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1 | 502a5395 | pbrook | /*
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2 | 502a5395 | pbrook | * QEMU i440FX/PIIX3 PCI Bridge Emulation
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3 | 502a5395 | pbrook | *
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4 | 502a5395 | pbrook | * Copyright (c) 2006 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 502a5395 | pbrook | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 502a5395 | pbrook | * of this software and associated documentation files (the "Software"), to deal
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8 | 502a5395 | pbrook | * in the Software without restriction, including without limitation the rights
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9 | 502a5395 | pbrook | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 502a5395 | pbrook | * copies of the Software, and to permit persons to whom the Software is
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11 | 502a5395 | pbrook | * furnished to do so, subject to the following conditions:
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12 | 502a5395 | pbrook | *
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13 | 502a5395 | pbrook | * The above copyright notice and this permission notice shall be included in
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14 | 502a5395 | pbrook | * all copies or substantial portions of the Software.
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15 | 502a5395 | pbrook | *
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16 | 502a5395 | pbrook | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 502a5395 | pbrook | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 502a5395 | pbrook | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 502a5395 | pbrook | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 502a5395 | pbrook | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 502a5395 | pbrook | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 502a5395 | pbrook | * THE SOFTWARE.
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23 | 502a5395 | pbrook | */
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24 | 502a5395 | pbrook | |
25 | 87ecb68b | pbrook | #include "hw.h" |
26 | 87ecb68b | pbrook | #include "pc.h" |
27 | 87ecb68b | pbrook | #include "pci.h" |
28 | 4f5e19e6 | Isaku Yamahata | #include "pci_host.h" |
29 | f75247f1 | Gerd Hoffmann | #include "isa.h" |
30 | 8a14daa5 | Gerd Hoffmann | #include "sysbus.h" |
31 | bf1b0071 | Blue Swirl | #include "range.h" |
32 | 41445300 | Anthony PERARD | #include "xen.h" |
33 | 87ecb68b | pbrook | |
34 | 56594fe3 | Isaku Yamahata | /*
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35 | 56594fe3 | Isaku Yamahata | * I440FX chipset data sheet.
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36 | 56594fe3 | Isaku Yamahata | * http://download.intel.com/design/chipsets/datashts/29054901.pdf
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37 | 56594fe3 | Isaku Yamahata | */
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38 | 56594fe3 | Isaku Yamahata | |
39 | 502a5395 | pbrook | typedef PCIHostState I440FXState;
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40 | 502a5395 | pbrook | |
41 | ab431c28 | Isaku Yamahata | #define PIIX_NUM_PIC_IRQS 16 /* i8259 * 2 */ |
42 | e735b55a | Isaku Yamahata | #define PIIX_NUM_PIRQS 4ULL /* PIRQ[A-D] */ |
43 | bf09551a | Stefano Stabellini | #define XEN_PIIX_NUM_PIRQS 128ULL |
44 | ab431c28 | Isaku Yamahata | #define PIIX_PIRQC 0x60 |
45 | e735b55a | Isaku Yamahata | |
46 | fd37d881 | Juan Quintela | typedef struct PIIX3State { |
47 | fd37d881 | Juan Quintela | PCIDevice dev; |
48 | ab431c28 | Isaku Yamahata | |
49 | ab431c28 | Isaku Yamahata | /*
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50 | ab431c28 | Isaku Yamahata | * bitmap to track pic levels.
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51 | ab431c28 | Isaku Yamahata | * The pic level is the logical OR of all the PCI irqs mapped to it
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52 | ab431c28 | Isaku Yamahata | * So one PIC level is tracked by PIIX_NUM_PIRQS bits.
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53 | ab431c28 | Isaku Yamahata | *
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54 | ab431c28 | Isaku Yamahata | * PIRQ is mapped to PIC pins, we track it by
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55 | ab431c28 | Isaku Yamahata | * PIIX_NUM_PIRQS * PIIX_NUM_PIC_IRQS = 64 bits with
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56 | ab431c28 | Isaku Yamahata | * pic_irq * PIIX_NUM_PIRQS + pirq
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57 | ab431c28 | Isaku Yamahata | */
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58 | ab431c28 | Isaku Yamahata | #if PIIX_NUM_PIC_IRQS * PIIX_NUM_PIRQS > 64 |
59 | ab431c28 | Isaku Yamahata | #error "unable to encode pic state in 64bit in pic_levels." |
60 | ab431c28 | Isaku Yamahata | #endif
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61 | ab431c28 | Isaku Yamahata | uint64_t pic_levels; |
62 | ab431c28 | Isaku Yamahata | |
63 | bd7dce87 | Juan Quintela | qemu_irq *pic; |
64 | e735b55a | Isaku Yamahata | |
65 | e735b55a | Isaku Yamahata | /* This member isn't used. Just for save/load compatibility */
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66 | e735b55a | Isaku Yamahata | int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS]; |
67 | 7cd9eee0 | Gerd Hoffmann | } PIIX3State; |
68 | bd7dce87 | Juan Quintela | |
69 | ae0a5466 | Avi Kivity | typedef struct PAMMemoryRegion { |
70 | ae0a5466 | Avi Kivity | MemoryRegion mem; |
71 | ae0a5466 | Avi Kivity | bool initialized;
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72 | ae0a5466 | Avi Kivity | } PAMMemoryRegion; |
73 | ae0a5466 | Avi Kivity | |
74 | 0a3bacf3 | Juan Quintela | struct PCII440FXState {
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75 | 0a3bacf3 | Juan Quintela | PCIDevice dev; |
76 | ae0a5466 | Avi Kivity | MemoryRegion *system_memory; |
77 | ae0a5466 | Avi Kivity | MemoryRegion *pci_address_space; |
78 | ae0a5466 | Avi Kivity | MemoryRegion *ram_memory; |
79 | ae0a5466 | Avi Kivity | MemoryRegion pci_hole; |
80 | ae0a5466 | Avi Kivity | MemoryRegion pci_hole_64bit; |
81 | ae0a5466 | Avi Kivity | PAMMemoryRegion pam_regions[13];
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82 | ae0a5466 | Avi Kivity | MemoryRegion smram_region; |
83 | 6c009fa4 | Juan Quintela | uint8_t smm_enabled; |
84 | ae0a5466 | Avi Kivity | bool smram_enabled;
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85 | 7cd9eee0 | Gerd Hoffmann | PIIX3State *piix3; |
86 | 0a3bacf3 | Juan Quintela | }; |
87 | 0a3bacf3 | Juan Quintela | |
88 | f2c688bb | Isaku Yamahata | |
89 | f2c688bb | Isaku Yamahata | #define I440FX_PAM 0x59 |
90 | f2c688bb | Isaku Yamahata | #define I440FX_PAM_SIZE 7 |
91 | f2c688bb | Isaku Yamahata | #define I440FX_SMRAM 0x72 |
92 | f2c688bb | Isaku Yamahata | |
93 | ab431c28 | Isaku Yamahata | static void piix3_set_irq(void *opaque, int pirq, int level); |
94 | bf09551a | Stefano Stabellini | static void piix3_write_config_xen(PCIDevice *dev, |
95 | bf09551a | Stefano Stabellini | uint32_t address, uint32_t val, int len);
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96 | d2b59317 | pbrook | |
97 | d2b59317 | pbrook | /* return the global irq number corresponding to a given device irq
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98 | d2b59317 | pbrook | pin. We could also use the bus number to have a more precise
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99 | d2b59317 | pbrook | mapping. */
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100 | ab431c28 | Isaku Yamahata | static int pci_slot_get_pirq(PCIDevice *pci_dev, int pci_intx) |
101 | d2b59317 | pbrook | { |
102 | d2b59317 | pbrook | int slot_addend;
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103 | d2b59317 | pbrook | slot_addend = (pci_dev->devfn >> 3) - 1; |
104 | ab431c28 | Isaku Yamahata | return (pci_intx + slot_addend) & 3; |
105 | d2b59317 | pbrook | } |
106 | 502a5395 | pbrook | |
107 | ae0a5466 | Avi Kivity | static void update_pam(PCII440FXState *d, uint32_t start, uint32_t end, int r, |
108 | ae0a5466 | Avi Kivity | PAMMemoryRegion *mem) |
109 | 84631fd7 | bellard | { |
110 | ae0a5466 | Avi Kivity | if (mem->initialized) {
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111 | ae0a5466 | Avi Kivity | memory_region_del_subregion(d->system_memory, &mem->mem); |
112 | ae0a5466 | Avi Kivity | memory_region_destroy(&mem->mem); |
113 | ae0a5466 | Avi Kivity | } |
114 | 84631fd7 | bellard | |
115 | 84631fd7 | bellard | // printf("ISA mapping %08x-0x%08x: %d\n", start, end, r);
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116 | 84631fd7 | bellard | switch(r) {
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117 | 84631fd7 | bellard | case 3: |
118 | 84631fd7 | bellard | /* RAM */
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119 | ae0a5466 | Avi Kivity | memory_region_init_alias(&mem->mem, "pam-ram", d->ram_memory,
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120 | ae0a5466 | Avi Kivity | start, end - start); |
121 | 84631fd7 | bellard | break;
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122 | 84631fd7 | bellard | case 1: |
123 | 84631fd7 | bellard | /* ROM (XXX: not quite correct) */
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124 | ae0a5466 | Avi Kivity | memory_region_init_alias(&mem->mem, "pam-rom", d->ram_memory,
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125 | ae0a5466 | Avi Kivity | start, end - start); |
126 | ae0a5466 | Avi Kivity | memory_region_set_readonly(&mem->mem, true);
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127 | 84631fd7 | bellard | break;
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128 | 84631fd7 | bellard | case 2: |
129 | 84631fd7 | bellard | case 0: |
130 | 84631fd7 | bellard | /* XXX: should distinguish read/write cases */
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131 | ae0a5466 | Avi Kivity | memory_region_init_alias(&mem->mem, "pam-pci", d->pci_address_space,
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132 | ae0a5466 | Avi Kivity | start, end - start); |
133 | 84631fd7 | bellard | break;
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134 | 84631fd7 | bellard | } |
135 | ae0a5466 | Avi Kivity | memory_region_add_subregion_overlap(d->system_memory, |
136 | ae0a5466 | Avi Kivity | start, &mem->mem, 1);
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137 | ae0a5466 | Avi Kivity | mem->initialized = true;
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138 | 84631fd7 | bellard | } |
139 | ee0ea1d0 | bellard | |
140 | 0a3bacf3 | Juan Quintela | static void i440fx_update_memory_mappings(PCII440FXState *d) |
141 | ee0ea1d0 | bellard | { |
142 | ee0ea1d0 | bellard | int i, r;
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143 | ae0a5466 | Avi Kivity | uint32_t smram; |
144 | 84631fd7 | bellard | |
145 | 72124c01 | Avi Kivity | memory_region_transaction_begin(); |
146 | ae0a5466 | Avi Kivity | update_pam(d, 0xf0000, 0x100000, (d->dev.config[I440FX_PAM] >> 4) & 3, |
147 | ae0a5466 | Avi Kivity | &d->pam_regions[0]);
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148 | 84631fd7 | bellard | for(i = 0; i < 12; i++) { |
149 | f2c688bb | Isaku Yamahata | r = (d->dev.config[(i >> 1) + (I440FX_PAM + 1)] >> ((i & 1) * 4)) & 3; |
150 | ae0a5466 | Avi Kivity | update_pam(d, 0xc0000 + 0x4000 * i, 0xc0000 + 0x4000 * (i + 1), r, |
151 | ae0a5466 | Avi Kivity | &d->pam_regions[i+1]);
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152 | ee0ea1d0 | bellard | } |
153 | f2c688bb | Isaku Yamahata | smram = d->dev.config[I440FX_SMRAM]; |
154 | 6c009fa4 | Juan Quintela | if ((d->smm_enabled && (smram & 0x08)) || (smram & 0x40)) { |
155 | ae0a5466 | Avi Kivity | if (!d->smram_enabled) {
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156 | ae0a5466 | Avi Kivity | memory_region_del_subregion(d->system_memory, &d->smram_region); |
157 | ae0a5466 | Avi Kivity | d->smram_enabled = true;
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158 | ae0a5466 | Avi Kivity | } |
159 | 84631fd7 | bellard | } else {
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160 | ae0a5466 | Avi Kivity | if (d->smram_enabled) {
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161 | ae0a5466 | Avi Kivity | memory_region_add_subregion_overlap(d->system_memory, 0xa0000,
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162 | ae0a5466 | Avi Kivity | &d->smram_region, 1);
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163 | ae0a5466 | Avi Kivity | d->smram_enabled = false;
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164 | ee0ea1d0 | bellard | } |
165 | ee0ea1d0 | bellard | } |
166 | 72124c01 | Avi Kivity | memory_region_transaction_commit(); |
167 | ee0ea1d0 | bellard | } |
168 | ee0ea1d0 | bellard | |
169 | f885f1ea | Isaku Yamahata | static void i440fx_set_smm(int val, void *arg) |
170 | ee0ea1d0 | bellard | { |
171 | f885f1ea | Isaku Yamahata | PCII440FXState *d = arg; |
172 | f885f1ea | Isaku Yamahata | |
173 | ee0ea1d0 | bellard | val = (val != 0);
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174 | 6c009fa4 | Juan Quintela | if (d->smm_enabled != val) {
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175 | 6c009fa4 | Juan Quintela | d->smm_enabled = val; |
176 | ee0ea1d0 | bellard | i440fx_update_memory_mappings(d); |
177 | ee0ea1d0 | bellard | } |
178 | ee0ea1d0 | bellard | } |
179 | ee0ea1d0 | bellard | |
180 | ee0ea1d0 | bellard | |
181 | 0a3bacf3 | Juan Quintela | static void i440fx_write_config(PCIDevice *dev, |
182 | ee0ea1d0 | bellard | uint32_t address, uint32_t val, int len)
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183 | ee0ea1d0 | bellard | { |
184 | 0a3bacf3 | Juan Quintela | PCII440FXState *d = DO_UPCAST(PCII440FXState, dev, dev); |
185 | 0a3bacf3 | Juan Quintela | |
186 | ee0ea1d0 | bellard | /* XXX: implement SMRAM.D_LOCK */
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187 | 0a3bacf3 | Juan Quintela | pci_default_write_config(dev, address, val, len); |
188 | 4da5fcd3 | Isaku Yamahata | if (ranges_overlap(address, len, I440FX_PAM, I440FX_PAM_SIZE) ||
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189 | 4da5fcd3 | Isaku Yamahata | range_covers_byte(address, len, I440FX_SMRAM)) { |
190 | ee0ea1d0 | bellard | i440fx_update_memory_mappings(d); |
191 | 4da5fcd3 | Isaku Yamahata | } |
192 | ee0ea1d0 | bellard | } |
193 | ee0ea1d0 | bellard | |
194 | 0c7d19e5 | Juan Quintela | static int i440fx_load_old(QEMUFile* f, void *opaque, int version_id) |
195 | ee0ea1d0 | bellard | { |
196 | 0a3bacf3 | Juan Quintela | PCII440FXState *d = opaque; |
197 | 52fc1d83 | balrog | int ret, i;
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198 | ee0ea1d0 | bellard | |
199 | 0a3bacf3 | Juan Quintela | ret = pci_device_load(&d->dev, f); |
200 | ee0ea1d0 | bellard | if (ret < 0) |
201 | ee0ea1d0 | bellard | return ret;
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202 | ee0ea1d0 | bellard | i440fx_update_memory_mappings(d); |
203 | 6c009fa4 | Juan Quintela | qemu_get_8s(f, &d->smm_enabled); |
204 | 52fc1d83 | balrog | |
205 | e735b55a | Isaku Yamahata | if (version_id == 2) { |
206 | e735b55a | Isaku Yamahata | for (i = 0; i < PIIX_NUM_PIRQS; i++) { |
207 | e735b55a | Isaku Yamahata | qemu_get_be32(f); /* dummy load for compatibility */
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208 | e735b55a | Isaku Yamahata | } |
209 | e735b55a | Isaku Yamahata | } |
210 | 52fc1d83 | balrog | |
211 | ee0ea1d0 | bellard | return 0; |
212 | ee0ea1d0 | bellard | } |
213 | ee0ea1d0 | bellard | |
214 | e59fb374 | Juan Quintela | static int i440fx_post_load(void *opaque, int version_id) |
215 | 0c7d19e5 | Juan Quintela | { |
216 | 0c7d19e5 | Juan Quintela | PCII440FXState *d = opaque; |
217 | 0c7d19e5 | Juan Quintela | |
218 | 0c7d19e5 | Juan Quintela | i440fx_update_memory_mappings(d); |
219 | 0c7d19e5 | Juan Quintela | return 0; |
220 | 0c7d19e5 | Juan Quintela | } |
221 | 0c7d19e5 | Juan Quintela | |
222 | 0c7d19e5 | Juan Quintela | static const VMStateDescription vmstate_i440fx = { |
223 | 0c7d19e5 | Juan Quintela | .name = "I440FX",
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224 | 0c7d19e5 | Juan Quintela | .version_id = 3,
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225 | 0c7d19e5 | Juan Quintela | .minimum_version_id = 3,
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226 | 0c7d19e5 | Juan Quintela | .minimum_version_id_old = 1,
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227 | 0c7d19e5 | Juan Quintela | .load_state_old = i440fx_load_old, |
228 | 752ff2fa | Juan Quintela | .post_load = i440fx_post_load, |
229 | 0c7d19e5 | Juan Quintela | .fields = (VMStateField []) { |
230 | 0c7d19e5 | Juan Quintela | VMSTATE_PCI_DEVICE(dev, PCII440FXState), |
231 | 0c7d19e5 | Juan Quintela | VMSTATE_UINT8(smm_enabled, PCII440FXState), |
232 | 0c7d19e5 | Juan Quintela | VMSTATE_END_OF_LIST() |
233 | 0c7d19e5 | Juan Quintela | } |
234 | 0c7d19e5 | Juan Quintela | }; |
235 | 0c7d19e5 | Juan Quintela | |
236 | 81a322d4 | Gerd Hoffmann | static int i440fx_pcihost_initfn(SysBusDevice *dev) |
237 | 502a5395 | pbrook | { |
238 | 8a14daa5 | Gerd Hoffmann | I440FXState *s = FROM_SYSBUS(I440FXState, dev); |
239 | 502a5395 | pbrook | |
240 | d0ed8076 | Avi Kivity | memory_region_init_io(&s->conf_mem, &pci_host_conf_le_ops, s, |
241 | d0ed8076 | Avi Kivity | "pci-conf-idx", 4); |
242 | d0ed8076 | Avi Kivity | sysbus_add_io(dev, 0xcf8, &s->conf_mem);
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243 | d0ed8076 | Avi Kivity | sysbus_init_ioports(&s->busdev, 0xcf8, 4); |
244 | d0ed8076 | Avi Kivity | |
245 | d0ed8076 | Avi Kivity | memory_region_init_io(&s->data_mem, &pci_host_data_le_ops, s, |
246 | d0ed8076 | Avi Kivity | "pci-conf-data", 4); |
247 | d0ed8076 | Avi Kivity | sysbus_add_io(dev, 0xcfc, &s->data_mem);
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248 | d0ed8076 | Avi Kivity | sysbus_init_ioports(&s->busdev, 0xcfc, 4); |
249 | 502a5395 | pbrook | |
250 | 81a322d4 | Gerd Hoffmann | return 0; |
251 | 8a14daa5 | Gerd Hoffmann | } |
252 | 502a5395 | pbrook | |
253 | 0a3bacf3 | Juan Quintela | static int i440fx_initfn(PCIDevice *dev) |
254 | 8a14daa5 | Gerd Hoffmann | { |
255 | 0a3bacf3 | Juan Quintela | PCII440FXState *d = DO_UPCAST(PCII440FXState, dev, dev); |
256 | ee0ea1d0 | bellard | |
257 | f2c688bb | Isaku Yamahata | d->dev.config[I440FX_SMRAM] = 0x02;
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258 | ee0ea1d0 | bellard | |
259 | f885f1ea | Isaku Yamahata | cpu_smm_register(&i440fx_set_smm, d); |
260 | 81a322d4 | Gerd Hoffmann | return 0; |
261 | 8a14daa5 | Gerd Hoffmann | } |
262 | 8a14daa5 | Gerd Hoffmann | |
263 | 41445300 | Anthony PERARD | static PCIBus *i440fx_common_init(const char *device_name, |
264 | 41445300 | Anthony PERARD | PCII440FXState **pi440fx_state, |
265 | 41445300 | Anthony PERARD | int *piix3_devfn,
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266 | 1e39101c | Avi Kivity | qemu_irq *pic, |
267 | aee97b84 | Avi Kivity | MemoryRegion *address_space_mem, |
268 | aee97b84 | Avi Kivity | MemoryRegion *address_space_io, |
269 | ae0a5466 | Avi Kivity | ram_addr_t ram_size, |
270 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole_start, |
271 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole_size, |
272 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole64_start, |
273 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole64_size, |
274 | ae0a5466 | Avi Kivity | MemoryRegion *pci_address_space, |
275 | ae0a5466 | Avi Kivity | MemoryRegion *ram_memory) |
276 | 8a14daa5 | Gerd Hoffmann | { |
277 | 8a14daa5 | Gerd Hoffmann | DeviceState *dev; |
278 | 8a14daa5 | Gerd Hoffmann | PCIBus *b; |
279 | 8a14daa5 | Gerd Hoffmann | PCIDevice *d; |
280 | 8a14daa5 | Gerd Hoffmann | I440FXState *s; |
281 | 7cd9eee0 | Gerd Hoffmann | PIIX3State *piix3; |
282 | ae0a5466 | Avi Kivity | PCII440FXState *f; |
283 | 8a14daa5 | Gerd Hoffmann | |
284 | 8a14daa5 | Gerd Hoffmann | dev = qdev_create(NULL, "i440FX-pcihost"); |
285 | 8a14daa5 | Gerd Hoffmann | s = FROM_SYSBUS(I440FXState, sysbus_from_qdev(dev)); |
286 | aee97b84 | Avi Kivity | s->address_space = address_space_mem; |
287 | ae0a5466 | Avi Kivity | b = pci_bus_new(&s->busdev.qdev, NULL, pci_address_space,
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288 | aee97b84 | Avi Kivity | address_space_io, 0);
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289 | 8a14daa5 | Gerd Hoffmann | s->bus = b; |
290 | e23a1b33 | Markus Armbruster | qdev_init_nofail(dev); |
291 | 8a14daa5 | Gerd Hoffmann | |
292 | 41445300 | Anthony PERARD | d = pci_create_simple(b, 0, device_name);
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293 | 0a3bacf3 | Juan Quintela | *pi440fx_state = DO_UPCAST(PCII440FXState, dev, d); |
294 | ae0a5466 | Avi Kivity | f = *pi440fx_state; |
295 | ae0a5466 | Avi Kivity | f->system_memory = address_space_mem; |
296 | ae0a5466 | Avi Kivity | f->pci_address_space = pci_address_space; |
297 | ae0a5466 | Avi Kivity | f->ram_memory = ram_memory; |
298 | ae0a5466 | Avi Kivity | memory_region_init_alias(&f->pci_hole, "pci-hole", f->pci_address_space,
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299 | ae0a5466 | Avi Kivity | pci_hole_start, pci_hole_size); |
300 | ae0a5466 | Avi Kivity | memory_region_add_subregion(f->system_memory, pci_hole_start, &f->pci_hole); |
301 | ae0a5466 | Avi Kivity | memory_region_init_alias(&f->pci_hole_64bit, "pci-hole64",
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302 | ae0a5466 | Avi Kivity | f->pci_address_space, |
303 | ae0a5466 | Avi Kivity | pci_hole64_start, pci_hole64_size); |
304 | ae0a5466 | Avi Kivity | if (pci_hole64_size) {
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305 | ae0a5466 | Avi Kivity | memory_region_add_subregion(f->system_memory, pci_hole64_start, |
306 | ae0a5466 | Avi Kivity | &f->pci_hole_64bit); |
307 | ae0a5466 | Avi Kivity | } |
308 | ae0a5466 | Avi Kivity | memory_region_init_alias(&f->smram_region, "smram-region",
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309 | ae0a5466 | Avi Kivity | f->pci_address_space, 0xa0000, 0x20000); |
310 | ae0a5466 | Avi Kivity | f->smram_enabled = true;
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311 | 8a14daa5 | Gerd Hoffmann | |
312 | bf09551a | Stefano Stabellini | /* Xen supports additional interrupt routes from the PCI devices to
|
313 | bf09551a | Stefano Stabellini | * the IOAPIC: the four pins of each PCI device on the bus are also
|
314 | bf09551a | Stefano Stabellini | * connected to the IOAPIC directly.
|
315 | bf09551a | Stefano Stabellini | * These additional routes can be discovered through ACPI. */
|
316 | bf09551a | Stefano Stabellini | if (xen_enabled()) {
|
317 | bf09551a | Stefano Stabellini | piix3 = DO_UPCAST(PIIX3State, dev, |
318 | bf09551a | Stefano Stabellini | pci_create_simple_multifunction(b, -1, true, "PIIX3-xen")); |
319 | bf09551a | Stefano Stabellini | pci_bus_irqs(b, xen_piix3_set_irq, xen_pci_slot_get_pirq, |
320 | bf09551a | Stefano Stabellini | piix3, XEN_PIIX_NUM_PIRQS); |
321 | bf09551a | Stefano Stabellini | } else {
|
322 | bf09551a | Stefano Stabellini | piix3 = DO_UPCAST(PIIX3State, dev, |
323 | bf09551a | Stefano Stabellini | pci_create_simple_multifunction(b, -1, true, "PIIX3")); |
324 | bf09551a | Stefano Stabellini | pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3, |
325 | bf09551a | Stefano Stabellini | PIIX_NUM_PIRQS); |
326 | bf09551a | Stefano Stabellini | } |
327 | 7cd9eee0 | Gerd Hoffmann | piix3->pic = pic; |
328 | 41445300 | Anthony PERARD | |
329 | 7cd9eee0 | Gerd Hoffmann | (*pi440fx_state)->piix3 = piix3; |
330 | 7cd9eee0 | Gerd Hoffmann | |
331 | 7cd9eee0 | Gerd Hoffmann | *piix3_devfn = piix3->dev.devfn; |
332 | 85a750ca | Juan Quintela | |
333 | ec5f92ce | Bernhard M. Wiedemann | ram_size = ram_size / 8 / 1024 / 1024; |
334 | ec5f92ce | Bernhard M. Wiedemann | if (ram_size > 255) |
335 | ec5f92ce | Bernhard M. Wiedemann | ram_size = 255;
|
336 | ec5f92ce | Bernhard M. Wiedemann | (*pi440fx_state)->dev.config[0x57]=ram_size;
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337 | ec5f92ce | Bernhard M. Wiedemann | |
338 | ae0a5466 | Avi Kivity | i440fx_update_memory_mappings(f); |
339 | ae0a5466 | Avi Kivity | |
340 | 502a5395 | pbrook | return b;
|
341 | 502a5395 | pbrook | } |
342 | 502a5395 | pbrook | |
343 | 41445300 | Anthony PERARD | PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn,
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344 | aee97b84 | Avi Kivity | qemu_irq *pic, |
345 | aee97b84 | Avi Kivity | MemoryRegion *address_space_mem, |
346 | aee97b84 | Avi Kivity | MemoryRegion *address_space_io, |
347 | ae0a5466 | Avi Kivity | ram_addr_t ram_size, |
348 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole_start, |
349 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole_size, |
350 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole64_start, |
351 | ae0a5466 | Avi Kivity | target_phys_addr_t pci_hole64_size, |
352 | ae0a5466 | Avi Kivity | MemoryRegion *pci_memory, MemoryRegion *ram_memory) |
353 | ae0a5466 | Avi Kivity | |
354 | 41445300 | Anthony PERARD | { |
355 | 41445300 | Anthony PERARD | PCIBus *b; |
356 | 41445300 | Anthony PERARD | |
357 | 1e39101c | Avi Kivity | b = i440fx_common_init("i440FX", pi440fx_state, piix3_devfn, pic,
|
358 | ae0a5466 | Avi Kivity | address_space_mem, address_space_io, ram_size, |
359 | ae0a5466 | Avi Kivity | pci_hole_start, pci_hole_size, |
360 | ae0a5466 | Avi Kivity | pci_hole64_size, pci_hole64_size, |
361 | ae0a5466 | Avi Kivity | pci_memory, ram_memory); |
362 | 41445300 | Anthony PERARD | return b;
|
363 | 41445300 | Anthony PERARD | } |
364 | 41445300 | Anthony PERARD | |
365 | 502a5395 | pbrook | /* PIIX3 PCI to ISA bridge */
|
366 | ab431c28 | Isaku Yamahata | static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq) |
367 | ab431c28 | Isaku Yamahata | { |
368 | ab431c28 | Isaku Yamahata | qemu_set_irq(piix3->pic[pic_irq], |
369 | ab431c28 | Isaku Yamahata | !!(piix3->pic_levels & |
370 | 09de0f46 | TeLeMan | (((1ULL << PIIX_NUM_PIRQS) - 1) << |
371 | ab431c28 | Isaku Yamahata | (pic_irq * PIIX_NUM_PIRQS)))); |
372 | ab431c28 | Isaku Yamahata | } |
373 | 502a5395 | pbrook | |
374 | afe3ef1d | Isaku Yamahata | static void piix3_set_irq_level(PIIX3State *piix3, int pirq, int level) |
375 | ab431c28 | Isaku Yamahata | { |
376 | ab431c28 | Isaku Yamahata | int pic_irq;
|
377 | ab431c28 | Isaku Yamahata | uint64_t mask; |
378 | ab431c28 | Isaku Yamahata | |
379 | ab431c28 | Isaku Yamahata | pic_irq = piix3->dev.config[PIIX_PIRQC + pirq]; |
380 | ab431c28 | Isaku Yamahata | if (pic_irq >= PIIX_NUM_PIC_IRQS) {
|
381 | ab431c28 | Isaku Yamahata | return;
|
382 | ab431c28 | Isaku Yamahata | } |
383 | ab431c28 | Isaku Yamahata | |
384 | ab431c28 | Isaku Yamahata | mask = 1ULL << ((pic_irq * PIIX_NUM_PIRQS) + pirq);
|
385 | ab431c28 | Isaku Yamahata | piix3->pic_levels &= ~mask; |
386 | ab431c28 | Isaku Yamahata | piix3->pic_levels |= mask * !!level; |
387 | ab431c28 | Isaku Yamahata | |
388 | afe3ef1d | Isaku Yamahata | piix3_set_irq_pic(piix3, pic_irq); |
389 | ab431c28 | Isaku Yamahata | } |
390 | ab431c28 | Isaku Yamahata | |
391 | ab431c28 | Isaku Yamahata | static void piix3_set_irq(void *opaque, int pirq, int level) |
392 | 502a5395 | pbrook | { |
393 | 7cd9eee0 | Gerd Hoffmann | PIIX3State *piix3 = opaque; |
394 | afe3ef1d | Isaku Yamahata | piix3_set_irq_level(piix3, pirq, level); |
395 | ab431c28 | Isaku Yamahata | } |
396 | 502a5395 | pbrook | |
397 | ab431c28 | Isaku Yamahata | /* irq routing is changed. so rebuild bitmap */
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398 | ab431c28 | Isaku Yamahata | static void piix3_update_irq_levels(PIIX3State *piix3) |
399 | ab431c28 | Isaku Yamahata | { |
400 | ab431c28 | Isaku Yamahata | int pirq;
|
401 | ab431c28 | Isaku Yamahata | |
402 | ab431c28 | Isaku Yamahata | piix3->pic_levels = 0;
|
403 | ab431c28 | Isaku Yamahata | for (pirq = 0; pirq < PIIX_NUM_PIRQS; pirq++) { |
404 | ab431c28 | Isaku Yamahata | piix3_set_irq_level(piix3, pirq, |
405 | afe3ef1d | Isaku Yamahata | pci_bus_get_irq_level(piix3->dev.bus, pirq)); |
406 | ab431c28 | Isaku Yamahata | } |
407 | ab431c28 | Isaku Yamahata | } |
408 | ab431c28 | Isaku Yamahata | |
409 | ab431c28 | Isaku Yamahata | static void piix3_write_config(PCIDevice *dev, |
410 | ab431c28 | Isaku Yamahata | uint32_t address, uint32_t val, int len)
|
411 | ab431c28 | Isaku Yamahata | { |
412 | ab431c28 | Isaku Yamahata | pci_default_write_config(dev, address, val, len); |
413 | ab431c28 | Isaku Yamahata | if (ranges_overlap(address, len, PIIX_PIRQC, 4)) { |
414 | ab431c28 | Isaku Yamahata | PIIX3State *piix3 = DO_UPCAST(PIIX3State, dev, dev); |
415 | ab431c28 | Isaku Yamahata | int pic_irq;
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416 | ab431c28 | Isaku Yamahata | piix3_update_irq_levels(piix3); |
417 | ab431c28 | Isaku Yamahata | for (pic_irq = 0; pic_irq < PIIX_NUM_PIC_IRQS; pic_irq++) { |
418 | ab431c28 | Isaku Yamahata | piix3_set_irq_pic(piix3, pic_irq); |
419 | d2b59317 | pbrook | } |
420 | 502a5395 | pbrook | } |
421 | 502a5395 | pbrook | } |
422 | 502a5395 | pbrook | |
423 | bf09551a | Stefano Stabellini | static void piix3_write_config_xen(PCIDevice *dev, |
424 | bf09551a | Stefano Stabellini | uint32_t address, uint32_t val, int len)
|
425 | bf09551a | Stefano Stabellini | { |
426 | bf09551a | Stefano Stabellini | xen_piix_pci_write_config_client(address, val, len); |
427 | bf09551a | Stefano Stabellini | piix3_write_config(dev, address, val, len); |
428 | bf09551a | Stefano Stabellini | } |
429 | bf09551a | Stefano Stabellini | |
430 | 15a1956a | Gleb Natapov | static void piix3_reset(void *opaque) |
431 | 502a5395 | pbrook | { |
432 | fd37d881 | Juan Quintela | PIIX3State *d = opaque; |
433 | fd37d881 | Juan Quintela | uint8_t *pci_conf = d->dev.config; |
434 | 502a5395 | pbrook | |
435 | 502a5395 | pbrook | pci_conf[0x04] = 0x07; // master, memory and I/O |
436 | 502a5395 | pbrook | pci_conf[0x05] = 0x00; |
437 | 502a5395 | pbrook | pci_conf[0x06] = 0x00; |
438 | 502a5395 | pbrook | pci_conf[0x07] = 0x02; // PCI_status_devsel_medium |
439 | 502a5395 | pbrook | pci_conf[0x4c] = 0x4d; |
440 | 502a5395 | pbrook | pci_conf[0x4e] = 0x03; |
441 | 502a5395 | pbrook | pci_conf[0x4f] = 0x00; |
442 | 502a5395 | pbrook | pci_conf[0x60] = 0x80; |
443 | 477afee3 | aurel32 | pci_conf[0x61] = 0x80; |
444 | 477afee3 | aurel32 | pci_conf[0x62] = 0x80; |
445 | 477afee3 | aurel32 | pci_conf[0x63] = 0x80; |
446 | 502a5395 | pbrook | pci_conf[0x69] = 0x02; |
447 | 502a5395 | pbrook | pci_conf[0x70] = 0x80; |
448 | 502a5395 | pbrook | pci_conf[0x76] = 0x0c; |
449 | 502a5395 | pbrook | pci_conf[0x77] = 0x0c; |
450 | 502a5395 | pbrook | pci_conf[0x78] = 0x02; |
451 | 502a5395 | pbrook | pci_conf[0x79] = 0x00; |
452 | 502a5395 | pbrook | pci_conf[0x80] = 0x00; |
453 | 502a5395 | pbrook | pci_conf[0x82] = 0x00; |
454 | 502a5395 | pbrook | pci_conf[0xa0] = 0x08; |
455 | 502a5395 | pbrook | pci_conf[0xa2] = 0x00; |
456 | 502a5395 | pbrook | pci_conf[0xa3] = 0x00; |
457 | 502a5395 | pbrook | pci_conf[0xa4] = 0x00; |
458 | 502a5395 | pbrook | pci_conf[0xa5] = 0x00; |
459 | 502a5395 | pbrook | pci_conf[0xa6] = 0x00; |
460 | 502a5395 | pbrook | pci_conf[0xa7] = 0x00; |
461 | 502a5395 | pbrook | pci_conf[0xa8] = 0x0f; |
462 | 502a5395 | pbrook | pci_conf[0xaa] = 0x00; |
463 | 502a5395 | pbrook | pci_conf[0xab] = 0x00; |
464 | 502a5395 | pbrook | pci_conf[0xac] = 0x00; |
465 | 502a5395 | pbrook | pci_conf[0xae] = 0x00; |
466 | ab431c28 | Isaku Yamahata | |
467 | ab431c28 | Isaku Yamahata | d->pic_levels = 0;
|
468 | ab431c28 | Isaku Yamahata | } |
469 | ab431c28 | Isaku Yamahata | |
470 | ab431c28 | Isaku Yamahata | static int piix3_post_load(void *opaque, int version_id) |
471 | ab431c28 | Isaku Yamahata | { |
472 | ab431c28 | Isaku Yamahata | PIIX3State *piix3 = opaque; |
473 | ab431c28 | Isaku Yamahata | piix3_update_irq_levels(piix3); |
474 | ab431c28 | Isaku Yamahata | return 0; |
475 | e735b55a | Isaku Yamahata | } |
476 | 15a1956a | Gleb Natapov | |
477 | e735b55a | Isaku Yamahata | static void piix3_pre_save(void *opaque) |
478 | e735b55a | Isaku Yamahata | { |
479 | e735b55a | Isaku Yamahata | int i;
|
480 | e735b55a | Isaku Yamahata | PIIX3State *piix3 = opaque; |
481 | e735b55a | Isaku Yamahata | |
482 | e735b55a | Isaku Yamahata | for (i = 0; i < ARRAY_SIZE(piix3->pci_irq_levels_vmstate); i++) { |
483 | e735b55a | Isaku Yamahata | piix3->pci_irq_levels_vmstate[i] = |
484 | e735b55a | Isaku Yamahata | pci_bus_get_irq_level(piix3->dev.bus, i); |
485 | e735b55a | Isaku Yamahata | } |
486 | 502a5395 | pbrook | } |
487 | 502a5395 | pbrook | |
488 | d1f171bd | Juan Quintela | static const VMStateDescription vmstate_piix3 = { |
489 | d1f171bd | Juan Quintela | .name = "PIIX3",
|
490 | d1f171bd | Juan Quintela | .version_id = 3,
|
491 | d1f171bd | Juan Quintela | .minimum_version_id = 2,
|
492 | d1f171bd | Juan Quintela | .minimum_version_id_old = 2,
|
493 | ab431c28 | Isaku Yamahata | .post_load = piix3_post_load, |
494 | e735b55a | Isaku Yamahata | .pre_save = piix3_pre_save, |
495 | d1f171bd | Juan Quintela | .fields = (VMStateField []) { |
496 | d1f171bd | Juan Quintela | VMSTATE_PCI_DEVICE(dev, PIIX3State), |
497 | e735b55a | Isaku Yamahata | VMSTATE_INT32_ARRAY_V(pci_irq_levels_vmstate, PIIX3State, |
498 | e735b55a | Isaku Yamahata | PIIX_NUM_PIRQS, 3),
|
499 | d1f171bd | Juan Quintela | VMSTATE_END_OF_LIST() |
500 | da64182c | Juan Quintela | } |
501 | d1f171bd | Juan Quintela | }; |
502 | 1941d19c | bellard | |
503 | fd37d881 | Juan Quintela | static int piix3_initfn(PCIDevice *dev) |
504 | 502a5395 | pbrook | { |
505 | fd37d881 | Juan Quintela | PIIX3State *d = DO_UPCAST(PIIX3State, dev, dev); |
506 | 502a5395 | pbrook | |
507 | c2d0d012 | Richard Henderson | isa_bus_new(&d->dev.qdev, pci_address_space_io(dev)); |
508 | a08d4367 | Jan Kiszka | qemu_register_reset(piix3_reset, d); |
509 | 81a322d4 | Gerd Hoffmann | return 0; |
510 | 502a5395 | pbrook | } |
511 | 5c2b87e3 | ths | |
512 | 8a14daa5 | Gerd Hoffmann | static PCIDeviceInfo i440fx_info[] = {
|
513 | 8a14daa5 | Gerd Hoffmann | { |
514 | 8a14daa5 | Gerd Hoffmann | .qdev.name = "i440FX",
|
515 | 8a14daa5 | Gerd Hoffmann | .qdev.desc = "Host bridge",
|
516 | 0a3bacf3 | Juan Quintela | .qdev.size = sizeof(PCII440FXState),
|
517 | be73cfe2 | Juan Quintela | .qdev.vmsd = &vmstate_i440fx, |
518 | 8a14daa5 | Gerd Hoffmann | .qdev.no_user = 1,
|
519 | 0965f12d | Gerd Hoffmann | .no_hotplug = 1,
|
520 | 8a14daa5 | Gerd Hoffmann | .init = i440fx_initfn, |
521 | 8a14daa5 | Gerd Hoffmann | .config_write = i440fx_write_config, |
522 | 3a9d8549 | Isaku Yamahata | .vendor_id = PCI_VENDOR_ID_INTEL, |
523 | 3a9d8549 | Isaku Yamahata | .device_id = PCI_DEVICE_ID_INTEL_82441, |
524 | 3a9d8549 | Isaku Yamahata | .revision = 0x02,
|
525 | 3a9d8549 | Isaku Yamahata | .class_id = PCI_CLASS_BRIDGE_HOST, |
526 | 8a14daa5 | Gerd Hoffmann | },{ |
527 | 8a14daa5 | Gerd Hoffmann | .qdev.name = "PIIX3",
|
528 | 8a14daa5 | Gerd Hoffmann | .qdev.desc = "ISA bridge",
|
529 | fd37d881 | Juan Quintela | .qdev.size = sizeof(PIIX3State),
|
530 | be73cfe2 | Juan Quintela | .qdev.vmsd = &vmstate_piix3, |
531 | 8a14daa5 | Gerd Hoffmann | .qdev.no_user = 1,
|
532 | 0965f12d | Gerd Hoffmann | .no_hotplug = 1,
|
533 | 8a14daa5 | Gerd Hoffmann | .init = piix3_initfn, |
534 | ab431c28 | Isaku Yamahata | .config_write = piix3_write_config, |
535 | 3a9d8549 | Isaku Yamahata | .vendor_id = PCI_VENDOR_ID_INTEL, |
536 | 3a9d8549 | Isaku Yamahata | .device_id = PCI_DEVICE_ID_INTEL_82371SB_0, // 82371SB PIIX3 PCI-to-ISA bridge (Step A1)
|
537 | 3a9d8549 | Isaku Yamahata | .class_id = PCI_CLASS_BRIDGE_ISA, |
538 | 8a14daa5 | Gerd Hoffmann | },{ |
539 | bf09551a | Stefano Stabellini | .qdev.name = "PIIX3-xen",
|
540 | bf09551a | Stefano Stabellini | .qdev.desc = "ISA bridge",
|
541 | bf09551a | Stefano Stabellini | .qdev.size = sizeof(PIIX3State),
|
542 | bf09551a | Stefano Stabellini | .qdev.vmsd = &vmstate_piix3, |
543 | bf09551a | Stefano Stabellini | .qdev.no_user = 1,
|
544 | bf09551a | Stefano Stabellini | .no_hotplug = 1,
|
545 | bf09551a | Stefano Stabellini | .init = piix3_initfn, |
546 | bf09551a | Stefano Stabellini | .config_write = piix3_write_config_xen, |
547 | ce4fd422 | Anthony PERARD | .vendor_id = PCI_VENDOR_ID_INTEL, |
548 | ce4fd422 | Anthony PERARD | .device_id = PCI_DEVICE_ID_INTEL_82371SB_0, // 82371SB PIIX3 PCI-to-ISA bridge (Step A1)
|
549 | ce4fd422 | Anthony PERARD | .class_id = PCI_CLASS_BRIDGE_ISA, |
550 | bf09551a | Stefano Stabellini | },{ |
551 | 8a14daa5 | Gerd Hoffmann | /* end of list */
|
552 | 8a14daa5 | Gerd Hoffmann | } |
553 | 8a14daa5 | Gerd Hoffmann | }; |
554 | 8a14daa5 | Gerd Hoffmann | |
555 | 8a14daa5 | Gerd Hoffmann | static SysBusDeviceInfo i440fx_pcihost_info = {
|
556 | 8a14daa5 | Gerd Hoffmann | .init = i440fx_pcihost_initfn, |
557 | 8a14daa5 | Gerd Hoffmann | .qdev.name = "i440FX-pcihost",
|
558 | 779206de | Gleb Natapov | .qdev.fw_name = "pci",
|
559 | 8a14daa5 | Gerd Hoffmann | .qdev.size = sizeof(I440FXState),
|
560 | 8a14daa5 | Gerd Hoffmann | .qdev.no_user = 1,
|
561 | 8a14daa5 | Gerd Hoffmann | }; |
562 | 8a14daa5 | Gerd Hoffmann | |
563 | 8a14daa5 | Gerd Hoffmann | static void i440fx_register(void) |
564 | 8a14daa5 | Gerd Hoffmann | { |
565 | 8a14daa5 | Gerd Hoffmann | sysbus_register_withprop(&i440fx_pcihost_info); |
566 | 8a14daa5 | Gerd Hoffmann | pci_qdev_register_many(i440fx_info); |
567 | 8a14daa5 | Gerd Hoffmann | } |
568 | 8a14daa5 | Gerd Hoffmann | device_init(i440fx_register); |