BS3_DECL(void) Bs3SlabInit(PBS3SLABCTL pSlabCtl, size_t cbSlabCtl, uint32_t uFlatSlabPtr, uint32_t cbSlab, uint16_t cbChunk)
{
uint16_t cBits;
BS3_ASSERT(RT_IS_POWER_OF_TWO(cbChunk));
BS3_ASSERT(cbSlab >= cbChunk * 4);
BS3_ASSERT(!(uFlatSlabPtr & (cbChunk - 1)));
BS3_XPTR_SET_FLAT(BS3SLABCTL, pSlabCtl->pNext, 0);
BS3_XPTR_SET_FLAT(BS3SLABCTL, pSlabCtl->pHead, 0);
BS3_XPTR_SET_FLAT(BS3SLABCTL, pSlabCtl->pbStart, uFlatSlabPtr);
pSlabCtl->cbChunk = cbChunk;
pSlabCtl->cChunkShift = ASMBitFirstSetU16(cbChunk) - 1;
pSlabCtl->cChunks = cbSlab >> pSlabCtl->cChunkShift;
pSlabCtl->cFreeChunks = pSlabCtl->cChunks;
cBits = RT_ALIGN_T(pSlabCtl->cChunks, 32, uint16_t);
BS3_ASSERT(cbSlabCtl >= RT_OFFSETOF(BS3SLABCTL, bmAllocated[cBits >> 3]));
Bs3MemZero(&pSlabCtl->bmAllocated, cBits >> 3);
/* Mark excess bitmap padding bits as allocated. */
if (cBits != pSlabCtl->cChunks)
{
uint16_t iBit;
for (iBit = pSlabCtl->cChunks; iBit < cBits; iBit++)
ASMBitSet(pSlabCtl->bmAllocated, iBit);
}
}
/**
* Maps a range of physical pages at a given virtual address
* in the guest context.
*
* The GC virtual address range must be within an existing mapping.
*
* @returns VBox status code.
* @param pVM The virtual machine.
* @param GCPtr Where to map the page(s). Must be page aligned.
* @param HCPhys Start of the range of physical pages. Must be page aligned.
* @param cbPages Number of bytes to map. Must be page aligned.
* @param fFlags Page flags (X86_PTE_*).
*/
VMMDECL(int) PGMMap(PVM pVM, RTGCUINTPTR GCPtr, RTHCPHYS HCPhys, uint32_t cbPages, unsigned fFlags)
{
AssertMsg(pVM->pgm.s.offVM, ("Bad init order\n"));
/*
* Validate input.
*/
AssertMsg(RT_ALIGN_T(GCPtr, PAGE_SIZE, RTGCUINTPTR) == GCPtr, ("Invalid alignment GCPtr=%#x\n", GCPtr));
AssertMsg(cbPages > 0 && RT_ALIGN_32(cbPages, PAGE_SIZE) == cbPages, ("Invalid cbPages=%#x\n", cbPages));
AssertMsg(!(fFlags & X86_PDE_PG_MASK), ("Invalid flags %#x\n", fFlags));
/* hypervisor defaults */
if (!fFlags)
fFlags = X86_PTE_P | X86_PTE_A | X86_PTE_D;
/*
* Find the mapping.
*/
PPGMMAPPING pCur = pVM->pgm.s.CTX_SUFF(pMappings);
while (pCur)
{
if (GCPtr - pCur->GCPtr < pCur->cb)
{
if (GCPtr + cbPages - 1 > pCur->GCPtrLast)
{
AssertMsgFailed(("Invalid range!!\n"));
return VERR_INVALID_PARAMETER;
}
/*
* Setup PTE.
*/
X86PTEPAE Pte;
Pte.u = fFlags | (HCPhys & X86_PTE_PAE_PG_MASK);
/*
* Update the page tables.
*/
for (;;)
{
RTGCUINTPTR off = GCPtr - pCur->GCPtr;
const unsigned iPT = off >> X86_PD_SHIFT;
const unsigned iPageNo = (off >> PAGE_SHIFT) & X86_PT_MASK;
/* 32-bit */
pCur->aPTs[iPT].CTX_SUFF(pPT)->a[iPageNo].u = (uint32_t)Pte.u; /* ASSUMES HCPhys < 4GB and/or that we're never gonna do 32-bit on a PAE host! */
/* pae */
PGMSHWPTEPAE_SET(pCur->aPTs[iPT].CTX_SUFF(paPaePTs)[iPageNo / 512].a[iPageNo % 512], Pte.u);
/* next */
cbPages -= PAGE_SIZE;
if (!cbPages)
break;
GCPtr += PAGE_SIZE;
Pte.u += PAGE_SIZE;
}
return VINF_SUCCESS;
}
/* next */
pCur = pCur->CTX_SUFF(pNext);
}
AssertMsgFailed(("GCPtr=%#x was not found in any mapping ranges!\n", GCPtr));
return VERR_INVALID_PARAMETER;
}
/* Called to create DirectDraw surface.
* Note: we always return DDHAL_DRIVER_NOTHANDLED, which asks DirectDraw memory manager
* to perform actual memory allocation in our DDraw heap.
*/
DWORD APIENTRY VBoxDispDDCreateSurface(PDD_CREATESURFACEDATA lpCreateSurface)
{
PVBOXDISPDEV pDev = (PVBOXDISPDEV) lpCreateSurface->lpDD->dhpdev;
LOGF_ENTER();
PDD_SURFACE_LOCAL pSurf = lpCreateSurface->lplpSList[0];
if (pSurf->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
{
LOG(("primary surface"));
pSurf->lpGbl->fpVidMem = 0;
}
else
{
LOG(("non primary surface"));
pSurf->lpGbl->fpVidMem = DDHAL_PLEASEALLOC_BLOCKSIZE;
}
pSurf->lpGbl->dwReserved1 = 0;
#ifdef VBOX_WITH_VIDEOHWACCEL
if(pDev->vhwa.bEnabled)
{
VBOXVHWACMD* pCmd;
pCmd = VBoxDispVHWACommandCreate(pDev, VBOXVHWACMD_TYPE_SURF_CREATE, sizeof(VBOXVHWACMD_SURF_CREATE));
if (pCmd)
{
VBOXVHWACMD_SURF_CREATE *pBody = VBOXVHWACMD_BODY(pCmd, VBOXVHWACMD_SURF_CREATE);
PVBOXVHWASURFDESC pDesc;
int rc;
memset(pBody, 0, sizeof(VBOXVHWACMD_SURF_CREATE));
rc = VBoxDispVHWAFromDDSURFACEDESC(&pBody->SurfInfo, lpCreateSurface->lpDDSurfaceDesc);
VBOX_WARNRC(rc);
pBody->SurfInfo.surfCaps = VBoxDispVHWAFromDDSCAPS(pSurf->ddsCaps.dwCaps);
pBody->SurfInfo.flags |= DDSD_CAPS;
pBody->SurfInfo.height = pSurf->lpGbl->wHeight;
pBody->SurfInfo.width = pSurf->lpGbl->wWidth;
pBody->SurfInfo.flags |= DDSD_HEIGHT | DDSD_WIDTH;
VBoxDispVHWAFromDDPIXELFORMAT(&pBody->SurfInfo.PixelFormat, &pSurf->lpGbl->ddpfSurface);
pBody->SurfInfo.flags |= VBOXVHWA_SD_PIXELFORMAT;
if (pSurf->ddsCaps.dwCaps & DDSCAPS_PRIMARYSURFACE)
{
pBody->SurfInfo.offSurface = VBoxDispVHWAVramOffsetFromPDEV(pDev, 0);
}
else
{
pBody->SurfInfo.offSurface = VBOXVHWA_OFFSET64_VOID;
}
pDesc = VBoxDispVHWASurfDescAlloc();
if (pDesc)
{
VBoxDispVHWACommandSubmit(pDev, pCmd);
if (RT_SUCCESS(pCmd->rc))
{
uint32_t surfSizeX = pBody->SurfInfo.sizeX;
uint32_t surfSizeY = pBody->SurfInfo.sizeY;
pDesc->hHostHandle = pBody->SurfInfo.hSurf;
if(!!(pSurf->ddsCaps.dwCaps & DDSCAPS_OVERLAY)
&& !!(pSurf->ddsCaps.dwCaps & DDSCAPS_VISIBLE))
{
pDesc->bVisible = true;
}
pSurf->lpGbl->dwBlockSizeX = pBody->SurfInfo.sizeX;
pSurf->lpGbl->dwBlockSizeY = pBody->SurfInfo.sizeY;
pSurf->lpGbl->lPitch = pBody->SurfInfo.pitch;
lpCreateSurface->lpDDSurfaceDesc->lPitch = pSurf->lpGbl->lPitch;
lpCreateSurface->lpDDSurfaceDesc->dwFlags |= DDSD_PITCH;
/*@todo: it's probably a memory leak, because DDDestroySurface wouldn't be called for
* primary surfaces.
*/
pSurf->lpGbl->dwReserved1 = (ULONG_PTR)pDesc;
}
else
{
WARN(("VBoxDispVHWACommandSubmit failed with rc=%#x", rc));
VBoxDispVHWASurfDescFree(pDesc);
}
}
else
{
WARN(("VBoxDispVHWASurfDescAlloc failed"));
}
VBoxDispVHWACommandRelease(pDev, pCmd);
}
else
{
WARN(("VBoxDispVHWACommandCreate failed"));
}
return DDHAL_DRIVER_NOTHANDLED;
}
#endif /*VBOX_WITH_VIDEOHWACCEL*/
LPDDSURFACEDESC pDesc = lpCreateSurface->lpDDSurfaceDesc;
if (pDesc->ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED4)
{
pSurf->lpGbl->lPitch = RT_ALIGN_T(pSurf->lpGbl->wWidth/2, 32, LONG);
}
else
if (pDesc->ddpfPixelFormat.dwFlags & DDPF_PALETTEINDEXED8)
{
pSurf->lpGbl->lPitch = RT_ALIGN_T(pSurf->lpGbl->wWidth, 32, LONG);
}
else
{
pSurf->lpGbl->lPitch = pSurf->lpGbl->wWidth*(pDesc->ddpfPixelFormat.dwRGBBitCount/8);
}
pSurf->lpGbl->dwBlockSizeX = pSurf->lpGbl->lPitch;
pSurf->lpGbl->dwBlockSizeY = pSurf->lpGbl->wHeight;
pDesc->lPitch = pSurf->lpGbl->lPitch;
pDesc->dwFlags |= DDSD_PITCH;
LOGF_LEAVE();
return DDHAL_DRIVER_NOTHANDLED;
}