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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-07-11 12:00:43 +0400 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-10-01 16:42:14 +0400 |
| commit | ce2e4f0b75a567d25375b52476662c724304e476 (patch) | |
| tree | a7e08d055f37627bf801b3cb1f510099fda54f7b /arch/s390 | |
| parent | 7be81a46695d2088f848653f2bbec06bb178adce (diff) | |
| download | linux-ce2e4f0b75a567d25375b52476662c724304e476.tar.xz | |
KVM: s390: count vcpu wakeups in stat.halt_wakeup
This patch introduces the halt_wakeup counter used by common code and uses it to
count vcpu wakeups done in s390 arch specific code.
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/kvm_host.h | 1 | ||||
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 1 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 1a6f6fd8bd34..2175f911a73a 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -192,6 +192,7 @@ struct kvm_vcpu_stat { u32 exit_stop_request; u32 exit_validity; u32 exit_instruction; + u32 halt_wakeup; u32 instruction_lctl; u32 instruction_lctlg; u32 instruction_stctl; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 4cad00adef93..a39838457f01 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -626,6 +626,7 @@ void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu) */ vcpu->preempted = true; wake_up_interruptible(&vcpu->wq); + vcpu->stat.halt_wakeup++; } } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0d5aa88e238b..55aade49b6d1 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -50,6 +50,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { "exit_instruction", VCPU_STAT(exit_instruction) }, { "exit_program_interruption", VCPU_STAT(exit_program_interruption) }, { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) }, + { "halt_wakeup", VCPU_STAT(halt_wakeup) }, { "instruction_lctlg", VCPU_STAT(instruction_lctlg) }, { "instruction_lctl", VCPU_STAT(instruction_lctl) }, { "instruction_stctl", VCPU_STAT(instruction_stctl) }, |