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If PG and LME are set, then LMA must also be set

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This commit is contained in:
Bruce Leidl 2019-09-11 11:28:32 -04:00
parent 3679bfd03a
commit b39bb0e937
1 changed files with 2 additions and 0 deletions
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rust/src/vm/setup/cpu.rs
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@ -115,6 +115,7 @@ const X86_CR0_PG: u64 = 0x80000000;
const X86_CR4_PAE: u64 = 0x20; const X86_CR4_PAE: u64 = 0x20;
const EFER_LME: u64 = 0x100; const EFER_LME: u64 = 0x100;
const EFER_LMA: u64 = (1 << 10);
fn setup_boot_pagetables(memory: &GuestRam) -> Result<()> { fn setup_boot_pagetables(memory: &GuestRam) -> Result<()> {
memory.write_int::<u64>(BOOT_PML4, BOOT_PDPTE | 0x3)?; memory.write_int::<u64>(BOOT_PML4, BOOT_PDPTE | 0x3)?;
@ -172,6 +173,7 @@ pub fn setup_pm_sregs(vcpu: &KvmVcpu, memory: &GuestRam) -> Result<()> {
regs.cr3 = BOOT_PML4; regs.cr3 = BOOT_PML4;
regs.cr4 |= X86_CR4_PAE; regs.cr4 |= X86_CR4_PAE;
regs.cr0 |= X86_CR0_PG; regs.cr0 |= X86_CR0_PG;
regs.efer |= EFER_LMA;
vcpu.set_sregs(&regs)?; vcpu.set_sregs(&regs)?;
Ok(()) Ok(())