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acrn-hypervisor
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dm: set pass-thru dev virtual class id 

For pass-thru PCI dev,
get the class id from the physical pci config space,
then set the value in virtual config space class id.

Tracked-On: #6357

Signed-off-by: Liu,Junming <junming.liu@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
This commit is contained in:
Liu,Junming 2021-09-18 18:35:41 +00:00 committed by wenlingz
parent 1013b291d3
commit d56442bed5
1 changed files with 3 additions and 0 deletions
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3
devicemodel/hw/pci/passthrough.c
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@ -561,6 +561,7 @@ passthru_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
int vmsix_on_msi_bar_id = -1;
struct acrn_pcidev pcidev = {};
uint16_t vendor = 0, device = 0;
uint8_t class = 0;
ptdev = NULL;
error = -EINVAL;
@ -656,8 +657,10 @@ passthru_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
*/
vendor = read_config(ptdev->phys_dev, PCIR_VENDOR, 2);
device = read_config(ptdev->phys_dev, PCIR_DEVICE, 2);
class = read_config(ptdev->phys_dev, PCIR_CLASS, 1);
pci_set_cfgdata16(dev, PCIR_VENDOR, vendor);
pci_set_cfgdata16(dev, PCIR_DEVICE, device);
pci_set_cfgdata8(dev, PCIR_CLASS, class);
#if AUDIO_NHLT_HACK
/* device specific handling: