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hypervisor: kvm: add two safety comments
Signed-off-by: Wei Liu <liuwe@microsoft.com>
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@ -2066,6 +2066,7 @@ impl cpu::Vcpu for KvmVcpu {
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#[cfg(feature = "tdx")]
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#[cfg(feature = "tdx")]
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fn get_tdx_exit_details(&mut self) -> cpu::Result<TdxExitDetails> {
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fn get_tdx_exit_details(&mut self) -> cpu::Result<TdxExitDetails> {
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let kvm_run = self.fd.get_kvm_run();
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let kvm_run = self.fd.get_kvm_run();
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// SAFETY: accessing a union field in a valid structure
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let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
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let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
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tdx_vmcall.status_code = TDG_VP_VMCALL_INVALID_OPERAND;
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tdx_vmcall.status_code = TDG_VP_VMCALL_INVALID_OPERAND;
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@ -2089,6 +2090,7 @@ impl cpu::Vcpu for KvmVcpu {
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#[cfg(feature = "tdx")]
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#[cfg(feature = "tdx")]
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fn set_tdx_status(&mut self, status: TdxExitStatus) {
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fn set_tdx_status(&mut self, status: TdxExitStatus) {
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let kvm_run = self.fd.get_kvm_run();
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let kvm_run = self.fd.get_kvm_run();
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// SAFETY: accessing a union field in a valid structure
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let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
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let tdx_vmcall = unsafe { &mut kvm_run.__bindgen_anon_1.tdx.u.vmcall };
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tdx_vmcall.status_code = match status {
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tdx_vmcall.status_code = match status {
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