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OvmfPkg: Add virtio keyboard device hooks

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This commit adds:
- missing virtio subsystem ID for input device
- PrepareVirtioKeyboardDevicePath() handler to boot manager library

Signed-off-by: Paweł Poławski <ppolawsk@redhat.com>
This commit is contained in:
Paweł Poławski 2024-07-29 10:50:55 +02:00 committed by Ard Biesheuvel
parent 0986082d7e
commit 0eea7b9c02
2 changed files with 29 additions and 0 deletions
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1
OvmfPkg/Include/IndustryStandard/Virtio10.h
View File

@ -17,6 +17,7 @@
// Subsystem Device IDs (to be) introduced in VirtIo 1.0
//
#define VIRTIO_SUBSYSTEM_GPU_DEVICE 16
#define VIRTIO_SUBSYSTEM_INPUT 18
//
// Subsystem Device IDs from the VirtIo spec at git commit 87fa6b5d8155;
// <https://github.com/oasis-tcs/virtio-spec/tree/87fa6b5d8155>.

28
OvmfPkg/Library/PlatformBootManagerLib/BdsPlatform.c
View File

@ -1111,6 +1111,28 @@ PrepareVirtioSerialDevicePath (
return EFI_SUCCESS;
}
EFI_STATUS
PrepareVirtioKeyboardDevicePath (
IN EFI_HANDLE DeviceHandle
)
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
DevicePath = NULL;
Status = gBS->HandleProtocol (
DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID *)&DevicePath
);
if (EFI_ERROR (Status)) {
return Status;
}
EfiBootManagerUpdateConsoleVariable (ConIn, DevicePath, NULL);
return EFI_SUCCESS;
}
EFI_STATUS
VisitAllInstancesOfProtocol (
IN EFI_GUID *Id,
@ -1287,6 +1309,12 @@ DetectAndPreparePlatformPciDevicePath (
return EFI_SUCCESS;
}
if ((Pci->Hdr.VendorId == 0x1af4) && (Pci->Hdr.DeviceId == 0x1052)) {
DEBUG ((DEBUG_INFO, "Found virtio keyboard device\n"));
PrepareVirtioKeyboardDevicePath (Handle);
return EFI_SUCCESS;
}
return Status;
}