Add support for sending a GetDisplayInfo command.
Signed-off-by: Gerd Hoffmann <[email protected]>
---
OvmfPkg/VirtioGpuDxe/VirtioGpu.h | 6 ++++++
OvmfPkg/VirtioGpuDxe/Commands.c | 20 ++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
index 2155b261d43e..1d781088bb3f 100644
--- a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
+++ b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
@@ -366,6 +366,12 @@ VirtioGpuResourceFlush (
IN UINT32 ResourceId
);
+EFI_STATUS
+VirtioGpuGetDisplayInfo (
+ IN OUT VGPU_DEV *VgpuDev,
+ volatile VIRTIO_GPU_RESP_DISPLAY_INFO *Response
+ );
+
/**
Release guest-side and host-side resources that are related to an initialized
VGPU_GOP.Gop.
diff --git a/OvmfPkg/VirtioGpuDxe/Commands.c b/OvmfPkg/VirtioGpuDxe/Commands.c
index b9a3ea923021..4318d3d771c5 100644
--- a/OvmfPkg/VirtioGpuDxe/Commands.c
+++ b/OvmfPkg/VirtioGpuDxe/Commands.c
@@ -828,3 +828,23 @@ VirtioGpuResourceFlush (
sizeof Request
);
}
+
+EFI_STATUS
+VirtioGpuGetDisplayInfo (
+ IN OUT VGPU_DEV *VgpuDev,
+ volatile VIRTIO_GPU_RESP_DISPLAY_INFO *Response
+ )
+{
+ volatile VIRTIO_GPU_CONTROL_HEADER Request;
+
+ return VirtioGpuSendCommandWithReply (
+ VgpuDev,
+ VirtioGpuCmdGetDisplayInfo,
+ FALSE, // Fence
+ &Request,
+ sizeof Request,
+ VirtioGpuRespOkDisplayInfo,
+ &Response->Header,
+ sizeof *Response
+ );
+}
--
2.35.1
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