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Add checks for invalid addresses

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This commit is contained in:
Alex
2023-05-08 05:27:16 +03:00
parent e57195ef51
commit c9e2d99570
2 changed files with 13 additions and 8 deletions
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15
Core/Memory/Memory.cpp
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@ -243,10 +243,13 @@ NIF void MapKernel(PageTable *PT, BootInfo *Info)
debug("Base kernel map address: %#lx", BaseKernelMapAddress);
/* Kernel file */
for (k = KernelFileStart; k < KernelFileEnd; k += PAGE_SIZE)
if (KernelFileStart != 0)
{
va.Map((void *)k, (void *)k, PTFlag::G);
KernelAllocator.ReservePage((void *)k);
for (k = KernelFileStart; k < KernelFileEnd; k += PAGE_SIZE)
{
va.Map((void *)k, (void *)k, PTFlag::G);
KernelAllocator.ReservePage((void *)k);
}
}
#ifdef DEBUG
@ -389,11 +392,7 @@ NIF void InitializeMemoryManagement(BootInfo *Info)
#ifdef DEBUG
tracepagetable(KernelPageTable);
#endif
#if defined(a86)
asmv("mov %0, %%cr3" ::"r"(KernelPageTable));
#elif defined(aa64)
asmv("msr ttbr0_el1, %0" ::"r"(KernelPageTable));
#endif
CPU::PageTable(KernelPageTable);
debug("Page table updated.");
if (strstr(Info->Kernel.CommandLine, "xallocv1"))
{