diff mbox

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

Message ID 20170601102117.17750-26-marc.zyngier@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Marc Zyngier June 1, 2017, 10:21 a.m. UTC 
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(-)

Comments

Christoffer Dall June 6, 2017, 1:23 p.m. UTC | #1 
On Thu, Jun 01, 2017 at 11:21:17AM +0100, Marc Zyngier wrote:
> 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>

Acked-by: Christoffer Dall <cdall@linaro.org>

> ---
>  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
>
diff mbox

Patch

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);
 	}