root / hw / acpi_piix4.c @ 86d86414
History | View | Annotate | Download (17.6 kB)
1 | 93d89f63 | Isaku Yamahata | /*
|
---|---|---|---|
2 | 93d89f63 | Isaku Yamahata | * ACPI implementation
|
3 | 93d89f63 | Isaku Yamahata | *
|
4 | 93d89f63 | Isaku Yamahata | * Copyright (c) 2006 Fabrice Bellard
|
5 | 93d89f63 | Isaku Yamahata | *
|
6 | 93d89f63 | Isaku Yamahata | * This library is free software; you can redistribute it and/or
|
7 | 93d89f63 | Isaku Yamahata | * modify it under the terms of the GNU Lesser General Public
|
8 | 93d89f63 | Isaku Yamahata | * License version 2 as published by the Free Software Foundation.
|
9 | 93d89f63 | Isaku Yamahata | *
|
10 | 93d89f63 | Isaku Yamahata | * This library is distributed in the hope that it will be useful,
|
11 | 93d89f63 | Isaku Yamahata | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 | 93d89f63 | Isaku Yamahata | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
13 | 93d89f63 | Isaku Yamahata | * Lesser General Public License for more details.
|
14 | 93d89f63 | Isaku Yamahata | *
|
15 | 93d89f63 | Isaku Yamahata | * You should have received a copy of the GNU Lesser General Public
|
16 | 93d89f63 | Isaku Yamahata | * License along with this library; if not, see <http://www.gnu.org/licenses/>
|
17 | 93d89f63 | Isaku Yamahata | */
|
18 | 93d89f63 | Isaku Yamahata | #include "hw.h" |
19 | 93d89f63 | Isaku Yamahata | #include "pc.h" |
20 | 93d89f63 | Isaku Yamahata | #include "apm.h" |
21 | 93d89f63 | Isaku Yamahata | #include "pm_smbus.h" |
22 | 93d89f63 | Isaku Yamahata | #include "pci.h" |
23 | 93d89f63 | Isaku Yamahata | #include "acpi.h" |
24 | 666daa68 | Markus Armbruster | #include "sysemu.h" |
25 | bf1b0071 | Blue Swirl | #include "range.h" |
26 | 93d89f63 | Isaku Yamahata | |
27 | 93d89f63 | Isaku Yamahata | //#define DEBUG
|
28 | 93d89f63 | Isaku Yamahata | |
29 | 50d8ff8b | Isaku Yamahata | #ifdef DEBUG
|
30 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) |
31 | 50d8ff8b | Isaku Yamahata | #else
|
32 | 50d8ff8b | Isaku Yamahata | # define PIIX4_DPRINTF(format, ...) do { } while (0) |
33 | 50d8ff8b | Isaku Yamahata | #endif
|
34 | 50d8ff8b | Isaku Yamahata | |
35 | 93d89f63 | Isaku Yamahata | #define ACPI_DBG_IO_ADDR 0xb044 |
36 | 93d89f63 | Isaku Yamahata | |
37 | ac404095 | Isaku Yamahata | #define GPE_BASE 0xafe0 |
38 | ac404095 | Isaku Yamahata | #define PCI_BASE 0xae00 |
39 | ac404095 | Isaku Yamahata | #define PCI_EJ_BASE 0xae08 |
40 | 668643b0 | Marcelo Tosatti | #define PCI_RMV_BASE 0xae0c |
41 | ac404095 | Isaku Yamahata | |
42 | 4441a287 | Gleb Natapov | #define PIIX4_PCI_HOTPLUG_STATUS 2 |
43 | 4441a287 | Gleb Natapov | |
44 | ac404095 | Isaku Yamahata | struct gpe_regs {
|
45 | ac404095 | Isaku Yamahata | uint16_t sts; /* status */
|
46 | ac404095 | Isaku Yamahata | uint16_t en; /* enabled */
|
47 | ac404095 | Isaku Yamahata | }; |
48 | ac404095 | Isaku Yamahata | |
49 | ac404095 | Isaku Yamahata | struct pci_status {
|
50 | ac404095 | Isaku Yamahata | uint32_t up; |
51 | ac404095 | Isaku Yamahata | uint32_t down; |
52 | ac404095 | Isaku Yamahata | }; |
53 | ac404095 | Isaku Yamahata | |
54 | 93d89f63 | Isaku Yamahata | typedef struct PIIX4PMState { |
55 | 93d89f63 | Isaku Yamahata | PCIDevice dev; |
56 | 2871a3f6 | Avi Kivity | IORange ioport; |
57 | 93d89f63 | Isaku Yamahata | uint16_t pmsts; |
58 | 93d89f63 | Isaku Yamahata | uint16_t pmen; |
59 | 93d89f63 | Isaku Yamahata | uint16_t pmcntrl; |
60 | 93d89f63 | Isaku Yamahata | |
61 | 93d89f63 | Isaku Yamahata | APMState apm; |
62 | 93d89f63 | Isaku Yamahata | |
63 | 93d89f63 | Isaku Yamahata | QEMUTimer *tmr_timer; |
64 | 93d89f63 | Isaku Yamahata | int64_t tmr_overflow_time; |
65 | 93d89f63 | Isaku Yamahata | |
66 | 93d89f63 | Isaku Yamahata | PMSMBus smb; |
67 | e8ec0571 | Isaku Yamahata | uint32_t smb_io_base; |
68 | 93d89f63 | Isaku Yamahata | |
69 | 93d89f63 | Isaku Yamahata | qemu_irq irq; |
70 | 93d89f63 | Isaku Yamahata | qemu_irq cmos_s3; |
71 | 93d89f63 | Isaku Yamahata | qemu_irq smi_irq; |
72 | 93d89f63 | Isaku Yamahata | int kvm_enabled;
|
73 | ac404095 | Isaku Yamahata | |
74 | ac404095 | Isaku Yamahata | /* for pci hotplug */
|
75 | ac404095 | Isaku Yamahata | struct gpe_regs gpe;
|
76 | ac404095 | Isaku Yamahata | struct pci_status pci0_status;
|
77 | 668643b0 | Marcelo Tosatti | uint32_t pci0_hotplug_enable; |
78 | 93d89f63 | Isaku Yamahata | } PIIX4PMState; |
79 | 93d89f63 | Isaku Yamahata | |
80 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s); |
81 | ac404095 | Isaku Yamahata | |
82 | 93d89f63 | Isaku Yamahata | #define ACPI_ENABLE 0xf1 |
83 | 93d89f63 | Isaku Yamahata | #define ACPI_DISABLE 0xf0 |
84 | 93d89f63 | Isaku Yamahata | |
85 | 93d89f63 | Isaku Yamahata | static uint32_t get_pmtmr(PIIX4PMState *s)
|
86 | 93d89f63 | Isaku Yamahata | { |
87 | 93d89f63 | Isaku Yamahata | uint32_t d; |
88 | 93d89f63 | Isaku Yamahata | d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY, get_ticks_per_sec()); |
89 | 93d89f63 | Isaku Yamahata | return d & 0xffffff; |
90 | 93d89f63 | Isaku Yamahata | } |
91 | 93d89f63 | Isaku Yamahata | |
92 | 93d89f63 | Isaku Yamahata | static int get_pmsts(PIIX4PMState *s) |
93 | 93d89f63 | Isaku Yamahata | { |
94 | 93d89f63 | Isaku Yamahata | int64_t d; |
95 | 93d89f63 | Isaku Yamahata | |
96 | 93d89f63 | Isaku Yamahata | d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY, |
97 | 93d89f63 | Isaku Yamahata | get_ticks_per_sec()); |
98 | 93d89f63 | Isaku Yamahata | if (d >= s->tmr_overflow_time)
|
99 | 93d89f63 | Isaku Yamahata | s->pmsts |= ACPI_BITMASK_TIMER_STATUS; |
100 | 93d89f63 | Isaku Yamahata | return s->pmsts;
|
101 | 93d89f63 | Isaku Yamahata | } |
102 | 93d89f63 | Isaku Yamahata | |
103 | 93d89f63 | Isaku Yamahata | static void pm_update_sci(PIIX4PMState *s) |
104 | 93d89f63 | Isaku Yamahata | { |
105 | 93d89f63 | Isaku Yamahata | int sci_level, pmsts;
|
106 | 93d89f63 | Isaku Yamahata | int64_t expire_time; |
107 | 93d89f63 | Isaku Yamahata | |
108 | 93d89f63 | Isaku Yamahata | pmsts = get_pmsts(s); |
109 | 93d89f63 | Isaku Yamahata | sci_level = (((pmsts & s->pmen) & |
110 | 93d89f63 | Isaku Yamahata | (ACPI_BITMASK_RT_CLOCK_ENABLE | |
111 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_POWER_BUTTON_ENABLE | |
112 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_GLOBAL_LOCK_ENABLE | |
113 | 633aa0ac | Gleb Natapov | ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
|
114 | 633aa0ac | Gleb Natapov | (((s->gpe.sts & s->gpe.en) & PIIX4_PCI_HOTPLUG_STATUS) != 0);
|
115 | 633aa0ac | Gleb Natapov | |
116 | 93d89f63 | Isaku Yamahata | qemu_set_irq(s->irq, sci_level); |
117 | 93d89f63 | Isaku Yamahata | /* schedule a timer interruption if needed */
|
118 | 93d89f63 | Isaku Yamahata | if ((s->pmen & ACPI_BITMASK_TIMER_ENABLE) &&
|
119 | 93d89f63 | Isaku Yamahata | !(pmsts & ACPI_BITMASK_TIMER_STATUS)) { |
120 | 93d89f63 | Isaku Yamahata | expire_time = muldiv64(s->tmr_overflow_time, get_ticks_per_sec(), |
121 | 93d89f63 | Isaku Yamahata | PM_TIMER_FREQUENCY); |
122 | 93d89f63 | Isaku Yamahata | qemu_mod_timer(s->tmr_timer, expire_time); |
123 | 93d89f63 | Isaku Yamahata | } else {
|
124 | 93d89f63 | Isaku Yamahata | qemu_del_timer(s->tmr_timer); |
125 | 93d89f63 | Isaku Yamahata | } |
126 | 93d89f63 | Isaku Yamahata | } |
127 | 93d89f63 | Isaku Yamahata | |
128 | 93d89f63 | Isaku Yamahata | static void pm_tmr_timer(void *opaque) |
129 | 93d89f63 | Isaku Yamahata | { |
130 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
131 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
132 | 93d89f63 | Isaku Yamahata | } |
133 | 93d89f63 | Isaku Yamahata | |
134 | 2871a3f6 | Avi Kivity | static void pm_ioport_write(IORange *ioport, uint64_t addr, unsigned width, |
135 | 2871a3f6 | Avi Kivity | uint64_t val) |
136 | 93d89f63 | Isaku Yamahata | { |
137 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
138 | 2871a3f6 | Avi Kivity | |
139 | 2871a3f6 | Avi Kivity | if (width != 2) { |
140 | 2871a3f6 | Avi Kivity | PIIX4_DPRINTF("PM write port=0x%04x width=%d val=0x%08x\n",
|
141 | 2871a3f6 | Avi Kivity | (unsigned)addr, width, (unsigned)val); |
142 | 2871a3f6 | Avi Kivity | } |
143 | 2871a3f6 | Avi Kivity | |
144 | 93d89f63 | Isaku Yamahata | switch(addr) {
|
145 | 93d89f63 | Isaku Yamahata | case 0x00: |
146 | 93d89f63 | Isaku Yamahata | { |
147 | 93d89f63 | Isaku Yamahata | int64_t d; |
148 | 93d89f63 | Isaku Yamahata | int pmsts;
|
149 | 93d89f63 | Isaku Yamahata | pmsts = get_pmsts(s); |
150 | 93d89f63 | Isaku Yamahata | if (pmsts & val & ACPI_BITMASK_TIMER_STATUS) {
|
151 | 93d89f63 | Isaku Yamahata | /* if TMRSTS is reset, then compute the new overflow time */
|
152 | 93d89f63 | Isaku Yamahata | d = muldiv64(qemu_get_clock(vm_clock), PM_TIMER_FREQUENCY, |
153 | 93d89f63 | Isaku Yamahata | get_ticks_per_sec()); |
154 | 93d89f63 | Isaku Yamahata | s->tmr_overflow_time = (d + 0x800000LL) & ~0x7fffffLL; |
155 | 93d89f63 | Isaku Yamahata | } |
156 | 93d89f63 | Isaku Yamahata | s->pmsts &= ~val; |
157 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
158 | 93d89f63 | Isaku Yamahata | } |
159 | 93d89f63 | Isaku Yamahata | break;
|
160 | 93d89f63 | Isaku Yamahata | case 0x02: |
161 | 93d89f63 | Isaku Yamahata | s->pmen = val; |
162 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
163 | 93d89f63 | Isaku Yamahata | break;
|
164 | 93d89f63 | Isaku Yamahata | case 0x04: |
165 | 93d89f63 | Isaku Yamahata | { |
166 | 93d89f63 | Isaku Yamahata | int sus_typ;
|
167 | 93d89f63 | Isaku Yamahata | s->pmcntrl = val & ~(ACPI_BITMASK_SLEEP_ENABLE); |
168 | 93d89f63 | Isaku Yamahata | if (val & ACPI_BITMASK_SLEEP_ENABLE) {
|
169 | 93d89f63 | Isaku Yamahata | /* change suspend type */
|
170 | 93d89f63 | Isaku Yamahata | sus_typ = (val >> 10) & 7; |
171 | 93d89f63 | Isaku Yamahata | switch(sus_typ) {
|
172 | 93d89f63 | Isaku Yamahata | case 0: /* soft power off */ |
173 | 93d89f63 | Isaku Yamahata | qemu_system_shutdown_request(); |
174 | 93d89f63 | Isaku Yamahata | break;
|
175 | 93d89f63 | Isaku Yamahata | case 1: |
176 | 93d89f63 | Isaku Yamahata | /* ACPI_BITMASK_WAKE_STATUS should be set on resume.
|
177 | 93d89f63 | Isaku Yamahata | Pretend that resume was caused by power button */
|
178 | 93d89f63 | Isaku Yamahata | s->pmsts |= (ACPI_BITMASK_WAKE_STATUS | |
179 | 93d89f63 | Isaku Yamahata | ACPI_BITMASK_POWER_BUTTON_STATUS); |
180 | 93d89f63 | Isaku Yamahata | qemu_system_reset_request(); |
181 | 93d89f63 | Isaku Yamahata | if (s->cmos_s3) {
|
182 | 93d89f63 | Isaku Yamahata | qemu_irq_raise(s->cmos_s3); |
183 | 93d89f63 | Isaku Yamahata | } |
184 | 93d89f63 | Isaku Yamahata | default:
|
185 | 93d89f63 | Isaku Yamahata | break;
|
186 | 93d89f63 | Isaku Yamahata | } |
187 | 93d89f63 | Isaku Yamahata | } |
188 | 93d89f63 | Isaku Yamahata | } |
189 | 93d89f63 | Isaku Yamahata | break;
|
190 | 93d89f63 | Isaku Yamahata | default:
|
191 | 93d89f63 | Isaku Yamahata | break;
|
192 | 93d89f63 | Isaku Yamahata | } |
193 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("PM writew port=0x%04x val=0x%04x\n", addr, val);
|
194 | 93d89f63 | Isaku Yamahata | } |
195 | 93d89f63 | Isaku Yamahata | |
196 | 2871a3f6 | Avi Kivity | static void pm_ioport_read(IORange *ioport, uint64_t addr, unsigned width, |
197 | 2871a3f6 | Avi Kivity | uint64_t *data) |
198 | 93d89f63 | Isaku Yamahata | { |
199 | 2871a3f6 | Avi Kivity | PIIX4PMState *s = container_of(ioport, PIIX4PMState, ioport); |
200 | 93d89f63 | Isaku Yamahata | uint32_t val; |
201 | 93d89f63 | Isaku Yamahata | |
202 | 93d89f63 | Isaku Yamahata | switch(addr) {
|
203 | 93d89f63 | Isaku Yamahata | case 0x00: |
204 | 93d89f63 | Isaku Yamahata | val = get_pmsts(s); |
205 | 93d89f63 | Isaku Yamahata | break;
|
206 | 93d89f63 | Isaku Yamahata | case 0x02: |
207 | 93d89f63 | Isaku Yamahata | val = s->pmen; |
208 | 93d89f63 | Isaku Yamahata | break;
|
209 | 93d89f63 | Isaku Yamahata | case 0x04: |
210 | 93d89f63 | Isaku Yamahata | val = s->pmcntrl; |
211 | 93d89f63 | Isaku Yamahata | break;
|
212 | 93d89f63 | Isaku Yamahata | case 0x08: |
213 | 93d89f63 | Isaku Yamahata | val = get_pmtmr(s); |
214 | 93d89f63 | Isaku Yamahata | break;
|
215 | 93d89f63 | Isaku Yamahata | default:
|
216 | 93d89f63 | Isaku Yamahata | val = 0;
|
217 | 93d89f63 | Isaku Yamahata | break;
|
218 | 93d89f63 | Isaku Yamahata | } |
219 | 2871a3f6 | Avi Kivity | PIIX4_DPRINTF("PM readw port=0x%04x val=0x%04x\n", addr, val);
|
220 | 2871a3f6 | Avi Kivity | *data = val; |
221 | 93d89f63 | Isaku Yamahata | } |
222 | 93d89f63 | Isaku Yamahata | |
223 | 2871a3f6 | Avi Kivity | static const IORangeOps pm_iorange_ops = { |
224 | 2871a3f6 | Avi Kivity | .read = pm_ioport_read, |
225 | 2871a3f6 | Avi Kivity | .write = pm_ioport_write, |
226 | 2871a3f6 | Avi Kivity | }; |
227 | 2871a3f6 | Avi Kivity | |
228 | 93d89f63 | Isaku Yamahata | static void apm_ctrl_changed(uint32_t val, void *arg) |
229 | 93d89f63 | Isaku Yamahata | { |
230 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = arg; |
231 | 93d89f63 | Isaku Yamahata | |
232 | 93d89f63 | Isaku Yamahata | /* ACPI specs 3.0, 4.7.2.5 */
|
233 | 93d89f63 | Isaku Yamahata | if (val == ACPI_ENABLE) {
|
234 | 93d89f63 | Isaku Yamahata | s->pmcntrl |= ACPI_BITMASK_SCI_ENABLE; |
235 | 93d89f63 | Isaku Yamahata | } else if (val == ACPI_DISABLE) { |
236 | 93d89f63 | Isaku Yamahata | s->pmcntrl &= ~ACPI_BITMASK_SCI_ENABLE; |
237 | 93d89f63 | Isaku Yamahata | } |
238 | 93d89f63 | Isaku Yamahata | |
239 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x5b] & (1 << 1)) { |
240 | 93d89f63 | Isaku Yamahata | if (s->smi_irq) {
|
241 | 93d89f63 | Isaku Yamahata | qemu_irq_raise(s->smi_irq); |
242 | 93d89f63 | Isaku Yamahata | } |
243 | 93d89f63 | Isaku Yamahata | } |
244 | 93d89f63 | Isaku Yamahata | } |
245 | 93d89f63 | Isaku Yamahata | |
246 | 93d89f63 | Isaku Yamahata | static void acpi_dbg_writel(void *opaque, uint32_t addr, uint32_t val) |
247 | 93d89f63 | Isaku Yamahata | { |
248 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("ACPI: DBG: 0x%08x\n", val);
|
249 | 93d89f63 | Isaku Yamahata | } |
250 | 93d89f63 | Isaku Yamahata | |
251 | 93d89f63 | Isaku Yamahata | static void pm_io_space_update(PIIX4PMState *s) |
252 | 93d89f63 | Isaku Yamahata | { |
253 | 93d89f63 | Isaku Yamahata | uint32_t pm_io_base; |
254 | 93d89f63 | Isaku Yamahata | |
255 | 93d89f63 | Isaku Yamahata | if (s->dev.config[0x80] & 1) { |
256 | 93d89f63 | Isaku Yamahata | pm_io_base = le32_to_cpu(*(uint32_t *)(s->dev.config + 0x40));
|
257 | 93d89f63 | Isaku Yamahata | pm_io_base &= 0xffc0;
|
258 | 93d89f63 | Isaku Yamahata | |
259 | 93d89f63 | Isaku Yamahata | /* XXX: need to improve memory and ioport allocation */
|
260 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("PM: mapping to 0x%x\n", pm_io_base);
|
261 | 2871a3f6 | Avi Kivity | iorange_init(&s->ioport, &pm_iorange_ops, pm_io_base, 64);
|
262 | 2871a3f6 | Avi Kivity | ioport_register(&s->ioport); |
263 | 93d89f63 | Isaku Yamahata | } |
264 | 93d89f63 | Isaku Yamahata | } |
265 | 93d89f63 | Isaku Yamahata | |
266 | 93d89f63 | Isaku Yamahata | static void pm_write_config(PCIDevice *d, |
267 | 93d89f63 | Isaku Yamahata | uint32_t address, uint32_t val, int len)
|
268 | 93d89f63 | Isaku Yamahata | { |
269 | 93d89f63 | Isaku Yamahata | pci_default_write_config(d, address, val, len); |
270 | 93d89f63 | Isaku Yamahata | if (range_covers_byte(address, len, 0x80)) |
271 | 93d89f63 | Isaku Yamahata | pm_io_space_update((PIIX4PMState *)d); |
272 | 93d89f63 | Isaku Yamahata | } |
273 | 93d89f63 | Isaku Yamahata | |
274 | 93d89f63 | Isaku Yamahata | static int vmstate_acpi_post_load(void *opaque, int version_id) |
275 | 93d89f63 | Isaku Yamahata | { |
276 | 93d89f63 | Isaku Yamahata | PIIX4PMState *s = opaque; |
277 | 93d89f63 | Isaku Yamahata | |
278 | 93d89f63 | Isaku Yamahata | pm_io_space_update(s); |
279 | 93d89f63 | Isaku Yamahata | return 0; |
280 | 93d89f63 | Isaku Yamahata | } |
281 | 93d89f63 | Isaku Yamahata | |
282 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_gpe = { |
283 | 4cf3e6f3 | Alex Williamson | .name = "gpe",
|
284 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
|
285 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
|
286 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
|
287 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
288 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT16(sts, struct gpe_regs),
|
289 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT16(en, struct gpe_regs),
|
290 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
291 | 4cf3e6f3 | Alex Williamson | } |
292 | 4cf3e6f3 | Alex Williamson | }; |
293 | 4cf3e6f3 | Alex Williamson | |
294 | 4cf3e6f3 | Alex Williamson | static const VMStateDescription vmstate_pci_status = { |
295 | 4cf3e6f3 | Alex Williamson | .name = "pci_status",
|
296 | 4cf3e6f3 | Alex Williamson | .version_id = 1,
|
297 | 4cf3e6f3 | Alex Williamson | .minimum_version_id = 1,
|
298 | 4cf3e6f3 | Alex Williamson | .minimum_version_id_old = 1,
|
299 | 4cf3e6f3 | Alex Williamson | .fields = (VMStateField []) { |
300 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(up, struct pci_status),
|
301 | 4cf3e6f3 | Alex Williamson | VMSTATE_UINT32(down, struct pci_status),
|
302 | 4cf3e6f3 | Alex Williamson | VMSTATE_END_OF_LIST() |
303 | 4cf3e6f3 | Alex Williamson | } |
304 | 4cf3e6f3 | Alex Williamson | }; |
305 | 4cf3e6f3 | Alex Williamson | |
306 | 93d89f63 | Isaku Yamahata | static const VMStateDescription vmstate_acpi = { |
307 | 93d89f63 | Isaku Yamahata | .name = "piix4_pm",
|
308 | 4cf3e6f3 | Alex Williamson | .version_id = 2,
|
309 | 93d89f63 | Isaku Yamahata | .minimum_version_id = 1,
|
310 | 93d89f63 | Isaku Yamahata | .minimum_version_id_old = 1,
|
311 | 93d89f63 | Isaku Yamahata | .post_load = vmstate_acpi_post_load, |
312 | 93d89f63 | Isaku Yamahata | .fields = (VMStateField []) { |
313 | 93d89f63 | Isaku Yamahata | VMSTATE_PCI_DEVICE(dev, PIIX4PMState), |
314 | 93d89f63 | Isaku Yamahata | VMSTATE_UINT16(pmsts, PIIX4PMState), |
315 | 93d89f63 | Isaku Yamahata | VMSTATE_UINT16(pmen, PIIX4PMState), |
316 | 93d89f63 | Isaku Yamahata | VMSTATE_UINT16(pmcntrl, PIIX4PMState), |
317 | 93d89f63 | Isaku Yamahata | VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
|
318 | 93d89f63 | Isaku Yamahata | VMSTATE_TIMER(tmr_timer, PIIX4PMState), |
319 | 93d89f63 | Isaku Yamahata | VMSTATE_INT64(tmr_overflow_time, PIIX4PMState), |
320 | 4cf3e6f3 | Alex Williamson | VMSTATE_STRUCT(gpe, PIIX4PMState, 2, vmstate_gpe, struct gpe_regs), |
321 | 4cf3e6f3 | Alex Williamson | VMSTATE_STRUCT(pci0_status, PIIX4PMState, 2, vmstate_pci_status,
|
322 | 4cf3e6f3 | Alex Williamson | struct pci_status),
|
323 | 93d89f63 | Isaku Yamahata | VMSTATE_END_OF_LIST() |
324 | 93d89f63 | Isaku Yamahata | } |
325 | 93d89f63 | Isaku Yamahata | }; |
326 | 93d89f63 | Isaku Yamahata | |
327 | 668643b0 | Marcelo Tosatti | static void piix4_update_hotplug(PIIX4PMState *s) |
328 | 668643b0 | Marcelo Tosatti | { |
329 | 668643b0 | Marcelo Tosatti | PCIDevice *dev = &s->dev; |
330 | 668643b0 | Marcelo Tosatti | BusState *bus = qdev_get_parent_bus(&dev->qdev); |
331 | 668643b0 | Marcelo Tosatti | DeviceState *qdev, *next; |
332 | 668643b0 | Marcelo Tosatti | |
333 | 668643b0 | Marcelo Tosatti | s->pci0_hotplug_enable = ~0;
|
334 | 668643b0 | Marcelo Tosatti | |
335 | 668643b0 | Marcelo Tosatti | QLIST_FOREACH_SAFE(qdev, &bus->children, sibling, next) { |
336 | 668643b0 | Marcelo Tosatti | PCIDeviceInfo *info = container_of(qdev->info, PCIDeviceInfo, qdev); |
337 | 668643b0 | Marcelo Tosatti | PCIDevice *pdev = DO_UPCAST(PCIDevice, qdev, qdev); |
338 | 668643b0 | Marcelo Tosatti | int slot = PCI_SLOT(pdev->devfn);
|
339 | 668643b0 | Marcelo Tosatti | |
340 | 668643b0 | Marcelo Tosatti | if (info->no_hotplug) {
|
341 | 668643b0 | Marcelo Tosatti | s->pci0_hotplug_enable &= ~(1 << slot);
|
342 | 668643b0 | Marcelo Tosatti | } |
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 | 93d89f63 | Isaku Yamahata | if (!s) {
|
368 | 93d89f63 | Isaku Yamahata | qemu_system_shutdown_request(); |
369 | 93d89f63 | Isaku Yamahata | } else if (s->pmen & ACPI_BITMASK_POWER_BUTTON_ENABLE) { |
370 | 93d89f63 | Isaku Yamahata | s->pmsts |= ACPI_BITMASK_POWER_BUTTON_STATUS; |
371 | 93d89f63 | Isaku Yamahata | pm_update_sci(s); |
372 | 93d89f63 | Isaku Yamahata | } |
373 | 93d89f63 | Isaku Yamahata | } |
374 | 93d89f63 | Isaku Yamahata | |
375 | e8ec0571 | Isaku Yamahata | static int piix4_pm_initfn(PCIDevice *dev) |
376 | 93d89f63 | Isaku Yamahata | { |
377 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, dev); |
378 | 93d89f63 | Isaku Yamahata | uint8_t *pci_conf; |
379 | 93d89f63 | Isaku Yamahata | |
380 | 93d89f63 | Isaku Yamahata | pci_conf = s->dev.config; |
381 | 93d89f63 | Isaku Yamahata | pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL); |
382 | 93d89f63 | Isaku Yamahata | pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82371AB_3); |
383 | 93d89f63 | Isaku Yamahata | pci_conf[0x06] = 0x80; |
384 | 93d89f63 | Isaku Yamahata | pci_conf[0x07] = 0x02; |
385 | 93d89f63 | Isaku Yamahata | pci_conf[0x08] = 0x03; // revision number |
386 | 93d89f63 | Isaku Yamahata | pci_conf[0x09] = 0x00; |
387 | 93d89f63 | Isaku Yamahata | pci_config_set_class(pci_conf, PCI_CLASS_BRIDGE_OTHER); |
388 | 93d89f63 | Isaku Yamahata | pci_conf[0x3d] = 0x01; // interrupt pin 1 |
389 | 93d89f63 | Isaku Yamahata | |
390 | 93d89f63 | Isaku Yamahata | pci_conf[0x40] = 0x01; /* PM io base read only bit */ |
391 | 93d89f63 | Isaku Yamahata | |
392 | 93d89f63 | Isaku Yamahata | /* APM */
|
393 | 93d89f63 | Isaku Yamahata | apm_init(&s->apm, apm_ctrl_changed, s); |
394 | 93d89f63 | Isaku Yamahata | |
395 | 93d89f63 | Isaku Yamahata | register_ioport_write(ACPI_DBG_IO_ADDR, 4, 4, acpi_dbg_writel, s); |
396 | 93d89f63 | Isaku Yamahata | |
397 | 93d89f63 | Isaku Yamahata | if (s->kvm_enabled) {
|
398 | 93d89f63 | Isaku Yamahata | /* Mark SMM as already inited to prevent SMM from running. KVM does not
|
399 | 93d89f63 | Isaku Yamahata | * support SMM mode. */
|
400 | 93d89f63 | Isaku Yamahata | pci_conf[0x5B] = 0x02; |
401 | 93d89f63 | Isaku Yamahata | } |
402 | 93d89f63 | Isaku Yamahata | |
403 | 93d89f63 | Isaku Yamahata | /* XXX: which specification is used ? The i82731AB has different
|
404 | 93d89f63 | Isaku Yamahata | mappings */
|
405 | 93d89f63 | Isaku Yamahata | pci_conf[0x5f] = (parallel_hds[0] != NULL ? 0x80 : 0) | 0x10; |
406 | 93d89f63 | Isaku Yamahata | pci_conf[0x63] = 0x60; |
407 | 93d89f63 | Isaku Yamahata | pci_conf[0x67] = (serial_hds[0] != NULL ? 0x08 : 0) | |
408 | 93d89f63 | Isaku Yamahata | (serial_hds[1] != NULL ? 0x90 : 0); |
409 | 93d89f63 | Isaku Yamahata | |
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 | 93d89f63 | Isaku Yamahata | s->tmr_timer = qemu_new_timer(vm_clock, pm_tmr_timer, s); |
417 | 93d89f63 | Isaku Yamahata | |
418 | 93d89f63 | Isaku Yamahata | qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1);
|
419 | 93d89f63 | Isaku Yamahata | |
420 | e8ec0571 | Isaku Yamahata | pm_smbus_init(&s->dev.qdev, &s->smb); |
421 | e8ec0571 | Isaku Yamahata | qemu_register_reset(piix4_reset, s); |
422 | ac404095 | Isaku Yamahata | piix4_acpi_system_hot_add_init(dev->bus, s); |
423 | e8ec0571 | Isaku Yamahata | |
424 | e8ec0571 | Isaku Yamahata | return 0; |
425 | e8ec0571 | Isaku Yamahata | } |
426 | e8ec0571 | Isaku Yamahata | |
427 | e8ec0571 | Isaku Yamahata | i2c_bus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
|
428 | e8ec0571 | Isaku Yamahata | qemu_irq sci_irq, qemu_irq cmos_s3, qemu_irq smi_irq, |
429 | e8ec0571 | Isaku Yamahata | int kvm_enabled)
|
430 | e8ec0571 | Isaku Yamahata | { |
431 | e8ec0571 | Isaku Yamahata | PCIDevice *dev; |
432 | e8ec0571 | Isaku Yamahata | PIIX4PMState *s; |
433 | e8ec0571 | Isaku Yamahata | |
434 | e8ec0571 | Isaku Yamahata | dev = pci_create(bus, devfn, "PIIX4_PM");
|
435 | e8ec0571 | Isaku Yamahata | qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
|
436 | 93d89f63 | Isaku Yamahata | |
437 | e8ec0571 | Isaku Yamahata | s = DO_UPCAST(PIIX4PMState, dev, dev); |
438 | 93d89f63 | Isaku Yamahata | s->irq = sci_irq; |
439 | 93d89f63 | Isaku Yamahata | s->cmos_s3 = cmos_s3; |
440 | 93d89f63 | Isaku Yamahata | s->smi_irq = smi_irq; |
441 | e8ec0571 | Isaku Yamahata | s->kvm_enabled = kvm_enabled; |
442 | e8ec0571 | Isaku Yamahata | |
443 | e8ec0571 | Isaku Yamahata | qdev_init_nofail(&dev->qdev); |
444 | 93d89f63 | Isaku Yamahata | |
445 | 93d89f63 | Isaku Yamahata | return s->smb.smbus;
|
446 | 93d89f63 | Isaku Yamahata | } |
447 | 93d89f63 | Isaku Yamahata | |
448 | e8ec0571 | Isaku Yamahata | static PCIDeviceInfo piix4_pm_info = {
|
449 | e8ec0571 | Isaku Yamahata | .qdev.name = "PIIX4_PM",
|
450 | e8ec0571 | Isaku Yamahata | .qdev.desc = "PM",
|
451 | e8ec0571 | Isaku Yamahata | .qdev.size = sizeof(PIIX4PMState),
|
452 | e8ec0571 | Isaku Yamahata | .qdev.vmsd = &vmstate_acpi, |
453 | 0965f12d | Gerd Hoffmann | .qdev.no_user = 1,
|
454 | 0965f12d | Gerd Hoffmann | .no_hotplug = 1,
|
455 | e8ec0571 | Isaku Yamahata | .init = piix4_pm_initfn, |
456 | e8ec0571 | Isaku Yamahata | .config_write = pm_write_config, |
457 | e8ec0571 | Isaku Yamahata | .qdev.props = (Property[]) { |
458 | e8ec0571 | Isaku Yamahata | DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0), |
459 | e8ec0571 | Isaku Yamahata | DEFINE_PROP_END_OF_LIST(), |
460 | e8ec0571 | Isaku Yamahata | } |
461 | e8ec0571 | Isaku Yamahata | }; |
462 | e8ec0571 | Isaku Yamahata | |
463 | e8ec0571 | Isaku Yamahata | static void piix4_pm_register(void) |
464 | e8ec0571 | Isaku Yamahata | { |
465 | e8ec0571 | Isaku Yamahata | pci_qdev_register(&piix4_pm_info); |
466 | e8ec0571 | Isaku Yamahata | } |
467 | e8ec0571 | Isaku Yamahata | |
468 | e8ec0571 | Isaku Yamahata | device_init(piix4_pm_register); |
469 | e8ec0571 | Isaku Yamahata | |
470 | 93d89f63 | Isaku Yamahata | static uint32_t gpe_read_val(uint16_t val, uint32_t addr)
|
471 | 93d89f63 | Isaku Yamahata | { |
472 | 93d89f63 | Isaku Yamahata | if (addr & 1) |
473 | 93d89f63 | Isaku Yamahata | return (val >> 8) & 0xff; |
474 | 93d89f63 | Isaku Yamahata | return val & 0xff; |
475 | 93d89f63 | Isaku Yamahata | } |
476 | 93d89f63 | Isaku Yamahata | |
477 | 93d89f63 | Isaku Yamahata | static uint32_t gpe_readb(void *opaque, uint32_t addr) |
478 | 93d89f63 | Isaku Yamahata | { |
479 | 93d89f63 | Isaku Yamahata | uint32_t val = 0;
|
480 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
481 | 633aa0ac | Gleb Natapov | struct gpe_regs *g = &s->gpe;
|
482 | 633aa0ac | Gleb Natapov | |
483 | 93d89f63 | Isaku Yamahata | switch (addr) {
|
484 | 93d89f63 | Isaku Yamahata | case GPE_BASE:
|
485 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 1: |
486 | 93d89f63 | Isaku Yamahata | val = gpe_read_val(g->sts, addr); |
487 | 93d89f63 | Isaku Yamahata | break;
|
488 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 2: |
489 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 3: |
490 | 93d89f63 | Isaku Yamahata | val = gpe_read_val(g->en, addr); |
491 | 93d89f63 | Isaku Yamahata | break;
|
492 | 93d89f63 | Isaku Yamahata | default:
|
493 | 93d89f63 | Isaku Yamahata | break;
|
494 | 93d89f63 | Isaku Yamahata | } |
495 | 93d89f63 | Isaku Yamahata | |
496 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe read %x == %x\n", addr, val);
|
497 | 93d89f63 | Isaku Yamahata | return val;
|
498 | 93d89f63 | Isaku Yamahata | } |
499 | 93d89f63 | Isaku Yamahata | |
500 | 93d89f63 | Isaku Yamahata | static void gpe_write_val(uint16_t *cur, int addr, uint32_t val) |
501 | 93d89f63 | Isaku Yamahata | { |
502 | 93d89f63 | Isaku Yamahata | if (addr & 1) |
503 | 93d89f63 | Isaku Yamahata | *cur = (*cur & 0xff) | (val << 8); |
504 | 93d89f63 | Isaku Yamahata | else
|
505 | 93d89f63 | Isaku Yamahata | *cur = (*cur & 0xff00) | (val & 0xff); |
506 | 93d89f63 | Isaku Yamahata | } |
507 | 93d89f63 | Isaku Yamahata | |
508 | 93d89f63 | Isaku Yamahata | static void gpe_reset_val(uint16_t *cur, int addr, uint32_t val) |
509 | 93d89f63 | Isaku Yamahata | { |
510 | 93d89f63 | Isaku Yamahata | uint16_t x1, x0 = val & 0xff;
|
511 | 93d89f63 | Isaku Yamahata | int shift = (addr & 1) ? 8 : 0; |
512 | 93d89f63 | Isaku Yamahata | |
513 | 93d89f63 | Isaku Yamahata | x1 = (*cur >> shift) & 0xff;
|
514 | 93d89f63 | Isaku Yamahata | |
515 | 93d89f63 | Isaku Yamahata | x1 = x1 & ~x0; |
516 | 93d89f63 | Isaku Yamahata | |
517 | 93d89f63 | Isaku Yamahata | *cur = (*cur & (0xff << (8 - shift))) | (x1 << shift); |
518 | 93d89f63 | Isaku Yamahata | } |
519 | 93d89f63 | Isaku Yamahata | |
520 | 93d89f63 | Isaku Yamahata | static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val) |
521 | 93d89f63 | Isaku Yamahata | { |
522 | 633aa0ac | Gleb Natapov | PIIX4PMState *s = opaque; |
523 | 633aa0ac | Gleb Natapov | struct gpe_regs *g = &s->gpe;
|
524 | 633aa0ac | Gleb Natapov | |
525 | 93d89f63 | Isaku Yamahata | switch (addr) {
|
526 | 93d89f63 | Isaku Yamahata | case GPE_BASE:
|
527 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 1: |
528 | 93d89f63 | Isaku Yamahata | gpe_reset_val(&g->sts, addr, val); |
529 | 93d89f63 | Isaku Yamahata | break;
|
530 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 2: |
531 | 93d89f63 | Isaku Yamahata | case GPE_BASE + 3: |
532 | 93d89f63 | Isaku Yamahata | gpe_write_val(&g->en, addr, val); |
533 | 93d89f63 | Isaku Yamahata | break;
|
534 | 93d89f63 | Isaku Yamahata | default:
|
535 | 93d89f63 | Isaku Yamahata | break;
|
536 | 633aa0ac | Gleb Natapov | } |
537 | 633aa0ac | Gleb Natapov | |
538 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
539 | 93d89f63 | Isaku Yamahata | |
540 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("gpe write %x <== %d\n", addr, val);
|
541 | 93d89f63 | Isaku Yamahata | } |
542 | 93d89f63 | Isaku Yamahata | |
543 | 93d89f63 | Isaku Yamahata | static uint32_t pcihotplug_read(void *opaque, uint32_t addr) |
544 | 93d89f63 | Isaku Yamahata | { |
545 | 93d89f63 | Isaku Yamahata | uint32_t val = 0;
|
546 | 93d89f63 | Isaku Yamahata | struct pci_status *g = opaque;
|
547 | 93d89f63 | Isaku Yamahata | switch (addr) {
|
548 | 93d89f63 | Isaku Yamahata | case PCI_BASE:
|
549 | 93d89f63 | Isaku Yamahata | val = g->up; |
550 | 93d89f63 | Isaku Yamahata | break;
|
551 | 93d89f63 | Isaku Yamahata | case PCI_BASE + 4: |
552 | 93d89f63 | Isaku Yamahata | val = g->down; |
553 | 93d89f63 | Isaku Yamahata | break;
|
554 | 93d89f63 | Isaku Yamahata | default:
|
555 | 93d89f63 | Isaku Yamahata | break;
|
556 | 93d89f63 | Isaku Yamahata | } |
557 | 93d89f63 | Isaku Yamahata | |
558 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pcihotplug read %x == %x\n", addr, val);
|
559 | 93d89f63 | Isaku Yamahata | return val;
|
560 | 93d89f63 | Isaku Yamahata | } |
561 | 93d89f63 | Isaku Yamahata | |
562 | 93d89f63 | Isaku Yamahata | static void pcihotplug_write(void *opaque, uint32_t addr, uint32_t val) |
563 | 93d89f63 | Isaku Yamahata | { |
564 | 93d89f63 | Isaku Yamahata | struct pci_status *g = opaque;
|
565 | 93d89f63 | Isaku Yamahata | switch (addr) {
|
566 | 93d89f63 | Isaku Yamahata | case PCI_BASE:
|
567 | 93d89f63 | Isaku Yamahata | g->up = val; |
568 | 93d89f63 | Isaku Yamahata | break;
|
569 | 93d89f63 | Isaku Yamahata | case PCI_BASE + 4: |
570 | 93d89f63 | Isaku Yamahata | g->down = val; |
571 | 93d89f63 | Isaku Yamahata | break;
|
572 | 93d89f63 | Isaku Yamahata | } |
573 | 93d89f63 | Isaku Yamahata | |
574 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pcihotplug write %x <== %d\n", addr, val);
|
575 | 93d89f63 | Isaku Yamahata | } |
576 | 93d89f63 | Isaku Yamahata | |
577 | 93d89f63 | Isaku Yamahata | static uint32_t pciej_read(void *opaque, uint32_t addr) |
578 | 93d89f63 | Isaku Yamahata | { |
579 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pciej read %x\n", addr);
|
580 | 93d89f63 | Isaku Yamahata | return 0; |
581 | 93d89f63 | Isaku Yamahata | } |
582 | 93d89f63 | Isaku Yamahata | |
583 | 93d89f63 | Isaku Yamahata | static void pciej_write(void *opaque, uint32_t addr, uint32_t val) |
584 | 93d89f63 | Isaku Yamahata | { |
585 | 93d89f63 | Isaku Yamahata | BusState *bus = opaque; |
586 | 93d89f63 | Isaku Yamahata | DeviceState *qdev, *next; |
587 | 93d89f63 | Isaku Yamahata | PCIDevice *dev; |
588 | 93d89f63 | Isaku Yamahata | int slot = ffs(val) - 1; |
589 | 93d89f63 | Isaku Yamahata | |
590 | 93d89f63 | Isaku Yamahata | QLIST_FOREACH_SAFE(qdev, &bus->children, sibling, next) { |
591 | 93d89f63 | Isaku Yamahata | dev = DO_UPCAST(PCIDevice, qdev, qdev); |
592 | 93d89f63 | Isaku Yamahata | if (PCI_SLOT(dev->devfn) == slot) {
|
593 | 93d89f63 | Isaku Yamahata | qdev_free(qdev); |
594 | 93d89f63 | Isaku Yamahata | } |
595 | 93d89f63 | Isaku Yamahata | } |
596 | 93d89f63 | Isaku Yamahata | |
597 | 93d89f63 | Isaku Yamahata | |
598 | 50d8ff8b | Isaku Yamahata | PIIX4_DPRINTF("pciej write %x <== %d\n", addr, val);
|
599 | 93d89f63 | Isaku Yamahata | } |
600 | 93d89f63 | Isaku Yamahata | |
601 | 668643b0 | Marcelo Tosatti | static uint32_t pcirmv_read(void *opaque, uint32_t addr) |
602 | 668643b0 | Marcelo Tosatti | { |
603 | 668643b0 | Marcelo Tosatti | PIIX4PMState *s = opaque; |
604 | 668643b0 | Marcelo Tosatti | |
605 | 668643b0 | Marcelo Tosatti | return s->pci0_hotplug_enable;
|
606 | 668643b0 | Marcelo Tosatti | } |
607 | 668643b0 | Marcelo Tosatti | |
608 | 668643b0 | Marcelo Tosatti | static void pcirmv_write(void *opaque, uint32_t addr, uint32_t val) |
609 | 668643b0 | Marcelo Tosatti | { |
610 | 668643b0 | Marcelo Tosatti | return;
|
611 | 668643b0 | Marcelo Tosatti | } |
612 | 668643b0 | Marcelo Tosatti | |
613 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
614 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state); |
615 | 93d89f63 | Isaku Yamahata | |
616 | ac404095 | Isaku Yamahata | static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s) |
617 | 93d89f63 | Isaku Yamahata | { |
618 | ac404095 | Isaku Yamahata | struct pci_status *pci0_status = &s->pci0_status;
|
619 | 93d89f63 | Isaku Yamahata | |
620 | 633aa0ac | Gleb Natapov | register_ioport_write(GPE_BASE, 4, 1, gpe_writeb, s); |
621 | 633aa0ac | Gleb Natapov | register_ioport_read(GPE_BASE, 4, 1, gpe_readb, s); |
622 | ac404095 | Isaku Yamahata | |
623 | ac404095 | Isaku Yamahata | register_ioport_write(PCI_BASE, 8, 4, pcihotplug_write, pci0_status); |
624 | ac404095 | Isaku Yamahata | register_ioport_read(PCI_BASE, 8, 4, pcihotplug_read, pci0_status); |
625 | 93d89f63 | Isaku Yamahata | |
626 | 93d89f63 | Isaku Yamahata | register_ioport_write(PCI_EJ_BASE, 4, 4, pciej_write, bus); |
627 | 93d89f63 | Isaku Yamahata | register_ioport_read(PCI_EJ_BASE, 4, 4, pciej_read, bus); |
628 | 93d89f63 | Isaku Yamahata | |
629 | 668643b0 | Marcelo Tosatti | register_ioport_write(PCI_RMV_BASE, 4, 4, pcirmv_write, s); |
630 | 668643b0 | Marcelo Tosatti | register_ioport_read(PCI_RMV_BASE, 4, 4, pcirmv_read, s); |
631 | 668643b0 | Marcelo Tosatti | |
632 | ac404095 | Isaku Yamahata | pci_bus_hotplug(bus, piix4_device_hotplug, &s->dev.qdev); |
633 | 93d89f63 | Isaku Yamahata | } |
634 | 93d89f63 | Isaku Yamahata | |
635 | ac404095 | Isaku Yamahata | static void enable_device(PIIX4PMState *s, int slot) |
636 | 93d89f63 | Isaku Yamahata | { |
637 | 4441a287 | Gleb Natapov | s->gpe.sts |= PIIX4_PCI_HOTPLUG_STATUS; |
638 | ac404095 | Isaku Yamahata | s->pci0_status.up |= (1 << slot);
|
639 | 93d89f63 | Isaku Yamahata | } |
640 | 93d89f63 | Isaku Yamahata | |
641 | ac404095 | Isaku Yamahata | static void disable_device(PIIX4PMState *s, int slot) |
642 | 93d89f63 | Isaku Yamahata | { |
643 | 4441a287 | Gleb Natapov | s->gpe.sts |= PIIX4_PCI_HOTPLUG_STATUS; |
644 | ac404095 | Isaku Yamahata | s->pci0_status.down |= (1 << slot);
|
645 | 93d89f63 | Isaku Yamahata | } |
646 | 93d89f63 | Isaku Yamahata | |
647 | 4cff0a59 | Michael S. Tsirkin | static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev, |
648 | 4cff0a59 | Michael S. Tsirkin | PCIHotplugState state) |
649 | 93d89f63 | Isaku Yamahata | { |
650 | 93d89f63 | Isaku Yamahata | int slot = PCI_SLOT(dev->devfn);
|
651 | ac404095 | Isaku Yamahata | PIIX4PMState *s = DO_UPCAST(PIIX4PMState, dev, |
652 | ac404095 | Isaku Yamahata | DO_UPCAST(PCIDevice, qdev, qdev)); |
653 | 93d89f63 | Isaku Yamahata | |
654 | 4cff0a59 | Michael S. Tsirkin | /* Don't send event when device is enabled during qemu machine creation:
|
655 | 4cff0a59 | Michael S. Tsirkin | * it is present on boot, no hotplug event is necessary. We do send an
|
656 | 4cff0a59 | Michael S. Tsirkin | * event when the device is disabled later. */
|
657 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_COLDPLUG_ENABLED) {
|
658 | 5beb8ad5 | Isaku Yamahata | return 0; |
659 | 4cff0a59 | Michael S. Tsirkin | } |
660 | 5beb8ad5 | Isaku Yamahata | |
661 | ac404095 | Isaku Yamahata | s->pci0_status.up = 0;
|
662 | ac404095 | Isaku Yamahata | s->pci0_status.down = 0;
|
663 | 4cff0a59 | Michael S. Tsirkin | if (state == PCI_HOTPLUG_ENABLED) {
|
664 | ac404095 | Isaku Yamahata | enable_device(s, slot); |
665 | ac404095 | Isaku Yamahata | } else {
|
666 | ac404095 | Isaku Yamahata | disable_device(s, slot); |
667 | ac404095 | Isaku Yamahata | } |
668 | 633aa0ac | Gleb Natapov | |
669 | 633aa0ac | Gleb Natapov | pm_update_sci(s); |
670 | 633aa0ac | Gleb Natapov | |
671 | 93d89f63 | Isaku Yamahata | return 0; |
672 | 93d89f63 | Isaku Yamahata | } |