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Add write_cr3()

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This commit is contained in:
Josh Holtrop 2022-03-18 16:40:46 -04:00
parent ef01239468
commit 9e3d9b18ea
1 changed files with 5 additions and 0 deletions
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5
src/common/hos/cpu.d
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@ -15,6 +15,11 @@ ulong read_cr3()
return __asm!ulong("mov %cr3, %rax", "={rax}"); return __asm!ulong("mov %cr3, %rax", "={rax}");
} }
void write_cr3(ulong v)
{
__asm("mov $0, %cr3", "r", v);
}
ulong read_cr4() ulong read_cr4()
{ {
return __asm!ulong("mov %cr4, %rax", "={rax}"); return __asm!ulong("mov %cr4, %rax", "={rax}");