eersoy93/exectos
1
0
Fork 0
forked from xt-sys/exectos
Code Pull Requests Activity

Use correct stack when using preallocated processor structures

Browse Source
This commit is contained in:
Rafal Kupiec
2024-05-08 15:57:24 +02:00
parent 3c3a756771
commit 38b0b2ac7d
9 changed files with 47 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
xtoskrnl/ar/amd64/procsup.c
View File

@@ -53,8 +53,8 @@ ArInitializeProcessor(IN PVOID ProcessorStructures)
/* Initialize GDT, IDT and TSS */
ArpInitializeGdt(ProcessorBlock);
ArpInitializeTss(ProcessorBlock);
ArpInitializeIdt(ProcessorBlock);
ArpInitializeTss(ProcessorBlock, KernelBootStack, KernelFaultStack);
/* Set GDT and IDT descriptors */
GdtDescriptor.Base = Gdt;
@@ -313,9 +313,9 @@ ArpInitializeProcessorBlock(OUT PKPROCESSOR_BLOCK ProcessorBlock,
ProcessorBlock->Prcb.DpcStack = DpcStack;
/* Setup processor control block */
ProcessorBlock->Prcb.Number = 0;
ProcessorBlock->Prcb.SetMember = 1ULL;
ProcessorBlock->Prcb.MultiThreadProcessorSet = 1ULL;
ProcessorBlock->Prcb.CpuNumber = ProcessorBlock->CpuNumber;
ProcessorBlock->Prcb.SetMember = 1ULL << ProcessorBlock->CpuNumber;
ProcessorBlock->Prcb.MultiThreadProcessorSet = 1ULL << ProcessorBlock->CpuNumber;
/* Clear DR6 and DR7 registers */
ProcessorBlock->Prcb.ProcessorState.SpecialRegisters.KernelDr6 = 0;
@@ -488,16 +488,18 @@ ArpInitializeSegments(VOID)
*/
XTAPI
VOID
ArpInitializeTss(IN PKPROCESSOR_BLOCK ProcessorBlock)
ArpInitializeTss(IN PKPROCESSOR_BLOCK ProcessorBlock,
IN PVOID KernelBootStack,
IN PVOID KernelFaultStack)
{
/* Fill TSS with zeroes */
RtlZeroMemory(ProcessorBlock->TssBase, sizeof(KTSS));
/* Setup I/O map and stacks for ring0 & traps */
ProcessorBlock->TssBase->IoMapBase = sizeof(KTSS);
ProcessorBlock->TssBase->Rsp0 = (ULONG_PTR)&ArKernelBootStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_PANIC] = (ULONG_PTR)&ArKernelFaultStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_MCA] = (ULONG_PTR)&ArKernelFaultStack;
ProcessorBlock->TssBase->Rsp0 = (ULONG_PTR)KernelBootStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_PANIC] = (ULONG_PTR)KernelFaultStack;
ProcessorBlock->TssBase->Ist[KIDT_IST_MCA] = (ULONG_PTR)KernelFaultStack;
}
/**