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hypervisor: kvm: add two safety comments

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Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2022-11-16 21:48:29 +00:00 committed by Liu Wei
parent d272113d0c
commit 6c89c541da
1 changed files with 2 additions and 0 deletions
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2
hypervisor/src/kvm/mod.rs
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@ -2066,6 +2066,7 @@ impl cpu::Vcpu for KvmVcpu {
#[cfg(feature = "tdx")]
fn get_tdx_exit_details(&mut self) -> cpu::Result<TdxExitDetails> {
let kvm_run = self.fd.get_kvm_run();
// SAFETY: accessing a union field in a valid structure
let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
tdx_vmcall.status_code = TDG_VP_VMCALL_INVALID_OPERAND;
@ -2089,6 +2090,7 @@ impl cpu::Vcpu for KvmVcpu {
#[cfg(feature = "tdx")]
fn set_tdx_status(&mut self, status: TdxExitStatus) {
let kvm_run = self.fd.get_kvm_run();
// SAFETY: accessing a union field in a valid structure
let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
tdx_vmcall.status_code = match status {