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Decouple processor block initialization from AllocateProcessorStructures
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This commit is contained in:
Aiken Harris
2026-05-14 11:07:42 +02:00
parent 908bc87b06
commit 9185ceade6
2 changed files with 2 additions and 18 deletions
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3
xtoskrnl/includes/mm/kpool.hh
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@@ -20,8 +20,7 @@ namespace MM
public: public:
STATIC XTAPI XTSTATUS AllocateKernelStack(OUT PVOID *Stack, STATIC XTAPI XTSTATUS AllocateKernelStack(OUT PVOID *Stack,
IN ULONG StackSize); IN ULONG StackSize);
STATIC XTAPI XTSTATUS AllocateProcessorStructures(IN ULONG CpuNumber, STATIC XTAPI XTSTATUS AllocateProcessorStructures(OUT PVOID *StructuresData);
OUT PVOID *StructuresData);
STATIC XTAPI VOID FreeKernelStack(IN PVOID Stack, STATIC XTAPI VOID FreeKernelStack(IN PVOID Stack,
IN ULONG StackSize); IN ULONG StackSize);
STATIC XTAPI VOID FreeProcessorStructures(IN PVOID StructuresData); STATIC XTAPI VOID FreeProcessorStructures(IN PVOID StructuresData);

17
xtoskrnl/mm/kpool.cc
View File

@@ -95,9 +95,6 @@ MM::KernelPool::AllocateKernelStack(OUT PVOID *Stack,
/** /**
* Allocates a buffer for structures needed by a processor and assigns it to a corresponding CPU. * Allocates a buffer for structures needed by a processor and assigns it to a corresponding CPU.
* *
* @param CpuNumber
* Specifies the zero-indexed CPU number as an owner of the allocated structures.
*
* @param StructuresData * @param StructuresData
* Supplies a pointer to the memory area that will contain the allocated buffer. * Supplies a pointer to the memory area that will contain the allocated buffer.
* *
@@ -107,12 +104,9 @@ MM::KernelPool::AllocateKernelStack(OUT PVOID *Stack,
*/ */
XTAPI XTAPI
XTSTATUS XTSTATUS
MM::KernelPool::AllocateProcessorStructures(IN ULONG CpuNumber, MM::KernelPool::AllocateProcessorStructures(OUT PVOID *StructuresData)
OUT PVOID *StructuresData)
{ {
PKPROCESSOR_BLOCK ProcessorBlock;
PVOID ProcessorStructures; PVOID ProcessorStructures;
UINT_PTR Address;
XTSTATUS Status; XTSTATUS Status;
/* Assign memory for processor structures */ /* Assign memory for processor structures */
@@ -126,15 +120,6 @@ MM::KernelPool::AllocateProcessorStructures(IN ULONG CpuNumber,
/* Make sure all structures are zeroed */ /* Make sure all structures are zeroed */
RTL::Memory::ZeroMemory(ProcessorStructures, KPROCESSOR_STRUCTURES_SIZE); RTL::Memory::ZeroMemory(ProcessorStructures, KPROCESSOR_STRUCTURES_SIZE);
/* Align address to page size boundary and find a space for processor block */
Address = ROUND_UP((UINT_PTR)ProcessorStructures, MM_PAGE_SIZE);
ProcessorBlock = (PKPROCESSOR_BLOCK)((PUCHAR)Address +
(KERNEL_STACKS * KERNEL_STACK_SIZE) +
(GDT_ENTRIES * sizeof(KGDTENTRY)));
/* Store processor number in the processor block */
ProcessorBlock->CpuNumber = CpuNumber;
/* Return pointer to the processor structures */ /* Return pointer to the processor structures */
*StructuresData = ProcessorStructures; *StructuresData = ProcessorStructures;