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add more cpuid

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This commit is contained in:
Masato Imai
2025-05-15 17:42:18 +00:00
parent c186f86c81
commit 086ede1e43
1 changed files with 15 additions and 0 deletions
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15
src/vmm/cpuid.rs
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@ -9,6 +9,21 @@ pub fn handle_cpuid_exit(vcpu: &mut VCpu) {
let vendor: &[u8; 12] = b"NelogikaNelo";
let vendor = unsafe { core::mem::transmute::<&[u8; 12], &[u32; 3]>(vendor) };
match VmxLeaf::from(regs.rax) {
VmxLeaf::EXTENDED_PROCESSOR_SIGNATURE => {
info!("CPUID extended processor signature");
let signature = cpuid!(0x80000001, 0);
regs.rax = 0x00000000;
regs.rbx = 0x00000000;
regs.rcx = signature.ecx as u64;
regs.rdx = signature.edx as u64;
}
VmxLeaf::EXTENDED_FUNCTION => {
info!("CPUID extended function");
regs.rax = 0x80000000 + 1;
regs.rbx = 0x00000000;
regs.rcx = 0x00000000;
regs.rdx = 0x00000000;
}
VmxLeaf::MAXIMUM_INPUT => {
info!("CPUID max input");
regs.rax = 0x20;