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KVM: s390: count vcpu wakeups in stat.halt_wakeup

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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>
This commit is contained in:
David Hildenbrand 2014-07-11 10:00:43 +02:00 committed by Christian Borntraeger
parent 7be81a4669
commit ce2e4f0b75
3 changed files with 3 additions and 0 deletions
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1
arch/s390/include/asm/kvm_host.h
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@ -192,6 +192,7 @@ struct kvm_vcpu_stat {
u32 exit_stop_request; u32 exit_stop_request;
u32 exit_validity; u32 exit_validity;
u32 exit_instruction; u32 exit_instruction;
u32 halt_wakeup;
u32 instruction_lctl; u32 instruction_lctl;
u32 instruction_lctlg; u32 instruction_lctlg;
u32 instruction_stctl; u32 instruction_stctl;

1
arch/s390/kvm/interrupt.c
View file

@ -626,6 +626,7 @@ void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu)
*/ */
vcpu->preempted = true; vcpu->preempted = true;
wake_up_interruptible(&vcpu->wq); wake_up_interruptible(&vcpu->wq);
vcpu->stat.halt_wakeup++;
} }
} }

1
arch/s390/kvm/kvm-s390.c
View file

@ -50,6 +50,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exit_instruction", VCPU_STAT(exit_instruction) }, { "exit_instruction", VCPU_STAT(exit_instruction) },
{ "exit_program_interruption", VCPU_STAT(exit_program_interruption) }, { "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
{ "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) }, { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
{ "halt_wakeup", VCPU_STAT(halt_wakeup) },
{ "instruction_lctlg", VCPU_STAT(instruction_lctlg) }, { "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
{ "instruction_lctl", VCPU_STAT(instruction_lctl) }, { "instruction_lctl", VCPU_STAT(instruction_lctl) },
{ "instruction_stctl", VCPU_STAT(instruction_stctl) }, { "instruction_stctl", VCPU_STAT(instruction_stctl) },