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[FORMATTING] Reformat MmInit1.
Also, it seems someone added code to get the First/LastKernPhysAddrs without having them setup (they are setup by the FreeLDR hack-code in freeldr.c, not by "real" bootloaders)... so why set them up in the first place? The code now uses the nice memory-list based routines to get this information instead. Re-factored some detection and debugging code, cleaned up comments. svn path=/trunk/; revision=32353
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ReactOS Portable Systems Group
parent
44baeebd8a
commit
ad3e1b7948
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@ -51,6 +51,12 @@ PVOID MiNonPagedPoolStart;
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ULONG MiNonPagedPoolLength;
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ULONG MmNumberOfPhysicalPages;
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extern KMUTANT MmSystemLoadLock;
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BOOLEAN MiDbgEnableMdDump =
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#ifdef _ARM_
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TRUE;
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#else
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FALSE;
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#endif
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/* PRIVATE FUNCTIONS *********************************************************/
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@ -224,6 +230,54 @@ MiCountFreePagesInLoaderBlock(PLOADER_PARAMETER_BLOCK LoaderBlock)
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return TotalPages;
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}
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VOID
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NTAPI
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MiDbgDumpMemoryDescriptors(VOID)
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{
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PLIST_ENTRY NextEntry;
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PMEMORY_ALLOCATION_DESCRIPTOR Md;
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ULONG TotalPages = 0;
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DPRINT1("Base\t\tLength\t\tType\n");
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for (NextEntry = KeLoaderBlock->MemoryDescriptorListHead.Flink;
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NextEntry != &KeLoaderBlock->MemoryDescriptorListHead;
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NextEntry = NextEntry->Flink)
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{
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Md = CONTAINING_RECORD(NextEntry, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
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DPRINT1("%08lX\t%08lX\t%s\n", Md->BasePage, Md->PageCount, MemType[Md->MemoryType]);
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TotalPages += Md->PageCount;
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}
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DPRINT1("Total: %08lX (%d MB)\n", TotalPages, (TotalPages * PAGE_SIZE) / 1024 / 1024);
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}
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ULONG_PTR
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NTAPI
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MiGetLastKernelAddress(VOID)
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{
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PLIST_ENTRY NextEntry;
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PMEMORY_ALLOCATION_DESCRIPTOR Md;
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ULONG_PTR LastKrnlPhysAddr = 0;
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for (NextEntry = KeLoaderBlock->MemoryDescriptorListHead.Flink;
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NextEntry != &KeLoaderBlock->MemoryDescriptorListHead;
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NextEntry = NextEntry->Flink)
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{
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Md = CONTAINING_RECORD(NextEntry, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
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if (Md->MemoryType == LoaderBootDriver ||
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Md->MemoryType == LoaderSystemCode ||
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Md->MemoryType == LoaderHalCode)
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{
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if (Md->BasePage+Md->PageCount > LastKrnlPhysAddr)
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LastKrnlPhysAddr = Md->BasePage+Md->PageCount;
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}
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}
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/* Convert to a physical address */
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return LastKrnlPhysAddr << PAGE_SHIFT;
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}
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VOID
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INIT_FUNCTION
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NTAPI
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@ -233,165 +287,86 @@ MmInit1(ULONG_PTR FirstKrnlPhysAddr,
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PADDRESS_RANGE BIOSMemoryMap,
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ULONG AddressRangeCount,
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ULONG MaxMem)
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/*
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* FUNCTION: Initalize memory managment
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*/
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{
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ULONG kernel_len;
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ULONG_PTR MappingAddress;
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PLDR_DATA_TABLE_ENTRY LdrEntry;
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DPRINT("MmInit1(FirstKrnlPhysAddr, %p, LastKrnlPhysAddr %p, LastKernelAddress %p)\n",
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FirstKrnlPhysAddr,
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LastKrnlPhysAddr,
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LastKernelAddress);
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ULONG kernel_len;
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ULONG_PTR MappingAddress;
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PLDR_DATA_TABLE_ENTRY LdrEntry;
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/* Dump memory descriptors */
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if (MiDbgEnableMdDump) MiDbgDumpMemoryDescriptors();
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/* Set the page directory */
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PsGetCurrentProcess()->Pcb.DirectoryTableBase.LowPart = (ULONG)MmGetPageDirectory();
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/* NTLDR Hacks */
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if (!MmFreeLdrPageDirectoryEnd) MmFreeLdrPageDirectoryEnd = 0x40000;
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/* Get the first physical address */
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LdrEntry = CONTAINING_RECORD(KeLoaderBlock->LoadOrderListHead.Flink,
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LDR_DATA_TABLE_ENTRY,
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InLoadOrderLinks);
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FirstKrnlPhysAddr = (ULONG_PTR)LdrEntry->DllBase - KSEG0_BASE;
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/* Get the last kernel address */
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LastKrnlPhysAddr = MiGetLastKernelAddress();
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LastKernelAddress = LastKrnlPhysAddr | KSEG0_BASE;
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/* Set memory limits */
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MmSystemRangeStart = (PVOID)KSEG0_BASE;
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MmUserProbeAddress = (ULONG_PTR)MmSystemRangeStart - 0x10000;
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MmHighestUserAddress = (PVOID)(MmUserProbeAddress - 1);
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DPRINT("MmSystemRangeStart: %08x\n", MmSystemRangeStart);
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DPRINT("MmUserProbeAddress: %08x\n", MmUserProbeAddress);
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DPRINT("MmHighestUserAddress:%08x\n", MmHighestUserAddress);
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/* Initialize memory managment statistics */
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RtlZeroMemory(&MmStats, sizeof(MmStats));
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/* Count RAM */
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MmStats.NrTotalPages = MiCountFreePagesInLoaderBlock(KeLoaderBlock);
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MmNumberOfPhysicalPages = MmStats.NrTotalPages;
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if (!MmStats.NrTotalPages)
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{
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PLIST_ENTRY NextEntry;
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PMEMORY_ALLOCATION_DESCRIPTOR Md;
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ULONG TotalPages = 0;
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DbgPrint("Memory not detected, default to 8 MB\n");
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MmStats.NrTotalPages = 2048;
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}
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else
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{
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/* HACK: add 1MB for standard memory (not extended). Why? */
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DbgPrint("Used memory %dKb\n", (MmStats.NrTotalPages * PAGE_SIZE) / 1024);
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MmStats.NrTotalPages += 256;
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}
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/* Initialize the kernel address space */
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MmInitializeKernelAddressSpace();
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MmInitGlobalKernelPageDirectory();
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DPRINT("Base\t\tLength\t\tType\n");
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for (NextEntry = KeLoaderBlock->MemoryDescriptorListHead.Flink;
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NextEntry != &KeLoaderBlock->MemoryDescriptorListHead;
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NextEntry = NextEntry->Flink)
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{
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Md = CONTAINING_RECORD(NextEntry, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
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DPRINT("%08lX\t%08lX\t%s\n", Md->BasePage, Md->PageCount, MemType[Md->MemoryType]);
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TotalPages += Md->PageCount;
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}
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/* Initialize the page list */
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LastKernelAddress = (ULONG_PTR)MmInitializePageList(FirstKrnlPhysAddr,
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LastKrnlPhysAddr,
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MmStats.NrTotalPages,
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PAGE_ROUND_UP(LastKernelAddress),
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BIOSMemoryMap,
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AddressRangeCount);
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kernel_len = LastKrnlPhysAddr - FirstKrnlPhysAddr;
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/* Unmap low memory */
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MmDeletePageTable(NULL, 0);
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DPRINT("Total: %08lX (%d MB)\n", TotalPages, (TotalPages * PAGE_SIZE) / 1024 / 1024);
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/* Unmap FreeLDR's 6MB allocation */
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DPRINT("Invalidating between %p and %p\n", LastKernelAddress, KSEG0_BASE + 0x00600000);
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for (MappingAddress = LastKernelAddress;
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MappingAddress < KSEG0_BASE + 0x00600000;
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MappingAddress += PAGE_SIZE)
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{
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MmRawDeleteVirtualMapping((PVOID)MappingAddress);
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}
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/* Set the page directory */
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DPRINT("CurrentProcess: %x\n", PsGetCurrentProcess());
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PsGetCurrentProcess()->Pcb.DirectoryTableBase.LowPart = (ULONG)MmGetPageDirectory();
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/* Intialize memory areas */
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MmInitVirtualMemory(LastKernelAddress, kernel_len);
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/* NTLDR Hacks */
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if (!MmFreeLdrPageDirectoryEnd) MmFreeLdrPageDirectoryEnd = 0x40000;
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if (!FirstKrnlPhysAddr)
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{
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/* Get the kernel entry */
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LdrEntry = CONTAINING_RECORD(KeLoaderBlock->LoadOrderListHead.Flink,
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LDR_DATA_TABLE_ENTRY,
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InLoadOrderLinks);
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/* Get the addresses */
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FirstKrnlPhysAddr = (ULONG_PTR)LdrEntry->DllBase - KSEG0_BASE;
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}
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/* Get the last kernel address */
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if (!LastKrnlPhysAddr)
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{
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PLIST_ENTRY NextEntry;
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PMEMORY_ALLOCATION_DESCRIPTOR Md;
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for (NextEntry = KeLoaderBlock->MemoryDescriptorListHead.Flink;
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NextEntry != &KeLoaderBlock->MemoryDescriptorListHead;
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NextEntry = NextEntry->Flink)
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{
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Md = CONTAINING_RECORD(NextEntry, MEMORY_ALLOCATION_DESCRIPTOR, ListEntry);
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if (Md->MemoryType == LoaderBootDriver ||
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Md->MemoryType == LoaderSystemCode ||
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Md->MemoryType == LoaderHalCode)
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{
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if (Md->BasePage+Md->PageCount > LastKrnlPhysAddr)
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LastKrnlPhysAddr = Md->BasePage+Md->PageCount;
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}
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}
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/* Convert to a physical address */
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LastKrnlPhysAddr = LastKrnlPhysAddr << PAGE_SHIFT;
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LastKernelAddress = LastKrnlPhysAddr | KSEG0_BASE;
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}
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/* Set memory limits */
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MmSystemRangeStart = (PVOID)KSEG0_BASE;
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MmUserProbeAddress = (ULONG_PTR)MmSystemRangeStart - 0x10000;
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MmHighestUserAddress = (PVOID)(MmUserProbeAddress - 1);
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DPRINT("MmSystemRangeStart: %08x\n", MmSystemRangeStart);
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DPRINT("MmUserProbeAddress: %08x\n", MmUserProbeAddress);
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DPRINT("MmHighestUserAddress:%08x\n", MmHighestUserAddress);
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/*
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* Initialize memory managment statistics
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*/
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MmStats.NrTotalPages = 0;
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MmStats.NrSystemPages = 0;
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MmStats.NrUserPages = 0;
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MmStats.NrReservedPages = 0;
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MmStats.NrUserPages = 0;
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MmStats.NrFreePages = 0;
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MmStats.NrLockedPages = 0;
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MmStats.PagingRequestsInLastMinute = 0;
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MmStats.PagingRequestsInLastFiveMinutes = 0;
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MmStats.PagingRequestsInLastFifteenMinutes = 0;
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/*
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* Free all pages not used for kernel memory
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* (we assume the kernel occupies a continuous range of physical
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* memory)
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*/
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DPRINT("first krnl %x, last krnl %x\n",FirstKrnlPhysAddr,
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LastKrnlPhysAddr);
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/*
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* Free physical memory not used by the kernel
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*/
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MmStats.NrTotalPages = MiCountFreePagesInLoaderBlock(KeLoaderBlock);
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MmNumberOfPhysicalPages = MmStats.NrTotalPages;
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if (!MmStats.NrTotalPages)
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{
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DbgPrint("Memory not detected, default to 8 MB\n");
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MmStats.NrTotalPages = 2048;
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}
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else
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{
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/* HACK: add 1MB for standard memory (not extended). Why? */
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MmStats.NrTotalPages += 256;
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}
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/*
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* Initialize the kernel address space
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*/
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MmInitializeKernelAddressSpace();
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MmInitGlobalKernelPageDirectory();
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DbgPrint("Used memory %dKb\n", (MmStats.NrTotalPages * PAGE_SIZE) / 1024);
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LastKernelAddress = (ULONG_PTR)MmInitializePageList(
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FirstKrnlPhysAddr,
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LastKrnlPhysAddr,
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MmStats.NrTotalPages,
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PAGE_ROUND_UP(LastKernelAddress),
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BIOSMemoryMap,
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AddressRangeCount);
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kernel_len = LastKrnlPhysAddr - FirstKrnlPhysAddr;
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/*
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* Unmap low memory
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*/
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MmDeletePageTable(NULL, 0);
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DPRINT("Invalidating between %x and %x\n",
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LastKernelAddress, KSEG0_BASE + 0x00600000);
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for (MappingAddress = LastKernelAddress;
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MappingAddress < KSEG0_BASE + 0x00600000;
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MappingAddress += PAGE_SIZE)
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{
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MmRawDeleteVirtualMapping((PVOID)MappingAddress);
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}
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DPRINT("Almost done MmInit()\n");
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/*
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* Intialize memory areas
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*/
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MmInitVirtualMemory(LastKernelAddress, kernel_len);
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MmInitializeMdlImplementation();
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/* Initialize MDLs */
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MmInitializeMdlImplementation();
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}
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BOOLEAN
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