KVM: arm64: Add trap routing for FEAT_FGT2 registers

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@kernel.org>

Author: Marc Zyngier

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",