[PATCH v4 39/43] KVM: arm64: Add trap routing for FEAT_FGT2 registers

[Marc Zyngier]

Similarly to the FEAT_FGT registers, pick the correct FEAT_FGT2
register when a sysreg trap indicates they could be responsible
for the exception.

Signed-off-by: Marc Zyngier <maz at kernel.org>
---
 arch/arm64/kvm/emulate-nested.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c
index 3312aefa095e0..e2a843675da96 100644
--- a/arch/arm64/kvm/emulate-nested.c
+++ b/arch/arm64/kvm/emulate-nested.c
@@ -2485,6 +2485,18 @@ bool triage_sysreg_trap(struct kvm_vcpu *vcpu, int *sr_index)
 		}
 		break;
 
+	case HFGRTR2_GROUP:
+		fgtreg = is_read ? HFGRTR2_EL2 : HFGWTR2_EL2;
+		break;
+
+	case HDFGRTR2_GROUP:
+		fgtreg = is_read ? HDFGRTR2_EL2 : HDFGWTR2_EL2;
+		break;
+
+	case HFGITR2_GROUP:
+		fgtreg = HFGITR2_EL2;
+		break;
+
 	default:
 		/* Something is really wrong, bail out */
 		WARN_ONCE(1, "Bad FGT group (encoding %08x, config %016llx)\n",
-- 
2.39.2