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[14/22] KVM: arm/arm64: Show halt poll counters in debugfs

Message ID 20191120164236.29359-15-maz@kernel.org (mailing list archive)
State New, archived
Headers show
Series [01/22] KVM: arm/arm64: Allow reporting non-ISV data aborts to userspace | expand

Commit Message

Marc Zyngier Nov. 20, 2019, 4:42 p.m. UTC 
From: Christian Borntraeger <borntraeger@de.ibm.com>

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@de.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1572164390-5851-1-git-send-email-borntraeger@de.ibm.com
---
 arch/arm/kvm/guest.c   | 4 ++++
 arch/arm64/kvm/guest.c | 4 ++++
 2 files changed, 8 insertions(+)
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Patch

diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index 684cf64b4033..66964642cd42 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 dfd626447482..260ea3158682 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),