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From: Phil Dennis-Jordan <lists@philjordan.eu>
To: edk2-devel@lists.01.org
Cc: Phil Dennis-Jordan <phil@philjordan.eu>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Laszlo Ersek <lersek@redhat.com>
Subject: [PATCH v3 3/3] OvmfPkg/QemuVideoDxe: VMWare SVGA device support
Date: Wed,  5 Apr 2017 21:58:00 +1200	[thread overview]
Message-ID: <1491386280-50077-4-git-send-email-lists@philjordan.eu> (raw)
In-Reply-To: <1491386280-50077-1-git-send-email-lists@philjordan.eu>

From: Phil Dennis-Jordan <phil@philjordan.eu>

In addition to the QXL, Cirrus, etc. VGA adapters, Qemu also implements
a basic version of VMWare's SVGA display device. Drivers for this
device exist for some guest OSes which do not support Qemu's other
display adapters, so supporting it in OVMF is useful in conjunction
with those OSes.

This change adds support for the SVGA device's framebuffer to
QemuVideoDxe's graphics output protocol implementation, based on
VMWare's documentation. The most basic initialisation, framebuffer
layout query, and mode setting operations are implemented.

The device relies on port-based 32-bit I/O, unfortunately on misaligned
addresses. This limits the driver's support to the x86 family of
platforms.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
---

Notes:
    v2:
    - Unaligned I/O helper functions moved to separate commit [Laszlo]
    - Multi-line function call whitespace fixes.
    
    v3:
    - Dropped the "2" from "SVGA2" where appropriate. [Jordan, Laszlo]
    - Renamed various struct fields and functions with consistent prefixes [Laszlo]
    - #include orders fixed [Laszlo]
    - Renamedi/moved lots of local variables to comply with convention. [Laszlo]
    - Added error checking to PCI BAR queries. [Laszlo]
    - Moved some function definitions around for better grouping. [Laszlo]
    - Fixed ClearScreen() to use the correct VRAM BAR. [Laszlo]
    - Changed modelist initialisation to fetch all mode data on startup, so mode
      queries can return everything including channel masks without hitting the
      device. Mask calculations hopefully make more sense now. [Laszlo]
    - Whitespace fixes. [Laszlo]
    - Fixed a memory leak in BAR query.

 OvmfPkg/QemuVideoDxe/Qemu.h       |  29 ++++
 OvmfPkg/QemuVideoDxe/Driver.c     | 127 ++++++++++++++-
 OvmfPkg/QemuVideoDxe/Gop.c        |  61 +++++++-
 OvmfPkg/QemuVideoDxe/Initialize.c | 161 ++++++++++++++++++++
 4 files changed, 371 insertions(+), 7 deletions(-)

diff --git a/OvmfPkg/QemuVideoDxe/Qemu.h b/OvmfPkg/QemuVideoDxe/Qemu.h
index 2ce37defc5b8..7fbb25b3efd3 100644
--- a/OvmfPkg/QemuVideoDxe/Qemu.h
+++ b/OvmfPkg/QemuVideoDxe/Qemu.h
@@ -92,6 +92,7 @@ typedef enum {
   QEMU_VIDEO_CIRRUS_5446,
   QEMU_VIDEO_BOCHS,
   QEMU_VIDEO_BOCHS_MMIO,
+  QEMU_VIDEO_VMWARE_SVGA,
 } QEMU_VIDEO_VARIANT;
 
 typedef struct {
@@ -115,10 +116,13 @@ typedef struct {
   //
   UINTN                                 MaxMode;
   QEMU_VIDEO_MODE_DATA                  *ModeData;
+  EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *VmwareSvgaModeInfo;
 
   QEMU_VIDEO_VARIANT                    Variant;
   FRAME_BUFFER_CONFIGURE                *FrameBufferBltConfigure;
   UINTN                                 FrameBufferBltConfigureSize;
+  UINT8                                 FrameBufferVramBarIndex;
+  UINT16                                VmwareSvgaBasePort;
 } QEMU_VIDEO_PRIVATE_DATA;
 
 ///
@@ -502,9 +506,34 @@ QemuVideoBochsModeSetup (
   BOOLEAN                  IsQxl
   );
 
+EFI_STATUS
+QemuVideoVmwareSvgaModeSetup (
+  QEMU_VIDEO_PRIVATE_DATA *Private
+  );
+
 VOID
 InstallVbeShim (
   IN CONST CHAR16         *CardName,
   IN EFI_PHYSICAL_ADDRESS FrameBufferBase
   );
+
+VOID
+VmwareSvgaWrite (
+  QEMU_VIDEO_PRIVATE_DATA *Private,
+  UINT16                  Register,
+  UINT32                  Value
+  );
+
+UINT32
+VmwareSvgaRead (
+  QEMU_VIDEO_PRIVATE_DATA *Private,
+  UINT16                  Register
+  );
+
+VOID
+InitializeVmwareSvgaGraphicsMode (
+  QEMU_VIDEO_PRIVATE_DATA  *Private,
+  QEMU_VIDEO_BOCHS_MODES   *ModeData
+  );
+
 #endif
diff --git a/OvmfPkg/QemuVideoDxe/Driver.c b/OvmfPkg/QemuVideoDxe/Driver.c
index fc8025ec46de..79c430e920d7 100644
--- a/OvmfPkg/QemuVideoDxe/Driver.c
+++ b/OvmfPkg/QemuVideoDxe/Driver.c
@@ -14,8 +14,10 @@
 
 **/
 
-#include "Qemu.h"
+#include <IndustryStandard/VmwareSvga.h>
 #include <IndustryStandard/Acpi.h>
+#include "Qemu.h"
+#include "UnalignedIoInternal.h"
 
 EFI_DRIVER_BINDING_PROTOCOL gQemuVideoDriverBinding = {
   QemuVideoControllerDriverSupported,
@@ -58,6 +60,11 @@ QEMU_VIDEO_CARD gQemuVideoCardList[] = {
         QEMU_VIDEO_BOCHS_MMIO,
         L"QEMU VirtIO VGA"
     },{
+        VMWARE_PCI_VENDOR_ID_VMWARE,
+        VMWARE_PCI_DEVICE_ID_VMWARE_SVGA2,
+        QEMU_VIDEO_VMWARE_SVGA,
+        L"QEMU VMWare SVGA"
+    },{
         0 /* end of list */
     }
 };
@@ -242,6 +249,7 @@ QemuVideoControllerDriverStart (
     goto ClosePciIo;
   }
   Private->Variant = Card->Variant;
+  Private->FrameBufferVramBarIndex = PCI_BAR_IDX0;
 
   //
   // IsQxl is based on the detected Card->Variant, which at a later point might
@@ -317,6 +325,59 @@ QemuVideoControllerDriverStart (
   }
 
   //
+  // Check if accessing Vmware SVGA interface works
+  //
+  if (Private->Variant == QEMU_VIDEO_VMWARE_SVGA) {
+    EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *IoDesc;
+    UINT32                            TargetId;
+    UINT32                            SvgaIdRead;
+
+    IoDesc = NULL;
+    Status = Private->PciIo->GetBarAttributes (
+                               Private->PciIo,
+                               PCI_BAR_IDX0,
+                               NULL,
+                               (VOID**) &IoDesc
+                               );
+    if (EFI_ERROR(Status) ||
+        IoDesc->ResType != ACPI_ADDRESS_SPACE_TYPE_IO ||
+        IoDesc->AddrRangeMin >= MAX_UINT16 ||
+        IoDesc->AddrRangeMin + VMWARE_SVGA_VALUE_PORT >= MAX_UINT16) {
+      if (IoDesc != NULL) {
+        FreePool (IoDesc);
+      }
+      Status = EFI_DEVICE_ERROR;
+      goto RestoreAttributes;
+    }
+    Private->VmwareSvgaBasePort = (UINT16) IoDesc->AddrRangeMin;
+    FreePool (IoDesc);
+
+    TargetId = VMWARE_SVGA_ID_2;
+    while (TRUE) {
+      VmwareSvgaWrite (Private, VmwareSvgaRegId, TargetId);
+      SvgaIdRead = VmwareSvgaRead (Private, VmwareSvgaRegId);
+      if ((SvgaIdRead == TargetId) || (TargetId <= VMWARE_SVGA_ID_0)) {
+        break;
+      }
+      TargetId --;
+    }
+
+    if (SvgaIdRead != TargetId) {
+      DEBUG ((
+        DEBUG_ERROR,
+        "QemuVideo: QEMU_VIDEO_VMWARE_SVGA ID mismatch "
+        "(got 0x%x, base address 0x%x)\n",
+        SvgaIdRead,
+        Private->VmwareSvgaBasePort
+        ));
+      Status = EFI_DEVICE_ERROR;
+      goto RestoreAttributes;
+    }
+
+    Private->FrameBufferVramBarIndex = PCI_BAR_IDX1;
+  }
+
+  //
   // Get ParentDevicePath
   //
   Status = gBS->HandleProtocol (
@@ -371,6 +432,9 @@ QemuVideoControllerDriverStart (
   case QEMU_VIDEO_BOCHS:
     Status = QemuVideoBochsModeSetup (Private, IsQxl);
     break;
+  case QEMU_VIDEO_VMWARE_SVGA:
+    Status = QemuVideoVmwareSvgaModeSetup (Private);
+    break;
   default:
     ASSERT (FALSE);
     Status = EFI_DEVICE_ERROR;
@@ -750,7 +814,7 @@ ClearScreen (
   Private->PciIo->Mem.Write (
                         Private->PciIo,
                         EfiPciIoWidthFillUint32,
-                        0,
+                        Private->FrameBufferVramBarIndex,
                         0,
                         0x400000 >> 2,
                         &Color
@@ -888,6 +952,35 @@ BochsRead (
 }
 
 VOID
+VmwareSvgaWrite (
+  QEMU_VIDEO_PRIVATE_DATA   *Private,
+  UINT16                    Register,
+  UINT32                    Value
+  )
+{
+  UnalignedIoWrite32 (
+    Private->VmwareSvgaBasePort + VMWARE_SVGA_INDEX_PORT,
+    Register
+    );
+  UnalignedIoWrite32 (
+    Private->VmwareSvgaBasePort + VMWARE_SVGA_VALUE_PORT,
+    Value);
+}
+
+UINT32
+VmwareSvgaRead (
+  QEMU_VIDEO_PRIVATE_DATA   *Private,
+  UINT16                    Register
+  )
+{
+  UnalignedIoWrite32 (
+    Private->VmwareSvgaBasePort + VMWARE_SVGA_INDEX_PORT,
+    Register);
+  return UnalignedIoRead32 (
+           Private->VmwareSvgaBasePort + VMWARE_SVGA_VALUE_PORT);
+}
+
+VOID
 VgaOutb (
   QEMU_VIDEO_PRIVATE_DATA  *Private,
   UINTN                    Reg,
@@ -941,6 +1034,35 @@ InitializeBochsGraphicsMode (
   ClearScreen (Private);
 }
 
+VOID
+InitializeVmwareSvgaGraphicsMode (
+  QEMU_VIDEO_PRIVATE_DATA  *Private,
+  QEMU_VIDEO_BOCHS_MODES   *ModeData
+  )
+{
+  UINT32 Capabilities;
+
+  VmwareSvgaWrite (Private, VmwareSvgaRegWidth, ModeData->Width);
+  VmwareSvgaWrite (Private, VmwareSvgaRegHeight, ModeData->Height);
+
+  Capabilities = VmwareSvgaRead (
+                   Private,
+                   VmwareSvgaRegCapabilities
+                   );
+  if ((Capabilities & VMWARE_SVGA_CAP_8BIT_EMULATION) != 0) {
+    VmwareSvgaWrite (
+      Private,
+      VmwareSvgaRegBitsPerPixel,
+      ModeData->ColorDepth
+      );
+  }
+
+  VmwareSvgaWrite (Private, VmwareSvgaRegEnable, 1);
+
+  SetDefaultPalette (Private);
+  ClearScreen (Private);
+}
+
 EFI_STATUS
 EFIAPI
 InitializeQemuVideo (
@@ -975,3 +1097,4 @@ InitializeQemuVideo (
 
   return Status;
 }
+
diff --git a/OvmfPkg/QemuVideoDxe/Gop.c b/OvmfPkg/QemuVideoDxe/Gop.c
index 359e9217d3d1..934c9f39b459 100644
--- a/OvmfPkg/QemuVideoDxe/Gop.c
+++ b/OvmfPkg/QemuVideoDxe/Gop.c
@@ -13,6 +13,7 @@
 
 **/
 
+#include <IndustryStandard/VmwareSvga.h>
 #include "Qemu.h"
 
 STATIC
@@ -75,6 +76,42 @@ QemuVideoCompleteModeData (
   return EFI_SUCCESS;
 }
 
+STATIC
+EFI_STATUS
+QemuVideoVmwareSvgaCompleteModeData (
+  IN  QEMU_VIDEO_PRIVATE_DATA           *Private,
+  OUT EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE *Mode
+  )
+{
+  EFI_STATUS                            Status;
+  EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *Info;
+  EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR     *FrameBufDesc;
+  UINT32                                BytesPerLine, FbOffset, BytesPerPixel;
+
+  Info = Mode->Info;
+  CopyMem (Info, &Private->VmwareSvgaModeInfo[Mode->Mode], sizeof(*Info));
+  BytesPerPixel = Private->ModeData[Mode->Mode].ColorDepth / 8;
+  BytesPerLine = Info->PixelsPerScanLine * BytesPerPixel;
+
+  FbOffset = VmwareSvgaRead (Private, VmwareSvgaRegFbOffset);
+
+  Status = Private->PciIo->GetBarAttributes (
+                             Private->PciIo,
+                             PCI_BAR_IDX1,
+                             NULL,
+                             (VOID**) &FrameBufDesc
+                             );
+  if (EFI_ERROR(Status)) {
+    return EFI_DEVICE_ERROR;
+  }
+
+  Mode->FrameBufferBase = FrameBufDesc->AddrRangeMin + FbOffset;
+  Mode->FrameBufferSize = BytesPerLine * Info->VerticalResolution;
+
+  FreePool (FrameBufDesc);
+  return Status;
+}
+
 
 //
 // Graphics Output Protocol Member Functions
@@ -124,10 +161,14 @@ Routine Description:
 
   *SizeOfInfo = sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
 
-  ModeData = &Private->ModeData[ModeNumber];
-  (*Info)->HorizontalResolution = ModeData->HorizontalResolution;
-  (*Info)->VerticalResolution   = ModeData->VerticalResolution;
-  QemuVideoCompleteModeInfo (ModeData, *Info);
+  if (Private->Variant == QEMU_VIDEO_VMWARE_SVGA) {
+    **Info = Private->VmwareSvgaModeInfo[ModeNumber];
+  } else {
+    ModeData = &Private->ModeData[ModeNumber];
+    (*Info)->HorizontalResolution = ModeData->HorizontalResolution;
+    (*Info)->VerticalResolution   = ModeData->VerticalResolution;
+    QemuVideoCompleteModeInfo (ModeData, *Info);
+  }
 
   return EFI_SUCCESS;
 }
@@ -176,6 +217,12 @@ Routine Description:
   case QEMU_VIDEO_BOCHS:
     InitializeBochsGraphicsMode (Private, &QemuVideoBochsModes[ModeData->InternalModeIndex]);
     break;
+  case QEMU_VIDEO_VMWARE_SVGA:
+    InitializeVmwareSvgaGraphicsMode (
+      Private,
+      &QemuVideoBochsModes[ModeData->InternalModeIndex]
+      );
+    break;
   default:
     ASSERT (FALSE);
     return EFI_DEVICE_ERROR;
@@ -186,7 +233,11 @@ Routine Description:
   This->Mode->Info->VerticalResolution = ModeData->VerticalResolution;
   This->Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
 
-  QemuVideoCompleteModeData (Private, This->Mode);
+  if (Private->Variant == QEMU_VIDEO_VMWARE_SVGA) {
+    QemuVideoVmwareSvgaCompleteModeData (Private, This->Mode);
+  } else {
+    QemuVideoCompleteModeData (Private, This->Mode);
+  }
 
   //
   // Re-initialize the frame buffer configure when mode changes.
diff --git a/OvmfPkg/QemuVideoDxe/Initialize.c b/OvmfPkg/QemuVideoDxe/Initialize.c
index d5d8cfef9661..8c5c993c7d0e 100644
--- a/OvmfPkg/QemuVideoDxe/Initialize.c
+++ b/OvmfPkg/QemuVideoDxe/Initialize.c
@@ -13,6 +13,7 @@
 
 **/
 
+#include <IndustryStandard/VmwareSvga.h>
 #include "Qemu.h"
 
 
@@ -346,3 +347,163 @@ QemuVideoBochsModeSetup (
   return EFI_SUCCESS;
 }
 
+EFI_STATUS
+QemuVideoVmwareSvgaModeSetup (
+  QEMU_VIDEO_PRIVATE_DATA *Private
+  )
+{
+  EFI_STATUS                            Status;
+  UINT32                                FbSize;
+  UINT32                                MaxWidth, MaxHeight;
+  UINT32                                Capabilities;
+  UINT32                                BitsPerPixel;
+  UINT32                                Index;
+  QEMU_VIDEO_MODE_DATA                  *ModeData;
+  QEMU_VIDEO_BOCHS_MODES                *VideoMode;
+  EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *ModeInfo;
+
+  VmwareSvgaWrite (Private, VmwareSvgaRegEnable, 0);
+
+  Private->ModeData =
+    AllocatePool (sizeof (Private->ModeData[0]) * QEMU_VIDEO_BOCHS_MODE_COUNT);
+  if (Private->ModeData == NULL) {
+    Status = EFI_OUT_OF_RESOURCES;
+    goto ModeDataAllocError;
+  }
+
+  Private->VmwareSvgaModeInfo =
+    AllocatePool (
+      sizeof (Private->VmwareSvgaModeInfo[0]) * QEMU_VIDEO_BOCHS_MODE_COUNT
+      );
+  if (Private->VmwareSvgaModeInfo == NULL) {
+    Status = EFI_OUT_OF_RESOURCES;
+    goto ModeInfoAllocError;
+  }
+
+  FbSize =       VmwareSvgaRead (Private, VmwareSvgaRegFbSize);
+  MaxWidth =     VmwareSvgaRead (Private, VmwareSvgaRegMaxWidth);
+  MaxHeight =    VmwareSvgaRead (Private, VmwareSvgaRegMaxHeight);
+  Capabilities = VmwareSvgaRead (Private, VmwareSvgaRegCapabilities);
+  if ((Capabilities & VMWARE_SVGA_CAP_8BIT_EMULATION) != 0) {
+    BitsPerPixel = VmwareSvgaRead (
+                     Private,
+                     VmwareSvgaRegHostBitsPerPixel
+                     );
+    VmwareSvgaWrite (
+      Private,
+      VmwareSvgaRegBitsPerPixel,
+      BitsPerPixel
+      );
+  } else {
+    BitsPerPixel = VmwareSvgaRead (
+                     Private,
+                     VmwareSvgaRegBitsPerPixel
+                     );
+  }
+
+  if (FbSize == 0       ||
+      MaxWidth == 0     ||
+      MaxHeight == 0    ||
+      BitsPerPixel == 0 ||
+      BitsPerPixel % 8 != 0) {
+    Status = EFI_DEVICE_ERROR;
+    goto Rollback;
+  }
+
+  ModeData = Private->ModeData;
+  ModeInfo = Private->VmwareSvgaModeInfo;
+  VideoMode = &QemuVideoBochsModes[0];
+  for (Index = 0; Index < QEMU_VIDEO_BOCHS_MODE_COUNT; Index ++) {
+    UINTN RequiredFbSize;
+
+    RequiredFbSize = (UINTN) VideoMode->Width * VideoMode->Height *
+                     (BitsPerPixel / 8);
+    if (RequiredFbSize <= FbSize     &&
+        VideoMode->Width <= MaxWidth &&
+        VideoMode->Height <= MaxHeight) {
+      UINT32  BytesPerLine;
+      UINT32  RedMask, GreenMask, BlueMask, PixelMask;
+
+      VmwareSvgaWrite (
+        Private,
+        VmwareSvgaRegWidth,
+        VideoMode->Width
+        );
+      VmwareSvgaWrite (
+        Private,
+        VmwareSvgaRegHeight,
+        VideoMode->Height
+        );
+      BytesPerLine = VmwareSvgaRead (
+                       Private,
+                       VmwareSvgaRegBytesPerLine
+                       );
+
+      ModeData->InternalModeIndex    = Index;
+      ModeData->HorizontalResolution = VideoMode->Width;
+      ModeData->VerticalResolution   = VideoMode->Height;
+      ModeData->ColorDepth           = BitsPerPixel;
+
+      //
+      // Setting VmwareSvgaRegWidth/VmwareSvgaRegHeight actually changes
+      // the device's display mode, so we all properties of each mode up front
+      // to avoid inadvertent mode changes later.
+      //
+      ModeInfo->Version = 0;
+      ModeInfo->HorizontalResolution = ModeData->HorizontalResolution;
+      ModeInfo->VerticalResolution   = ModeData->VerticalResolution;
+
+      ModeInfo->PixelFormat = PixelBitMask;
+
+      RedMask   = VmwareSvgaRead (Private, VmwareSvgaRegRedMask);
+      ModeInfo->PixelInformation.RedMask = RedMask;
+
+      GreenMask = VmwareSvgaRead (Private, VmwareSvgaRegGreenMask);
+      ModeInfo->PixelInformation.GreenMask = GreenMask;
+
+      BlueMask  = VmwareSvgaRead (Private, VmwareSvgaRegBlueMask);
+      ModeInfo->PixelInformation.BlueMask = BlueMask;
+
+      BytesPerLine = VmwareSvgaRead (Private, VmwareSvgaRegBytesPerLine);
+
+      if (BitsPerPixel == 32) {
+        if (BlueMask == 0xff && GreenMask == 0xff00 && RedMask == 0xff0000) {
+          ModeInfo->PixelFormat = PixelBlueGreenRedReserved8BitPerColor;
+        } else if (BlueMask == 0xff0000 &&
+                   GreenMask == 0xff00 &&
+                   RedMask == 0xff) {
+          ModeInfo->PixelFormat = PixelRedGreenBlueReserved8BitPerColor;
+        }
+      }
+
+      //
+      // Reserved mask is whatever bits in the pixel are not used for RGB.
+      // PixelMask is as many binary 1s as BitsPerPixel, but shifting UINT32 by
+      // 32 is undefined, so work around that. BitsPerPixel isn't 0 so
+      // (BitsPerPixel - 1u) is ok.
+      //
+      PixelMask = ((0x1u << 1u) << (BitsPerPixel - 1u)) - 1u;
+      ModeInfo->PixelInformation.ReservedMask =
+        PixelMask & ~(RedMask | GreenMask | BlueMask);
+
+      ModeInfo->PixelsPerScanLine = BytesPerLine / (BitsPerPixel / 8);
+
+      ModeData ++;
+      ModeInfo ++;
+    }
+    VideoMode ++;
+  }
+  Private->MaxMode = ModeData - Private->ModeData;
+  return EFI_SUCCESS;
+
+Rollback:
+  FreePool(Private->VmwareSvgaModeInfo);
+  Private->VmwareSvgaModeInfo = NULL;
+
+ModeInfoAllocError:
+  FreePool(Private->ModeData);
+  Private->ModeData = NULL;
+
+ModeDataAllocError:
+  return Status;
+}
-- 
2.3.2 (Apple Git-55)



  parent reply	other threads:[~2017-04-05  9:58 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-05  9:57 [PATCH v3 0/3] OvmfPkg/QemuVideoDxe: Add VMWare SVGA framebuffer support Phil Dennis-Jordan
2017-04-05  9:57 ` [PATCH v3 1/3] OvmfPkg: VMWare SVGA display device register definitions Phil Dennis-Jordan
2017-04-05 10:05   ` Laszlo Ersek
2017-04-05  9:57 ` [PATCH v3 2/3] OvmfPkg/QemuVideoDxe: Helper functions for unaligned port I/O Phil Dennis-Jordan
2017-04-05 10:16   ` Laszlo Ersek
2017-04-05  9:58 ` Phil Dennis-Jordan [this message]
2017-04-05 11:41   ` [PATCH v3 3/3] OvmfPkg/QemuVideoDxe: VMWare SVGA device support Laszlo Ersek
2017-04-05 12:46     ` Phil Dennis-Jordan
     [not found]     ` <CAAibmn3sm+QGwp1QaBq+_m4UQy1L1rcG7Z3RRq=L4sY-1WmJyQ@mail.gmail.com>
2017-04-05 12:58       ` Laszlo Ersek

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