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authorSuravee Suthikulpanit2022-04-08 08:37:10 -0500
committerPaolo Bonzini2022-04-11 13:28:56 -0400
commitc538dc792ff7e456d777f585fdf96aa4e781ed66 (patch)
treee0a8e92af5b139c93cb3edab6c871dd9e53459fd /arch/x86/kvm
parentaf105c9cc9ec8fdc087827a98d4b9dc10d61c358 (diff)
KVM: SVM: Do not activate AVIC for SEV-enabled guest
Since current AVIC implementation cannot support encrypted memory, inhibit AVIC for SEV-enabled guest. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Message-Id: <20220408133710.54275-1-suravee.suthikulpanit@amd.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/svm/avic.c3
-rw-r--r--arch/x86/kvm/svm/sev.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index a1cf9c31273b..421619540ff9 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -837,7 +837,8 @@ bool avic_check_apicv_inhibit_reasons(enum kvm_apicv_inhibit reason)
BIT(APICV_INHIBIT_REASON_IRQWIN) |
BIT(APICV_INHIBIT_REASON_PIT_REINJ) |
BIT(APICV_INHIBIT_REASON_X2APIC) |
- BIT(APICV_INHIBIT_REASON_BLOCKIRQ);
+ BIT(APICV_INHIBIT_REASON_BLOCKIRQ) |
+ BIT(APICV_INHIBIT_REASON_SEV);
return supported & BIT(reason);
}
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index c2fe89ecdb2d..537aaddc852f 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -260,6 +260,8 @@ static int sev_guest_init(struct kvm *kvm, struct kvm_sev_cmd *argp)
INIT_LIST_HEAD(&sev->regions_list);
INIT_LIST_HEAD(&sev->mirror_vms);
+ kvm_set_apicv_inhibit(kvm, APICV_INHIBIT_REASON_SEV);
+
return 0;
e_free: