KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped

In order to facilitate debug, let's log which class of GICv3 system registers are trapped. Tested-by: Alexander Graf <[email protected]> Acked-by: David Daney <[email protected]> Acked-by: Christoffer Dall <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Christoffer Dall <[email protected]>
ambv · Jun 15, 2017 · 2873b50 · 2873b50
1 parent ff89511
commit 2873b50
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
@@ -518,7 +518,10 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 #endif
 
 	if (group0_trap || group1_trap || common_trap) {
-		kvm_info("GICv3 sysreg trapping enabled (reduced performance)\n");
+		kvm_info("GICv3 sysreg trapping enabled ([%s%s%s], reduced performance)\n",
+			 group0_trap ? "G0" : "",
+			 group1_trap ? "G1" : "",
+			 common_trap ? "C"  : "");
 		static_branch_enable(&vgic_v3_cpuif_trap);
 	}