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KPT global variable

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This commit is contained in:
Alex
2022-12-06 09:30:09 +02:00
parent 3454c9692f
commit f86777a856
4 changed files with 145 additions and 6 deletions
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6
Core/Memory/Memory.cpp
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@ -11,6 +11,7 @@ using namespace Memory;
Physical KernelAllocator;
PageTable4 *KernelPageTable = nullptr;
PageTable4 *UserspaceKernelOnlyPageTable = nullptr;
void *KPT = nullptr;
static MemoryAllocatorType AllocatorType = MemoryAllocatorType::None;
Xalloc::AllocatorV1 *XallocV1Allocator = nullptr;
@ -212,11 +213,12 @@ __no_instrument_function void InitializeMemoryManagement(BootInfo *Info)
tracepagetable(KernelPageTable);
debug("Userspace:");
tracepagetable(UserspaceKernelOnlyPageTable);
KPT = KernelPageTable;
#endif
#if defined(__amd64__) || defined(__i386__)
asmv("mov %0, %%cr3" ::"r"(KernelPageTable));
asmv("mov %0, %%cr3" ::"r"(KPT));
#elif defined(__aarch64__)
asmv("msr ttbr0_el1, %0" ::"r"(KernelPageTable));
asmv("msr ttbr0_el1, %0" ::"r"(KPT));
#endif
debug("Page table updated.");
if (strstr(Info->Kernel.CommandLine, "xallocv1"))