return STATUS_SUCCESS;
//return MmPapFreePhysicalPages(4, 0, Address);
}
+
+NTSTATUS
+BlMmGetMemoryMap (
+ _In_ PLIST_ENTRY MemoryMap,
+ _In_ PBL_IMAGE_PARAMETERS MemoryParameters,
+ _In_ ULONG WhichTypes,
+ _In_ ULONG Flags
+ )
+{
+ BL_MEMORY_DESCRIPTOR_LIST FirmwareMdList, FullMdList;
+ BOOLEAN DoFirmware, DoPersistent, DoTruncated, DoBad;
+ BOOLEAN DoReserved, DoUnmapUnalloc, DoUnmapAlloc;
+ BOOLEAN DoMapAlloc, DoMapUnalloc, DoFirmware2;
+ ULONG LoopCount, MdListCount, MdListSize, Used;
+ NTSTATUS Status;
+
+ /* Initialize the firmware list if we use it */
+ MmMdInitializeListHead(&FirmwareMdList);
+
+ /* Make sure we got our input parameters */
+ if (!(MemoryMap) || !(MemoryParameters))
+ {
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Either ask for firmware memory, or don't. Not neither */
+ if ((WhichTypes & ~BL_MM_INCLUDE_NO_FIRMWARE_MEMORY) &&
+ (WhichTypes & ~BL_MM_INCLUDE_ONLY_FIRMWARE_MEMORY))
+ {
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Either ask for firmware memory, or don't. Not both */
+ if ((WhichTypes & BL_MM_INCLUDE_NO_FIRMWARE_MEMORY) &&
+ (WhichTypes & BL_MM_INCLUDE_ONLY_FIRMWARE_MEMORY))
+ {
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Check which types of memory to dump */
+ DoFirmware = WhichTypes & BL_MM_INCLUDE_FIRMWARE_MEMORY;
+ DoPersistent = WhichTypes & BL_MM_INCLUDE_PERSISTENT_MEMORY;
+ DoTruncated = WhichTypes & BL_MM_INCLUDE_TRUNCATED_MEMORY;
+ DoBad = WhichTypes & BL_MM_INCLUDE_BAD_MEMORY;
+ DoReserved = WhichTypes & BL_MM_INCLUDE_RESERVED_ALLOCATED;
+ DoUnmapUnalloc = WhichTypes & BL_MM_INCLUDE_UNMAPPED_UNALLOCATED;
+ DoUnmapAlloc = WhichTypes & BL_MM_INCLUDE_UNMAPPED_ALLOCATED;
+ DoMapAlloc = WhichTypes & BL_MM_INCLUDE_MAPPED_ALLOCATED;
+ DoMapUnalloc = WhichTypes & BL_MM_INCLUDE_MAPPED_UNALLOCATED;
+ DoFirmware2 = WhichTypes & BL_MM_INCLUDE_FIRMWARE_MEMORY_2;
+
+ /* Begin the attempt loop */
+ LoopCount = 0;
+ while (TRUE)
+ {
+ /* Count how many entries we will need */
+ MdListCount = 0;
+ if (DoMapAlloc) MdListCount = MmMdCountList(&MmMdlMappedAllocated);
+ if (DoMapUnalloc) MdListCount += MmMdCountList(&MmMdlMappedUnallocated);
+ if (DoUnmapAlloc) MdListCount += MmMdCountList(&MmMdlUnmappedAllocated);
+ if (DoUnmapUnalloc) MdListCount += MmMdCountList(&MmMdlUnmappedUnallocated);
+ if (DoReserved) MdListCount += MmMdCountList(&MmMdlReservedAllocated);
+ if (DoBad) MdListCount += MmMdCountList(&MmMdlBadMemory);
+ if (DoTruncated) MdListCount += MmMdCountList(&MmMdlTruncatedMemory);
+ if (DoPersistent) MdListCount += MmMdCountList(&MmMdlPersistentMemory);
+
+ /* Plus firmware entries */
+ if (DoFirmware)
+ {
+ /* Free the previous entries, if any */
+ MmMdFreeList(&FirmwareMdList);
+
+ /* Get the firmware map */
+ Status = MmFwGetMemoryMap(&FirmwareMdList, 2);
+ if (!NT_SUCCESS(Status))
+ {
+ goto Quickie;
+ }
+
+ /* We overwrite, since this type is exclusive */
+ MdListCount = MmMdCountList(&FirmwareMdList);
+ }
+
+ /* Plus firmware entries-2 */
+ if (DoFirmware2)
+ {
+ /* Free the previous entries, if any */
+ MmMdFreeList(&FirmwareMdList);
+
+ /* Get the firmware map */
+ Status = MmFwGetMemoryMap(&FirmwareMdList, 0);
+ if (!NT_SUCCESS(Status))
+ {
+ goto Quickie;
+ }
+
+ /* We overwrite, since this type is exclusive */
+ MdListCount = MmMdCountList(&FirmwareMdList);
+ }
+
+ /* If there's no descriptors, we're done */
+ if (!MdListCount)
+ {
+ Status = STATUS_SUCCESS;
+ goto Quickie;
+ }
+
+ /* Check if the buffer we have is big enough */
+ if (MemoryParameters->BufferSize >=
+ (sizeof(BL_MEMORY_DESCRIPTOR) * MdListCount))
+ {
+ break;
+ }
+
+ /* It's not, allocate it, with a slack of 4 extra descriptors */
+ MdListSize = sizeof(BL_MEMORY_DESCRIPTOR) * (MdListCount + 4);
+
+ /* Except if we weren't asked to */
+ if (!(Flags & BL_MM_ADD_DESCRIPTOR_ALLOCATE_FLAG))
+ {
+ MemoryParameters->BufferSize = MdListSize;
+ Status = STATUS_BUFFER_TOO_SMALL;
+ goto Quickie;
+ }
+
+ /* Has it been less than 4 times we've tried this? */
+ if (++LoopCount <= 4)
+ {
+ /* Free the previous attempt, if any */
+ if (MemoryParameters->BufferSize)
+ {
+ BlMmFreeHeap(MemoryParameters->Buffer);
+ }
+
+ /* Allocate a new buffer */
+ MemoryParameters->BufferSize = MdListSize;
+ MemoryParameters->Buffer = BlMmAllocateHeap(MdListSize);
+ if (MemoryParameters->Buffer)
+ {
+ /* Try again */
+ continue;
+ }
+ }
+
+ /* If we got here, we're out of memory after 4 attempts */
+ Status = STATUS_NO_MEMORY;
+ goto Quickie;
+ }
+
+ /* We should have a buffer by now... */
+ if (MemoryParameters->Buffer)
+ {
+ /* Zero it out */
+ RtlZeroMemory(MemoryParameters->Buffer,
+ MdListCount * sizeof(BL_MEMORY_DESCRIPTOR));
+ }
+
+ /* Initialize our list of descriptors */
+ MmMdInitializeList(&FullMdList, 0, MemoryMap);
+ Used = 0;
+
+ /* Handle mapped, allocated */
+ if (DoMapAlloc)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlMappedAllocated,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle mapped, unallocated */
+ if (DoMapUnalloc)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlMappedUnallocated,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle unmapped, allocated */
+ if (DoUnmapAlloc)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlUnmappedAllocated,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle unmapped, unallocated */
+ if (DoUnmapUnalloc)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlUnmappedUnallocated,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle reserved, allocated */
+ if (DoReserved)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlReservedAllocated,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle bad */
+ if (DoBad)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlBadMemory,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle truncated */
+ if (DoTruncated)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlTruncatedMemory,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle persistent */
+ if (DoPersistent)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &MmMdlPersistentMemory,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle firmware */
+ if (DoFirmware)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &FirmwareMdList,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Handle firmware2 */
+ if (DoFirmware2)
+ {
+ Status = MmMdCopyList(&FullMdList,
+ &FirmwareMdList,
+ MemoryParameters->Buffer,
+ &Used,
+ MdListCount,
+ Flags);
+ }
+
+ /* Add up the final size */
+ Status = RtlULongLongToULong(Used * sizeof(BL_MEMORY_DESCRIPTOR),
+ &MemoryParameters->ActualSize);
+
+Quickie:
+ MmMdFreeList(&FirmwareMdList);
+ return Status;
+}
projects / reactos.git / blobdiff