KVM: arm64: Fix RAS trapping in pKVM for protected VMs

Trap RAS in pKVM if not supported at all for protected VMs. The
RAS version doesn't matter in this case.

Fixes: 2a0c343 ("KVM: arm64: Initialize trap registers for protected VMs")
Signed-off-by: Fuad Tabba <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Zyngier <[email protected]>

Author: Fuad Tabba

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);
 	}