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dm: correct PCI configures of igd-lpc 

previous patch fails to align SUBVID, SUBDID of igd-lpc with physical one.
this patch corrects the errors and refine the code.

Tracked-On: #4405

Signed-off-by: Junming Liu <junming.liu@intel.com>
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
This commit is contained in:
Junming Liu 2020-03-26 10:41:00 -04:00 committed by wenlingz
parent ac6be7b591
commit 86aa338a5f
1 changed files with 5 additions and 5 deletions
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10
devicemodel/hw/pci/lpc.c
View File

@ -495,11 +495,11 @@ pci_igd_lpc_init(struct vmctx *ctx, struct pci_vdev *pi, char *opts)
* The VID, DID, REVID, SUBVID, SUBDID of igd-lpc need aligned with physical one. * The VID, DID, REVID, SUBVID, SUBDID of igd-lpc need aligned with physical one.
* Without these physical values, gvt-d GOP driver couldn't work. * Without these physical values, gvt-d GOP driver couldn't work.
*/ */
pci_set_cfgdata16(pi, PCIR_DEVICE, (host_config[0x03] << 8) | host_config[0x02]); pci_set_cfgdata16(pi, PCIR_DEVICE, *(uint16_t *)(host_config + PCIR_DEVICE));
pci_set_cfgdata16(pi, PCIR_VENDOR, (host_config[0x01] << 8) | host_config[0x00]); pci_set_cfgdata16(pi, PCIR_VENDOR, *(uint16_t *)(host_config + PCIR_VENDOR));
pci_set_cfgdata8(pi, PCIR_REVID, host_config[0x08]); pci_set_cfgdata8(pi, PCIR_REVID, host_config[PCIR_REVID]);
pci_set_cfgdata16(pi, PCIR_SUBVEND_0, (host_config[0x01] << 8) | host_config[0x00]); pci_set_cfgdata16(pi, PCIR_SUBVEND_0, *(uint16_t *)(host_config + PCIR_SUBVEND_0));
pci_set_cfgdata16(pi, PCIR_SUBDEV_0, (host_config[0x03] << 8) | host_config[0x02]); pci_set_cfgdata16(pi, PCIR_SUBDEV_0, *(uint16_t *)(host_config + PCIR_SUBDEV_0));
return 0; return 0;
} }