From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 9 Jun 2017 12:49:54 +0100
Subject: KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped
Patch-mainline: v4.13-rc1
Git-commit: 2873b5082c5fbe2037f12e8d2abc8ad8f8d82a1b
References: bsc#1077761
In order to facilitate debug, let's log which class of GICv3 system
registers are trapped.
Tested-by: Alexander Graf <agraf@suse.de>
Acked-by: David Daney <david.daney@cavium.com>
Acked-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
Acked-by: Alexander Graf <agraf@suse.de>
---
virt/kvm/arm/vgic/vgic-v3.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -518,7 +518,10 @@
#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);
}