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-rw-r--r--OvmfPkg/Include/IndustryStandard/LegacyVgaBios.h97
-rw-r--r--OvmfPkg/QemuVideoDxe/Driver.c5
-rw-r--r--OvmfPkg/QemuVideoDxe/Qemu.h5
-rw-r--r--OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf4
-rw-r--r--OvmfPkg/QemuVideoDxe/VbeShim.asm287
-rw-r--r--OvmfPkg/QemuVideoDxe/VbeShim.c275
-rw-r--r--OvmfPkg/QemuVideoDxe/VbeShim.h701
-rwxr-xr-xOvmfPkg/QemuVideoDxe/VbeShim.sh85
-rw-r--r--OvmfPkg/README11
9 files changed, 1470 insertions, 0 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/LegacyVgaBios.h b/OvmfPkg/Include/IndustryStandard/LegacyVgaBios.h
new file mode 100644
index 0000000000..d55d1283f4
--- /dev/null
+++ b/OvmfPkg/Include/IndustryStandard/LegacyVgaBios.h
@@ -0,0 +1,97 @@
+/** @file
+ Type definitions related to the VBE (VESA BIOS Extension, Int10h AH=4Fh)
+ services GET INFORMATION (AL=00h) and GET MODE INFORMATION (AL=01h).
+
+ For reference, see Ralf Brown's Interrupt List:
+ <http://www.cs.cmu.edu/~ralf/files.html>
+ <http://www.ctyme.com/rbrown.htm>
+
+ Copyright (C) 2014, Red Hat, Inc.
+
+ This program and the accompanying materials are licensed and made available
+ under the terms and conditions of the BSD License which accompanies this
+ distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+ WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+#ifndef __LEGACY_VGA_BIOS_H__
+#define __LEGACY_VGA_BIOS_H__
+
+#include <Base.h>
+
+#pragma pack (1)
+typedef struct {
+ UINT8 Signature[4];
+ UINT16 VesaVersion;
+ UINT32 OemNameAddress;
+ UINT32 Capabilities;
+ UINT32 ModeListAddress;
+ UINT16 VideoMem64K;
+ UINT16 OemSoftwareVersion;
+ UINT32 VendorNameAddress;
+ UINT32 ProductNameAddress;
+ UINT32 ProductRevAddress;
+} VBE_INFO_BASE;
+
+typedef struct {
+ VBE_INFO_BASE Base;
+ UINT8 Buffer[256 - sizeof (VBE_INFO_BASE)];
+} VBE_INFO;
+
+typedef struct {
+ UINT16 ModeAttr;
+ UINT8 WindowAAttr;
+ UINT8 WindowBAttr;
+ UINT16 WindowGranularityKB;
+ UINT16 WindowSizeKB;
+ UINT16 WindowAStartSegment;
+ UINT16 WindowBStartSegment;
+ UINT32 WindowPositioningAddress;
+ UINT16 BytesPerScanLine;
+
+ UINT16 Width;
+ UINT16 Height;
+ UINT8 CharCellWidth;
+ UINT8 CharCellHeight;
+ UINT8 NumPlanes;
+ UINT8 BitsPerPixel;
+ UINT8 NumBanks;
+ UINT8 MemoryModel;
+ UINT8 BankSizeKB;
+ UINT8 NumImagePagesLessOne;
+ UINT8 Vbe3;
+
+ UINT8 RedMaskSize;
+ UINT8 RedMaskPos;
+ UINT8 GreenMaskSize;
+ UINT8 GreenMaskPos;
+ UINT8 BlueMaskSize;
+ UINT8 BlueMaskPos;
+ UINT8 ReservedMaskSize;
+ UINT8 ReservedMaskPos;
+ UINT8 DirectColorModeInfo;
+
+ UINT32 LfbAddress;
+ UINT32 OffScreenAddress;
+ UINT16 OffScreenSizeKB;
+
+ UINT16 BytesPerScanLineLinear;
+ UINT8 NumImagesLessOneBanked;
+ UINT8 NumImagesLessOneLinear;
+ UINT8 RedMaskSizeLinear;
+ UINT8 RedMaskPosLinear;
+ UINT8 GreenMaskSizeLinear;
+ UINT8 GreenMaskPosLinear;
+ UINT8 BlueMaskSizeLinear;
+ UINT8 BlueMaskPosLinear;
+ UINT8 ReservedMaskSizeLinear;
+ UINT8 ReservedMaskPosLinear;
+ UINT32 MaxPixelClockHz;
+ UINT8 Reserved[190];
+} VBE_MODE_INFO;
+#pragma pack ()
+
+#endif
diff --git a/OvmfPkg/QemuVideoDxe/Driver.c b/OvmfPkg/QemuVideoDxe/Driver.c
index c44b8b2603..2194cbef44 100644
--- a/OvmfPkg/QemuVideoDxe/Driver.c
+++ b/OvmfPkg/QemuVideoDxe/Driver.c
@@ -398,6 +398,11 @@ QemuVideoControllerDriverStart (
goto UninstallGop;
}
+ if (Private->Variant == QEMU_VIDEO_BOCHS_MMIO ||
+ Private->Variant == QEMU_VIDEO_BOCHS) {
+ InstallVbeShim (Card->Name, Private->GraphicsOutput.Mode->FrameBufferBase);
+ }
+
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
diff --git a/OvmfPkg/QemuVideoDxe/Qemu.h b/OvmfPkg/QemuVideoDxe/Qemu.h
index 098ee774e0..4bf51c7150 100644
--- a/OvmfPkg/QemuVideoDxe/Qemu.h
+++ b/OvmfPkg/QemuVideoDxe/Qemu.h
@@ -502,4 +502,9 @@ QemuVideoBochsModeSetup (
QEMU_VIDEO_PRIVATE_DATA *Private
);
+VOID
+InstallVbeShim (
+ IN CONST CHAR16 *CardName,
+ IN EFI_PHYSICAL_ADDRESS FrameBufferBase
+ );
#endif
diff --git a/OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf b/OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
index 30284fcce0..5180b27600 100644
--- a/OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
+++ b/OvmfPkg/QemuVideoDxe/QemuVideoDxe.inf
@@ -38,10 +38,12 @@
DriverSupportedEfiVersion.c
Gop.c
Initialize.c
+ VbeShim.c
[Packages]
MdePkg/MdePkg.dec
OptionRomPkg/OptionRomPkg.dec
+ OvmfPkg/OvmfPkg.dec
[LibraryClasses]
BaseMemoryLib
@@ -49,6 +51,8 @@
DebugLib
DevicePathLib
MemoryAllocationLib
+ PciLib
+ PrintLib
TimerLib
UefiBootServicesTableLib
UefiDriverEntryPoint
diff --git a/OvmfPkg/QemuVideoDxe/VbeShim.asm b/OvmfPkg/QemuVideoDxe/VbeShim.asm
new file mode 100644
index 0000000000..18fa9209d4
--- /dev/null
+++ b/OvmfPkg/QemuVideoDxe/VbeShim.asm
@@ -0,0 +1,287 @@
+;------------------------------------------------------------------------------
+; @file
+; A minimal Int10h stub that allows the Windows 2008 R2 SP1 UEFI guest's buggy,
+; default VGA driver to switch to 1024x768x32, on the stdvga and QXL video
+; cards of QEMU.
+;
+; Copyright (C) 2014, Red Hat, Inc.
+; Copyright (c) 2013 - 2014, 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 which accompanies this
+; distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+; WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+; enable this macro for debug messages
+;%define DEBUG
+
+%macro DebugLog 1
+%ifdef DEBUG
+ push si
+ mov si, %1
+ call PrintStringSi
+ pop si
+%endif
+%endmacro
+
+
+BITS 16
+ORG 0
+
+VbeInfo:
+TIMES 256 nop
+
+VbeModeInfo:
+TIMES 256 nop
+
+
+Handler:
+ cmp ax, 0x4f00
+ je GetInfo
+ cmp ax, 0x4f01
+ je GetModeInfo
+ cmp ax, 0x4f02
+ je SetMode
+ cmp ax, 0x4f03
+ je GetMode
+ cmp ax, 0x4f10
+ je GetPmCapabilities
+ cmp ax, 0x4f15
+ je ReadEdid
+ cmp ah, 0x00
+ je SetModeLegacy
+ DebugLog StrUnkownFunction
+Hang:
+ jmp Hang
+
+
+GetInfo:
+ push es
+ push di
+ push ds
+ push si
+ push cx
+
+ DebugLog StrEnterGetInfo
+
+ ; target (es:di) set on input
+ push cs
+ pop ds
+ mov si, VbeInfo
+ ; source (ds:si) set now
+
+ mov cx, 256
+ cld
+ rep movsb
+
+ pop cx
+ pop si
+ pop ds
+ pop di
+ pop es
+ jmp Success
+
+
+GetModeInfo:
+ push es
+ push di
+ push ds
+ push si
+ push cx
+
+ DebugLog StrEnterGetModeInfo
+
+ and cx, ~0x4000 ; clear potentially set LFB bit in mode number
+ cmp cx, 0x00f1
+ je KnownMode1
+ DebugLog StrUnkownMode
+ jmp Hang
+KnownMode1:
+ ; target (es:di) set on input
+ push cs
+ pop ds
+ mov si, VbeModeInfo
+ ; source (ds:si) set now
+
+ mov cx, 256
+ cld
+ rep movsb
+
+ pop cx
+ pop si
+ pop ds
+ pop di
+ pop es
+ jmp Success
+
+
+%define ATT_ADDRESS_REGISTER 0x03c0
+%define VBE_DISPI_IOPORT_INDEX 0x01ce
+%define VBE_DISPI_IOPORT_DATA 0x01d0
+
+%define VBE_DISPI_INDEX_XRES 0x1
+%define VBE_DISPI_INDEX_YRES 0x2
+%define VBE_DISPI_INDEX_BPP 0x3
+%define VBE_DISPI_INDEX_ENABLE 0x4
+%define VBE_DISPI_INDEX_BANK 0x5
+%define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
+%define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
+%define VBE_DISPI_INDEX_X_OFFSET 0x8
+%define VBE_DISPI_INDEX_Y_OFFSET 0x9
+
+%define VBE_DISPI_ENABLED 0x01
+%define VBE_DISPI_LFB_ENABLED 0x40
+
+%macro BochsWrite 2
+ push dx
+ push ax
+
+ mov dx, VBE_DISPI_IOPORT_INDEX
+ mov ax, %1
+ out dx, ax
+
+ mov dx, VBE_DISPI_IOPORT_DATA
+ mov ax, %2
+ out dx, ax
+
+ pop ax
+ pop dx
+%endmacro
+
+SetMode:
+ push dx
+ push ax
+
+ DebugLog StrEnterSetMode
+
+ cmp bx, 0x40f1
+ je KnownMode2
+ DebugLog StrUnkownMode
+ jmp Hang
+KnownMode2:
+
+ ; unblank
+ mov dx, ATT_ADDRESS_REGISTER
+ mov al, 0x20
+ out dx, al
+
+ BochsWrite VBE_DISPI_INDEX_ENABLE, 0
+ BochsWrite VBE_DISPI_INDEX_BANK, 0
+ BochsWrite VBE_DISPI_INDEX_X_OFFSET, 0
+ BochsWrite VBE_DISPI_INDEX_Y_OFFSET, 0
+ BochsWrite VBE_DISPI_INDEX_BPP, 32
+ BochsWrite VBE_DISPI_INDEX_XRES, 1024
+ BochsWrite VBE_DISPI_INDEX_VIRT_WIDTH, 1024
+ BochsWrite VBE_DISPI_INDEX_YRES, 768
+ BochsWrite VBE_DISPI_INDEX_VIRT_HEIGHT, 768
+ BochsWrite VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED | VBE_DISPI_LFB_ENABLED
+
+ pop ax
+ pop dx
+ jmp Success
+
+
+GetMode:
+ DebugLog StrEnterGetMode
+ mov bx, 0x40f1
+ jmp Success
+
+
+GetPmCapabilities:
+ DebugLog StrGetPmCapabilities
+ jmp Unsupported
+
+
+ReadEdid:
+ DebugLog StrReadEdid
+ jmp Unsupported
+
+
+SetModeLegacy:
+ DebugLog StrEnterSetModeLegacy
+
+ cmp al, 0x03
+ je KnownMode3
+ cmp al, 0x12
+ je KnownMode4
+ DebugLog StrUnkownMode
+ jmp Hang
+KnownMode3:
+ mov al, 0x30
+ jmp SetModeLegacyDone
+KnownMode4:
+ mov al, 0x20
+SetModeLegacyDone:
+ DebugLog StrExitSuccess
+ iret
+
+
+Success:
+ DebugLog StrExitSuccess
+ mov ax, 0x004f
+ iret
+
+
+Unsupported:
+ DebugLog StrExitUnsupported
+ mov ax, 0x014f
+ iret
+
+
+%ifdef DEBUG
+PrintStringSi:
+ pusha
+ push ds ; save original
+ push cs
+ pop ds
+ mov dx, 0x0402
+PrintStringSiLoop:
+ lodsb
+ cmp al, 0
+ je PrintStringSiDone
+ out dx, al
+ jmp PrintStringSiLoop
+PrintStringSiDone:
+ pop ds ; restore original
+ popa
+ ret
+
+
+StrExitSuccess:
+ db 'Exit', 0x0a, 0
+
+StrExitUnsupported:
+ db 'Unsupported', 0x0a, 0
+
+StrUnkownFunction:
+ db 'Unknown Function', 0x0a, 0
+
+StrEnterGetInfo:
+ db 'GetInfo', 0x0a, 0
+
+StrEnterGetModeInfo:
+ db 'GetModeInfo', 0x0a, 0
+
+StrEnterGetMode:
+ db 'GetMode', 0x0a, 0
+
+StrEnterSetMode:
+ db 'SetMode', 0x0a, 0
+
+StrEnterSetModeLegacy:
+ db 'SetModeLegacy', 0x0a, 0
+
+StrUnkownMode:
+ db 'Unkown Mode', 0x0a, 0
+
+StrGetPmCapabilities:
+ db 'GetPmCapabilities', 0x0a, 0
+
+StrReadEdid:
+ db 'ReadEdid', 0x0a, 0
+%endif
diff --git a/OvmfPkg/QemuVideoDxe/VbeShim.c b/OvmfPkg/QemuVideoDxe/VbeShim.c
new file mode 100644
index 0000000000..ae25b644cf
--- /dev/null
+++ b/OvmfPkg/QemuVideoDxe/VbeShim.c
@@ -0,0 +1,275 @@
+/** @file
+ Install a fake VGABIOS service handler (real mode Int10h) for the buggy
+ Windows 2008 R2 SP1 UEFI guest.
+
+ The handler is never meant to be directly executed by a VCPU; it's there for
+ the internal real mode emulator of Windows 2008 R2 SP1.
+
+ The code is based on Ralf Brown's Interrupt List:
+ <http://www.cs.cmu.edu/~ralf/files.html>
+ <http://www.ctyme.com/rbrown.htm>
+
+ Copyright (C) 2014, Red Hat, Inc.
+ Copyright (c) 2013 - 2014, 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 which accompanies this
+ distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+ WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+#include <IndustryStandard/LegacyVgaBios.h>
+#include <Library/DebugLib.h>
+#include <Library/PciLib.h>
+#include <Library/PrintLib.h>
+
+#include "Qemu.h"
+#include "VbeShim.h"
+
+#pragma pack (1)
+typedef struct {
+ UINT16 Offset;
+ UINT16 Segment;
+} IVT_ENTRY;
+#pragma pack ()
+
+//
+// This string is displayed by Windows 2008 R2 SP1 in the Screen Resolution,
+// Advanced Settings dialog. It should be short.
+//
+STATIC CONST CHAR8 mProductRevision[] = "OVMF Int10h (fake)";
+
+/**
+ Install the VBE Info and VBE Mode Info structures, and the VBE service
+ handler routine in the C segment. Point the real-mode Int10h interrupt vector
+ to the handler. The only advertised mode is 1024x768x32.
+
+ @param[in] CardName Name of the video card to be exposed in the
+ Product Name field of the VBE Info structure. The
+ parameter must originate from a
+ QEMU_VIDEO_CARD.Name field.
+ @param[in] FrameBufferBase Guest-physical base address of the video card's
+ frame buffer.
+**/
+VOID
+InstallVbeShim (
+ IN CONST CHAR16 *CardName,
+ IN EFI_PHYSICAL_ADDRESS FrameBufferBase
+ )
+{
+ EFI_PHYSICAL_ADDRESS Segment0, SegmentC, SegmentF;
+ UINTN Segment0Pages;
+ IVT_ENTRY *Int0x10;
+ EFI_STATUS Status;
+ UINTN Pam1Address;
+ UINT8 Pam1;
+ UINTN SegmentCPages;
+ VBE_INFO *VbeInfoFull;
+ VBE_INFO_BASE *VbeInfo;
+ UINT8 *Ptr;
+ UINTN Printed;
+ VBE_MODE_INFO *VbeModeInfo;
+
+ Segment0 = 0x00000;
+ SegmentC = 0xC0000;
+ SegmentF = 0xF0000;
+
+ //
+ // Attempt to cover the real mode IVT with an allocation. This is a UEFI
+ // driver, hence the arch protocols have been installed previously. Among
+ // those, the CPU arch protocol has configured the IDT, so we can overwrite
+ // the IVT used in real mode.
+ //
+ // The allocation request may fail, eg. if LegacyBiosDxe has already run.
+ //
+ Segment0Pages = 1;
+ Int0x10 = (IVT_ENTRY *)(UINTN)Segment0 + 0x10;
+ Status = gBS->AllocatePages (AllocateAddress, EfiBootServicesCode,
+ Segment0Pages, &Segment0);
+
+ if (EFI_ERROR (Status)) {
+ EFI_PHYSICAL_ADDRESS Handler;
+
+ //
+ // Check if a video BIOS handler has been installed previously -- we
+ // shouldn't override a real video BIOS with our shim, nor our own shim if
+ // it's already present.
+ //
+ Handler = (Int0x10->Segment << 4) + Int0x10->Offset;
+ if (Handler >= SegmentC && Handler < SegmentF) {
+ DEBUG ((EFI_D_VERBOSE, "%a: Video BIOS handler found at %04x:%04x\n",
+ __FUNCTION__, Int0x10->Segment, Int0x10->Offset));
+ return;
+ }
+
+ //
+ // Otherwise we'll overwrite the Int10h vector, even though we may not own
+ // the page at zero.
+ //
+ DEBUG ((EFI_D_VERBOSE, "%a: failed to allocate page at zero: %r\n",
+ __FUNCTION__, Status));
+ } else {
+ //
+ // We managed to allocate the page at zero. SVN r14218 guarantees that it
+ // is NUL-filled.
+ //
+ ASSERT (Int0x10->Segment == 0x0000);
+ ASSERT (Int0x10->Offset == 0x0000);
+ }
+
+ //
+ // Put the shim in place first.
+ //
+ Pam1Address = PCI_LIB_ADDRESS (0, 0, 0, 0x5A);
+ //
+ // low nibble covers 0xC0000 to 0xC3FFF
+ // high nibble covers 0xC4000 to 0xC7FFF
+ // bit1 in each nibble is Write Enable
+ // bit0 in each nibble is Read Enable
+ //
+ Pam1 = PciRead8 (Pam1Address);
+ PciWrite8 (Pam1Address, Pam1 | (BIT1 | BIT0));
+
+ //
+ // We never added memory space durig PEI or DXE for the C segment, so we
+ // don't need to (and can't) allocate from there. Also, guest operating
+ // systems will see a hole in the UEFI memory map there.
+ //
+ SegmentCPages = 4;
+
+ ASSERT (sizeof mVbeShim <= EFI_PAGES_TO_SIZE (SegmentCPages));
+ CopyMem ((VOID *)(UINTN)SegmentC, mVbeShim, sizeof mVbeShim);
+
+ //
+ // Fill in the VBE INFO structure.
+ //
+ VbeInfoFull = (VBE_INFO *)(UINTN)SegmentC;
+ VbeInfo = &VbeInfoFull->Base;
+ Ptr = VbeInfoFull->Buffer;
+
+ CopyMem (VbeInfo->Signature, "VESA", 4);
+ VbeInfo->VesaVersion = 0x0300;
+
+ VbeInfo->OemNameAddress = (UINT32)(SegmentC << 12 | (UINT16)(UINTN)Ptr);
+ CopyMem (Ptr, "QEMU", 5);
+ Ptr += 5;
+
+ VbeInfo->Capabilities = BIT0; // DAC can be switched into 8-bit mode
+
+ VbeInfo->ModeListAddress = (UINT32)(SegmentC << 12 | (UINT16)(UINTN)Ptr);
+ *(UINT16*)Ptr = 0x00f1; // mode number
+ Ptr += 2;
+ *(UINT16*)Ptr = 0xFFFF; // mode list terminator
+ Ptr += 2;
+
+ VbeInfo->VideoMem64K = (UINT16)((1024 * 768 * 4 + 65535) / 65536);
+ VbeInfo->OemSoftwareVersion = 0x0000;
+
+ VbeInfo->VendorNameAddress = (UINT32)(SegmentC << 12 | (UINT16)(UINTN)Ptr);
+ CopyMem (Ptr, "OVMF", 5);
+ Ptr += 5;
+
+ VbeInfo->ProductNameAddress = (UINT32)(SegmentC << 12 | (UINT16)(UINTN)Ptr);
+ Printed = AsciiSPrint ((CHAR8 *)Ptr,
+ sizeof VbeInfoFull->Buffer - (Ptr - VbeInfoFull->Buffer), "%s",
+ CardName);
+ Ptr += Printed + 1;
+
+ VbeInfo->ProductRevAddress = (UINT32)(SegmentC << 12 | (UINT16)(UINTN)Ptr);
+ CopyMem (Ptr, mProductRevision, sizeof mProductRevision);
+ Ptr += sizeof mProductRevision;
+
+ ASSERT (sizeof VbeInfoFull->Buffer >= Ptr - VbeInfoFull->Buffer);
+ ZeroMem (Ptr, sizeof VbeInfoFull->Buffer - (Ptr - VbeInfoFull->Buffer));
+
+ //
+ // Fil in the VBE MODE INFO structure.
+ //
+ VbeModeInfo = (VBE_MODE_INFO *)(VbeInfoFull + 1);
+
+ //
+ // bit0: mode supported by present hardware configuration
+ // bit1: optional information available (must be =1 for VBE v1.2+)
+ // bit3: set if color, clear if monochrome
+ // bit4: set if graphics mode, clear if text mode
+ // bit5: mode is not VGA-compatible
+ // bit7: linear framebuffer mode supported
+ //
+ VbeModeInfo->ModeAttr = BIT7 | BIT5 | BIT4 | BIT3 | BIT1 | BIT0;
+
+ //
+ // bit0: exists
+ // bit1: bit1: readable
+ // bit2: writeable
+ //
+ VbeModeInfo->WindowAAttr = BIT2 | BIT1 | BIT0;
+
+ VbeModeInfo->WindowBAttr = 0x00;
+ VbeModeInfo->WindowGranularityKB = 0x0040;
+ VbeModeInfo->WindowSizeKB = 0x0040;
+ VbeModeInfo->WindowAStartSegment = 0xA000;
+ VbeModeInfo->WindowBStartSegment = 0x0000;
+ VbeModeInfo->WindowPositioningAddress = 0x0000;
+ VbeModeInfo->BytesPerScanLine = 1024 * 4;
+
+ VbeModeInfo->Width = 1024;
+ VbeModeInfo->Height = 768;
+ VbeModeInfo->CharCellWidth = 8;
+ VbeModeInfo->CharCellHeight = 16;
+ VbeModeInfo->NumPlanes = 1;
+ VbeModeInfo->BitsPerPixel = 32;
+ VbeModeInfo->NumBanks = 1;
+ VbeModeInfo->MemoryModel = 6; // direct color
+ VbeModeInfo->BankSizeKB = 0;
+ VbeModeInfo->NumImagePagesLessOne = 0;
+ VbeModeInfo->Vbe3 = 0x01;
+
+ VbeModeInfo->RedMaskSize = 8;
+ VbeModeInfo->RedMaskPos = 16;
+ VbeModeInfo->GreenMaskSize = 8;
+ VbeModeInfo->GreenMaskPos = 8;
+ VbeModeInfo->BlueMaskSize = 8;
+ VbeModeInfo->BlueMaskPos = 0;
+ VbeModeInfo->ReservedMaskSize = 8;
+ VbeModeInfo->ReservedMaskPos = 24;
+
+ //
+ // bit1: Bytes in reserved field may be used by application
+ //
+ VbeModeInfo->DirectColorModeInfo = BIT1;
+
+ VbeModeInfo->LfbAddress = (UINT32)FrameBufferBase;
+ VbeModeInfo->OffScreenAddress = 0;
+ VbeModeInfo->OffScreenSizeKB = 0;
+
+ VbeModeInfo->BytesPerScanLineLinear = 1024 * 4;
+ VbeModeInfo->NumImagesLessOneBanked = 0;
+ VbeModeInfo->NumImagesLessOneLinear = 0;
+ VbeModeInfo->RedMaskSizeLinear = 8;
+ VbeModeInfo->RedMaskPosLinear = 16;
+ VbeModeInfo->GreenMaskSizeLinear = 8;
+ VbeModeInfo->GreenMaskPosLinear = 8;
+ VbeModeInfo->BlueMaskSizeLinear = 8;
+ VbeModeInfo->BlueMaskPosLinear = 0;
+ VbeModeInfo->ReservedMaskSizeLinear = 8;
+ VbeModeInfo->ReservedMaskPosLinear = 24;
+ VbeModeInfo->MaxPixelClockHz = 0;
+
+ ZeroMem (VbeModeInfo->Reserved, sizeof VbeModeInfo->Reserved);
+
+ //
+ // Clear Write Enable (bit1), keep Read Enable (bit0) set
+ //
+ PciWrite8 (Pam1Address, (Pam1 & ~BIT1) | BIT0);
+
+ //
+ // Second, point the Int10h vector at the shim.
+ //
+ Int0x10->Segment = SegmentC >> 4;
+ Int0x10->Offset = (EFI_PHYSICAL_ADDRESS)(UINTN)(VbeModeInfo + 1) - SegmentC;
+
+ DEBUG ((EFI_D_INFO, "%a: VBE shim installed\n", __FUNCTION__));
+}
diff --git a/OvmfPkg/QemuVideoDxe/VbeShim.h b/OvmfPkg/QemuVideoDxe/VbeShim.h
new file mode 100644
index 0000000000..cc9b6e14cd
--- /dev/null
+++ b/OvmfPkg/QemuVideoDxe/VbeShim.h
@@ -0,0 +1,701 @@
+//
+// THIS FILE WAS GENERATED BY "VbeShim.sh". DO NOT EDIT.
+//
+#ifndef _VBE_SHIM_H_
+#define _VBE_SHIM_H_
+STATIC CONST UINT8 mVbeShim[] = {
+ /* 00000000 nop */ 0x90,
+ /* 00000001 nop */ 0x90,
+ /* 00000002 nop */ 0x90,
+ /* 00000003 nop */ 0x90,
+ /* 00000004 nop */ 0x90,
+ /* 00000005 nop */ 0x90,
+ /* 00000006 nop */ 0x90,
+ /* 00000007 nop */ 0x90,
+ /* 00000008 nop */ 0x90,
+ /* 00000009 nop */ 0x90,
+ /* 0000000A nop */ 0x90,
+ /* 0000000B nop */ 0x90,
+ /* 0000000C nop */ 0x90,
+ /* 0000000D nop */ 0x90,
+ /* 0000000E nop */ 0x90,
+ /* 0000000F nop */ 0x90,
+ /* 00000010 nop */ 0x90,
+ /* 00000011 nop */ 0x90,
+ /* 00000012 nop */ 0x90,
+ /* 00000013 nop */ 0x90,
+ /* 00000014 nop */ 0x90,
+ /* 00000015 nop */ 0x90,
+ /* 00000016 nop */ 0x90,
+ /* 00000017 nop */ 0x90,
+ /* 00000018 nop */ 0x90,
+ /* 00000019 nop */ 0x90,
+ /* 0000001A nop */ 0x90,
+ /* 0000001B nop */ 0x90,
+ /* 0000001C nop */ 0x90,
+ /* 0000001D nop */ 0x90,
+ /* 0000001E nop */ 0x90,
+ /* 0000001F nop */ 0x90,
+ /* 00000020 nop */ 0x90,
+ /* 00000021 nop */ 0x90,
+ /* 00000022 nop */ 0x90,
+ /* 00000023 nop */ 0x90,
+ /* 00000024 nop */ 0x90,
+ /* 00000025 nop */ 0x90,
+ /* 00000026 nop */ 0x90,
+ /* 00000027 nop */ 0x90,
+ /* 00000028 nop */ 0x90,
+ /* 00000029 nop */ 0x90,
+ /* 0000002A nop */ 0x90,
+ /* 0000002B nop */ 0x90,
+ /* 0000002C nop */ 0x90,
+ /* 0000002D nop */ 0x90,
+ /* 0000002E nop */ 0x90,
+ /* 0000002F nop */ 0x90,
+ /* 00000030 nop */ 0x90,
+ /* 00000031 nop */ 0x90,
+ /* 00000032 nop */ 0x90,
+ /* 00000033 nop */ 0x90,
+ /* 00000034 nop */ 0x90,
+ /* 00000035 nop */ 0x90,
+ /* 00000036 nop */ 0x90,
+ /* 00000037 nop */ 0x90,
+ /* 00000038 nop */ 0x90,
+ /* 00000039 nop */ 0x90,
+ /* 0000003A nop */ 0x90,
+ /* 0000003B nop */ 0x90,
+ /* 0000003C nop */ 0x90,
+ /* 0000003D nop */ 0x90,
+ /* 0000003E nop */ 0x90,
+ /* 0000003F nop */ 0x90,
+ /* 00000040 nop */ 0x90,
+ /* 00000041 nop */ 0x90,
+ /* 00000042 nop */ 0x90,
+ /* 00000043 nop */ 0x90,
+ /* 00000044 nop */ 0x90,
+ /* 00000045 nop */ 0x90,
+ /* 00000046 nop */ 0x90,
+ /* 00000047 nop */ 0x90,
+ /* 00000048 nop */ 0x90,
+ /* 00000049 nop */ 0x90,
+ /* 0000004A nop */ 0x90,
+ /* 0000004B nop */ 0x90,
+ /* 0000004C nop */ 0x90,
+ /* 0000004D nop */ 0x90,
+ /* 0000004E nop */ 0x90,
+ /* 0000004F nop */ 0x90,
+ /* 00000050 nop */ 0x90,
+ /* 00000051 nop */ 0x90,
+ /* 00000052 nop */ 0x90,
+ /* 00000053 nop */ 0x90,
+ /* 00000054 nop */ 0x90,
+ /* 00000055 nop */ 0x90,
+ /* 00000056 nop */ 0x90,
+ /* 00000057 nop */ 0x90,
+ /* 00000058 nop */ 0x90,
+ /* 00000059 nop */ 0x90,
+ /* 0000005A nop */ 0x90,
+ /* 0000005B nop */ 0x90,
+ /* 0000005C nop */ 0x90,
+ /* 0000005D nop */ 0x90,
+ /* 0000005E nop */ 0x90,
+ /* 0000005F nop */ 0x90,
+ /* 00000060 nop */ 0x90,
+ /* 00000061 nop */ 0x90,
+ /* 00000062 nop */ 0x90,
+ /* 00000063 nop */ 0x90,
+ /* 00000064 nop */ 0x90,
+ /* 00000065 nop */ 0x90,
+ /* 00000066 nop */ 0x90,
+ /* 00000067 nop */ 0x90,
+ /* 00000068 nop */ 0x90,
+ /* 00000069 nop */ 0x90,
+ /* 0000006A nop */ 0x90,
+ /* 0000006B nop */ 0x90,
+ /* 0000006C nop */ 0x90,
+ /* 0000006D nop */ 0x90,
+ /* 0000006E nop */ 0x90,
+ /* 0000006F nop */ 0x90,
+ /* 00000070 nop */ 0x90,
+ /* 00000071 nop */ 0x90,
+ /* 00000072 nop */ 0x90,
+ /* 00000073 nop */ 0x90,
+ /* 00000074 nop */ 0x90,
+ /* 00000075 nop */ 0x90,
+ /* 00000076 nop */ 0x90,
+ /* 00000077 nop */ 0x90,
+ /* 00000078 nop */ 0x90,
+ /* 00000079 nop */ 0x90,
+ /* 0000007A nop */ 0x90,
+ /* 0000007B nop */ 0x90,
+ /* 0000007C nop */ 0x90,
+ /* 0000007D nop */ 0x90,
+ /* 0000007E nop */ 0x90,
+ /* 0000007F nop */ 0x90,
+ /* 00000080 nop */ 0x90,
+ /* 00000081 nop */ 0x90,
+ /* 00000082 nop */ 0x90,
+ /* 00000083 nop */ 0x90,
+ /* 00000084 nop */ 0x90,
+ /* 00000085 nop */ 0x90,
+ /* 00000086 nop */ 0x90,
+ /* 00000087 nop */ 0x90,
+ /* 00000088 nop */ 0x90,
+ /* 00000089 nop */ 0x90,
+ /* 0000008A nop */ 0x90,
+ /* 0000008B nop */ 0x90,
+ /* 0000008C nop */ 0x90,
+ /* 0000008D nop */ 0x90,
+ /* 0000008E nop */ 0x90,
+ /* 0000008F nop */ 0x90,
+ /* 00000090 nop */ 0x90,
+ /* 00000091 nop */ 0x90,
+ /* 00000092 nop */ 0x90,
+ /* 00000093 nop */ 0x90,
+ /* 00000094 nop */ 0x90,
+ /* 00000095 nop */ 0x90,
+ /* 00000096 nop */ 0x90,
+ /* 00000097 nop */ 0x90,
+ /* 00000098 nop */ 0x90,
+ /* 00000099 nop */ 0x90,
+ /* 0000009A nop */ 0x90,
+ /* 0000009B nop */ 0x90,
+ /* 0000009C nop */ 0x90,
+ /* 0000009D nop */ 0x90,
+ /* 0000009E nop */ 0x90,
+ /* 0000009F nop */ 0x90,
+ /* 000000A0 nop */ 0x90,
+ /* 000000A1 nop */ 0x90,
+ /* 000000A2 nop */ 0x90,
+ /* 000000A3 nop */ 0x90,
+ /* 000000A4 nop */ 0x90,
+ /* 000000A5 nop */ 0x90,
+ /* 000000A6 nop */ 0x90,
+ /* 000000A7 nop */ 0x90,
+ /* 000000A8 nop */ 0x90,
+ /* 000000A9 nop */ 0x90,
+ /* 000000AA nop */ 0x90,
+ /* 000000AB nop */ 0x90,
+ /* 000000AC nop */ 0x90,
+ /* 000000AD nop */ 0x90,
+ /* 000000AE nop */ 0x90,
+ /* 000000AF nop */ 0x90,
+ /* 000000B0 nop */ 0x90,
+ /* 000000B1 nop */ 0x90,
+ /* 000000B2 nop */ 0x90,
+ /* 000000B3 nop */ 0x90,
+ /* 000000B4 nop */ 0x90,
+ /* 000000B5 nop */ 0x90,
+ /* 000000B6 nop */ 0x90,
+ /* 000000B7 nop */ 0x90,
+ /* 000000B8 nop */ 0x90,
+ /* 000000B9 nop */ 0x90,
+ /* 000000BA nop */ 0x90,
+ /* 000000BB nop */ 0x90,
+ /* 000000BC nop */ 0x90,
+ /* 000000BD nop */ 0x90,
+ /* 000000BE nop */ 0x90,
+ /* 000000BF nop */ 0x90,
+ /* 000000C0 nop */ 0x90,
+ /* 000000C1 nop */ 0x90,
+ /* 000000C2 nop */ 0x90,
+ /* 000000C3 nop */ 0x90,
+ /* 000000C4 nop */ 0x90,
+ /* 000000C5 nop */ 0x90,
+ /* 000000C6 nop */ 0x90,
+ /* 000000C7 nop */ 0x90,
+ /* 000000C8 nop */ 0x90,
+ /* 000000C9 nop */ 0x90,
+ /* 000000CA nop */ 0x90,
+ /* 000000CB nop */ 0x90,
+ /* 000000CC nop */ 0x90,
+ /* 000000CD nop */ 0x90,
+ /* 000000CE nop */ 0x90,
+ /* 000000CF nop */ 0x90,
+ /* 000000D0 nop */ 0x90,
+ /* 000000D1 nop */ 0x90,
+ /* 000000D2 nop */ 0x90,
+ /* 000000D3 nop */ 0x90,
+ /* 000000D4 nop */ 0x90,
+ /* 000000D5 nop */ 0x90,
+ /* 000000D6 nop */ 0x90,
+ /* 000000D7 nop */ 0x90,
+ /* 000000D8 nop */ 0x90,
+ /* 000000D9 nop */ 0x90,
+ /* 000000DA nop */ 0x90,
+ /* 000000DB nop */ 0x90,
+ /* 000000DC nop */ 0x90,
+ /* 000000DD nop */ 0x90,
+ /* 000000DE nop */ 0x90,
+ /* 000000DF nop */ 0x90,
+ /* 000000E0 nop */ 0x90,
+ /* 000000E1 nop */ 0x90,
+ /* 000000E2 nop */ 0x90,
+ /* 000000E3 nop */ 0x90,
+ /* 000000E4 nop */ 0x90,
+ /* 000000E5 nop */ 0x90,
+ /* 000000E6 nop */ 0x90,
+ /* 000000E7 nop */ 0x90,
+ /* 000000E8 nop */ 0x90,
+ /* 000000E9 nop */ 0x90,
+ /* 000000EA nop */ 0x90,
+ /* 000000EB nop */ 0x90,
+ /* 000000EC nop */ 0x90,
+ /* 000000ED nop */ 0x90,
+ /* 000000EE nop */ 0x90,
+ /* 000000EF nop */ 0x90,
+ /* 000000F0 nop */ 0x90,
+ /* 000000F1 nop */ 0x90,
+ /* 000000F2 nop */ 0x90,
+ /* 000000F3 nop */ 0x90,
+ /* 000000F4 nop */ 0x90,
+ /* 000000F5 nop */ 0x90,
+ /* 000000F6 nop */ 0x90,
+ /* 000000F7 nop */ 0x90,
+ /* 000000F8 nop */ 0x90,
+ /* 000000F9 nop */ 0x90,
+ /* 000000FA nop */ 0x90,
+ /* 000000FB nop */ 0x90,
+ /* 000000FC nop */ 0x90,
+ /* 000000FD nop */ 0x90,
+ /* 000000FE nop */ 0x90,
+ /* 000000FF nop */ 0x90,
+ /* 00000100 nop */ 0x90,
+ /* 00000101 nop */ 0x90,
+ /* 00000102 nop */ 0x90,
+ /* 00000103 nop */ 0x90,
+ /* 00000104 nop */ 0x90,
+ /* 00000105 nop */ 0x90,
+ /* 00000106 nop */ 0x90,
+ /* 00000107 nop */ 0x90,
+ /* 00000108 nop */ 0x90,
+ /* 00000109 nop */ 0x90,
+ /* 0000010A nop */ 0x90,
+ /* 0000010B nop */ 0x90,
+ /* 0000010C nop */ 0x90,
+ /* 0000010D nop */ 0x90,
+ /* 0000010E nop */ 0x90,
+ /* 0000010F nop */ 0x90,
+ /* 00000110 nop */ 0x90,
+ /* 00000111 nop */ 0x90,
+ /* 00000112 nop */ 0x90,
+ /* 00000113 nop */ 0x90,
+ /* 00000114 nop */ 0x90,
+ /* 00000115 nop */ 0x90,
+ /* 00000116 nop */ 0x90,
+ /* 00000117 nop */ 0x90,
+ /* 00000118 nop */ 0x90,
+ /* 00000119 nop */ 0x90,
+ /* 0000011A nop */ 0x90,
+ /* 0000011B nop */ 0x90,
+ /* 0000011C nop */ 0x90,
+ /* 0000011D nop */ 0x90,
+ /* 0000011E nop */ 0x90,
+ /* 0000011F nop */ 0x90,
+ /* 00000120 nop */ 0x90,
+ /* 00000121 nop */ 0x90,
+ /* 00000122 nop */ 0x90,
+ /* 00000123 nop */ 0x90,
+ /* 00000124 nop */ 0x90,
+ /* 00000125 nop */ 0x90,
+ /* 00000126 nop */ 0x90,
+ /* 00000127 nop */ 0x90,
+ /* 00000128 nop */ 0x90,
+ /* 00000129 nop */ 0x90,
+ /* 0000012A nop */ 0x90,
+ /* 0000012B nop */ 0x90,
+ /* 0000012C nop */ 0x90,
+ /* 0000012D nop */ 0x90,
+ /* 0000012E nop */ 0x90,
+ /* 0000012F nop */ 0x90,
+ /* 00000130 nop */ 0x90,
+ /* 00000131 nop */ 0x90,
+ /* 00000132 nop */ 0x90,
+ /* 00000133 nop */ 0x90,
+ /* 00000134 nop */ 0x90,
+ /* 00000135 nop */ 0x90,
+ /* 00000136 nop */ 0x90,
+ /* 00000137 nop */ 0x90,
+ /* 00000138 nop */ 0x90,
+ /* 00000139 nop */ 0x90,
+ /* 0000013A nop */ 0x90,
+ /* 0000013B nop */ 0x90,
+ /* 0000013C nop */ 0x90,
+ /* 0000013D nop */ 0x90,
+ /* 0000013E nop */ 0x90,
+ /* 0000013F nop */ 0x90,
+ /* 00000140 nop */ 0x90,
+ /* 00000141 nop */ 0x90,
+ /* 00000142 nop */ 0x90,
+ /* 00000143 nop */ 0x90,
+ /* 00000144 nop */ 0x90,
+ /* 00000145 nop */ 0x90,
+ /* 00000146 nop */ 0x90,
+ /* 00000147 nop */ 0x90,
+ /* 00000148 nop */ 0x90,
+ /* 00000149 nop */ 0x90,
+ /* 0000014A nop */ 0x90,
+ /* 0000014B nop */ 0x90,
+ /* 0000014C nop */ 0x90,
+ /* 0000014D nop */ 0x90,
+ /* 0000014E nop */ 0x90,
+ /* 0000014F nop */ 0x90,
+ /* 00000150 nop */ 0x90,
+ /* 00000151 nop */ 0x90,
+ /* 00000152 nop */ 0x90,
+ /* 00000153 nop */ 0x90,
+ /* 00000154 nop */ 0x90,
+ /* 00000155 nop */ 0x90,
+ /* 00000156 nop */ 0x90,
+ /* 00000157 nop */ 0x90,
+ /* 00000158 nop */ 0x90,
+ /* 00000159 nop */ 0x90,
+ /* 0000015A nop */ 0x90,
+ /* 0000015B nop */ 0x90,
+ /* 0000015C nop */ 0x90,
+ /* 0000015D nop */ 0x90,
+ /* 0000015E nop */ 0x90,
+ /* 0000015F nop */ 0x90,
+ /* 00000160 nop */ 0x90,
+ /* 00000161 nop */ 0x90,
+ /* 00000162 nop */ 0x90,
+ /* 00000163 nop */ 0x90,
+ /* 00000164 nop */ 0x90,
+ /* 00000165 nop */ 0x90,
+ /* 00000166 nop */ 0x90,
+ /* 00000167 nop */ 0x90,
+ /* 00000168 nop */ 0x90,
+ /* 00000169 nop */ 0x90,
+ /* 0000016A nop */ 0x90,
+ /* 0000016B nop */ 0x90,
+ /* 0000016C nop */ 0x90,
+ /* 0000016D nop */ 0x90,
+ /* 0000016E nop */ 0x90,
+ /* 0000016F nop */ 0x90,
+ /* 00000170 nop */ 0x90,
+ /* 00000171 nop */ 0x90,
+ /* 00000172 nop */ 0x90,
+ /* 00000173 nop */ 0x90,
+ /* 00000174 nop */ 0x90,
+ /* 00000175 nop */ 0x90,
+ /* 00000176 nop */ 0x90,
+ /* 00000177 nop */ 0x90,
+ /* 00000178 nop */ 0x90,
+ /* 00000179 nop */ 0x90,
+ /* 0000017A nop */ 0x90,
+ /* 0000017B nop */ 0x90,
+ /* 0000017C nop */ 0x90,
+ /* 0000017D nop */ 0x90,
+ /* 0000017E nop */ 0x90,
+ /* 0000017F nop */ 0x90,
+ /* 00000180 nop */ 0x90,
+ /* 00000181 nop */ 0x90,
+ /* 00000182 nop */ 0x90,
+ /* 00000183 nop */ 0x90,
+ /* 00000184 nop */ 0x90,
+ /* 00000185 nop */ 0x90,
+ /* 00000186 nop */ 0x90,
+ /* 00000187 nop */ 0x90,
+ /* 00000188 nop */ 0x90,
+ /* 00000189 nop */ 0x90,
+ /* 0000018A nop */ 0x90,
+ /* 0000018B nop */ 0x90,
+ /* 0000018C nop */ 0x90,
+ /* 0000018D nop */ 0x90,
+ /* 0000018E nop */ 0x90,
+ /* 0000018F nop */ 0x90,
+ /* 00000190 nop */ 0x90,
+ /* 00000191 nop */ 0x90,
+ /* 00000192 nop */ 0x90,
+ /* 00000193 nop */ 0x90,
+ /* 00000194 nop */ 0x90,
+ /* 00000195 nop */ 0x90,
+ /* 00000196 nop */ 0x90,
+ /* 00000197 nop */ 0x90,
+ /* 00000198 nop */ 0x90,
+ /* 00000199 nop */ 0x90,
+ /* 0000019A nop */ 0x90,
+ /* 0000019B nop */ 0x90,
+ /* 0000019C nop */ 0x90,
+ /* 0000019D nop */ 0x90,
+ /* 0000019E nop */ 0x90,
+ /* 0000019F nop */ 0x90,
+ /* 000001A0 nop */ 0x90,
+ /* 000001A1 nop */ 0x90,
+ /* 000001A2 nop */ 0x90,
+ /* 000001A3 nop */ 0x90,
+ /* 000001A4 nop */ 0x90,
+ /* 000001A5 nop */ 0x90,
+ /* 000001A6 nop */ 0x90,
+ /* 000001A7 nop */ 0x90,
+ /* 000001A8 nop */ 0x90,
+ /* 000001A9 nop */ 0x90,
+ /* 000001AA nop */ 0x90,
+ /* 000001AB nop */ 0x90,
+ /* 000001AC nop */ 0x90,
+ /* 000001AD nop */ 0x90,
+ /* 000001AE nop */ 0x90,
+ /* 000001AF nop */ 0x90,
+ /* 000001B0 nop */ 0x90,
+ /* 000001B1 nop */ 0x90,
+ /* 000001B2 nop */ 0x90,
+ /* 000001B3 nop */ 0x90,
+ /* 000001B4 nop */ 0x90,
+ /* 000001B5 nop */ 0x90,
+ /* 000001B6 nop */ 0x90,
+ /* 000001B7 nop */ 0x90,
+ /* 000001B8 nop */ 0x90,
+ /* 000001B9 nop */ 0x90,
+ /* 000001BA nop */ 0x90,
+ /* 000001BB nop */ 0x90,
+ /* 000001BC nop */ 0x90,
+ /* 000001BD nop */ 0x90,
+ /* 000001BE nop */ 0x90,
+ /* 000001BF nop */ 0x90,
+ /* 000001C0 nop */ 0x90,
+ /* 000001C1 nop */ 0x90,
+ /* 000001C2 nop */ 0x90,
+ /* 000001C3 nop */ 0x90,
+ /* 000001C4 nop */ 0x90,
+ /* 000001C5 nop */ 0x90,
+ /* 000001C6 nop */ 0x90,
+ /* 000001C7 nop */ 0x90,
+ /* 000001C8 nop */ 0x90,
+ /* 000001C9 nop */ 0x90,
+ /* 000001CA nop */ 0x90,
+ /* 000001CB nop */ 0x90,
+ /* 000001CC nop */ 0x90,
+ /* 000001CD nop */ 0x90,
+ /* 000001CE nop */ 0x90,
+ /* 000001CF nop */ 0x90,
+ /* 000001D0 nop */ 0x90,
+ /* 000001D1 nop */ 0x90,
+ /* 000001D2 nop */ 0x90,
+ /* 000001D3 nop */ 0x90,
+ /* 000001D4 nop */ 0x90,
+ /* 000001D5 nop */ 0x90,
+ /* 000001D6 nop */ 0x90,
+ /* 000001D7 nop */ 0x90,
+ /* 000001D8 nop */ 0x90,
+ /* 000001D9 nop */ 0x90,
+ /* 000001DA nop */ 0x90,
+ /* 000001DB nop */ 0x90,
+ /* 000001DC nop */ 0x90,
+ /* 000001DD nop */ 0x90,
+ /* 000001DE nop */ 0x90,
+ /* 000001DF nop */ 0x90,
+ /* 000001E0 nop */ 0x90,
+ /* 000001E1 nop */ 0x90,
+ /* 000001E2 nop */ 0x90,
+ /* 000001E3 nop */ 0x90,
+ /* 000001E4 nop */ 0x90,
+ /* 000001E5 nop */ 0x90,
+ /* 000001E6 nop */ 0x90,
+ /* 000001E7 nop */ 0x90,
+ /* 000001E8 nop */ 0x90,
+ /* 000001E9 nop */ 0x90,
+ /* 000001EA nop */ 0x90,
+ /* 000001EB nop */ 0x90,
+ /* 000001EC nop */ 0x90,
+ /* 000001ED nop */ 0x90,
+ /* 000001EE nop */ 0x90,
+ /* 000001EF nop */ 0x90,
+ /* 000001F0 nop */ 0x90,
+ /* 000001F1 nop */ 0x90,
+ /* 000001F2 nop */ 0x90,
+ /* 000001F3 nop */ 0x90,
+ /* 000001F4 nop */ 0x90,
+ /* 000001F5 nop */ 0x90,
+ /* 000001F6 nop */ 0x90,
+ /* 000001F7 nop */ 0x90,
+ /* 000001F8 nop */ 0x90,
+ /* 000001F9 nop */ 0x90,
+ /* 000001FA nop */ 0x90,
+ /* 000001FB nop */ 0x90,
+ /* 000001FC nop */ 0x90,
+ /* 000001FD nop */ 0x90,
+ /* 000001FE nop */ 0x90,
+ /* 000001FF nop */ 0x90,
+ /* 00000200 cmp ax,0x4f00 */ 0x3D, 0x00, 0x4F,
+ /* 00000203 jz 0x22d */ 0x74, 0x28,
+ /* 00000205 cmp ax,0x4f01 */ 0x3D, 0x01, 0x4F,
+ /* 00000208 jz 0x245 */ 0x74, 0x3B,
+ /* 0000020A cmp ax,0x4f02 */ 0x3D, 0x02, 0x4F,
+ /* 0000020D jz 0x269 */ 0x74, 0x5A,
+ /* 0000020F cmp ax,0x4f03 */ 0x3D, 0x03, 0x4F,
+ /* 00000212 jz word 0x331 */ 0x0F, 0x84, 0x1B, 0x01,
+ /* 00000216 cmp ax,0x4f10 */ 0x3D, 0x10, 0x4F,
+ /* 00000219 jz word 0x336 */ 0x0F, 0x84, 0x19, 0x01,
+ /* 0000021D cmp ax,0x4f15 */ 0x3D, 0x15, 0x4F,
+ /* 00000220 jz word 0x338 */ 0x0F, 0x84, 0x14, 0x01,
+ /* 00000224 cmp ah,0x0 */ 0x80, 0xFC, 0x00,
+ /* 00000227 jz word 0x33a */ 0x0F, 0x84, 0x0F, 0x01,
+ /* 0000022B jmp short 0x22b */ 0xEB, 0xFE,
+ /* 0000022D push es */ 0x06,
+ /* 0000022E push di */ 0x57,
+ /* 0000022F push ds */ 0x1E,
+ /* 00000230 push si */ 0x56,
+ /* 00000231 push cx */ 0x51,
+ /* 00000232 push cs */ 0x0E,
+ /* 00000233 pop ds */ 0x1F,
+ /* 00000234 mov si,0x0 */ 0xBE, 0x00, 0x00,
+ /* 00000237 mov cx,0x100 */ 0xB9, 0x00, 0x01,
+ /* 0000023A cld */ 0xFC,
+ /* 0000023B rep movsb */ 0xF3, 0xA4,
+ /* 0000023D pop cx */ 0x59,
+ /* 0000023E pop si */ 0x5E,
+ /* 0000023F pop ds */ 0x1F,
+ /* 00000240 pop di */ 0x5F,
+ /* 00000241 pop es */ 0x07,
+ /* 00000242 jmp word 0x34c */ 0xE9, 0x07, 0x01,
+ /* 00000245 push es */ 0x06,
+ /* 00000246 push di */ 0x57,
+ /* 00000247 push ds */ 0x1E,
+ /* 00000248 push si */ 0x56,
+ /* 00000249 push cx */ 0x51,
+ /* 0000024A and cx,0xbfff */ 0x81, 0xE1, 0xFF, 0xBF,
+ /* 0000024E cmp cx,0xf1 */ 0x81, 0xF9, 0xF1, 0x00,
+ /* 00000252 jz 0x256 */ 0x74, 0x02,
+ /* 00000254 jmp short 0x22b */ 0xEB, 0xD5,
+ /* 00000256 push cs */ 0x0E,
+ /* 00000257 pop ds */ 0x1F,
+ /* 00000258 mov si,0x100 */ 0xBE, 0x00, 0x01,
+ /* 0000025B mov cx,0x100 */ 0xB9, 0x00, 0x01,
+ /* 0000025E cld */ 0xFC,
+ /* 0000025F rep movsb */ 0xF3, 0xA4,
+ /* 00000261 pop cx */ 0x59,
+ /* 00000262 pop si */ 0x5E,
+ /* 00000263 pop ds */ 0x1F,
+ /* 00000264 pop di */ 0x5F,
+ /* 00000265 pop es */ 0x07,
+ /* 00000266 jmp word 0x34c */ 0xE9, 0xE3, 0x00,
+ /* 00000269 push dx */ 0x52,
+ /* 0000026A push ax */ 0x50,
+ /* 0000026B cmp bx,0x40f1 */ 0x81, 0xFB, 0xF1, 0x40,
+ /* 0000026F jz 0x273 */ 0x74, 0x02,
+ /* 00000271 jmp short 0x22b */ 0xEB, 0xB8,
+ /* 00000273 mov dx,0x3c0 */ 0xBA, 0xC0, 0x03,
+ /* 00000276 mov al,0x20 */ 0xB0, 0x20,
+ /* 00000278 out dx,al */ 0xEE,
+ /* 00000279 push dx */ 0x52,
+ /* 0000027A push ax */ 0x50,
+ /* 0000027B mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 0000027E mov ax,0x4 */ 0xB8, 0x04, 0x00,
+ /* 00000281 out dx,ax */ 0xEF,
+ /* 00000282 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 00000285 mov ax,0x0 */ 0xB8, 0x00, 0x00,
+ /* 00000288 out dx,ax */ 0xEF,
+ /* 00000289 pop ax */ 0x58,
+ /* 0000028A pop dx */ 0x5A,
+ /* 0000028B push dx */ 0x52,
+ /* 0000028C push ax */ 0x50,
+ /* 0000028D mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 00000290 mov ax,0x5 */ 0xB8, 0x05, 0x00,
+ /* 00000293 out dx,ax */ 0xEF,
+ /* 00000294 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 00000297 mov ax,0x0 */ 0xB8, 0x00, 0x00,
+ /* 0000029A out dx,ax */ 0xEF,
+ /* 0000029B pop ax */ 0x58,
+ /* 0000029C pop dx */ 0x5A,
+ /* 0000029D push dx */ 0x52,
+ /* 0000029E push ax */ 0x50,
+ /* 0000029F mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002A2 mov ax,0x8 */ 0xB8, 0x08, 0x00,
+ /* 000002A5 out dx,ax */ 0xEF,
+ /* 000002A6 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 000002A9 mov ax,0x0 */ 0xB8, 0x00, 0x00,
+ /* 000002AC out dx,ax */ 0xEF,
+ /* 000002AD pop ax */ 0x58,
+ /* 000002AE pop dx */ 0x5A,
+ /* 000002AF push dx */ 0x52,
+ /* 000002B0 push ax */ 0x50,
+ /* 000002B1 mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002B4 mov ax,0x9 */ 0xB8, 0x09, 0x00,
+ /* 000002B7 out dx,ax */ 0xEF,
+ /* 000002B8 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 000002BB mov ax,0x0 */ 0xB8, 0x00, 0x00,
+ /* 000002BE out dx,ax */ 0xEF,
+ /* 000002BF pop ax */ 0x58,
+ /* 000002C0 pop dx */ 0x5A,
+ /* 000002C1 push dx */ 0x52,
+ /* 000002C2 push ax */ 0x50,
+ /* 000002C3 mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002C6 mov ax,0x3 */ 0xB8, 0x03, 0x00,
+ /* 000002C9 out dx,ax */ 0xEF,
+ /* 000002CA mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 000002CD mov ax,0x20 */ 0xB8, 0x20, 0x00,
+ /* 000002D0 out dx,ax */ 0xEF,
+ /* 000002D1 pop ax */ 0x58,
+ /* 000002D2 pop dx */ 0x5A,
+ /* 000002D3 push dx */ 0x52,
+ /* 000002D4 push ax */ 0x50,
+ /* 000002D5 mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002D8 mov ax,0x1 */ 0xB8, 0x01, 0x00,
+ /* 000002DB out dx,ax */ 0xEF,
+ /* 000002DC mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 000002DF mov ax,0x400 */ 0xB8, 0x00, 0x04,
+ /* 000002E2 out dx,ax */ 0xEF,
+ /* 000002E3 pop ax */ 0x58,
+ /* 000002E4 pop dx */ 0x5A,
+ /* 000002E5 push dx */ 0x52,
+ /* 000002E6 push ax */ 0x50,
+ /* 000002E7 mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002EA mov ax,0x6 */ 0xB8, 0x06, 0x00,
+ /* 000002ED out dx,ax */ 0xEF,
+ /* 000002EE mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 000002F1 mov ax,0x400 */ 0xB8, 0x00, 0x04,
+ /* 000002F4 out dx,ax */ 0xEF,
+ /* 000002F5 pop ax */ 0x58,
+ /* 000002F6 pop dx */ 0x5A,
+ /* 000002F7 push dx */ 0x52,
+ /* 000002F8 push ax */ 0x50,
+ /* 000002F9 mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 000002FC mov ax,0x2 */ 0xB8, 0x02, 0x00,
+ /* 000002FF out dx,ax */ 0xEF,
+ /* 00000300 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 00000303 mov ax,0x300 */ 0xB8, 0x00, 0x03,
+ /* 00000306 out dx,ax */ 0xEF,
+ /* 00000307 pop ax */ 0x58,
+ /* 00000308 pop dx */ 0x5A,
+ /* 00000309 push dx */ 0x52,
+ /* 0000030A push ax */ 0x50,
+ /* 0000030B mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 0000030E mov ax,0x7 */ 0xB8, 0x07, 0x00,
+ /* 00000311 out dx,ax */ 0xEF,
+ /* 00000312 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 00000315 mov ax,0x300 */ 0xB8, 0x00, 0x03,
+ /* 00000318 out dx,ax */ 0xEF,
+ /* 00000319 pop ax */ 0x58,
+ /* 0000031A pop dx */ 0x5A,
+ /* 0000031B push dx */ 0x52,
+ /* 0000031C push ax */ 0x50,
+ /* 0000031D mov dx,0x1ce */ 0xBA, 0xCE, 0x01,
+ /* 00000320 mov ax,0x4 */ 0xB8, 0x04, 0x00,
+ /* 00000323 out dx,ax */ 0xEF,
+ /* 00000324 mov dx,0x1d0 */ 0xBA, 0xD0, 0x01,
+ /* 00000327 mov ax,0x41 */ 0xB8, 0x41, 0x00,
+ /* 0000032A out dx,ax */ 0xEF,
+ /* 0000032B pop ax */ 0x58,
+ /* 0000032C pop dx */ 0x5A,
+ /* 0000032D pop ax */ 0x58,
+ /* 0000032E pop dx */ 0x5A,
+ /* 0000032F jmp short 0x34c */ 0xEB, 0x1B,
+ /* 00000331 mov bx,0x40f1 */ 0xBB, 0xF1, 0x40,
+ /* 00000334 jmp short 0x34c */ 0xEB, 0x16,
+ /* 00000336 jmp short 0x350 */ 0xEB, 0x18,
+ /* 00000338 jmp short 0x350 */ 0xEB, 0x16,
+ /* 0000033A cmp al,0x3 */ 0x3C, 0x03,
+ /* 0000033C jz 0x345 */ 0x74, 0x07,
+ /* 0000033E cmp al,0x12 */ 0x3C, 0x12,
+ /* 00000340 jz 0x349 */ 0x74, 0x07,
+ /* 00000342 jmp word 0x22b */ 0xE9, 0xE6, 0xFE,
+ /* 00000345 mov al,0x30 */ 0xB0, 0x30,
+ /* 00000347 jmp short 0x34b */ 0xEB, 0x02,
+ /* 00000349 mov al,0x20 */ 0xB0, 0x20,
+ /* 0000034B iretw */ 0xCF,
+ /* 0000034C mov ax,0x4f */ 0xB8, 0x4F, 0x00,
+ /* 0000034F iretw */ 0xCF,
+ /* 00000350 mov ax,0x14f */ 0xB8, 0x4F, 0x01,
+ /* 00000353 iretw */ 0xCF,
+};
+#endif
diff --git a/OvmfPkg/QemuVideoDxe/VbeShim.sh b/OvmfPkg/QemuVideoDxe/VbeShim.sh
new file mode 100755
index 0000000000..7a6eba63a5
--- /dev/null
+++ b/OvmfPkg/QemuVideoDxe/VbeShim.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+###
+# @file
+# Shell script to assemble and dump the fake Int10h handler from NASM source to
+# a C array.
+#
+# Copyright (C) 2014, Red Hat, Inc.
+# Copyright (c) 2013 - 2014, 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 which accompanies this
+# distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+# WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+###
+
+set -e -u
+
+STEM=$(dirname -- "$0")/$(basename -- "$0" .sh)
+
+#
+# Install exit handler -- remove temporary files.
+#
+exit_handler()
+{
+ rm -f -- "$STEM".bin "$STEM".disasm "$STEM".offsets "$STEM".insns \
+ "$STEM".bytes
+}
+trap exit_handler EXIT
+
+#
+# Assemble the source file.
+#
+nasm -o "$STEM".bin -- "$STEM".asm
+
+#
+# Disassemble it, in order to get a binary dump associated with the source.
+# (ndisasm doesn't recognize the "--" end-of-options delimiter.)
+#
+ndisasm "$STEM".bin >"$STEM".disasm
+
+#
+# Create three files, each with one column of the disassembly.
+#
+# The first column contains the offsets, and it starts the comment.
+#
+cut -c 1-8 -- "$STEM".disasm \
+| sed -e 's,^, /* ,' >"$STEM".offsets
+
+#
+# The second column contains the assembly-language instructions, and it closes
+# the comment. We first pad it to 30 characters.
+#
+cut -c 29- -- "$STEM".disasm \
+| sed -e 's,$, ,' \
+ -e 's,^\(.\{30\}\).*$,\1 */,' >"$STEM".insns
+
+#
+# The third column contains the bytes corresponding to the instruction,
+# represented as C integer constants. First strip trailing whitespace from the
+# middle column of the input disassembly, then process pairs of nibbles.
+#
+cut -c 11-28 -- "$STEM".disasm \
+| sed -e 's, \+$,,' -e 's/\(..\)/ 0x\1,/g' >"$STEM".bytes
+
+#
+# Write the output file, recombining the columns. The output should have CRLF
+# line endings.
+#
+{
+ printf '//\n'
+ printf '// THIS FILE WAS GENERATED BY "%s". DO NOT EDIT.\n' \
+ "$(basename -- "$0")"
+ printf '//\n'
+ printf '#ifndef _VBE_SHIM_H_\n'
+ printf '#define _VBE_SHIM_H_\n'
+ printf 'STATIC CONST UINT8 mVbeShim[] = {\n'
+ paste -d ' ' -- "$STEM".offsets "$STEM".insns "$STEM".bytes
+ printf '};\n'
+ printf '#endif\n'
+} \
+| unix2dos >"$STEM".h
diff --git a/OvmfPkg/README b/OvmfPkg/README
index be798063a0..3243dc685c 100644
--- a/OvmfPkg/README
+++ b/OvmfPkg/README
@@ -17,6 +17,7 @@ Current capabilities:
- Optional NIC support. Requires QEMU (0.12.2 or later)
* UEFI Linux boots
* UEFI Windows 8 boots
+* UEFI Windows 7 & Windows 2008 Server boot (see important notes below!)
=== FUTURE PLANS ===
@@ -243,3 +244,13 @@ selectively. For example:
GCC:*_*_*_CC_FLAGS = -UMDEPKG_NDEBUG
}
+=== UEFI Windows 7 & Windows 2008 Server ===
+
+* One of the '-vga std' and '-vga qxl' QEMU options should be used.
+* Only one video mode, 1024x768x32, is supported at OS runtime.
+* The '-vga qxl' QEMU option is recommended. After booting the installed
+ guest OS, select the video card in Device Manager, and upgrade its driver
+ to the QXL XDDM one. Download location:
+ <http://www.spice-space.org/download.html>, Guest | Windows binaries.
+ This enables further resolutions at OS runtime, and provides S3
+ (suspend/resume) capability.
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 15:24:34 +0000