diff options
Diffstat (limited to 'OvmfPkg/QemuVideoDxe/Gop.c')
| -rw-r--r-- | OvmfPkg/QemuVideoDxe/Gop.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/OvmfPkg/QemuVideoDxe/Gop.c b/OvmfPkg/QemuVideoDxe/Gop.c index 512fd27acb..b479d24a87 100644 --- a/OvmfPkg/QemuVideoDxe/Gop.c +++ b/OvmfPkg/QemuVideoDxe/Gop.c @@ -1,7 +1,7 @@ /** @file
Graphics Output Protocol functions for the QEMU video controller.
- Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -196,9 +196,10 @@ Routine Description: --*/
{
- QEMU_VIDEO_PRIVATE_DATA *Private;
- QEMU_VIDEO_MODE_DATA *ModeData;
- RETURN_STATUS Status;
+ QEMU_VIDEO_PRIVATE_DATA *Private;
+ QEMU_VIDEO_MODE_DATA *ModeData;
+ RETURN_STATUS Status;
+ EFI_GRAPHICS_OUTPUT_BLT_PIXEL Black;
Private = QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS (This);
@@ -271,6 +272,21 @@ Routine Description: }
ASSERT (Status == RETURN_SUCCESS);
+ //
+ // Per UEFI Spec, need to clear the visible portions of the output display to black.
+ //
+ ZeroMem (&Black, sizeof (Black));
+ Status = FrameBufferBlt (
+ Private->FrameBufferBltConfigure,
+ &Black,
+ EfiBltVideoFill,
+ 0, 0,
+ 0, 0,
+ This->Mode->Info->HorizontalResolution, This->Mode->Info->VerticalResolution,
+ 0
+ );
+ ASSERT_RETURN_ERROR (Status);
+
return EFI_SUCCESS;
}
|