diff mbox series

[RFC,v4,29/36] i386/tdx: Don't allow system reset for TDX VMs

Message ID 20220512031803.3315890-30-xiaoyao.li@intel.com (mailing list archive)
State New, archived
Headers show
Series TDX QEMU support | expand

Commit Message

Xiaoyao Li May 12, 2022, 3:17 a.m. UTC 
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(-)

Comments

Gerd Hoffmann May 24, 2022, 8:01 a.m. UTC | #1 
On Thu, May 12, 2022 at 11:17:56AM +0800, Xiaoyao Li wrote:
> TDX CPU state is protected and thus vcpu state cann't be reset by VMM.
> 
> Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
diff mbox series

Patch

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