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[NTOS]: Build the actual ARM3 PFN database.
svn path=/trunk/; revision=45610
This commit is contained in:
Sir Richard
parent
da398fe2c4
commit
be43595873
1 changed files with 228 additions and 6 deletions
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@ -636,14 +636,13 @@ MiBuildPfnDatabaseFromPages(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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if (MiIsRegularMemory(LoaderBlock, PageFrameIndex))
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if (MiIsRegularMemory(LoaderBlock, PageFrameIndex))
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{
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{
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/* Yes we do, set it up */
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/* Yes we do, set it up */
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//DPRINT1("PDE is valid, setting up PFN entry\n");
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Pfn1 = MI_PFN_TO_PFNENTRY(PageFrameIndex);
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Pfn1 = MI_PFN_TO_PFNENTRY(PageFrameIndex);
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Pfn1->u4.PteFrame = StartupPdIndex;
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Pfn1->u4.PteFrame = StartupPdIndex;
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Pfn1->PteAddress = PointerPde;
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Pfn1->PteAddress = PointerPde;
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Pfn1->u2.ShareCount++;
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Pfn1->u2.ShareCount++;
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Pfn1->u3.e2.ReferenceCount = 1;
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Pfn1->u3.e2.ReferenceCount = 1;
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Pfn1->u3.e1.PageLocation = ActiveAndValid;
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Pfn1->u3.e1.PageLocation = ActiveAndValid;
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Pfn1->u3.e1.CacheAttribute = MiCached;
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Pfn1->u3.e1.CacheAttribute = MiNonCached;
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}
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}
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else
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else
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{
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{
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@ -686,7 +685,7 @@ MiBuildPfnDatabaseFromPages(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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Pfn2->u2.ShareCount++;
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Pfn2->u2.ShareCount++;
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Pfn2->u3.e2.ReferenceCount = 1;
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Pfn2->u3.e2.ReferenceCount = 1;
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Pfn2->u3.e1.PageLocation = ActiveAndValid;
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Pfn2->u3.e1.PageLocation = ActiveAndValid;
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Pfn2->u3.e1.CacheAttribute = MiCached;
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Pfn2->u3.e1.CacheAttribute = MiNonCached;
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}
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}
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}
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}
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}
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}
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@ -712,21 +711,181 @@ VOID
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NTAPI
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NTAPI
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MiBuildPfnDatabaseZeroPage(VOID)
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MiBuildPfnDatabaseZeroPage(VOID)
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{
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{
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/* FIXME: TODO */
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PMMPFN Pfn1;
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PMMPDE PointerPde;
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/* Grab the lowest page and check if it has no real references */
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Pfn1 = MI_PFN_TO_PFNENTRY(MmLowestPhysicalPage);
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if (!(MmLowestPhysicalPage) && !(Pfn1->u3.e2.ReferenceCount))
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{
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/* Make it a bogus page to catch errors */
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PointerPde = MiAddressToPde(0xFFFFFFFF);
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Pfn1->u4.PteFrame = PFN_FROM_PTE(PointerPde);
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Pfn1->PteAddress = PointerPde;
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Pfn1->u2.ShareCount++;
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Pfn1->u3.e2.ReferenceCount = 0xFFF0;
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Pfn1->u3.e1.PageLocation = ActiveAndValid;
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Pfn1->u3.e1.CacheAttribute = MiNonCached;
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}
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}
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}
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VOID
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VOID
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NTAPI
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NTAPI
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MiBuildPfnDatabaseFromLoaderBlock(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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MiBuildPfnDatabaseFromLoaderBlock(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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{
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{
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/* FIXME: TODO */
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PLIST_ENTRY NextEntry;
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PFN_NUMBER PageCount = 0;
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PMEMORY_ALLOCATION_DESCRIPTOR MdBlock;
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PFN_NUMBER PageFrameIndex;
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PMMPFN Pfn1;
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PMMPTE PointerPte;
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PMMPDE PointerPde;
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/* Now loop through the descriptors */
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NextEntry = LoaderBlock->MemoryDescriptorListHead.Flink;
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while (NextEntry != &LoaderBlock->MemoryDescriptorListHead)
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{
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/* Get the current descriptor */
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MdBlock = CONTAINING_RECORD(NextEntry,
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MEMORY_ALLOCATION_DESCRIPTOR,
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ListEntry);
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/* Read its data */
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PageCount = MdBlock->PageCount;
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PageFrameIndex = MdBlock->BasePage;
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/* Don't allow memory above what the PFN database is mapping */
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if (PageFrameIndex > MmHighestPhysicalPage)
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{
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/* Since they are ordered, everything past here will be larger */
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break;
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}
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/* On the other hand, the end page might be higher up... */
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if ((PageFrameIndex + PageCount) > (MmHighestPhysicalPage + 1))
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{
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/* In which case we'll trim the descriptor to go as high as we can */
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PageCount = MmHighestPhysicalPage + 1 - PageFrameIndex;
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MdBlock->PageCount = PageCount;
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/* But if there's nothing left to trim, we got too high, so quit */
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if (!PageCount) break;
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}
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/* Now check the descriptor type */
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switch (MdBlock->MemoryType)
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{
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/* Check for bad RAM */
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case LoaderBad:
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DPRINT1("You have damaged RAM modules. Stopping boot\n");
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while (TRUE);
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break;
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/* Check for free RAM */
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case LoaderFree:
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case LoaderLoadedProgram:
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case LoaderFirmwareTemporary:
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case LoaderOsloaderStack:
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/* Get the last page of this descriptor. Note we loop backwards */
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PageFrameIndex += PageCount - 1;
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Pfn1 = MI_PFN_TO_PFNENTRY(PageFrameIndex);
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while (PageCount--)
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{
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/* If the page really has no references, mark it as free */
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if (!Pfn1->u3.e2.ReferenceCount)
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{
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Pfn1->u3.e1.CacheAttribute = MiNonCached;
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MiInsertPageInFreeList(PageFrameIndex);
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}
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/* Go to the next page */
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Pfn1--;
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PageFrameIndex--;
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}
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/* Done with this block */
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break;
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/* Check for pages that are invisible to us */
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case LoaderFirmwarePermanent:
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case LoaderSpecialMemory:
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case LoaderBBTMemory:
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/* And skip them */
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break;
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default:
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/* Map these pages with the KSEG0 mapping that adds 0x80000000 */
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PointerPte = MiAddressToPte(KSEG0_BASE + (PageFrameIndex << PAGE_SHIFT));
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Pfn1 = MI_PFN_TO_PFNENTRY(PageFrameIndex);
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while (PageCount--)
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{
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/* Check if the page is really unused */
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PointerPde = MiAddressToPde(KSEG0_BASE + (PageFrameIndex << PAGE_SHIFT));
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if (!Pfn1->u3.e2.ReferenceCount)
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{
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/* Mark it as being in-use */
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Pfn1->u4.PteFrame = PFN_FROM_PTE(PointerPde);
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Pfn1->PteAddress = PointerPte;
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Pfn1->u2.ShareCount++;
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Pfn1->u3.e2.ReferenceCount = 1;
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Pfn1->u3.e1.PageLocation = ActiveAndValid;
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Pfn1->u3.e1.CacheAttribute = MiNonCached;
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/* Check for RAM disk page */
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if (MdBlock->MemoryType == LoaderXIPRom)
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{
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/* Make it a pseudo-I/O ROM mapping */
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Pfn1->u1.Flink = 0;
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Pfn1->u2.ShareCount = 0;
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Pfn1->u3.e2.ReferenceCount = 0;
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Pfn1->u3.e1.PageLocation = 0;
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Pfn1->u3.e1.Rom = 1;
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Pfn1->u4.InPageError = 0;
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Pfn1->u3.e1.PrototypePte = 1;
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}
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}
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/* Advance page structures */
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Pfn1++;
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PageFrameIndex++;
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PointerPte++;
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}
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break;
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}
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/* Next descriptor entry */
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NextEntry = MdBlock->ListEntry.Flink;
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}
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}
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}
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VOID
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VOID
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NTAPI
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NTAPI
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MiBuildPfnDatabaseSelf(VOID)
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MiBuildPfnDatabaseSelf(VOID)
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{
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{
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/* FIXME: TODO */
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PMMPTE PointerPte, LastPte;
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PMMPFN Pfn1;
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/* Loop the PFN database page */
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PointerPte = MiAddressToPte(MI_PFN_TO_PFNENTRY(MmLowestPhysicalPage));
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LastPte = MiAddressToPte(MI_PFN_TO_PFNENTRY(MmHighestPhysicalPage));
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while (PointerPte <= LastPte)
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{
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/* Make sure the page is valid */
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if (PointerPte->u.Hard.Valid == 1)
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{
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/* Get the PFN entry and just mark it referenced */
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Pfn1 = MI_PFN_TO_PFNENTRY(PointerPte->u.Hard.PageFrameNumber);
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Pfn1->u2.ShareCount = 1;
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Pfn1->u3.e2.ReferenceCount = 1;
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}
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/* Next */
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PointerPte++;
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}
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}
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}
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VOID
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VOID
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@ -746,6 +905,69 @@ MiInitializePfnDatabase(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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MiBuildPfnDatabaseSelf();
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MiBuildPfnDatabaseSelf();
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}
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}
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VOID
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NTAPI
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MmDumpArmPfnDatabase(VOID)
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{
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ULONG i;
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PMMPFN Pfn1;
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PCHAR Consumer = "Unknown";
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KIRQL OldIrql;
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ULONG ActivePages = 0, FreePages = 0, OtherPages = 0;
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KeRaiseIrql(HIGH_LEVEL, &OldIrql);
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//
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// Loop the PFN database
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//
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for (i = 0; i <= MmHighestPhysicalPage; i++)
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{
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Pfn1 = MI_PFN_TO_PFNENTRY(i);
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if (!Pfn1) continue;
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//
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// Get the page location
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//
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switch (Pfn1->u3.e1.PageLocation)
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{
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case ActiveAndValid:
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Consumer = "Active and Valid";
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ActivePages++;
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break;
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case FreePageList:
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Consumer = "Free Page List";
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FreePages++;
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break;
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default:
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Consumer = "Other (ASSERT!)";
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OtherPages++;
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break;
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}
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//
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// Pretty-print the page
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//
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DbgPrint("0x%08p:\t%20s\t(%02d.%02d) [%08p-%08p])\n",
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i << PAGE_SHIFT,
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Consumer,
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Pfn1->u3.e2.ReferenceCount,
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Pfn1->u2.ShareCount,
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Pfn1->PteAddress,
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Pfn1->u4.PteFrame);
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}
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DbgPrint("Active: %d pages\t[%d KB]\n", ActivePages, (ActivePages << PAGE_SHIFT) / 1024);
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DbgPrint("Free: %d pages\t[%d KB]\n", FreePages, (FreePages << PAGE_SHIFT) / 1024);
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DbgPrint("Other: %d pages\t[%d KB]\n", OtherPages, (OtherPages << PAGE_SHIFT) / 1024);
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KeLowerIrql(OldIrql);
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}
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PFN_NUMBER
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PFN_NUMBER
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NTAPI
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NTAPI
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MiPagesInLoaderBlock(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
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MiPagesInLoaderBlock(IN PLOADER_PARAMETER_BLOCK LoaderBlock,
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