[PATCH v3 09/13] KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup()

From: Sean Christopherson
Date: Fri Jan 22 2021 - 15:29:37 EST


Query max_sev_asid directly after setting it instead of bouncing through
its wrapper, svm_sev_enabled(). Using the wrapper is unnecessary
obfuscation.

No functional change intended.

Reviewed by: Tom Lendacky <thomas.lendacky@xxxxxxx>
Reviewed-by: Brijesh Singh <brijesh.singh@xxxxxxx>
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/svm/sev.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 75a83e2a8a89..0c69de022614 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -1278,8 +1278,7 @@ void __init sev_hardware_setup(void)

/* Maximum number of encrypted guests supported simultaneously */
max_sev_asid = ecx;
-
- if (!svm_sev_enabled())
+ if (!max_sev_asid)
goto out;

/* Minimum ASID value that should be used for SEV guest */
--
2.30.0.280.ga3ce27912f-goog