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
27 #include <hw/i386/pc.h>
28 #include <hw/pci/pci.h>
29 #include <hw/isa/isa.h>
30 #include "sysemu/blockdev.h"
31 #include "sysemu/sysemu.h"
32 #include "sysemu/dma.h"
34 #include <hw/ide/pci.h>
36 static uint64_t bmdma_read(void *opaque, hwaddr 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, hwaddr 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 bmdma_cmd_writeb(bm, val);
79 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
84 static const MemoryRegionOps piix_bmdma_ops = {
89 static void bmdma_setup_bar(PCIIDEState *d)
93 memory_region_init(&d->bmdma_bar, OBJECT(d), "piix-bmdma-container", 16);
94 for(i = 0;i < 2; i++) {
95 BMDMAState *bm = &d->bmdma[i];
97 memory_region_init_io(&bm->extra_io, OBJECT(d), &piix_bmdma_ops, bm,
99 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
100 memory_region_init_io(&bm->addr_ioport, OBJECT(d),
101 &bmdma_addr_ioport_ops, bm, "bmdma", 4);
102 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
106 static void piix3_reset(void *opaque)
108 PCIIDEState *d = opaque;
109 PCIDevice *pd = PCI_DEVICE(d);
110 uint8_t *pci_conf = pd->config;
113 for (i = 0; i < 2; i++) {
114 ide_bus_reset(&d->bus[i]);
117 /* TODO: this is the default. do not override. */
118 pci_conf[PCI_COMMAND] = 0x00;
119 /* TODO: this is the default. do not override. */
120 pci_conf[PCI_COMMAND + 1] = 0x00;
121 /* TODO: use pci_set_word */
122 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
123 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
124 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
127 static void pci_piix_init_ports(PCIIDEState *d) {
128 static const struct {
138 for (i = 0; i < 2; i++) {
139 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2);
140 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
141 port_info[i].iobase2);
142 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
144 bmdma_init(&d->bus[i], &d->bmdma[i], d);
145 d->bmdma[i].bus = &d->bus[i];
146 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
151 static int pci_piix_ide_initfn(PCIDevice *dev)
153 PCIIDEState *d = PCI_IDE(dev);
154 uint8_t *pci_conf = dev->config;
156 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
158 qemu_register_reset(piix3_reset, d);
161 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
163 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
165 pci_piix_init_ports(d);
170 int pci_piix3_xen_ide_unplug(DeviceState *dev)
172 PCIIDEState *pci_ide;
176 pci_ide = PCI_IDE(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(DEVICE(dev));
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 void pci_piix_ide_exitfn(PCIDevice *dev)
205 PCIIDEState *d = PCI_IDE(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);
217 /* hd_table must contain 4 block drivers */
218 /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
219 PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
223 dev = pci_create_simple(bus, devfn, "piix3-ide");
224 pci_ide_create_devs(dev, hd_table);
228 /* hd_table must contain 4 block drivers */
229 /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
230 PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
234 dev = pci_create_simple(bus, devfn, "piix4-ide");
235 pci_ide_create_devs(dev, hd_table);
239 static void piix3_ide_class_init(ObjectClass *klass, void *data)
241 DeviceClass *dc = DEVICE_CLASS(klass);
242 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
244 k->init = pci_piix_ide_initfn;
245 k->exit = pci_piix_ide_exitfn;
246 k->vendor_id = PCI_VENDOR_ID_INTEL;
247 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
248 k->class_id = PCI_CLASS_STORAGE_IDE;
249 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
250 dc->hotpluggable = false;
253 static const TypeInfo piix3_ide_info = {
255 .parent = TYPE_PCI_IDE,
256 .class_init = piix3_ide_class_init,
259 static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
261 DeviceClass *dc = DEVICE_CLASS(klass);
262 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
264 k->init = pci_piix_ide_initfn;
265 k->vendor_id = PCI_VENDOR_ID_INTEL;
266 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
267 k->class_id = PCI_CLASS_STORAGE_IDE;
268 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
271 static const TypeInfo piix3_ide_xen_info = {
272 .name = "piix3-ide-xen",
273 .parent = TYPE_PCI_IDE,
274 .class_init = piix3_ide_xen_class_init,
277 static void piix4_ide_class_init(ObjectClass *klass, void *data)
279 DeviceClass *dc = DEVICE_CLASS(klass);
280 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
282 k->init = pci_piix_ide_initfn;
283 k->exit = pci_piix_ide_exitfn;
284 k->vendor_id = PCI_VENDOR_ID_INTEL;
285 k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
286 k->class_id = PCI_CLASS_STORAGE_IDE;
287 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
288 dc->hotpluggable = false;
291 static const TypeInfo piix4_ide_info = {
293 .parent = TYPE_PCI_IDE,
294 .class_init = piix4_ide_class_init,
297 static void piix_ide_register_types(void)
299 type_register_static(&piix3_ide_info);
300 type_register_static(&piix3_ide_xen_info);
301 type_register_static(&piix4_ide_info);
304 type_init(piix_ide_register_types)