/* $Id: DevVGA-SVGA.h 95294 2022-06-15 17:27:40Z vboxsync $ */ /** @file * VMware SVGA device */ /* * Copyright (C) 2013-2022 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #ifndef VBOX_INCLUDED_SRC_Graphics_DevVGA_SVGA_h #define VBOX_INCLUDED_SRC_Graphics_DevVGA_SVGA_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #ifndef VBOX_WITH_VMSVGA # error "VBOX_WITH_VMSVGA is not defined" #endif #define VMSVGA_USE_EMT_HALT_CODE #include #include #include #include #ifdef VMSVGA_USE_EMT_HALT_CODE # include # include #endif #include #include /* * PCI device IDs. */ #ifndef PCI_VENDOR_ID_VMWARE # define PCI_VENDOR_ID_VMWARE 0x15AD #endif #ifndef PCI_DEVICE_ID_VMWARE_SVGA2 # define PCI_DEVICE_ID_VMWARE_SVGA2 0x0405 #endif /* For "svga_overlay.h" */ #ifndef TRUE # define TRUE 1 #endif #ifndef FALSE # define FALSE 0 #endif /* VMSVGA headers. */ #include "vmsvga_headers_begin.h" #pragma pack(1) /* VMSVGA structures are '__packed'. */ #include #include #include #include #include #pragma pack() #include "vmsvga_headers_end.h" /**@def FLOAT_FMT_STR * Format string bits to go with FLOAT_FMT_ARGS. */ #define FLOAT_FMT_STR "%s%u.%06u" /** @def FLOAT_FMT_ARGS * Format arguments for a float value, corresponding to FLOAT_FMT_STR. * @param r The floating point value to format. */ #define FLOAT_FMT_ARGS(r) (r) >= 0.0f ? "" : "-", (unsigned)RT_ABS(r) \ , (unsigned)(RT_ABS((r) - (float)(unsigned)(r)) * 1000000.0f) /* Deprecated commands. They are not included in the VMSVGA headers anymore. */ #define SVGA_CMD_RECT_FILL 2 #define SVGA_CMD_DISPLAY_CURSOR 20 #define SVGA_CMD_MOVE_CURSOR 21 /* * SVGA_CMD_RECT_FILL -- * * Fill a rectangular area in the the GFB, and copy the result * to any screens which intersect it. * * Deprecated? * * Availability: * SVGA_CAP_RECT_FILL */ typedef struct { uint32_t pixel; uint32_t destX; uint32_t destY; uint32_t width; uint32_t height; } SVGAFifoCmdRectFill; /* * SVGA_CMD_DISPLAY_CURSOR -- * * Turn the cursor on or off. * * Deprecated. * * Availability: * SVGA_CAP_CURSOR? */ typedef struct { uint32_t id; // Reserved, must be zero. uint32_t state; // 0=off } SVGAFifoCmdDisplayCursor; /* * SVGA_CMD_MOVE_CURSOR -- * * Set the cursor position. * * Deprecated. * * Availability: * SVGA_CAP_CURSOR? */ typedef struct { SVGASignedPoint pos; } SVGAFifoCmdMoveCursor; /** Default FIFO size. */ #define VMSVGA_FIFO_SIZE _2M /** The old FIFO size. */ #define VMSVGA_FIFO_SIZE_OLD _128K /** Default scratch region size. */ #define VMSVGA_SCRATCH_SIZE 0x100 /** Surface memory available to the guest. */ #define VMSVGA_SURFACE_SIZE (512*1024*1024) /** Maximum GMR pages. */ #define VMSVGA_MAX_GMR_PAGES 0x100000 /** Maximum nr of GMR ids. */ #define VMSVGA_MAX_GMR_IDS _8K /** Maximum number of GMR descriptors. */ #define VMSVGA_MAX_GMR_DESC_LOOP_COUNT VMSVGA_MAX_GMR_PAGES #define VMSVGA_VAL_UNINITIALIZED (unsigned)-1 /** For validating X and width values. * The code assumes it's at least an order of magnitude less than UINT32_MAX. */ #define VMSVGA_MAX_X _1M /** For validating Y and height values. * The code assumes it's at least an order of magnitude less than UINT32_MAX. */ #define VMSVGA_MAX_Y _1M /* u32ActionFlags */ #define VMSVGA_ACTION_CHANGEMODE_BIT 0 #define VMSVGA_ACTION_CHANGEMODE RT_BIT(VMSVGA_ACTION_CHANGEMODE_BIT) #ifdef DEBUG /* Enable to log FIFO register accesses. */ //# define DEBUG_FIFO_ACCESS /* Enable to log GMR page accesses. */ //# define DEBUG_GMR_ACCESS #endif #define VMSVGA_FIFO_EXTCMD_NONE 0 #define VMSVGA_FIFO_EXTCMD_TERMINATE 1 #define VMSVGA_FIFO_EXTCMD_SAVESTATE 2 #define VMSVGA_FIFO_EXTCMD_LOADSTATE 3 #define VMSVGA_FIFO_EXTCMD_RESET 4 #define VMSVGA_FIFO_EXTCMD_UPDATE_SURFACE_HEAP_BUFFERS 5 #define VMSVGA_FIFO_EXTCMD_POWEROFF 6 /** Size of the region to backup when switching into svga mode. */ #define VMSVGA_VGA_FB_BACKUP_SIZE _512K /** @def VMSVGA_WITH_VGA_FB_BACKUP * Enables correct VGA MMIO read/write handling when VMSVGA is enabled. It * is SLOW and probably not entirely right, but it helps with getting 3dmark * output and other stuff. */ #define VMSVGA_WITH_VGA_FB_BACKUP 1 /** @def VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3 * defined(VMSVGA_WITH_VGA_FB_BACKUP) && defined(IN_RING3) */ #if (defined(VMSVGA_WITH_VGA_FB_BACKUP) && defined(IN_RING3)) || defined(DOXYGEN_RUNNING) # define VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3 1 #else # undef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RING3 #endif /** @def VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ * defined(VMSVGA_WITH_VGA_FB_BACKUP) && !defined(IN_RING3) */ #if (defined(VMSVGA_WITH_VGA_FB_BACKUP) && !defined(IN_RING3)) || defined(DOXYGEN_RUNNING) # define VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ 1 #else # undef VMSVGA_WITH_VGA_FB_BACKUP_AND_IN_RZ #endif typedef struct { PSSMHANDLE pSSM; uint32_t uVersion; uint32_t uPass; } VMSVGA_STATE_LOAD; typedef VMSVGA_STATE_LOAD *PVMSVGA_STATE_LOAD; /** Host screen viewport. * (4th quadrant with negated Y values - usual Windows and X11 world view.) */ typedef struct VMSVGAVIEWPORT { uint32_t x; /**< x coordinate (left). */ uint32_t y; /**< y coordinate (top). */ uint32_t cx; /**< width. */ uint32_t cy; /**< height. */ /** Right side coordinate (exclusive). Same as x + cx. */ uint32_t xRight; /** First quadrant low y coordinate. * Same as y + cy - 1 in window coordinates. */ uint32_t yLowWC; /** First quadrant high y coordinate (exclusive) - yLowWC + cy. * Same as y - 1 in window coordinates. */ uint32_t yHighWC; /** Alignment padding. */ uint32_t uAlignment; } VMSVGAVIEWPORT; #ifdef VBOX_WITH_VMSVGA3D typedef struct VMSVGAHWSCREEN *PVMSVGAHWSCREEN; #endif /** * Screen object state. */ typedef struct VMSVGASCREENOBJECT { /** SVGA_SCREEN_* flags. */ uint32_t fuScreen; /** The screen object id. */ uint32_t idScreen; /** The screen dimensions. */ int32_t xOrigin; int32_t yOrigin; uint32_t cWidth; uint32_t cHeight; /** Offset of the screen buffer in the guest VRAM. */ uint32_t offVRAM; /** Scanline pitch. */ uint32_t cbPitch; /** Bits per pixel. */ uint32_t cBpp; /** The physical DPI that the guest expects for this screen. Zero, if the guest is not DPI aware. */ uint32_t cDpi; bool fDefined; bool fModified; void *pvScreenBitmap; #ifdef VBOX_WITH_VMSVGA3D /** Pointer to the HW accelerated (3D) screen data. */ R3PTRTYPE(PVMSVGAHWSCREEN) pHwScreen; #endif } VMSVGASCREENOBJECT; /** Pointer to the private VMSVGA ring-3 state structure. * @todo Still not entirely satisfired with the type name, but better than * the previous lower/upper case only distinction. */ typedef struct VMSVGAR3STATE *PVMSVGAR3STATE; /** Pointer to the private (implementation specific) VMSVGA3d state. */ typedef struct VMSVGA3DSTATE *PVMSVGA3DSTATE; /** * The VMSVGA device state. * * This instantatiated as VGASTATE::svga. */ typedef struct VMSVGAState { /** Guest physical address of the FIFO memory range. */ RTGCPHYS GCPhysFIFO; /** Size in bytes of the FIFO memory range. * This may be smaller than cbFIFOConfig after restoring an old VM state. */ uint32_t cbFIFO; /** The configured FIFO size. */ uint32_t cbFIFOConfig; /** SVGA id. */ uint32_t u32SVGAId; /** SVGA extensions enabled or not. */ uint32_t fEnabled; /** SVGA memory area configured status. */ uint32_t fConfigured; /** Device is busy handling FIFO requests (VMSVGA_BUSY_F_FIFO, * VMSVGA_BUSY_F_EMT_FORCE). */ uint32_t volatile fBusy; #define VMSVGA_BUSY_F_FIFO RT_BIT_32(0) /**< The normal true/false busy FIFO bit. */ #define VMSVGA_BUSY_F_EMT_FORCE RT_BIT_32(1) /**< Bit preventing race status flickering when EMT kicks the FIFO thread. */ /** Traces (dirty page detection) enabled or not. */ uint32_t fTraces; /** Guest OS identifier. */ uint32_t u32GuestId; /** Scratch region size (VMSVGAState::au32ScratchRegion). */ uint32_t cScratchRegion; /** Irq status. */ uint32_t u32IrqStatus; /** Irq mask. */ uint32_t u32IrqMask; /** Pitch lock. */ uint32_t u32PitchLock; /** Current GMR id. (SVGA_REG_GMR_ID) */ uint32_t u32CurrentGMRId; /** SVGA device capabilities. */ uint32_t u32DeviceCaps; uint32_t Padding0; /* Used to be I/O port base address. */ /** Port io index register. */ uint32_t u32IndexReg; /** FIFO request semaphore. */ SUPSEMEVENT hFIFORequestSem; /** The last seen SVGA_FIFO_CURSOR_COUNT value. * Used by the FIFO thread and its watchdog. */ uint32_t uLastCursorUpdateCount; /** Indicates that the FIFO thread is sleeping and might need waking up. */ bool volatile fFIFOThreadSleeping; /** The legacy GFB mode registers. If used, they correspond to screen 0. */ /** True when the guest modifies the GFB mode registers. */ bool fGFBRegisters; /** SVGA 3D overlay enabled or not. */ bool f3DOverlayEnabled; /** Indicates that the guest behaves incorrectly. */ bool volatile fBadGuest; bool afPadding[4]; uint32_t uWidth; uint32_t uHeight; uint32_t uBpp; uint32_t cbScanline; uint32_t uHostBpp; /** Maximum width supported. */ uint32_t u32MaxWidth; /** Maximum height supported. */ uint32_t u32MaxHeight; /** Viewport rectangle, i.e. what's currently visible of the target host * window. This is usually (0,0)(uWidth,uHeight), but if the window is * shrunk and scrolling applied, both the origin and size may differ. */ VMSVGAVIEWPORT viewport; /** Action flags */ uint32_t u32ActionFlags; /** SVGA 3d extensions enabled or not. */ bool f3DEnabled; /** VRAM page monitoring enabled or not. */ bool fVRAMTracking; /** External command to be executed in the FIFO thread. */ uint8_t volatile u8FIFOExtCommand; /** Set by vmsvgaR3RunExtCmdOnFifoThread when it temporarily resumes the FIFO * thread and does not want it do anything but the command. */ bool volatile fFifoExtCommandWakeup; #ifdef DEBUG_GMR_ACCESS /** GMR debug access handler type handle. */ PGMPHYSHANDLERTYPE hGmrAccessHandlerType; #endif #if defined(VMSVGA_USE_FIFO_ACCESS_HANDLER) || defined(DEBUG_FIFO_ACCESS) /** FIFO debug access handler type handle. */ PGMPHYSHANDLERTYPE hFifoAccessHandlerType; #endif /** Number of GMRs (VMSVGA_MAX_GMR_IDS, count of elements in VMSVGAR3STATE::paGMR array). */ uint32_t cGMR; uint32_t uScreenOffset; /* Used only for loading older saved states. */ /** Legacy cursor state. */ uint32_t uCursorX; uint32_t uCursorY; uint32_t uCursorID; uint32_t uCursorOn; /** Scratch array. * Putting this at the end since it's big it probably not . */ uint32_t au32ScratchRegion[VMSVGA_SCRATCH_SIZE]; /** Array of SVGA3D_DEVCAP values, which are accessed via SVGA_REG_DEV_CAP. */ uint32_t au32DevCaps[SVGA3D_DEVCAP_MAX]; /** Index written to the SVGA_REG_DEV_CAP register. */ uint32_t u32DevCapIndex; /** Low 32 bit of a command buffer address written to the SVGA_REG_COMMAND_LOW register. */ uint32_t u32RegCommandLow; /** High 32 bit of a command buffer address written to the SVGA_REG_COMMAND_HIGH register. */ uint32_t u32RegCommandHigh; STAMCOUNTER StatRegBitsPerPixelWr; STAMCOUNTER StatRegBusyWr; STAMCOUNTER StatRegCursorXWr; STAMCOUNTER StatRegCursorYWr; STAMCOUNTER StatRegCursorIdWr; STAMCOUNTER StatRegCursorOnWr; STAMCOUNTER StatRegDepthWr; STAMCOUNTER StatRegDisplayHeightWr; STAMCOUNTER StatRegDisplayIdWr; STAMCOUNTER StatRegDisplayIsPrimaryWr; STAMCOUNTER StatRegDisplayPositionXWr; STAMCOUNTER StatRegDisplayPositionYWr; STAMCOUNTER StatRegDisplayWidthWr; STAMCOUNTER StatRegEnableWr; STAMCOUNTER StatRegGmrIdWr; STAMCOUNTER StatRegGuestIdWr; STAMCOUNTER StatRegHeightWr; STAMCOUNTER StatRegIdWr; STAMCOUNTER StatRegIrqMaskWr; STAMCOUNTER StatRegNumDisplaysWr; STAMCOUNTER StatRegNumGuestDisplaysWr; STAMCOUNTER StatRegPaletteWr; STAMCOUNTER StatRegPitchLockWr; STAMCOUNTER StatRegPseudoColorWr; STAMCOUNTER StatRegReadOnlyWr; STAMCOUNTER StatRegScratchWr; STAMCOUNTER StatRegSyncWr; STAMCOUNTER StatRegTopWr; STAMCOUNTER StatRegTracesWr; STAMCOUNTER StatRegUnknownWr; STAMCOUNTER StatRegWidthWr; STAMCOUNTER StatRegCommandLowWr; STAMCOUNTER StatRegCommandHighWr; STAMCOUNTER StatRegDevCapWr; STAMCOUNTER StatRegCmdPrependLowWr; STAMCOUNTER StatRegCmdPrependHighWr; STAMCOUNTER StatRegBitsPerPixelRd; STAMCOUNTER StatRegBlueMaskRd; STAMCOUNTER StatRegBusyRd; STAMCOUNTER StatRegBytesPerLineRd; STAMCOUNTER StatRegCapabilitesRd; STAMCOUNTER StatRegConfigDoneRd; STAMCOUNTER StatRegCursorXRd; STAMCOUNTER StatRegCursorYRd; STAMCOUNTER StatRegCursorIdRd; STAMCOUNTER StatRegCursorOnRd; STAMCOUNTER StatRegDepthRd; STAMCOUNTER StatRegDisplayHeightRd; STAMCOUNTER StatRegDisplayIdRd; STAMCOUNTER StatRegDisplayIsPrimaryRd; STAMCOUNTER StatRegDisplayPositionXRd; STAMCOUNTER StatRegDisplayPositionYRd; STAMCOUNTER StatRegDisplayWidthRd; STAMCOUNTER StatRegEnableRd; STAMCOUNTER StatRegFbOffsetRd; STAMCOUNTER StatRegFbSizeRd; STAMCOUNTER StatRegFbStartRd; STAMCOUNTER StatRegGmrIdRd; STAMCOUNTER StatRegGmrMaxDescriptorLengthRd; STAMCOUNTER StatRegGmrMaxIdsRd; STAMCOUNTER StatRegGmrsMaxPagesRd; STAMCOUNTER StatRegGreenMaskRd; STAMCOUNTER StatRegGuestIdRd; STAMCOUNTER StatRegHeightRd; STAMCOUNTER StatRegHostBitsPerPixelRd; STAMCOUNTER StatRegIdRd; STAMCOUNTER StatRegIrqMaskRd; STAMCOUNTER StatRegMaxHeightRd; STAMCOUNTER StatRegMaxWidthRd; STAMCOUNTER StatRegMemorySizeRd; STAMCOUNTER StatRegMemRegsRd; STAMCOUNTER StatRegMemSizeRd; STAMCOUNTER StatRegMemStartRd; STAMCOUNTER StatRegNumDisplaysRd; STAMCOUNTER StatRegNumGuestDisplaysRd; STAMCOUNTER StatRegPaletteRd; STAMCOUNTER StatRegPitchLockRd; STAMCOUNTER StatRegPsuedoColorRd; STAMCOUNTER StatRegRedMaskRd; STAMCOUNTER StatRegScratchRd; STAMCOUNTER StatRegScratchSizeRd; STAMCOUNTER StatRegSyncRd; STAMCOUNTER StatRegTopRd; STAMCOUNTER StatRegTracesRd; STAMCOUNTER StatRegUnknownRd; STAMCOUNTER StatRegVramSizeRd; STAMCOUNTER StatRegWidthRd; STAMCOUNTER StatRegWriteOnlyRd; STAMCOUNTER StatRegCommandLowRd; STAMCOUNTER StatRegCommandHighRd; STAMCOUNTER StatRegMaxPrimBBMemRd; STAMCOUNTER StatRegGBMemSizeRd; STAMCOUNTER StatRegDevCapRd; STAMCOUNTER StatRegCmdPrependLowRd; STAMCOUNTER StatRegCmdPrependHighRd; STAMCOUNTER StatRegScrnTgtMaxWidthRd; STAMCOUNTER StatRegScrnTgtMaxHeightRd; STAMCOUNTER StatRegMobMaxSizeRd; } VMSVGAState, VMSVGASTATE; /** * The VMSVGA device state for ring-3 * * This instantatiated as VGASTATER3::svga. */ typedef struct VMSVGASTATER3 { /** The R3 FIFO pointer. */ R3PTRTYPE(uint32_t *) pau32FIFO; /** R3 Opaque pointer to svga state. */ R3PTRTYPE(PVMSVGAR3STATE) pSvgaR3State; /** R3 Opaque pointer to 3d state. */ R3PTRTYPE(PVMSVGA3DSTATE) p3dState; /** The separate VGA frame buffer in svga mode. * Unlike the the boch-based VGA device implementation, VMSVGA seems to have a * separate frame buffer for VGA and allows concurrent use of both. The SVGA * SDK is making use of this to do VGA text output while testing other things in * SVGA mode, displaying the result by switching back to VGA text mode. So, * when entering SVGA mode we copy the first part of the frame buffer here and * direct VGA accesses here instead. It is copied back when leaving SVGA mode. */ R3PTRTYPE(uint8_t *) pbVgaFrameBufferR3; /** R3 Opaque pointer to an external fifo cmd parameter. */ R3PTRTYPE(void * volatile) pvFIFOExtCmdParam; /** FIFO external command semaphore. */ R3PTRTYPE(RTSEMEVENT) hFIFOExtCmdSem; /** FIFO IO Thread. */ R3PTRTYPE(PPDMTHREAD) pFIFOIOThread; } VMSVGASTATER3; /** * The VMSVGA device state for ring-0 * * This instantatiated as VGASTATER0::svga. */ typedef struct VMSVGASTATER0 { /** The R0 FIFO pointer. * @note This only points to the _first_ _page_ of the FIFO! */ R0PTRTYPE(uint32_t *) pau32FIFO; } VMSVGASTATER0; typedef struct VGAState *PVGASTATE; typedef struct VGASTATER3 *PVGASTATER3; typedef struct VGASTATER0 *PVGASTATER0; typedef struct VGASTATERC *PVGASTATERC; typedef CTX_SUFF(PVGASTATE) PVGASTATECC; DECLCALLBACK(int) vmsvgaR3PciIORegionFifoMapUnmap(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion, RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType); DECLCALLBACK(VBOXSTRICTRC) vmsvgaIORead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb); DECLCALLBACK(VBOXSTRICTRC) vmsvgaIOWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb); DECLCALLBACK(void) vmsvgaR3PortSetViewport(PPDMIDISPLAYPORT pInterface, uint32_t uScreenId, uint32_t x, uint32_t y, uint32_t cx, uint32_t cy); DECLCALLBACK(void) vmsvgaR3PortReportMonitorPositions(PPDMIDISPLAYPORT pInterface, uint32_t cPositions, PCRTPOINT paPositions); int vmsvgaR3Init(PPDMDEVINS pDevIns); int vmsvgaR3Reset(PPDMDEVINS pDevIns); int vmsvgaR3Destruct(PPDMDEVINS pDevIns); int vmsvgaR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass); int vmsvgaR3LoadDone(PPDMDEVINS pDevIns); int vmsvgaR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); DECLCALLBACK(void) vmsvgaR3PowerOn(PPDMDEVINS pDevIns); DECLCALLBACK(void) vmsvgaR3PowerOff(PPDMDEVINS pDevIns); void vmsvgaR3FifoWatchdogTimer(PPDMDEVINS pDevIns, PVGASTATE pThis, PVGASTATECC pThisCC); #ifdef IN_RING3 VMSVGASCREENOBJECT *vmsvgaR3GetScreenObject(PVGASTATECC pThisCC, uint32_t idScreen); int vmsvgaR3UpdateScreen(PVGASTATECC pThisCC, VMSVGASCREENOBJECT *pScreen, int x, int y, int w, int h); #endif int vmsvgaR3GmrTransfer(PVGASTATE pThis, PVGASTATECC pThisCC, const SVGA3dTransferType enmTransferType, uint8_t *pbHstBuf, uint32_t cbHstBuf, uint32_t offHst, int32_t cbHstPitch, SVGAGuestPtr gstPtr, uint32_t offGst, int32_t cbGstPitch, uint32_t cbWidth, uint32_t cHeight); void vmsvgaR3ClipCopyBox(const SVGA3dSize *pSizeSrc, const SVGA3dSize *pSizeDest, SVGA3dCopyBox *pBox); void vmsvgaR3ClipBox(const SVGA3dSize *pSize, SVGA3dBox *pBox); void vmsvgaR3ClipRect(SVGASignedRect const *pBound, SVGASignedRect *pRect); void vmsvgaR3Clip3dRect(SVGA3dRect const *pBound, SVGA3dRect RT_UNTRUSTED_GUEST *pRect); /* * GBO (Guest Backed Object). * A GBO is a list of the guest pages. GBOs are used for VMSVGA MOBs (Memory OBjects) * and Object Tables which the guest shares with the host. * * A GBO is similar to a GMR. Nevertheless I'll create a new code for GBOs in order * to avoid tweaking and possibly breaking existing code. Moreover it will be probably possible to * map the guest pages into the host R3 memory and access them directly. */ /* GBO descriptor. */ typedef struct VMSVGAGBODESCRIPTOR { RTGCPHYS GCPhys; uint64_t cPages; } VMSVGAGBODESCRIPTOR, *PVMSVGAGBODESCRIPTOR; typedef VMSVGAGBODESCRIPTOR const *PCVMSVGAGBODESCRIPTOR; /* GBO. */ typedef struct VMSVGAGBO { uint32_t fGboFlags; uint32_t cTotalPages; uint32_t cbTotal; uint32_t cDescriptors; PVMSVGAGBODESCRIPTOR paDescriptors; void *pvHost; /* Pointer to cbTotal bytes on the host if VMSVGAGBO_F_HOST_BACKED is set. */ } VMSVGAGBO, *PVMSVGAGBO; typedef VMSVGAGBO const *PCVMSVGAGBO; #define VMSVGAGBO_F_WRITE_PROTECTED 0x1 #define VMSVGAGBO_F_HOST_BACKED 0x2 #define VMSVGA_IS_GBO_CREATED(a_Gbo) ((a_Gbo)->paDescriptors != NULL) int vmsvgaR3OTableReadSurface(PVMSVGAR3STATE pSvgaR3State, uint32_t sid, SVGAOTableSurfaceEntry *pEntrySurface); /* MOB is also a GBO. */ typedef struct VMSVGAMOB { AVLU32NODECORE Core; /* Key is the mobid. */ RTLISTNODE nodeLRU; VMSVGAGBO Gbo; } VMSVGAMOB, *PVMSVGAMOB; typedef VMSVGAMOB const *PCVMSVGAMOB; PVMSVGAMOB vmsvgaR3MobGet(PVMSVGAR3STATE pSvgaR3State, SVGAMobId RT_UNTRUSTED_GUEST mobid); int vmsvgaR3MobWrite(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob, uint32_t off, void const *pvData, uint32_t cbData); int vmsvgaR3MobRead(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob, uint32_t off, void *pvData, uint32_t cbData); int vmsvgaR3MobBackingStoreCreate(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob, uint32_t cbValid); void vmsvgaR3MobBackingStoreDelete(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob); int vmsvgaR3MobBackingStoreWriteToGuest(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob); int vmsvgaR3MobBackingStoreReadFromGuest(PVMSVGAR3STATE pSvgaR3State, PVMSVGAMOB pMob); void *vmsvgaR3MobBackingStorePtr(PVMSVGAMOB pMob, uint32_t off); DECLINLINE(uint32_t) vmsvgaR3MobSize(PVMSVGAMOB pMob) { if (pMob) return pMob->Gbo.cbTotal; return 0; } DECLINLINE(uint32_t) vmsvgaR3MobId(PVMSVGAMOB pMob) { if (pMob) return pMob->Core.Key; return SVGA_ID_INVALID; } #ifdef DEBUG_sunlover #define DEBUG_BREAKPOINT_TEST() do { ASMBreakpoint(); } while (0) #else #define DEBUG_BREAKPOINT_TEST() do { } while (0) #endif #endif /* !VBOX_INCLUDED_SRC_Graphics_DevVGA_SVGA_h */