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Cleanup hardware allocation memory pool related code

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This commit is contained in:
Rafal Kupiec
2024-06-02 17:29:31 +02:00
parent abb65b99fe
commit 6176ca38a8
8 changed files with 55 additions and 55 deletions
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12
xtoskrnl/includes/globals.h
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@@ -69,16 +69,16 @@ EXTERN ULONG MmPageMapLevel;
/* Processor structures data (THIS IS A TEMPORARY HACK) */
EXTERN UCHAR MmProcessorStructuresData[MAXIMUM_PROCESSORS][KPROCESSOR_STRUCTURES_SIZE];
/* Allocation descriptors dedicated for HAL */
EXTERN LOADER_MEMORY_DESCRIPTOR MmpHalAllocationDescriptors[MM_HAL_ALLOCATION_DESCRIPTORS];
/* Allocation descriptors dedicated for hardware layer */
EXTERN LOADER_MEMORY_DESCRIPTOR MmpHardwareAllocationDescriptors[MM_HARDWARE_ALLOCATION_DESCRIPTORS];
/* Live address of kernel HAL heap */
EXTERN PVOID MmpHalHeapStart;
/* Live address of kernel's hardware heap */
EXTERN PVOID MmpHardwareHeapStart;
/* Architecture-specific memory extension */
EXTERN BOOLEAN MmpMemoryExtension;
/* Number of used HAL allocation descriptors */
EXTERN ULONG MmpUsedHalAllocationDescriptors;
/* Number of used hardware allocation descriptors */
EXTERN ULONG MmpUsedHardwareAllocationDescriptors;
#endif /* __XTOSKRNL_GLOBALS_H */

12
xtoskrnl/mm/globals.c
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@@ -30,14 +30,14 @@ ULONG MmPageMapLevel;
/* Processor structures data (THIS IS A TEMPORARY HACK) */
UCHAR MmProcessorStructuresData[MAXIMUM_PROCESSORS][KPROCESSOR_STRUCTURES_SIZE] = {0};
/* Allocation descriptors dedicated for HAL */
LOADER_MEMORY_DESCRIPTOR MmpHalAllocationDescriptors[MM_HAL_ALLOCATION_DESCRIPTORS];
/* Allocation descriptors dedicated for hardware layer */
LOADER_MEMORY_DESCRIPTOR MmpHardwareAllocationDescriptors[MM_HARDWARE_ALLOCATION_DESCRIPTORS];
/* Live address of kernel HAL heap */
PVOID MmpHalHeapStart = MM_HAL_HEAP_START_ADDRESS;
/* Live address of kernel's hardware heap */
PVOID MmpHardwareHeapStart = MM_HARDWARE_HEAP_START_ADDRESS;
/* Architecture-specific memory extension */
BOOLEAN MmpMemoryExtension;
/* Number of used HAL allocation descriptors */
ULONG MmpUsedHalAllocationDescriptors = 0;
/* Number of used hardware allocation descriptors */
ULONG MmpUsedHardwareAllocationDescriptors = 0;

42
xtoskrnl/mm/hlpool.c
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@@ -31,7 +31,7 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
IN BOOLEAN Aligned,
OUT PULONG_PTR Buffer)
{
PLOADER_MEMORY_DESCRIPTOR Descriptor, ExtraDescriptor, HalDescriptor;
PLOADER_MEMORY_DESCRIPTOR Descriptor, ExtraDescriptor, HardwareDescriptor;
PFN_NUMBER Alignment, MaxPage;
ULONGLONG PhysicalAddress;
PLIST_ENTRY ListEntry;
@@ -43,7 +43,7 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
MaxPage = MM_MAXIMUM_PHYSICAL_ADDRESS >> MM_PAGE_SHIFT;
/* Make sure there are at least 2 descriptors available */
if((MmpUsedHalAllocationDescriptors + 2) > MM_HAL_ALLOCATION_DESCRIPTORS)
if((MmpUsedHardwareAllocationDescriptors + 2) > MM_HARDWARE_ALLOCATION_DESCRIPTORS)
{
/* Not enough descriptors, return error */
return STATUS_INSUFFICIENT_RESOURCES;
@@ -84,13 +84,13 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
}
/* Allocate new descriptor */
HalDescriptor = &MmpHalAllocationDescriptors[MmpUsedHalAllocationDescriptors];
HalDescriptor->BasePage = Descriptor->BasePage + Alignment;
HalDescriptor->MemoryType = LoaderHALCachedMemory;
HalDescriptor->PageCount = PageCount;
HardwareDescriptor = &MmpHardwareAllocationDescriptors[MmpUsedHardwareAllocationDescriptors];
HardwareDescriptor->BasePage = Descriptor->BasePage + Alignment;
HardwareDescriptor->MemoryType = LoaderHardwareCachedMemory;
HardwareDescriptor->PageCount = PageCount;
/* Update HAL allocation descriptors count */
MmpUsedHalAllocationDescriptors++;
/* Update hardware allocation descriptors count */
MmpUsedHardwareAllocationDescriptors++;
/* Check if alignment was done */
if(Alignment)
@@ -99,13 +99,13 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
if(Descriptor->PageCount > (PageCount + Alignment))
{
/* Initialize extra descriptor */
ExtraDescriptor = &MmpHalAllocationDescriptors[MmpUsedHalAllocationDescriptors];
ExtraDescriptor = &MmpHardwareAllocationDescriptors[MmpUsedHardwareAllocationDescriptors];
ExtraDescriptor->BasePage = Descriptor->BasePage + Alignment + (ULONG)PageCount;
ExtraDescriptor->MemoryType = LoaderFree;
ExtraDescriptor->PageCount = Descriptor->PageCount - (Alignment + (ULONG)PageCount);
/* Update HAL allocation descriptors count */
MmpUsedHalAllocationDescriptors++;
/* Update hardware allocation descriptors count */
MmpUsedHardwareAllocationDescriptors++;
/* Insert extra descriptor in the list */
RtlInsertHeadList(&Descriptor->ListEntry, &ExtraDescriptor->ListEntry);
@@ -115,7 +115,7 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
Descriptor->PageCount = Alignment;
/* Insert new descriptor in the list */
RtlInsertHeadList(&Descriptor->ListEntry, &HalDescriptor->ListEntry);
RtlInsertHeadList(&Descriptor->ListEntry, &HardwareDescriptor->ListEntry);
}
else
{
@@ -124,7 +124,7 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
Descriptor->PageCount -= (ULONG)PageCount;
/* Insert new descriptor in the list */
RtlInsertTailList(&Descriptor->ListEntry, &HalDescriptor->ListEntry);
RtlInsertTailList(&Descriptor->ListEntry, &HardwareDescriptor->ListEntry);
/* Check if source descriptor is fully consumed */
if(Descriptor->PageCount == 0)
@@ -140,7 +140,7 @@ MmAllocateHardwareMemory(IN PFN_NUMBER PageCount,
}
/**
* Maps physical address to the virtual memory area used by kernel hardware layer (HAL).
* Maps physical address to the virtual memory area used by kernel hardware layer.
*
* @param PhysicalAddress
* Supplies the physical address to map.
@@ -170,7 +170,7 @@ MmMapHardwareMemory(IN PHYSICAL_ADDRESS PhysicalAddress,
PHARDWARE_PTE PtePointer;
/* Initialize variables */
BaseAddress = MmpHalHeapStart;
BaseAddress = MmpHardwareHeapStart;
MappedPages = 0;
ReturnAddress = BaseAddress;
*VirtualAddress = NULL;
@@ -206,10 +206,10 @@ MmMapHardwareMemory(IN PHYSICAL_ADDRESS PhysicalAddress,
ReturnAddress = (PVOID)(ULONG_PTR)(BaseAddress + PAGE_OFFSET(PhysicalAddress.LowPart));
/* Check if base address starts at the beginning of the heap */
if(BaseAddress == MmpHalHeapStart)
if(BaseAddress == MmpHardwareHeapStart)
{
/* Move heap beyond base address */
MmpHalHeapStart = (PVOID)((ULONG_PTR)BaseAddress + ((ULONG_PTR)PageCount << MM_PAGE_SHIFT));
MmpHardwareHeapStart = (PVOID)((ULONG_PTR)BaseAddress + ((ULONG_PTR)PageCount << MM_PAGE_SHIFT));
}
/* Iterate through mapped pages */
@@ -339,8 +339,8 @@ MmUnmapHardwareMemory(IN PVOID VirtualAddress,
PHARDWARE_PTE PtePointer;
PFN_NUMBER Page;
/* Check if address is valid HAL memory */
if(VirtualAddress < (PVOID)MM_HAL_VA_START)
/* Check if address is valid hardware memory */
if(VirtualAddress < (PVOID)MM_HARDWARE_VA_START)
{
/* Invalid address, return error */
return STATUS_INVALID_PARAMETER;
@@ -372,10 +372,10 @@ MmUnmapHardwareMemory(IN PVOID VirtualAddress,
}
/* Check if heap can be reused */
if(MmpHalHeapStart > VirtualAddress)
if(MmpHardwareHeapStart > VirtualAddress)
{
/* Free VA space */
MmpHalHeapStart = VirtualAddress;
MmpHardwareHeapStart = VirtualAddress;
}
/* Return success */

2
xtoskrnl/mm/init.c
View File

@@ -65,7 +65,7 @@ MmpScanMemoryDescriptors(VOID)
/* Check if memory type is invisible or cached */
if(MmpVerifyMemoryTypeInvisible(MemoryDescriptor->MemoryType) ||
(MemoryDescriptor->MemoryType == LoaderHALCachedMemory))
(MemoryDescriptor->MemoryType == LoaderHardwareCachedMemory))
{
/* Skip this mapping */
MemoryMappings = MemoryMappings->Flink;