From nobody Sat Nov 2 12:15:49 2024 Delivered-To: importer@patchew.org Received-SPF: none (zoho.com: 198.145.21.10 is neither permitted nor denied by domain of lists.01.org) client-ip=198.145.21.10; envelope-from=edk2-devel-bounces@lists.01.org; helo=ml01.01.org; Authentication-Results: mx.zoho.com; dkim=fail spf=none (zoho.com: 198.145.21.10 is neither permitted nor denied by domain of lists.01.org) smtp.mailfrom=edk2-devel-bounces@lists.01.org; Return-Path: Received: from ml01.01.org (ml01.01.org [198.145.21.10]) by mx.zohomail.com with SMTPS id 1491396940438514.1051741103184; Wed, 5 Apr 2017 05:55:40 -0700 (PDT) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 5A15A20080920; Wed, 5 Apr 2017 05:55:39 -0700 (PDT) Received: from mail-pg0-x241.google.com (mail-pg0-x241.google.com [IPv6:2607:f8b0:400e:c05::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 373A520080917 for ; Wed, 5 Apr 2017 05:55:38 -0700 (PDT) Received: by mail-pg0-x241.google.com with SMTP id o123so1918229pga.1 for ; Wed, 05 Apr 2017 05:55:38 -0700 (PDT) Received: from localhost.localdomain ([210.246.60.121]) by smtp.gmail.com with ESMTPSA id r66sm37609345pfi.49.2017.04.05.05.55.35 (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 05 Apr 2017 05:55:37 -0700 (PDT) X-Original-To: edk2-devel@lists.01.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=philjordan-eu.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=WZN78s381sX8K0x+F4C+8/9E1udyCP9vg7Gp8MXxdpc=; b=Va2HkfTBO98SZrx+ffpxUltnFaz6lmlQmWq7oqR1p44+u9urzV+rToORwRj4E3TMWL 41ECeD+EgdJZEidWqj0IA2bT72d6nRWrcbgl8N1t25Tu3XsMiK2k26+vpJlE4MCvrrn+ mBaYf+u6k7cnR7ODXr2XNyNy6GdqGyk6o0IiHMBaGw6P0IHed7zZjrHYstNc4VVTanTG bUZbndNjk8/2HzZpRB/PTI5b5cGB5k8XZZ+dLcZCWxnQiaoiI/WHFiSksVjFzH+5csE3 uOe/fsMidc/aokZmsWd/L2FbUf/HPCSxabAfjRr0ZFdcQKh6MMNepzKn/6MS6iwwvKbQ XK+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=WZN78s381sX8K0x+F4C+8/9E1udyCP9vg7Gp8MXxdpc=; b=Hrc+wtSo7+nCBDyQn4og97vpO6c0SlGrkE43I+plx6xYMGKdA1IR+YwDNgmqJUtVR/ C+sxaIiONiFM83BX0Rau2uUJEbWVywRovOG3l9iYQTjlO5rJwX362D6hhjiYPUt2iSou jlDICP+wdHa82TnZwfqVSgKLmAMoTFvjxC5pXe239soJr4sOa8eqQWXd2giHBMQvoULs 2PjQK8Rqw+osoXfzhj0wGGdxBH27V7JTeZNS3JFD8FaJ2Zy5/6Mt1dMiUHts69QHlwm9 aD18kLtkZQvpF52h3yH2ul15cBtOj3syW+FoekRpWhMRa8CT7XQEosEkOKmrj0Zq6E6S yJDg== X-Gm-Message-State: AFeK/H1CA3MdcnQqKrc0LjesYEd15zQ7B6HYu13+8YpEopOgoc3baDfvBIHyaW1qHlwGBA== X-Received: by 10.99.168.5 with SMTP id o5mr29924541pgf.19.1491396937751; Wed, 05 Apr 2017 05:55:37 -0700 (PDT) From: Phil Dennis-Jordan To: edk2-devel@lists.01.org Date: Thu, 6 Apr 2017 00:55:16 +1200 Message-Id: <1491396916-53170-4-git-send-email-lists@philjordan.eu> X-Mailer: git-send-email 2.3.2 (Apple Git-55) In-Reply-To: <1491396916-53170-1-git-send-email-lists@philjordan.eu> References: <1491396916-53170-1-git-send-email-lists@philjordan.eu> Subject: [edk2] [PATCH v4 3/3] OvmfPkg/QemuVideoDxe: VMWare SVGA device support X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jordan Justen , Phil Dennis-Jordan , Laszlo Ersek MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Errors-To: edk2-devel-bounces@lists.01.org Sender: "edk2-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_4 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Phil Dennis-Jordan 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 Cc: Laszlo Ersek Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Phil Dennis-Jordan Reviewed-by: Laszlo Ersek --- Notes: v2: - Unaligned I/O helper functions moved to separate commit [Laszlo] - Multi-line function call whitespace fixes. =20 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. [La= szlo] - 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. =20 v4: - Simplified mode info pixel mask calculation & PCI BAR OOB check. [Las= zlo] - Replaced struct assignment with CopyMem. [Laszlo] - Whitespace & comment typo fixes. [Laszlo] OvmfPkg/QemuVideoDxe/Qemu.h | 29 ++++ OvmfPkg/QemuVideoDxe/Driver.c | 128 +++++++++++++++- OvmfPkg/QemuVideoDxe/Gop.c | 61 +++++++- OvmfPkg/QemuVideoDxe/Initialize.c | 161 ++++++++++++++++++++ 4 files changed, 372 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; =20 typedef struct { @@ -115,10 +116,13 @@ typedef struct { // UINTN MaxMode; QEMU_VIDEO_MODE_DATA *ModeData; + EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *VmwareSvgaModeInfo; =20 QEMU_VIDEO_VARIANT Variant; FRAME_BUFFER_CONFIGURE *FrameBufferBltConfigure; UINTN FrameBufferBltConfigureSize; + UINT8 FrameBufferVramBarIndex; + UINT16 VmwareSvgaBasePort; } QEMU_VIDEO_PRIVATE_DATA; =20 /// @@ -502,9 +506,34 @@ QemuVideoBochsModeSetup ( BOOLEAN IsQxl ); =20 +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..2ed1506a1381 100644 --- a/OvmfPkg/QemuVideoDxe/Driver.c +++ b/OvmfPkg/QemuVideoDxe/Driver.c @@ -14,8 +14,10 @@ =20 **/ =20 -#include "Qemu.h" +#include #include +#include "Qemu.h" +#include "UnalignedIoInternal.h" =20 EFI_DRIVER_BINDING_PROTOCOL gQemuVideoDriverBinding =3D { QemuVideoControllerDriverSupported, @@ -58,6 +60,11 @@ QEMU_VIDEO_CARD gQemuVideoCardList[] =3D { 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 =3D Card->Variant; + Private->FrameBufferVramBarIndex =3D PCI_BAR_IDX0; =20 // // IsQxl is based on the detected Card->Variant, which at a later point = might @@ -317,6 +325,58 @@ QemuVideoControllerDriverStart ( } =20 // + // Check if accessing Vmware SVGA interface works + // + if (Private->Variant =3D=3D QEMU_VIDEO_VMWARE_SVGA) { + EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *IoDesc; + UINT32 TargetId; + UINT32 SvgaIdRead; + + IoDesc =3D NULL; + Status =3D Private->PciIo->GetBarAttributes ( + Private->PciIo, + PCI_BAR_IDX0, + NULL, + (VOID**) &IoDesc + ); + if (EFI_ERROR (Status) || + IoDesc->ResType !=3D ACPI_ADDRESS_SPACE_TYPE_IO || + IoDesc->AddrRangeMin > MAX_UINT16 + 1 - (VMWARE_SVGA_VALUE_PORT + = 4)) { + if (IoDesc !=3D NULL) { + FreePool (IoDesc); + } + Status =3D EFI_DEVICE_ERROR; + goto RestoreAttributes; + } + Private->VmwareSvgaBasePort =3D (UINT16) IoDesc->AddrRangeMin; + FreePool (IoDesc); + + TargetId =3D VMWARE_SVGA_ID_2; + while (TRUE) { + VmwareSvgaWrite (Private, VmwareSvgaRegId, TargetId); + SvgaIdRead =3D VmwareSvgaRead (Private, VmwareSvgaRegId); + if ((SvgaIdRead =3D=3D TargetId) || (TargetId <=3D VMWARE_SVGA_ID_0)= ) { + break; + } + TargetId--; + } + + if (SvgaIdRead !=3D TargetId) { + DEBUG (( + DEBUG_ERROR, + "QemuVideo: QEMU_VIDEO_VMWARE_SVGA ID mismatch " + "(got 0x%x, base address 0x%x)\n", + SvgaIdRead, + Private->VmwareSvgaBasePort + )); + Status =3D EFI_DEVICE_ERROR; + goto RestoreAttributes; + } + + Private->FrameBufferVramBarIndex =3D PCI_BAR_IDX1; + } + + // // Get ParentDevicePath // Status =3D gBS->HandleProtocol ( @@ -371,6 +431,9 @@ QemuVideoControllerDriverStart ( case QEMU_VIDEO_BOCHS: Status =3D QemuVideoBochsModeSetup (Private, IsQxl); break; + case QEMU_VIDEO_VMWARE_SVGA: + Status =3D QemuVideoVmwareSvgaModeSetup (Private); + break; default: ASSERT (FALSE); Status =3D EFI_DEVICE_ERROR; @@ -750,7 +813,7 @@ ClearScreen ( Private->PciIo->Mem.Write ( Private->PciIo, EfiPciIoWidthFillUint32, - 0, + Private->FrameBufferVramBarIndex, 0, 0x400000 >> 2, &Color @@ -888,6 +951,38 @@ BochsRead ( } =20 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 +1036,35 @@ InitializeBochsGraphicsMode ( ClearScreen (Private); } =20 +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 =3D VmwareSvgaRead ( + Private, + VmwareSvgaRegCapabilities + ); + if ((Capabilities & VMWARE_SVGA_CAP_8BIT_EMULATION) !=3D 0) { + VmwareSvgaWrite ( + Private, + VmwareSvgaRegBitsPerPixel, + ModeData->ColorDepth + ); + } + + VmwareSvgaWrite (Private, VmwareSvgaRegEnable, 1); + + SetDefaultPalette (Private); + ClearScreen (Private); +} + EFI_STATUS EFIAPI InitializeQemuVideo ( diff --git a/OvmfPkg/QemuVideoDxe/Gop.c b/OvmfPkg/QemuVideoDxe/Gop.c index 359e9217d3d1..512fd27acbda 100644 --- a/OvmfPkg/QemuVideoDxe/Gop.c +++ b/OvmfPkg/QemuVideoDxe/Gop.c @@ -13,6 +13,7 @@ =20 **/ =20 +#include #include "Qemu.h" =20 STATIC @@ -75,6 +76,42 @@ QemuVideoCompleteModeData ( return EFI_SUCCESS; } =20 +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, BytesPerPi= xel; + + Info =3D Mode->Info; + CopyMem (Info, &Private->VmwareSvgaModeInfo[Mode->Mode], sizeof (*Info)); + BytesPerPixel =3D Private->ModeData[Mode->Mode].ColorDepth / 8; + BytesPerLine =3D Info->PixelsPerScanLine * BytesPerPixel; + + FbOffset =3D VmwareSvgaRead (Private, VmwareSvgaRegFbOffset); + + Status =3D Private->PciIo->GetBarAttributes ( + Private->PciIo, + PCI_BAR_IDX1, + NULL, + (VOID**) &FrameBufDesc + ); + if (EFI_ERROR (Status)) { + return EFI_DEVICE_ERROR; + } + + Mode->FrameBufferBase =3D FrameBufDesc->AddrRangeMin + FbOffset; + Mode->FrameBufferSize =3D BytesPerLine * Info->VerticalResolution; + + FreePool (FrameBufDesc); + return Status; +} + =20 // // Graphics Output Protocol Member Functions @@ -124,10 +161,14 @@ Routine Description: =20 *SizeOfInfo =3D sizeof (EFI_GRAPHICS_OUTPUT_MODE_INFORMATION); =20 - ModeData =3D &Private->ModeData[ModeNumber]; - (*Info)->HorizontalResolution =3D ModeData->HorizontalResolution; - (*Info)->VerticalResolution =3D ModeData->VerticalResolution; - QemuVideoCompleteModeInfo (ModeData, *Info); + if (Private->Variant =3D=3D QEMU_VIDEO_VMWARE_SVGA) { + CopyMem (*Info, &Private->VmwareSvgaModeInfo[ModeNumber], sizeof (**In= fo)); + } else { + ModeData =3D &Private->ModeData[ModeNumber]; + (*Info)->HorizontalResolution =3D ModeData->HorizontalResolution; + (*Info)->VerticalResolution =3D ModeData->VerticalResolution; + QemuVideoCompleteModeInfo (ModeData, *Info); + } =20 return EFI_SUCCESS; } @@ -176,6 +217,12 @@ Routine Description: case QEMU_VIDEO_BOCHS: InitializeBochsGraphicsMode (Private, &QemuVideoBochsModes[ModeData->I= nternalModeIndex]); 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 =3D ModeData->VerticalResolution; This->Mode->SizeOfInfo =3D sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION); =20 - QemuVideoCompleteModeData (Private, This->Mode); + if (Private->Variant =3D=3D QEMU_VIDEO_VMWARE_SVGA) { + QemuVideoVmwareSvgaCompleteModeData (Private, This->Mode); + } else { + QemuVideoCompleteModeData (Private, This->Mode); + } =20 // // Re-initialize the frame buffer configure when mode changes. diff --git a/OvmfPkg/QemuVideoDxe/Initialize.c b/OvmfPkg/QemuVideoDxe/Initi= alize.c index d5d8cfef9661..849186a6f05d 100644 --- a/OvmfPkg/QemuVideoDxe/Initialize.c +++ b/OvmfPkg/QemuVideoDxe/Initialize.c @@ -13,6 +13,7 @@ =20 **/ =20 +#include #include "Qemu.h" =20 =20 @@ -346,3 +347,163 @@ QemuVideoBochsModeSetup ( return EFI_SUCCESS; } =20 +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 =3D + AllocatePool (sizeof (Private->ModeData[0]) * QEMU_VIDEO_BOCHS_MODE_CO= UNT); + if (Private->ModeData =3D=3D NULL) { + Status =3D EFI_OUT_OF_RESOURCES; + goto ModeDataAllocError; + } + + Private->VmwareSvgaModeInfo =3D + AllocatePool ( + sizeof (Private->VmwareSvgaModeInfo[0]) * QEMU_VIDEO_BOCHS_MODE_COUNT + ); + if (Private->VmwareSvgaModeInfo =3D=3D NULL) { + Status =3D EFI_OUT_OF_RESOURCES; + goto ModeInfoAllocError; + } + + FbSize =3D VmwareSvgaRead (Private, VmwareSvgaRegFbSize); + MaxWidth =3D VmwareSvgaRead (Private, VmwareSvgaRegMaxWidth); + MaxHeight =3D VmwareSvgaRead (Private, VmwareSvgaRegMaxHeight); + Capabilities =3D VmwareSvgaRead (Private, VmwareSvgaRegCapabilities); + if ((Capabilities & VMWARE_SVGA_CAP_8BIT_EMULATION) !=3D 0) { + BitsPerPixel =3D VmwareSvgaRead ( + Private, + VmwareSvgaRegHostBitsPerPixel + ); + VmwareSvgaWrite ( + Private, + VmwareSvgaRegBitsPerPixel, + BitsPerPixel + ); + } else { + BitsPerPixel =3D VmwareSvgaRead ( + Private, + VmwareSvgaRegBitsPerPixel + ); + } + + if (FbSize =3D=3D 0 || + MaxWidth =3D=3D 0 || + MaxHeight =3D=3D 0 || + BitsPerPixel =3D=3D 0 || + BitsPerPixel % 8 !=3D 0) { + Status =3D EFI_DEVICE_ERROR; + goto Rollback; + } + + ModeData =3D Private->ModeData; + ModeInfo =3D Private->VmwareSvgaModeInfo; + VideoMode =3D &QemuVideoBochsModes[0]; + for (Index =3D 0; Index < QEMU_VIDEO_BOCHS_MODE_COUNT; Index++) { + UINTN RequiredFbSize; + + RequiredFbSize =3D (UINTN) VideoMode->Width * VideoMode->Height * + (BitsPerPixel / 8); + if (RequiredFbSize <=3D FbSize && + VideoMode->Width <=3D MaxWidth && + VideoMode->Height <=3D MaxHeight) { + UINT32 BytesPerLine; + UINT32 RedMask, GreenMask, BlueMask, PixelMask; + + VmwareSvgaWrite ( + Private, + VmwareSvgaRegWidth, + VideoMode->Width + ); + VmwareSvgaWrite ( + Private, + VmwareSvgaRegHeight, + VideoMode->Height + ); + BytesPerLine =3D VmwareSvgaRead ( + Private, + VmwareSvgaRegBytesPerLine + ); + + ModeData->InternalModeIndex =3D Index; + ModeData->HorizontalResolution =3D VideoMode->Width; + ModeData->VerticalResolution =3D VideoMode->Height; + ModeData->ColorDepth =3D BitsPerPixel; + + // + // Setting VmwareSvgaRegWidth/VmwareSvgaRegHeight actually changes + // the device's display mode, so we save all properties of each mode= up + // front to avoid inadvertent mode changes later. + // + ModeInfo->Version =3D 0; + ModeInfo->HorizontalResolution =3D ModeData->HorizontalResolution; + ModeInfo->VerticalResolution =3D ModeData->VerticalResolution; + + ModeInfo->PixelFormat =3D PixelBitMask; + + RedMask =3D VmwareSvgaRead (Private, VmwareSvgaRegRedMask); + ModeInfo->PixelInformation.RedMask =3D RedMask; + + GreenMask =3D VmwareSvgaRead (Private, VmwareSvgaRegGreenMask); + ModeInfo->PixelInformation.GreenMask =3D GreenMask; + + BlueMask =3D VmwareSvgaRead (Private, VmwareSvgaRegBlueMask); + ModeInfo->PixelInformation.BlueMask =3D BlueMask; + + // + // Reserved mask is whatever bits in the pixel not containing RGB da= ta, + // so start with binary 1s for every bit in the pixel, then mask off + // bits already used for RGB. Special case 32 to avoid undefined + // behaviour in the shift. + // + if (BitsPerPixel =3D=3D 32) { + if (BlueMask =3D=3D 0xff && GreenMask =3D=3D 0xff00 && RedMask =3D= =3D 0xff0000) { + ModeInfo->PixelFormat =3D PixelBlueGreenRedReserved8BitPerColor; + } else if (BlueMask =3D=3D 0xff0000 && + GreenMask =3D=3D 0xff00 && + RedMask =3D=3D 0xff) { + ModeInfo->PixelFormat =3D PixelRedGreenBlueReserved8BitPerColor; + } + PixelMask =3D MAX_UINT32; + } else { + PixelMask =3D (1u << BitsPerPixel) - 1; + } + ModeInfo->PixelInformation.ReservedMask =3D + PixelMask & ~(RedMask | GreenMask | BlueMask); + + BytesPerLine =3D VmwareSvgaRead (Private, VmwareSvgaRegBytesPerLine); + ModeInfo->PixelsPerScanLine =3D BytesPerLine / (BitsPerPixel / 8); + + ModeData++; + ModeInfo++; + } + VideoMode++; + } + Private->MaxMode =3D ModeData - Private->ModeData; + return EFI_SUCCESS; + +Rollback: + FreePool (Private->VmwareSvgaModeInfo); + Private->VmwareSvgaModeInfo =3D NULL; + +ModeInfoAllocError: + FreePool (Private->ModeData); + Private->ModeData =3D NULL; + +ModeDataAllocError: + return Status; +} --=20 2.3.2 (Apple Git-55) _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel