f9e8fda479
pci_piix3_xen_ide_unplug() unplugs only disks, not CD-ROMs. It peeks into the DriveInfo's BlockDriverState to distinguish between the two. Unclean; use DriveInfo member media_cd, like xen_config_dev_blk(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
279 lines
7.9 KiB
C
279 lines
7.9 KiB
C
/*
|
|
* QEMU IDE Emulation: PCI PIIX3/4 support.
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
* Copyright (c) 2006 Openedhand Ltd.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
#include <hw/hw.h>
|
|
#include <hw/pc.h>
|
|
#include <hw/pci.h>
|
|
#include <hw/isa.h>
|
|
#include "block.h"
|
|
#include "sysemu.h"
|
|
#include "dma.h"
|
|
|
|
#include <hw/ide/pci.h>
|
|
|
|
static uint64_t bmdma_read(void *opaque, target_phys_addr_t addr, unsigned size)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
uint32_t val;
|
|
|
|
if (size != 1) {
|
|
return ((uint64_t)1 << (size * 8)) - 1;
|
|
}
|
|
|
|
switch(addr & 3) {
|
|
case 0:
|
|
val = bm->cmd;
|
|
break;
|
|
case 2:
|
|
val = bm->status;
|
|
break;
|
|
default:
|
|
val = 0xff;
|
|
break;
|
|
}
|
|
#ifdef DEBUG_IDE
|
|
printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
|
|
#endif
|
|
return val;
|
|
}
|
|
|
|
static void bmdma_write(void *opaque, target_phys_addr_t addr,
|
|
uint64_t val, unsigned size)
|
|
{
|
|
BMDMAState *bm = opaque;
|
|
|
|
if (size != 1) {
|
|
return;
|
|
}
|
|
|
|
#ifdef DEBUG_IDE
|
|
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
|
|
#endif
|
|
switch(addr & 3) {
|
|
case 0:
|
|
return bmdma_cmd_writeb(bm, val);
|
|
case 2:
|
|
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static MemoryRegionOps piix_bmdma_ops = {
|
|
.read = bmdma_read,
|
|
.write = bmdma_write,
|
|
};
|
|
|
|
static void bmdma_setup_bar(PCIIDEState *d)
|
|
{
|
|
int i;
|
|
|
|
memory_region_init(&d->bmdma_bar, "piix-bmdma-container", 16);
|
|
for(i = 0;i < 2; i++) {
|
|
BMDMAState *bm = &d->bmdma[i];
|
|
|
|
memory_region_init_io(&bm->extra_io, &piix_bmdma_ops, bm,
|
|
"piix-bmdma", 4);
|
|
memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
|
|
memory_region_init_io(&bm->addr_ioport, &bmdma_addr_ioport_ops, bm,
|
|
"bmdma", 4);
|
|
memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
|
|
}
|
|
}
|
|
|
|
static void piix3_reset(void *opaque)
|
|
{
|
|
PCIIDEState *d = opaque;
|
|
uint8_t *pci_conf = d->dev.config;
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
ide_bus_reset(&d->bus[i]);
|
|
}
|
|
|
|
/* TODO: this is the default. do not override. */
|
|
pci_conf[PCI_COMMAND] = 0x00;
|
|
/* TODO: this is the default. do not override. */
|
|
pci_conf[PCI_COMMAND + 1] = 0x00;
|
|
/* TODO: use pci_set_word */
|
|
pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
|
|
pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
|
|
pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
|
|
}
|
|
|
|
static void pci_piix_init_ports(PCIIDEState *d) {
|
|
int i;
|
|
struct {
|
|
int iobase;
|
|
int iobase2;
|
|
int isairq;
|
|
} port_info[] = {
|
|
{0x1f0, 0x3f6, 14},
|
|
{0x170, 0x376, 15},
|
|
};
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
ide_bus_new(&d->bus[i], &d->dev.qdev, i);
|
|
ide_init_ioport(&d->bus[i], port_info[i].iobase, port_info[i].iobase2);
|
|
ide_init2(&d->bus[i], isa_get_irq(port_info[i].isairq));
|
|
|
|
bmdma_init(&d->bus[i], &d->bmdma[i], d);
|
|
d->bmdma[i].bus = &d->bus[i];
|
|
qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
|
|
&d->bmdma[i].dma);
|
|
}
|
|
}
|
|
|
|
static int pci_piix_ide_initfn(PCIDevice *dev)
|
|
{
|
|
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
|
|
uint8_t *pci_conf = d->dev.config;
|
|
|
|
pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
|
|
|
|
qemu_register_reset(piix3_reset, d);
|
|
|
|
bmdma_setup_bar(d);
|
|
pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
|
|
|
|
vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
|
|
|
|
pci_piix_init_ports(d);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pci_piix3_xen_ide_unplug(DeviceState *dev)
|
|
{
|
|
PCIDevice *pci_dev;
|
|
PCIIDEState *pci_ide;
|
|
DriveInfo *di;
|
|
int i = 0;
|
|
|
|
pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
|
|
pci_ide = DO_UPCAST(PCIIDEState, dev, pci_dev);
|
|
|
|
for (; i < 3; i++) {
|
|
di = drive_get_by_index(IF_IDE, i);
|
|
if (di != NULL && !di->media_cd) {
|
|
DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
|
|
if (ds) {
|
|
bdrv_detach_dev(di->bdrv, ds);
|
|
}
|
|
bdrv_close(di->bdrv);
|
|
pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
|
|
drive_put_ref(di);
|
|
}
|
|
}
|
|
qdev_reset_all(&(pci_ide->dev.qdev));
|
|
return 0;
|
|
}
|
|
|
|
PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
|
|
{
|
|
PCIDevice *dev;
|
|
|
|
dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
|
|
dev->qdev.info->unplug = pci_piix3_xen_ide_unplug;
|
|
pci_ide_create_devs(dev, hd_table);
|
|
return dev;
|
|
}
|
|
|
|
static int pci_piix_ide_exitfn(PCIDevice *dev)
|
|
{
|
|
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
|
|
unsigned i;
|
|
|
|
for (i = 0; i < 2; ++i) {
|
|
memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
|
|
memory_region_destroy(&d->bmdma[i].extra_io);
|
|
memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
|
|
memory_region_destroy(&d->bmdma[i].addr_ioport);
|
|
}
|
|
memory_region_destroy(&d->bmdma_bar);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* hd_table must contain 4 block drivers */
|
|
/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
|
|
PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
|
|
{
|
|
PCIDevice *dev;
|
|
|
|
dev = pci_create_simple(bus, devfn, "piix3-ide");
|
|
pci_ide_create_devs(dev, hd_table);
|
|
return dev;
|
|
}
|
|
|
|
/* hd_table must contain 4 block drivers */
|
|
/* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
|
|
PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
|
|
{
|
|
PCIDevice *dev;
|
|
|
|
dev = pci_create_simple(bus, devfn, "piix4-ide");
|
|
pci_ide_create_devs(dev, hd_table);
|
|
return dev;
|
|
}
|
|
|
|
static PCIDeviceInfo piix_ide_info[] = {
|
|
{
|
|
.qdev.name = "piix3-ide",
|
|
.qdev.size = sizeof(PCIIDEState),
|
|
.qdev.no_user = 1,
|
|
.no_hotplug = 1,
|
|
.init = pci_piix_ide_initfn,
|
|
.exit = pci_piix_ide_exitfn,
|
|
.vendor_id = PCI_VENDOR_ID_INTEL,
|
|
.device_id = PCI_DEVICE_ID_INTEL_82371SB_1,
|
|
.class_id = PCI_CLASS_STORAGE_IDE,
|
|
},{
|
|
.qdev.name = "piix3-ide-xen",
|
|
.qdev.size = sizeof(PCIIDEState),
|
|
.qdev.no_user = 1,
|
|
.init = pci_piix_ide_initfn,
|
|
.vendor_id = PCI_VENDOR_ID_INTEL,
|
|
.device_id = PCI_DEVICE_ID_INTEL_82371SB_1,
|
|
.class_id = PCI_CLASS_STORAGE_IDE,
|
|
},{
|
|
.qdev.name = "piix4-ide",
|
|
.qdev.size = sizeof(PCIIDEState),
|
|
.qdev.no_user = 1,
|
|
.no_hotplug = 1,
|
|
.init = pci_piix_ide_initfn,
|
|
.exit = pci_piix_ide_exitfn,
|
|
.vendor_id = PCI_VENDOR_ID_INTEL,
|
|
.device_id = PCI_DEVICE_ID_INTEL_82371AB,
|
|
.class_id = PCI_CLASS_STORAGE_IDE,
|
|
},{
|
|
/* end of list */
|
|
}
|
|
};
|
|
|
|
static void piix_ide_register(void)
|
|
{
|
|
pci_qdev_register_many(piix_ide_info);
|
|
}
|
|
device_init(piix_ide_register);
|