[PATCH v2 25/25] KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped

Marc Zyngier
2017-06-01T10:18:16Z

In order to facilitate debug, let's log which class of GICv3 system
registers are trapped.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
virt/kvm/arm/vgic/vgic-v3.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 636f1258d217..e0b530f4b1e6 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -499,7 +499,10 @@ 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);
}

--
2.11.0