diff options
Diffstat (limited to 'x86_64/src/regs.rs')
| -rw-r--r-- | x86_64/src/regs.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/x86_64/src/regs.rs b/x86_64/src/regs.rs index aac058e..85d822a 100644 --- a/x86_64/src/regs.rs +++ b/x86_64/src/regs.rs @@ -209,6 +209,7 @@ const X86_CR0_PG: u64 = 0x80000000; const X86_CR4_PAE: u64 = 0x20; const EFER_LME: u64 = 0x100; +const EFER_LMA: u64 = 0x400; const BOOT_GDT_OFFSET: u64 = 0x500; const BOOT_IDT_OFFSET: u64 = 0x520; @@ -292,6 +293,7 @@ fn setup_page_tables(mem: &GuestMemory, sregs: &mut kvm_sregs) -> Result<()> { sregs.cr3 = boot_pml4_addr.offset() as u64; sregs.cr4 |= X86_CR4_PAE; sregs.cr0 |= X86_CR0_PG; + sregs.efer |= EFER_LMA; // Long mode is active. Must be auto-enabled with CR0_PG. Ok(()) } |