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[RFC PATCH v4 29/36] i386/tdx: Don't allow system reset for TDX VMs
From: |
Xiaoyao Li |
Subject: |
[RFC PATCH v4 29/36] i386/tdx: Don't allow system reset for TDX VMs |
Date: |
Thu, 12 May 2022 11:17:56 +0800 |
TDX CPU state is protected and thus vcpu state cann't be reset by VMM.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
target/i386/kvm/kvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index c51125ab200f..9a1e1dab938f 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -5349,7 +5349,7 @@ bool kvm_has_waitpkg(void)
bool kvm_arch_cpu_check_are_resettable(void)
{
- return !sev_es_enabled();
+ return !sev_es_enabled() && !is_tdx_vm();
}
#define ARCH_REQ_XCOMP_GUEST_PERM 0x1025
--
2.27.0
- Re: [RFC PATCH v4 24/36] i386/tdx: Add TDVF memory via KVM_TDX_INIT_MEM_REGION, (continued)
- [RFC PATCH v4 25/36] i386/tdx: Call KVM_TDX_INIT_VCPU to initialize TDX vcpu, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 23/36] i386/tdx: Setup the TD HOB list, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 27/36] i386/tdx: Disable SMM for TDX VMs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 29/36] i386/tdx: Don't allow system reset for TDX VMs,
Xiaoyao Li <=
- [RFC PATCH v4 30/36] hw/i386: add eoi_intercept_unsupported member to X86MachineState, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 26/36] i386/tdx: Finalize TDX VM, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 28/36] i386/tdx: Disable PIC for TDX VMs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 33/36] i386/tdx: Only configure MSR_IA32_UCODE_REV in kvm_init_msrs() for TDs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 35/36] i386/tdx: Don't get/put guest state for TDX VMs, Xiaoyao Li, 2022/05/11
- [RFC PATCH v4 32/36] i386/tdx: Don't synchronize guest tsc for TDs, Xiaoyao Li, 2022/05/11