diff mbox series

[v5,07/17] KVM: arm64: Fix RAS trapping in pKVM for protected VMs

Message ID 20241216105057.579031-8-tabba@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: arm64: Rework guest VM fixed feature handling and trapping in pKVM | expand

Commit Message

Fuad Tabba Dec. 16, 2024, 10:50 a.m. UTC 
Trap RAS in pKVM if not supported at all for protected VMs. The
RAS version doesn't matter in this case.

Fixes: 2a0c343386ae ("KVM: arm64: Initialize trap registers for protected VMs")
Signed-off-by: Fuad Tabba <tabba@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 3014f3295d81..25bbd4c99d30 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -70,9 +70,8 @@  static void pvm_init_traps_hcr(struct kvm_vcpu *vcpu)
 	 */
 	val |= HCR_TACR | HCR_TIDCP | HCR_TID3 | HCR_TID1;
 
-	/* Trap RAS unless all current versions are supported */
-	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_RAS), id_aa64pfr0) <
-	    ID_AA64PFR0_EL1_RAS_V1P1) {
+	/* Trap RAS */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_RAS), id_aa64pfr0)) {
 		val |= HCR_TERR | HCR_TEA;
 		val &= ~(HCR_FIEN);
 	}