[PATCH] KVM: arm/arm64: show halt poll counters in debugfs

From: Christian Borntraeger
Date: Sun Oct 27 2019 - 04:20:18 EST


ARM/ARM64 has counters halt_successful_poll, halt_attempted_poll,
halt_poll_invalid, and halt_wakeup but never exposed those in debugfs.

Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
This patch is untested
arch/arm/kvm/guest.c | 4 ++++
arch/arm64/kvm/guest.c | 4 ++++
2 files changed, 8 insertions(+)

diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index 684cf64..6696464 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -21,6 +21,10 @@
#define VCPU_STAT(x) { #x, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU }

struct kvm_stats_debugfs_item debugfs_entries[] = {
+ VCPU_STAT(halt_successful_poll),
+ VCPU_STAT(halt_attempted_poll),
+ VCPU_STAT(halt_poll_invalid),
+ VCPU_STAT(halt_wakeup),
VCPU_STAT(hvc_exit_stat),
VCPU_STAT(wfe_exit_stat),
VCPU_STAT(wfi_exit_stat),
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index dfd6264..260ea31 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -34,6 +34,10 @@
#define VCPU_STAT(x) { #x, offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU }

struct kvm_stats_debugfs_item debugfs_entries[] = {
+ VCPU_STAT(halt_successful_poll),
+ VCPU_STAT(halt_attempted_poll),
+ VCPU_STAT(halt_poll_invalid),
+ VCPU_STAT(halt_wakeup),
VCPU_STAT(hvc_exit_stat),
VCPU_STAT(wfe_exit_stat),
VCPU_STAT(wfi_exit_stat),
--
1.8.3.1