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Correct kernel stack base calculation for downward growing stacks
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This commit is contained in:
Aiken Harris
2026-03-31 18:59:59 +02:00
parent 987b8f45d7
commit d834b7e0c8
2 changed files with 6 additions and 7 deletions
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7
xtoskrnl/ar/amd64/procsup.cc
View File

@@ -159,9 +159,9 @@ AR::ProcSup::InitializeProcessor(IN PVOID ProcessorStructures)
Gdt = InitialGdt; Gdt = InitialGdt;
Idt = InitialIdt; Idt = InitialIdt;
Tss = &InitialTss; Tss = &InitialTss;
KernelBootStack = &BootStack; KernelBootStack = (PVOID)((ULONG_PTR)&BootStack + KERNEL_STACK_SIZE);
KernelFaultStack = &FaultStack; KernelFaultStack = (PVOID)((ULONG_PTR)&FaultStack + KERNEL_STACK_SIZE);
KernelNmiStack = &NmiStack; KernelNmiStack = (PVOID)((ULONG_PTR)&NmiStack + KERNEL_STACK_SIZE);
ProcessorBlock = &InitialProcessorBlock; ProcessorBlock = &InitialProcessorBlock;
} }
@@ -510,7 +510,6 @@ AR::ProcSup::InitializeTss(IN PKPROCESSOR_BLOCK ProcessorBlock,
ProcessorBlock->TssBase->Ist[KIDT_IST_PANIC] = (ULONG_PTR)KernelFaultStack; ProcessorBlock->TssBase->Ist[KIDT_IST_PANIC] = (ULONG_PTR)KernelFaultStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_MCA] = (ULONG_PTR)KernelFaultStack; ProcessorBlock->TssBase->Ist[KIDT_IST_MCA] = (ULONG_PTR)KernelFaultStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_NMI] = (ULONG_PTR)KernelNmiStack; ProcessorBlock->TssBase->Ist[KIDT_IST_NMI] = (ULONG_PTR)KernelNmiStack;
} }
/** /**

6
xtoskrnl/ar/i686/procsup.cc
View File

@@ -154,9 +154,9 @@ AR::ProcSup::InitializeProcessor(IN PVOID ProcessorStructures)
Gdt = InitialGdt; Gdt = InitialGdt;
Idt = InitialIdt; Idt = InitialIdt;
Tss = &InitialTss; Tss = &InitialTss;
KernelBootStack = &BootStack; KernelBootStack = (PVOID)((ULONG_PTR)&BootStack + KERNEL_STACK_SIZE);
KernelFaultStack = &FaultStack; KernelFaultStack = (PVOID)((ULONG_PTR)&FaultStack + KERNEL_STACK_SIZE);
KernelNmiStack = &NmiStack; KernelNmiStack = (PVOID)((ULONG_PTR)&NmiStack + KERNEL_STACK_SIZE);
ProcessorBlock = &InitialProcessorBlock; ProcessorBlock = &InitialProcessorBlock;
} }