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| author | Phil Dennis-Jordan <phil@philjordan.eu> | 2017-04-07 18:25:58 +1200 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2017-04-07 12:34:11 +0200 |
| commit | c137d95081690d4877fbeb5f1856972e84ac32f2 (patch) | |
| tree | 7278e1a3e12ba42bec702a417c81c23a2bd22aaa /OvmfPkg/QemuVideoDxe/Qemu.h | |
| parent | 05a5379458725234de8a05780fcb5da2c12680e4 (diff) | |
| download | edk2-c137d95081690d4877fbeb5f1856972e84ac32f2.tar.gz edk2-c137d95081690d4877fbeb5f1856972e84ac32f2.tar.bz2 edk2-c137d95081690d4877fbeb5f1856972e84ac32f2.zip | |
OvmfPkg/QemuVideoDxe: VMWare SVGA device support
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>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Diffstat (limited to 'OvmfPkg/QemuVideoDxe/Qemu.h')
| -rw-r--r-- | OvmfPkg/QemuVideoDxe/Qemu.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/OvmfPkg/QemuVideoDxe/Qemu.h b/OvmfPkg/QemuVideoDxe/Qemu.h index 2ce37defc5..7fbb25b3ef 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
|