[Qemu-devel] [PATCH 2/2] target/i386: kvm: Init nested-state in case of vCPU exposed with SVM

[Liran Alon <liran.alon@oracle.com>]

Even though current most upstream kernel does not support save/restore
of nested-state in case of AMD SVM, prepare QEMU code to init
relevant nested-state struct fields.

Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Reviewed-by: Karl Heubaum <karl.heubaum@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
---
 target/i386/kvm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index c2bae6a3023a..be192e54a80b 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -1714,13 +1714,14 @@ int kvm_arch_init_vcpu(CPUState *cs)
 
         env->nested_state->size = max_nested_state_len;
 
-        if (IS_INTEL_CPU(env)) {
+        if (cpu_has_vmx(env)) {
             struct kvm_vmx_nested_state_hdr *vmx_hdr =
                 &env->nested_state->hdr.vmx;
-
             env->nested_state->format = KVM_STATE_NESTED_FORMAT_VMX;
             vmx_hdr->vmxon_pa = -1ull;
             vmx_hdr->vmcs12_pa = -1ull;
+        } else if (cpu_has_svm(env)) {
+            env->nested_state->format = KVM_STATE_NESTED_FORMAT_SVM;
         }
     }
 
-- 
2.20.1