aboutsummaryrefslogtreecommitdiff
path: root/hw/pci-host/i440fx.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/pci-host/i440fx.c')
-rw-r--r--hw/pci-host/i440fx.c105
1 files changed, 1 insertions, 104 deletions
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index f27131102d..bae7b42327 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -1,5 +1,5 @@
/*
- * QEMU i440FX/PIIX3 PCI Bridge Emulation
+ * QEMU i440FX PCI Bridge Emulation
*
* Copyright (c) 2006 Fabrice Bellard
*
@@ -31,7 +31,6 @@
#include "hw/sysbus.h"
#include "qapi/error.h"
#include "migration/vmstate.h"
-#include "hw/pci-host/pam.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
@@ -51,23 +50,6 @@ typedef struct I440FXState {
uint32_t short_root_bus;
} I440FXState;
-#define I440FX_PCI_DEVICE(obj) \
- OBJECT_CHECK(PCII440FXState, (obj), TYPE_I440FX_PCI_DEVICE)
-
-struct PCII440FXState {
- /*< private >*/
- PCIDevice parent_obj;
- /*< public >*/
-
- MemoryRegion *system_memory;
- MemoryRegion *pci_address_space;
- MemoryRegion *ram_memory;
- PAMMemoryRegion pam_regions[13];
- MemoryRegion smram_region;
- MemoryRegion smram, low_smram;
-};
-
-
#define I440FX_PAM 0x59
#define I440FX_PAM_SIZE 7
#define I440FX_SMRAM 0x72
@@ -386,90 +368,6 @@ static const TypeInfo i440fx_info = {
},
};
-/* IGD Passthrough Host Bridge. */
-typedef struct {
- uint8_t offset;
- uint8_t len;
-} IGDHostInfo;
-
-/* Here we just expose minimal host bridge offset subset. */
-static const IGDHostInfo igd_host_bridge_infos[] = {
- {0x08, 2}, /* revision id */
- {0x2c, 2}, /* sybsystem vendor id */
- {0x2e, 2}, /* sybsystem id */
- {0x50, 2}, /* SNB: processor graphics control register */
- {0x52, 2}, /* processor graphics control register */
- {0xa4, 4}, /* SNB: graphics base of stolen memory */
- {0xa8, 4}, /* SNB: base of GTT stolen memory */
-};
-
-static void host_pci_config_read(int pos, int len, uint32_t *val, Error **errp)
-{
- int rc, config_fd;
- /* Access real host bridge. */
- char *path = g_strdup_printf("/sys/bus/pci/devices/%04x:%02x:%02x.%d/%s",
- 0, 0, 0, 0, "config");
-
- config_fd = open(path, O_RDWR);
- if (config_fd < 0) {
- error_setg_errno(errp, errno, "Failed to open: %s", path);
- goto out;
- }
-
- if (lseek(config_fd, pos, SEEK_SET) != pos) {
- error_setg_errno(errp, errno, "Failed to seek: %s", path);
- goto out_close_fd;
- }
-
- do {
- rc = read(config_fd, (uint8_t *)val, len);
- } while (rc < 0 && (errno == EINTR || errno == EAGAIN));
- if (rc != len) {
- error_setg_errno(errp, errno, "Failed to read: %s", path);
- }
-
-out_close_fd:
- close(config_fd);
-out:
- g_free(path);
-}
-
-static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
-{
- uint32_t val = 0;
- int i, num;
- int pos, len;
- Error *local_err = NULL;
-
- num = ARRAY_SIZE(igd_host_bridge_infos);
- for (i = 0; i < num; i++) {
- pos = igd_host_bridge_infos[i].offset;
- len = igd_host_bridge_infos[i].len;
- host_pci_config_read(pos, len, &val, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- pci_default_write_config(pci_dev, pos, val, len);
- }
-}
-
-static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
- k->realize = igd_pt_i440fx_realize;
- dc->desc = "IGD Passthrough Host bridge";
-}
-
-static const TypeInfo igd_passthrough_i440fx_info = {
- .name = TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE,
- .parent = TYPE_I440FX_PCI_DEVICE,
- .instance_size = sizeof(PCII440FXState),
- .class_init = igd_passthrough_i440fx_class_init,
-};
-
static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
@@ -514,7 +412,6 @@ static const TypeInfo i440fx_pcihost_info = {
static void i440fx_register_types(void)
{
type_register_static(&i440fx_info);
- type_register_static(&igd_passthrough_i440fx_info);
type_register_static(&i440fx_pcihost_info);
}