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/block-backend.h"
31 #include "sysemu/blockdev.h"
32 #include "sysemu/sysemu.h"
33 #include "sysemu/dma.h"
35 #include <hw/ide/pci.h>
37 static uint64_t bmdma_read(void *opaque, hwaddr addr, unsigned size)
39 BMDMAState *bm = opaque;
43 return ((uint64_t)1 << (size * 8)) - 1;
58 printf("bmdma: readb 0x%02x : 0x%02x\n", (uint8_t)addr, val);
63 static void bmdma_write(void *opaque, hwaddr addr,
64 uint64_t val, unsigned size)
66 BMDMAState *bm = opaque;
73 printf("bmdma: writeb 0x%02x : 0x%02x\n", (uint8_t)addr, (uint8_t)val);
77 bmdma_cmd_writeb(bm, val);
80 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
85 static const MemoryRegionOps piix_bmdma_ops = {
90 static void bmdma_setup_bar(PCIIDEState *d)
94 memory_region_init(&d->bmdma_bar, OBJECT(d), "piix-bmdma-container", 16);
95 for(i = 0;i < 2; i++) {
96 BMDMAState *bm = &d->bmdma[i];
98 memory_region_init_io(&bm->extra_io, OBJECT(d), &piix_bmdma_ops, bm,
100 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
101 memory_region_init_io(&bm->addr_ioport, OBJECT(d),
102 &bmdma_addr_ioport_ops, bm, "bmdma", 4);
103 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
107 static void piix3_reset(void *opaque)
109 PCIIDEState *d = opaque;
110 PCIDevice *pd = PCI_DEVICE(d);
111 uint8_t *pci_conf = pd->config;
114 for (i = 0; i < 2; i++) {
115 ide_bus_reset(&d->bus[i]);
118 /* TODO: this is the default. do not override. */
119 pci_conf[PCI_COMMAND] = 0x00;
120 /* TODO: this is the default. do not override. */
121 pci_conf[PCI_COMMAND + 1] = 0x00;
122 /* TODO: use pci_set_word */
123 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
124 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
125 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
128 static void pci_piix_init_ports(PCIIDEState *d) {
129 static const struct {
139 for (i = 0; i < 2; i++) {
140 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2);
141 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
142 port_info[i].iobase2);
143 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
145 bmdma_init(&d->bus[i], &d->bmdma[i], d);
146 d->bmdma[i].bus = &d->bus[i];
147 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
152 static int pci_piix_ide_initfn(PCIDevice *dev)
154 PCIIDEState *d = PCI_IDE(dev);
155 uint8_t *pci_conf = dev->config;
157 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
159 qemu_register_reset(piix3_reset, d);
162 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
164 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
166 pci_piix_init_ports(d);
171 int pci_piix3_xen_ide_unplug(DeviceState *dev)
173 PCIIDEState *pci_ide;
177 pci_ide = PCI_IDE(dev);
180 di = drive_get_by_index(IF_IDE, i);
181 if (di != NULL && !di->media_cd) {
182 BlockBackend *blk = blk_by_legacy_dinfo(di);
183 DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
185 bdrv_detach_dev(di->bdrv, ds);
187 pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
191 qdev_reset_all(DEVICE(dev));
195 PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
199 dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
200 pci_ide_create_devs(dev, hd_table);
204 static void pci_piix_ide_exitfn(PCIDevice *dev)
206 PCIIDEState *d = PCI_IDE(dev);
209 for (i = 0; i < 2; ++i) {
210 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
211 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
215 /* hd_table must contain 4 block drivers */
216 /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
217 PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
221 dev = pci_create_simple(bus, devfn, "piix3-ide");
222 pci_ide_create_devs(dev, hd_table);
226 /* hd_table must contain 4 block drivers */
227 /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
228 PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
232 dev = pci_create_simple(bus, devfn, "piix4-ide");
233 pci_ide_create_devs(dev, hd_table);
237 static void piix3_ide_class_init(ObjectClass *klass, void *data)
239 DeviceClass *dc = DEVICE_CLASS(klass);
240 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
242 k->init = pci_piix_ide_initfn;
243 k->exit = pci_piix_ide_exitfn;
244 k->vendor_id = PCI_VENDOR_ID_INTEL;
245 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
246 k->class_id = PCI_CLASS_STORAGE_IDE;
247 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
248 dc->hotpluggable = false;
251 static const TypeInfo piix3_ide_info = {
253 .parent = TYPE_PCI_IDE,
254 .class_init = piix3_ide_class_init,
257 static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
259 DeviceClass *dc = DEVICE_CLASS(klass);
260 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
262 k->init = pci_piix_ide_initfn;
263 k->vendor_id = PCI_VENDOR_ID_INTEL;
264 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
265 k->class_id = PCI_CLASS_STORAGE_IDE;
266 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
269 static const TypeInfo piix3_ide_xen_info = {
270 .name = "piix3-ide-xen",
271 .parent = TYPE_PCI_IDE,
272 .class_init = piix3_ide_xen_class_init,
275 static void piix4_ide_class_init(ObjectClass *klass, void *data)
277 DeviceClass *dc = DEVICE_CLASS(klass);
278 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
280 k->init = pci_piix_ide_initfn;
281 k->exit = pci_piix_ide_exitfn;
282 k->vendor_id = PCI_VENDOR_ID_INTEL;
283 k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
284 k->class_id = PCI_CLASS_STORAGE_IDE;
285 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
286 dc->hotpluggable = false;
289 static const TypeInfo piix4_ide_info = {
291 .parent = TYPE_PCI_IDE,
292 .class_init = piix4_ide_class_init,
295 static void piix_ide_register_types(void)
297 type_register_static(&piix3_ide_info);
298 type_register_static(&piix3_ide_xen_info);
299 type_register_static(&piix4_ide_info);
302 type_init(piix_ide_register_types)