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hypervisor: mshv: Add support to handle unaccepted GPA

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Unaccepted GPA is usually thrown by Microsoft hypervisor in case of
mismatch between GPA and GVA mappings. This is a fatal message from the
hypervisor perspective so we would need to error out from the vcpu run
loop. Along with add some debug message to identify the broken mapping
between GVA and GPA.

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Jinank Jain 2024-02-05 16:34:22 +05:30 committed by Bo Chen
parent 7633d47293
commit 50241f94d9
1 changed files with 11 additions and 0 deletions
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11
hypervisor/src/mshv/mod.rs
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@ -597,6 +597,17 @@ impl cpu::Vcpu for MshvVcpu {
Ok(cpu::VmExit::Ignore)
}
hv_message_type_HVMSG_UNACCEPTED_GPA => {
let info = x.to_memory_info().unwrap();
let gva = info.guest_virtual_address;
let gpa = info.guest_physical_address;
Err(cpu::HypervisorCpuError::RunVcpu(anyhow!(
"Unhandled VCPU exit: Unaccepted GPA({:x}) found at GVA({:x})",
gpa,
gva,
)))
}
hv_message_type_HVMSG_X64_CPUID_INTERCEPT => {
let info = x.to_cpuid_info().unwrap();
debug!("cpuid eax: {:x}", { info.rax });