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-rw-r--r--include/linux/kvm_host.h3
-rw-r--r--include/linux/kvm_types.h1
-rw-r--r--virt/kvm/kvm_main.c4
3 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index bd13c5b5bd1d..dc7740cafea7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1587,7 +1587,8 @@ struct _kvm_stats_desc {
STATS_DESC_LOGHIST_TIME_NSEC(VCPU_GENERIC, halt_poll_fail_hist, \
HALT_POLL_HIST_COUNT), \
STATS_DESC_LOGHIST_TIME_NSEC(VCPU_GENERIC, halt_wait_hist, \
- HALT_POLL_HIST_COUNT)
+ HALT_POLL_HIST_COUNT), \
+ STATS_DESC_ICOUNTER(VCPU_GENERIC, blocking)
extern struct dentry *kvm_debugfs_dir;
diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h
index 234eab059839..888ef12862c9 100644
--- a/include/linux/kvm_types.h
+++ b/include/linux/kvm_types.h
@@ -87,6 +87,7 @@ struct kvm_vcpu_stat_generic {
u64 halt_poll_success_hist[HALT_POLL_HIST_COUNT];
u64 halt_poll_fail_hist[HALT_POLL_HIST_COUNT];
u64 halt_wait_hist[HALT_POLL_HIST_COUNT];
+ u64 blocking;
};
#define KVM_STATS_NAME_SIZE 48
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 370b95ad5f03..2630db6e8cb5 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3282,6 +3282,8 @@ bool kvm_vcpu_block(struct kvm_vcpu *vcpu)
struct rcuwait *wait = kvm_arch_vcpu_get_wait(vcpu);
bool waited = false;
+ vcpu->stat.generic.blocking = 1;
+
kvm_arch_vcpu_blocking(vcpu);
prepare_to_rcuwait(wait);
@@ -3298,6 +3300,8 @@ bool kvm_vcpu_block(struct kvm_vcpu *vcpu)
kvm_arch_vcpu_unblocking(vcpu);
+ vcpu->stat.generic.blocking = 0;
+
return waited;
}