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Add write_cr4()

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This commit is contained in:
Josh Holtrop 2022-11-03 23:31:55 -04:00
parent 1f2a2bea48
commit 2a7c783bba
1 changed files with 5 additions and 0 deletions
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5
src/hulk/cpu.d
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@ -60,6 +60,11 @@ ulong read_cr4()
return __asm!ulong("mov %cr4, %rax", "={rax}"); return __asm!ulong("mov %cr4, %rax", "={rax}");
} }
void write_cr4(ulong v)
{
__asm("mov $0, %cr4", "r", v);
}
ulong rdmsr(uint msr) ulong rdmsr(uint msr)
{ {
return __asm!ulong(` return __asm!ulong(`