | Avi Kivity | static const IORangeOps pm_iorange_ops = { |
168 | 2871a3f6 | Avi Kivity | .read = pm_ioport_read, |
169 | 2871a3f6 | Avi Kivity | .write = pm_ioport_write, |
170 | 2871a3f6 | Avi Kivity | }; |
171 | 2871a3f6 | Avi Kivity | |
172 | 93d89f63 | Isaku Yamahata | static void apm_ctrl_changed(uint32_t val, void *arg) |
173 | 93d89f63 | Isaku Yamahata | { |
174 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = arg; |
175 | 93d89f63 | Isaku Yamahata | |
176 | 93d89f63 | Isaku Yamahata | /* ACPI specs 3.0, 4.7.2.5 */
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177 | 355bf2e5 | Gerd Hoffmann | acpi_pm1_cnt_update(&s->ar, val == ACPI_ENABLE, val == ACPI_DISABLE); |
178 | 93d89f63 | Isaku Yamahata | |
179 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x5b] & (1 << 1)) { |
180 | 93d89f63 | Isaku Yamahata | if (s->smi_irq) {
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181 | 93d89f63 | Isaku Yamahata | qemu_irq_raise(s->smi_irq); |
182 | 93d89f63 | Isaku Yamahata | } |
183 | 93d89f63 | Isaku Yamahata | } |
184 | 93d89f63 | Isaku Yamahata | } |
185 | 93d89f63 | Isaku Yamahata | |
186 | 93d89f63 | Isaku Yamahata | static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val) |
187 | 93d89f63 | Isaku Yamahata | { |
188 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("ACPI: DBG: 0x%08x\n", val);
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189 | 93d89f63 | Isaku Yamahata | } |
190 | 93d89f63 | Isaku Yamahata | |
191 | 93d89f63 | Isaku Yamahata | static void pm_io_space_update(PIIX4PMState *s) |
192 | 93d89f63 | Isaku Yamahata | { |
193 | 93d89f63 | Isaku Yamahata | uint32_t pm_io_base; |
194 | 93d89f63 | Isaku Yamahata | |
195 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x80] & 1) { |
196 | 93d89f63 | Isaku Yamahata | pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
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197 | 93d89f63 | Isaku Yamahata | pm_io_base &= 0xffc0;
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198 | 93d89f63 | Isaku Yamahata | |
199 | 93d89f63 | Isaku Yamahata | /* XXX: need to improve memory and ioport allocation */
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200 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("PM: mapping to 0x%x\n", pm_io_base);
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201 | 2871a3f6 | Avi Kivity | iorange_init(&s->ioport, &pm_iorange_ops, pm_io_base, 64);
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202 | 2871a3f6 | Avi Kivity | ioport_register(&s->ioport); |
203 | 93d89f63 | Isaku Yamahata | } |
204 | 93d89f63 | Isaku Yamahata | } |
205 | 93d89f63 | Isaku Yamahata | |
206 | 93d89f63 | Isaku Yamahata | static void pm_write_config(PCIDevice *d, |
207 | 93d89f63 | Isaku Yamahata | uint32_t address, uint32_t val, int len)
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208 | 93d89f63 | Isaku Yamahata | { |
209 | 93d89f63 | Isaku Yamahata | pci_default_write_config(d, address, val, len); |
210 | 93d89f63 | Isaku Yamahata | if (range_covers_byte(address, len, 0x80)) |
211 | 93d89f63 | Isaku Yamahata | pm_io_space_update((PIIX4PMState *)d); |
212 | 93d89f63 | Isaku Yamahata | } |
213 | 93d89f63 | Isaku Yamahata | |
214 | 7faa8075 | Alex Williamson | static void vmstate_pci_status_pre_save(void *opaque) |
215 | 7faa8075 | Alex Williamson | { |
216 | 7faa8075 | Alex Williamson | struct pci_status *pci0_status = opaque;
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217 | 7faa8075 | Alex Williamson | PIIX4PMState *s = container_of(pci0_status, PIIX4PMState, pci0_status); |
218 | 7faa8075 | Alex Williamson | |
219 | 7faa8075 | Alex Williamson | /* We no longer track up, so build a safe value for migrating
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220 | 7faa8075 | Alex Williamson | * to a version that still does... of course these might get lost
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221 | 7faa8075 | Alex Williamson | * by an old buggy implementation, but we try. */
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222 | 7faa8075 | Alex Williamson | pci0_status->up = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
223 | 7faa8075 | Alex Williamson | } |
224 | 7faa8075 | Alex Williamson | |
225 | 93d89f63 | Isaku Yamahata | static int vmstate_acpi_post_load(void *opaque, int version_id) |
226 | 93d89f63 | Isaku Yamahata | { |
227 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
228 | 93d89f63 | Isaku Yamahata | |
229 | 93d89f63 | Isaku Yamahata | pm_io_space_update(s); |
230 | 93d89f63 | Isaku Yamahata | return 0; |
231 | 93d89f63 | Isaku Yamahata | } |
232 | 93d89f63 | Isaku Yamahata | |
233 | 23910d3f | Isaku Yamahata | #define VMSTATE_GPE_ARRAY(_field, _state) \
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234 | 23910d3f | Isaku Yamahata | { \ |
235 | 23910d3f | Isaku Yamahata | .name = (stringify(_field)), \ |
236 | 23910d3f | Isaku Yamahata | .version_id = 0, \
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237 | 23910d3f | Isaku Yamahata | .num = GPE_LEN, \ |
238 | 23910d3f | Isaku Yamahata | .info = &vmstate_info_uint16, \ |
239 | 23910d3f | Isaku Yamahata | .size = sizeof(uint16_t), \
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240 | 23910d3f | Isaku Yamahata | .flags = VMS_ARRAY | VMS_POINTER, \ |
241 | 23910d3f | Isaku Yamahata | .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ |
242 | 23910d3f | Isaku Yamahata | } |
243 | 23910d3f | Isaku Yamahata | |
244 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_gpe = { |
245 | 4cf3e6f3 | Alex Williamson | .name = "gpe",
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246 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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247 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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248 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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249 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
250 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(sts, ACPIGPE), |
251 | 23910d3f | Isaku Yamahata | VMSTATE_GPE_ARRAY(en, ACPIGPE), |
252 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
253 | 4cf3e6f3 | Alex Williamson | } |
254 | 4cf3e6f3 | Alex Williamson | }; |
255 | 4cf3e6f3 | Alex Williamson | |
256 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_pci_status = { |
257 | 4cf3e6f3 | Alex Williamson | .name = "pci_status",
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258 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
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259 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
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260 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
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261 | 7faa8075 | Alex Williamson | .pre_save = vmstate_pci_status_pre_save, |
262 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
263 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(up, struct pci_status),
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264 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(down, struct pci_status),
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265 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
266 | 4cf3e6f3 | Alex Williamson | } |
267 | 4cf3e6f3 | Alex Williamson | }; |
268 | 4cf3e6f3 | Alex Williamson | |
269 | 93d89f63 | Isaku Yamahata | static const VMStateDescription vmstate_acpi = { |
270 | 93d89f63 | Isaku Yamahata | .name = "piix4_pm",
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271 | 4cf3e6f3 | Alex Williamson | .version_id = 2,
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272 | 93d89f63 | Isaku Yamahata | .minimum_version_id = 1,
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273 | 93d89f63 | Isaku Yamahata | .minimum_version_id_old = 1,
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274 | 93d89f63 | Isaku Yamahata | .post_load = vmstate_acpi_post_load, |
275 | 93d89f63 | Isaku Yamahata | .fields = (VMStateField []) { |
276 | 93d89f63 | Isaku Yamahata | VMSTATE_PCI_DEVICE(dev, PIIX4PMState), |
277 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.sts, PIIX4PMState), |
278 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.evt.en, PIIX4PMState), |
279 | 355bf2e5 | Gerd Hoffmann | VMSTATE_UINT16(ar.pm1.cnt.cnt, PIIX4PMState), |
280 | 93d89f63 | Isaku Yamahata | VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
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281 | 355bf2e5 | Gerd Hoffmann | VMSTATE_TIMER(ar.tmr.timer, PIIX4PMState), |
282 | 355bf2e5 | Gerd Hoffmann | VMSTATE_INT64(ar.tmr.overflow_time, PIIX4PMState), |
283 | 355bf2e5 | Gerd Hoffmann | VMSTATE_STRUCT(ar.gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
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284 | 4cf3e6f3 | Alex Williamson | VMSTATE_STRUCT(pci0_status, PIIX4PMState, 2, vmstate_pci_status,
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285 | 4cf3e6f3 | Alex Williamson | struct pci_status),
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286 | 93d89f63 | Isaku Yamahata | VMSTATE_END_OF_LIST() |
287 | 93d89f63 | Isaku Yamahata | } |
288 | 93d89f63 | Isaku Yamahata | }; |
289 | 93d89f63 | Isaku Yamahata | |
290 | 7faa8075 | Alex Williamson | static void acpi_piix_eject_slot(PIIX4PMState *s, unsigned slots) |
291 | 7faa8075 | Alex Williamson | { |
292 | 0866aca1 | Anthony Liguori | BusChild *kid, *next; |
293 | 7faa8075 | Alex Williamson | BusState *bus = qdev_get_parent_bus(&s->dev.qdev); |
294 | 7faa8075 | Alex Williamson | int slot = ffs(slots) - 1; |
295 | 54bfa546 | Michael S. Tsirkin | bool slot_free = true; |
296 | 7faa8075 | Alex Williamson | |
297 | 7faa8075 | Alex Williamson | /* Mark request as complete */
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298 | 7faa8075 | Alex Williamson | s->pci0_status.down &= ~(1U << slot);
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299 | 7faa8075 | Alex Williamson | |
300 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { |
301 | 0866aca1 | Anthony Liguori | DeviceState *qdev = kid->child; |
302 | 7faa8075 | Alex Williamson | PCIDevice *dev = PCI_DEVICE(qdev); |
303 | 7faa8075 | Alex Williamson | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); |
304 | 54bfa546 | Michael S. Tsirkin | if (PCI_SLOT(dev->devfn) == slot) {
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305 | 54bfa546 | Michael S. Tsirkin | if (pc->no_hotplug) {
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306 | 54bfa546 | Michael S. Tsirkin | slot_free = false;
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307 | 54bfa546 | Michael S. Tsirkin | } else {
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308 | a6de8ed8 | Amos Kong | object_unparent(OBJECT(dev)); |
309 | 54bfa546 | Michael S. Tsirkin | qdev_free(qdev); |
310 | 54bfa546 | Michael S. Tsirkin | } |
311 | 7faa8075 | Alex Williamson | } |
312 | 7faa8075 | Alex Williamson | } |
313 | 54bfa546 | Michael S. Tsirkin | if (slot_free) {
|
314 | 54bfa546 | Michael S. Tsirkin | s->pci0_slot_device_present &= ~(1U << slot);
|
315 | 54bfa546 | Michael S. Tsirkin | } |
316 | 7faa8075 | Alex Williamson | } |
317 | 7faa8075 | Alex Williamson | |
318 | 668643b0 | Marcelo Tosatti | static void piix4_update_hotplug(PIIX4PMState *s) |
319 | 668643b0 | Marcelo Tosatti | { |
320 | 668643b0 | Marcelo Tosatti | PCIDevice *dev = &s->dev; |
321 | 668643b0 | Marcelo Tosatti | BusState *bus = qdev_get_parent_bus(&dev->qdev); |
322 | 0866aca1 | Anthony Liguori | BusChild *kid, *next; |
323 | 668643b0 | Marcelo Tosatti | |
324 | 7faa8075 | Alex Williamson | /* Execute any pending removes during reset */
|
325 | 7faa8075 | Alex Williamson | while (s->pci0_status.down) {
|
326 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(s, s->pci0_status.down); |
327 | 7faa8075 | Alex Williamson | } |
328 | 7faa8075 | Alex Williamson | |
329 | 668643b0 | Marcelo Tosatti | s->pci0_hotplug_enable = ~0;
|
330 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present = 0;
|
331 | 668643b0 | Marcelo Tosatti | |
332 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH_SAFE(kid, &bus->children, sibling, next) { |
333 | 0866aca1 | Anthony Liguori | DeviceState *qdev = kid->child; |
334 | 40021f08 | Anthony Liguori | PCIDevice *pdev = PCI_DEVICE(qdev); |
335 | 40021f08 | Anthony Liguori | PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pdev); |
336 | 668643b0 | Marcelo Tosatti | int slot = PCI_SLOT(pdev->devfn);
|
337 | 668643b0 | Marcelo Tosatti | |
338 | 40021f08 | Anthony Liguori | if (pc->no_hotplug) {
|
339 | 7faa8075 | Alex Williamson | s->pci0_hotplug_enable &= ~(1U << slot);
|
340 | 668643b0 | Marcelo Tosatti | } |
341 | 7faa8075 | Alex Williamson | |
342 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
343 | 668643b0 | Marcelo Tosatti | } |
344 | 668643b0 | Marcelo Tosatti | } |
345 | 668643b0 | Marcelo Tosatti | |
346 | 93d89f63 | Isaku Yamahata | static void piix4_reset(void *opaque) |
347 | 93d89f63 | Isaku Yamahata | { |
348 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
349 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf = s->dev.config; |
350 | 93d89f63 | Isaku Yamahata | |
351 | 93d89f63 | Isaku Yamahata | pci_conf[0x58] = 0; |
352 | 93d89f63 | Isaku Yamahata | pci_conf[0x59] = 0; |
353 | 93d89f63 | Isaku Yamahata | pci_conf[0x5a] = 0; |
354 | 93d89f63 | Isaku Yamahata | pci_conf[0x5b] = 0; |
355 | 93d89f63 | Isaku Yamahata | |
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 | 93d89f63 | Isaku Yamahata | static void piix4_powerdown(void *opaque, int irq, int power_failing) |
364 | 93d89f63 | Isaku Yamahata | { |
365 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
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 | pci_conf[0x40] = 0x01; /* PM io base read only bit */ |
396 | 93d89f63 | Isaku Yamahata | |
397 | 93d89f63 | Isaku Yamahata | /* APM */
|
398 | 93d89f63 | Isaku Yamahata | apm_init(&s->apm, apm_ctrl_changed, s); |
399 | 93d89f63 | Isaku Yamahata | |
400 | 93d89f63 | Isaku Yamahata | register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s); |
401 | 93d89f63 | Isaku Yamahata | |
402 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
403 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited to prevent SMM from running. KVM does not
|
404 | 93d89f63 | Isaku Yamahata | * support SMM mode. */
|
405 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
406 | 93d89f63 | Isaku Yamahata | } |
407 | 93d89f63 | Isaku Yamahata | |
408 | 93d89f63 | Isaku Yamahata | /* XXX: which specification is used ? The i82731AB has different
|
409 | 93d89f63 | Isaku Yamahata | mappings */
|
410 | e8ec0571 | Isaku Yamahata | pci_conf[0x90] = s->smb_io_base | 1; |
411 | e8ec0571 | Isaku Yamahata | pci_conf[0x91] = s->smb_io_base >> 8; |
412 | 93d89f63 | Isaku Yamahata | pci_conf[0xd2] = 0x09; |
413 | e8ec0571 | Isaku Yamahata | register_ioport_write(s->smb_io_base, 64, 1, smb_ioport_writeb, &s->smb); |
414 | e8ec0571 | Isaku Yamahata | register_ioport_read(s->smb_io_base, 64, 1, smb_ioport_readb, &s->smb); |
415 | 93d89f63 | Isaku Yamahata | |
416 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_init(&s->ar, pm_tmr_timer); |
417 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_init(&s->ar, GPE_LEN); |
418 | 93d89f63 | Isaku Yamahata | |
419 | 93d89f63 | Isaku Yamahata | qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1);
|
420 | 93d89f63 | Isaku Yamahata | |
421 | e8ec0571 | Isaku Yamahata | pm_smbus_init(&s->dev.qdev, &s->smb); |
422 | 6141dbfe | Paolo Bonzini | s->machine_ready.notify = piix4_pm_machine_ready; |
423 | 6141dbfe | Paolo Bonzini | qemu_add_machine_init_done_notifier(&s->machine_ready); |
424 | e8ec0571 | Isaku Yamahata | qemu_register_reset(piix4_reset, s); |
425 | ac404095 | Isaku Yamahata | piix4_acpi_system_hot_add_init(dev->bus, s); |
426 | e8ec0571 | Isaku Yamahata | |
427 | e8ec0571 | Isaku Yamahata | return 0; |
428 | e8ec0571 | Isaku Yamahata | } |
429 | e8ec0571 | Isaku Yamahata | |
430 | e8ec0571 | Isaku Yamahata | i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
|
431 | da98c8eb | Gerd Hoffmann | qemu_irq sci_irq, qemu_irq smi_irq, |
432 | 459ae5ea | Gleb Natapov | int kvm_enabled, void *fw_cfg) |
433 | e8ec0571 | Isaku Yamahata | { |
434 | e8ec0571 | Isaku Yamahata | PCIDevice *dev; |
435 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s; |
436 | e8ec0571 | Isaku Yamahata | |
437 | e8ec0571 | Isaku Yamahata | dev = pci_create(bus, devfn, "PIIX4_PM");
|
438 | e8ec0571 | Isaku Yamahata | qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
|
439 | 93d89f63 | Isaku Yamahata | |
440 | e8ec0571 | Isaku Yamahata | s = DO_UPCAST(PIIX4PMState, dev, dev); |
441 | 93d89f63 | Isaku Yamahata | s->irq = sci_irq; |
442 | da98c8eb | Gerd Hoffmann | acpi_pm1_cnt_init(&s->ar); |
443 | 93d89f63 | Isaku Yamahata | s->smi_irq = smi_irq; |
444 | e8ec0571 | Isaku Yamahata | s->kvm_enabled = kvm_enabled; |
445 | e8ec0571 | Isaku Yamahata | |
446 | e8ec0571 | Isaku Yamahata | qdev_init_nofail(&dev->qdev); |
447 | 93d89f63 | Isaku Yamahata | |
448 | 459ae5ea | Gleb Natapov | if (fw_cfg) {
|
449 | 459ae5ea | Gleb Natapov | uint8_t suspend[6] = {128, 0, 0, 129, 128, 128}; |
450 | 459ae5ea | Gleb Natapov | suspend[3] = 1 | ((!s->disable_s3) << 7); |
451 | 459ae5ea | Gleb Natapov | suspend[4] = s->s4_val | ((!s->disable_s4) << 7); |
452 | 459ae5ea | Gleb Natapov | |
453 | 459ae5ea | Gleb Natapov | fw_cfg_add_file(fw_cfg, "etc/system-states", g_memdup(suspend, 6), 6); |
454 | 459ae5ea | Gleb Natapov | } |
455 | 459ae5ea | Gleb Natapov | |
456 | 93d89f63 | Isaku Yamahata | return s->smb.smbus;
|
457 | 93d89f63 | Isaku Yamahata | } |
458 | 93d89f63 | Isaku Yamahata | |
459 | 40021f08 | Anthony Liguori | static Property piix4_pm_properties[] = {
|
460 | 40021f08 | Anthony Liguori | DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), |
461 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("disable_s3", PIIX4PMState, disable_s3, 0), |
462 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("disable_s4", PIIX4PMState, disable_s4, 0), |
463 | 459ae5ea | Gleb Natapov | DEFINE_PROP_UINT8("s4_val", PIIX4PMState, s4_val, 2), |
464 | 40021f08 | Anthony Liguori | DEFINE_PROP_END_OF_LIST(), |
465 | 40021f08 | Anthony Liguori | }; |
466 | 40021f08 | Anthony Liguori | |
467 | 40021f08 | Anthony Liguori | static void piix4_pm_class_init(ObjectClass *klass, void *data) |
468 | 40021f08 | Anthony Liguori | { |
469 | 39bffca2 | Anthony Liguori | DeviceClass *dc = DEVICE_CLASS(klass); |
470 | 40021f08 | Anthony Liguori | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
471 | 40021f08 | Anthony Liguori | |
472 | 40021f08 | Anthony Liguori | k->no_hotplug = 1;
|
473 | 40021f08 | Anthony Liguori | k->init = piix4_pm_initfn; |
474 | 40021f08 | Anthony Liguori | k->config_write = pm_write_config; |
475 | 40021f08 | Anthony Liguori | k->vendor_id = PCI_VENDOR_ID_INTEL; |
476 | 40021f08 | Anthony Liguori | k->device_id = PCI_DEVICE_ID_INTEL_82371AB_3; |
477 | 40021f08 | Anthony Liguori | k->revision = 0x03;
|
478 | 40021f08 | Anthony Liguori | k->class_id = PCI_CLASS_BRIDGE_OTHER; |
479 | 39bffca2 | Anthony Liguori | dc->desc = "PM";
|
480 | 39bffca2 | Anthony Liguori | dc->no_user = 1;
|
481 | 39bffca2 | Anthony Liguori | dc->vmsd = &vmstate_acpi; |
482 | 39bffca2 | Anthony Liguori | dc->props = piix4_pm_properties; |
483 | 40021f08 | Anthony Liguori | } |
484 | 40021f08 | Anthony Liguori | |
485 | 39bffca2 | Anthony Liguori | static TypeInfo piix4_pm_info = {
|
486 | 39bffca2 | Anthony Liguori | .name = "PIIX4_PM",
|
487 | 39bffca2 | Anthony Liguori | .parent = TYPE_PCI_DEVICE, |
488 | 39bffca2 | Anthony Liguori | .instance_size = sizeof(PIIX4PMState),
|
489 | 39bffca2 | Anthony Liguori | .class_init = piix4_pm_class_init, |
490 | e8ec0571 | Isaku Yamahata | }; |
491 | e8ec0571 | Isaku Yamahata | |
492 | 83f7d43a | Andreas Färber | static void piix4_pm_register_types(void) |
493 | e8ec0571 | Isaku Yamahata | { |
494 | 39bffca2 | Anthony Liguori | type_register_static(&piix4_pm_info); |
495 | e8ec0571 | Isaku Yamahata | } |
496 | e8ec0571 | Isaku Yamahata | |
497 | 83f7d43a | Andreas Färber | type_init(piix4_pm_register_types) |
498 | e8ec0571 | Isaku Yamahata | |
499 | 93d89f63 | Isaku Yamahata | static uint32_t gpe_readb(void *opaque, uint32_t addr) |
500 | 93d89f63 | Isaku Yamahata | { |
501 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
502 | 355bf2e5 | Gerd Hoffmann | uint32_t val = acpi_gpe_ioport_readb(&s->ar, addr); |
503 | 93d89f63 | Isaku Yamahata | |
504 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe read %x == %x\n", addr, val);
|
505 | 93d89f63 | Isaku Yamahata | return val;
|
506 | 93d89f63 | Isaku Yamahata | } |
507 | 93d89f63 | Isaku Yamahata | |
508 | 93d89f63 | Isaku Yamahata | static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val) |
509 | 93d89f63 | Isaku Yamahata | { |
510 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
511 | 633aa0ac | Gleb Natapov | |
512 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_ioport_writeb(&s->ar, addr, val); |
513 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
514 | 93d89f63 | Isaku Yamahata | |
515 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe write %x <== %d\n", addr, val);
|
516 | 93d89f63 | Isaku Yamahata | } |
517 | 93d89f63 | Isaku Yamahata | |
518 | ba737541 | Alex Williamson | static uint32_t pci_up_read(void *opaque, uint32_t addr) |
519 | 93d89f63 | Isaku Yamahata | { |
520 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
521 | 7faa8075 | Alex Williamson | uint32_t val; |
522 | 7faa8075 | Alex Williamson | |
523 | 7faa8075 | Alex Williamson | /* Manufacture an "up" value to cause a device check on any hotplug
|
524 | 7faa8075 | Alex Williamson | * slot with a device. Extra device checks are harmless. */
|
525 | 7faa8075 | Alex Williamson | val = s->pci0_slot_device_present & s->pci0_hotplug_enable; |
526 | 93d89f63 | Isaku Yamahata | |
527 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_up_read %x\n", val);
|
528 | 93d89f63 | Isaku Yamahata | return val;
|
529 | 93d89f63 | Isaku Yamahata | } |
530 | 93d89f63 | Isaku Yamahata | |
531 | ba737541 | Alex Williamson | static uint32_t pci_down_read(void *opaque, uint32_t addr) |
532 | 93d89f63 | Isaku Yamahata | { |
533 | ba737541 | Alex Williamson | PIIX4PMState *s = opaque; |
534 | ba737541 | Alex Williamson | uint32_t val = s->pci0_status.down; |
535 | ba737541 | Alex Williamson | |
536 | ba737541 | Alex Williamson | PIIX4_DPRINTF("pci_down_read %x\n", val);
|
537 | ba737541 | Alex Williamson | return val;
|
538 | 93d89f63 | Isaku Yamahata | } |
539 | 93d89f63 | Isaku Yamahata | |
540 | 9290f364 | Alex Williamson | static uint32_t pci_features_read(void *opaque, uint32_t addr) |
541 | 93d89f63 | Isaku Yamahata | { |
542 | 9290f364 | Alex Williamson | /* No feature defined yet */
|
543 | 9290f364 | Alex Williamson | PIIX4_DPRINTF("pci_features_read %x\n", 0); |
544 | 93d89f63 | Isaku Yamahata | return 0; |
545 | 93d89f63 | Isaku Yamahata | } |
546 | 93d89f63 | Isaku Yamahata | |
547 | 93d89f63 | Isaku Yamahata | static void pciej_write(void *opaque, uint32_t addr, uint32_t val) |
548 | 93d89f63 | Isaku Yamahata | { |
549 | 7faa8075 | Alex Williamson | acpi_piix_eject_slot(opaque, val); |
550 | 93d89f63 | Isaku Yamahata | |
551 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pciej write %x <== %d\n", addr, val);
|
552 | 93d89f63 | Isaku Yamahata | } |
553 | 93d89f63 | Isaku Yamahata | |
554 | 668643b0 | Marcelo Tosatti | static uint32_t pcirmv_read(void *opaque, uint32_t addr) |
555 | 668643b0 | Marcelo Tosatti | { |
556 | 668643b0 | Marcelo Tosatti | PIIX4PMState *s = opaque; |
557 | 668643b0 | Marcelo Tosatti | |
558 | 668643b0 | Marcelo Tosatti | return s->pci0_hotplug_enable;
|
559 | 668643b0 | Marcelo Tosatti | } |
560 | 668643b0 | Marcelo Tosatti | |
561 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
562 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state); |
563 | 93d89f63 | Isaku Yamahata | |
564 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s) |
565 | 93d89f63 | Isaku Yamahata | { |
566 | 93d89f63 | Isaku Yamahata | |
567 | 23910d3f | Isaku Yamahata | register_ioport_write(GPE_BASE, GPE_LEN, 1, gpe_writeb, s);
|
568 | 23910d3f | Isaku Yamahata | register_ioport_read(GPE_BASE, GPE_LEN, 1, gpe_readb, s);
|
569 | 355bf2e5 | Gerd Hoffmann | acpi_gpe_blk(&s->ar, GPE_BASE); |
570 | ac404095 | Isaku Yamahata | |
571 | ba737541 | Alex Williamson | register_ioport_read(PCI_UP_BASE, 4, 4, pci_up_read, s); |
572 | ba737541 | Alex Williamson | register_ioport_read(PCI_DOWN_BASE, 4, 4, pci_down_read, s); |
573 | 93d89f63 | Isaku Yamahata | |
574 | 7faa8075 | Alex Williamson | register_ioport_write(PCI_EJ_BASE, 4, 4, pciej_write, s); |
575 | 9290f364 | Alex Williamson | register_ioport_read(PCI_EJ_BASE, 4, 4, pci_features_read, s); |
576 | 93d89f63 | Isaku Yamahata | |
577 | 668643b0 | Marcelo Tosatti | register_ioport_read(PCI_RMV_BASE, 4, 4, pcirmv_read, s); |
578 | 668643b0 | Marcelo Tosatti | |
579 | ac404095 | Isaku Yamahata | pci_bus_hotplug(bus, piix4_device_hotplug, &s->dev.qdev); |
580 | 93d89f63 | Isaku Yamahata | } |
581 | 93d89f63 | Isaku Yamahata | |
582 | ac404095 | Isaku Yamahata | static void enable_device(PIIX4PMState *s, int slot) |
583 | 93d89f63 | Isaku Yamahata | { |
584 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
|
585 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
586 | 93d89f63 | Isaku Yamahata | } |
587 | 93d89f63 | Isaku Yamahata | |
588 | ac404095 | Isaku Yamahata | static void disable_device(PIIX4PMState *s, int slot) |
589 | 93d89f63 | Isaku Yamahata | { |
590 | 355bf2e5 | Gerd Hoffmann | s->ar.gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
|
591 | 7faa8075 | Alex Williamson | s->pci0_status.down |= (1U << slot);
|
592 | 93d89f63 | Isaku Yamahata | } |
593 | 93d89f63 | Isaku Yamahata | |
594 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
595 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state) |
596 | 93d89f63 | Isaku Yamahata | { |
597 | 93d89f63 | Isaku Yamahata | int slot = PCI_SLOT(dev->devfn);
|
598 | ac404095 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, |
599 | 40021f08 | Anthony Liguori | PCI_DEVICE(qdev)); |
600 | 93d89f63 | Isaku Yamahata | |
601 | 4cff0a59 | Michael S. Tsirkin | /* Don't send event when device is enabled during qemu machine creation:
|
602 | 4cff0a59 | Michael S. Tsirkin | * it is present on boot, no hotplug event is necessary. We do send an
|
603 | 4cff0a59 | Michael S. Tsirkin | * event when the device is disabled later. */
|
604 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_COLDPLUG_ENABLED) {
|
605 | 7faa8075 | Alex Williamson | s->pci0_slot_device_present |= (1U << slot);
|
606 | 5beb8ad5 | Isaku Yamahata | return 0; |
607 | 4cff0a59 | Michael S. Tsirkin | } |
608 | 5beb8ad5 | Isaku Yamahata | |
609 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_HOTPLUG_ENABLED) {
|
610 | ac404095 | Isaku Yamahata | enable_device(s, slot); |
611 | ac404095 | Isaku Yamahata | } else {
|
612 | ac404095 | Isaku Yamahata | disable_device(s, slot); |
613 | ac404095 | Isaku Yamahata | } |
614 | 633aa0ac | Gleb Natapov | |
615 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
616 | 633aa0ac | Gleb Natapov | |
617 | 93d89f63 | Isaku Yamahata | return 0; |
618 | 93d89f63 | Isaku Yamahata | } |