Re: [PATCH v6 5/6] kvm/i386: Use a per-VM check for SMM capability

[Venu Busireddy]

On 2021-01-26 11:36:48 -0600, Tom Lendacky wrote:
> From: Tom Lendacky 
> 
> SMM is not currently supported for an SEV-ES guest by KVM. Change the SMM
> capability check from a KVM-wide check to a per-VM check in order to have
> a finer-grained SMM capability check.
> 
> Cc: Paolo Bonzini 
> Cc: Richard Henderson 
> Cc: Eduardo Habkost 
> Suggested-by: Sean Christopherson 
> Signed-off-by: Tom Lendacky 

Reviewed-by: Venu Busireddy 

> ---
>  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 bb6bfc19de..37fca43cd9 100644
> --- a/target/i386/kvm/kvm.c
> +++ b/target/i386/kvm/kvm.c
> @@ -135,7 +135,7 @@ int kvm_has_pit_state2(void)
>  
>  bool kvm_has_smm(void)
>  {
> -return kvm_check_extension(kvm_state, KVM_CAP_X86_SMM);
> +return kvm_vm_check_extension(kvm_state, KVM_CAP_X86_SMM);
>  }
>  
>  bool kvm_has_adjust_clock_stable(void)
> -- 
> 2.30.0
> 

[PATCH v6 5/6] kvm/i386: Use a per-VM check for SMM capability

[Tom Lendacky]

From: Tom Lendacky 

SMM is not currently supported for an SEV-ES guest by KVM. Change the SMM
capability check from a KVM-wide check to a per-VM check in order to have
a finer-grained SMM capability check.

Cc: Paolo Bonzini 
Cc: Richard Henderson 
Cc: Eduardo Habkost 
Suggested-by: Sean Christopherson 
Signed-off-by: Tom Lendacky 
---
 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 bb6bfc19de..37fca43cd9 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -135,7 +135,7 @@ int kvm_has_pit_state2(void)
 
 bool kvm_has_smm(void)
 {
-return kvm_check_extension(kvm_state, KVM_CAP_X86_SMM);
+return kvm_vm_check_extension(kvm_state, KVM_CAP_X86_SMM);
 }
 
 bool kvm_has_adjust_clock_stable(void)
-- 
2.30.0