2 * QEMU IDE Emulation: PCI PIIX3/4 support.
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
34 #include <hw/ide/pci.h>
36 static uint64_t bmdma_read(void *opaque, target_phys_addr_t addr, unsigned size)
38 BMDMAState *bm = opaque;
42 return ((uint64_t)1 << (size * 8)) - 1;
57 printf("bmdma: readb 0x%02x : 0x%02x\n", (uint8_t)addr, val);
62 static void bmdma_write(void *opaque, target_phys_addr_t addr,
63 uint64_t val, unsigned size)
65 BMDMAState *bm = opaque;
72 printf("bmdma: writeb 0x%02x : 0x%02x\n", (uint8_t)addr, (uint8_t)val);
76 return bmdma_cmd_writeb(bm, val);
78 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
83 static const MemoryRegionOps piix_bmdma_ops = {
88 static void bmdma_setup_bar(PCIIDEState *d)
92 memory_region_init(&d->bmdma_bar, "piix-bmdma-container", 16);
93 for(i = 0;i < 2; i++) {
94 BMDMAState *bm = &d->bmdma[i];
96 memory_region_init_io(&bm->extra_io, &piix_bmdma_ops, bm,
98 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
99 memory_region_init_io(&bm->addr_ioport, &bmdma_addr_ioport_ops, bm,
101 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
105 static void piix3_reset(void *opaque)
107 PCIIDEState *d = opaque;
108 uint8_t *pci_conf = d->dev.config;
111 for (i = 0; i < 2; i++) {
112 ide_bus_reset(&d->bus[i]);
115 /* TODO: this is the default. do not override. */
116 pci_conf[PCI_COMMAND] = 0x00;
117 /* TODO: this is the default. do not override. */
118 pci_conf[PCI_COMMAND + 1] = 0x00;
119 /* TODO: use pci_set_word */
120 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
121 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
122 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
125 static void pci_piix_init_ports(PCIIDEState *d) {
126 static const struct {
136 for (i = 0; i < 2; i++) {
137 ide_bus_new(&d->bus[i], &d->dev.qdev, i);
138 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
139 port_info[i].iobase2);
140 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
142 bmdma_init(&d->bus[i], &d->bmdma[i], d);
143 d->bmdma[i].bus = &d->bus[i];
144 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
149 static int pci_piix_ide_initfn(PCIDevice *dev)
151 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
152 uint8_t *pci_conf = d->dev.config;
154 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
156 qemu_register_reset(piix3_reset, d);
159 pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
161 vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
163 pci_piix_init_ports(d);
168 static int pci_piix3_xen_ide_unplug(DeviceState *dev)
171 PCIIDEState *pci_ide;
175 pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
176 pci_ide = DO_UPCAST(PCIIDEState, dev, pci_dev);
179 di = drive_get_by_index(IF_IDE, i);
180 if (di != NULL && !di->media_cd) {
181 DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
183 bdrv_detach_dev(di->bdrv, ds);
185 bdrv_close(di->bdrv);
186 pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
190 qdev_reset_all(&(pci_ide->dev.qdev));
194 PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
198 dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
199 pci_ide_create_devs(dev, hd_table);
203 static int pci_piix_ide_exitfn(PCIDevice *dev)
205 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
208 for (i = 0; i < 2; ++i) {
209 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
210 memory_region_destroy(&d->bmdma[i].extra_io);
211 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
212 memory_region_destroy(&d->bmdma[i].addr_ioport);
214 memory_region_destroy(&d->bmdma_bar);
219 /* hd_table must contain 4 block drivers */
220 /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
221 PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
225 dev = pci_create_simple(bus, devfn, "piix3-ide");
226 pci_ide_create_devs(dev, hd_table);
230 /* hd_table must contain 4 block drivers */
231 /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
232 PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
236 dev = pci_create_simple(bus, devfn, "piix4-ide");
237 pci_ide_create_devs(dev, hd_table);
241 static void piix3_ide_class_init(ObjectClass *klass, void *data)
243 DeviceClass *dc = DEVICE_CLASS(klass);
244 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
247 k->init = pci_piix_ide_initfn;
248 k->exit = pci_piix_ide_exitfn;
249 k->vendor_id = PCI_VENDOR_ID_INTEL;
250 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
251 k->class_id = PCI_CLASS_STORAGE_IDE;
255 static TypeInfo piix3_ide_info = {
257 .parent = TYPE_PCI_DEVICE,
258 .instance_size = sizeof(PCIIDEState),
259 .class_init = piix3_ide_class_init,
262 static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
264 DeviceClass *dc = DEVICE_CLASS(klass);
265 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
267 k->init = pci_piix_ide_initfn;
268 k->vendor_id = PCI_VENDOR_ID_INTEL;
269 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
270 k->class_id = PCI_CLASS_STORAGE_IDE;
272 dc->unplug = pci_piix3_xen_ide_unplug;
275 static TypeInfo piix3_ide_xen_info = {
276 .name = "piix3-ide-xen",
277 .parent = TYPE_PCI_DEVICE,
278 .instance_size = sizeof(PCIIDEState),
279 .class_init = piix3_ide_xen_class_init,
282 static void piix4_ide_class_init(ObjectClass *klass, void *data)
284 DeviceClass *dc = DEVICE_CLASS(klass);
285 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
288 k->init = pci_piix_ide_initfn;
289 k->exit = pci_piix_ide_exitfn;
290 k->vendor_id = PCI_VENDOR_ID_INTEL;
291 k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
292 k->class_id = PCI_CLASS_STORAGE_IDE;
296 static TypeInfo piix4_ide_info = {
298 .parent = TYPE_PCI_DEVICE,
299 .instance_size = sizeof(PCIIDEState),
300 .class_init = piix4_ide_class_init,
303 static void piix_ide_register_types(void)
305 type_register_static(&piix3_ide_info);
306 type_register_static(&piix3_ide_xen_info);
307 type_register_static(&piix4_ide_info);
310 type_init(piix_ide_register_types)