diff mbox

[GIT,PULL,09/10] KVM: add machine check counter to kvm_stat

Message ID 20180314192858.172855-10-borntraeger@de.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Christian Borntraeger March 14, 2018, 7:28 p.m. UTC 
From: QingFeng Hao <haoqf@linux.vnet.ibm.com>

This counter can be used for administration, debug or test purposes.

Suggested-by: Vladislav Mironov <mironov@de.ibm.com>
Signed-off-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 arch/s390/include/asm/kvm_host.h | 1 +
 arch/s390/kvm/interrupt.c        | 1 +
 arch/s390/kvm/kvm-s390.c         | 1 +
 3 files changed, 3 insertions(+)
diff mbox

Patch

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 22615af0b6e6..77a49de9c511 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -320,6 +320,7 @@  struct kvm_vcpu_stat {
 	u64 deliver_restart_signal;
 	u64 deliver_program_int;
 	u64 deliver_io_int;
+	u64 deliver_machine_check;
 	u64 exit_wait_state;
 	u64 instruction_epsw;
 	u64 instruction_gs;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index b04616b57a94..bde04a6191ca 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -595,6 +595,7 @@  static int __must_check __deliver_machine_check(struct kvm_vcpu *vcpu)
 		trace_kvm_s390_deliver_interrupt(vcpu->vcpu_id,
 						 KVM_S390_MCHK,
 						 mchk.cr14, mchk.mcic);
+		vcpu->stat.deliver_machine_check++;
 		rc = __write_machine_check(vcpu, &mchk);
 	}
 	return rc;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 41adcfe169a9..41615c900348 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -88,6 +88,7 @@  struct kvm_stats_debugfs_item debugfs_entries[] = {
 	{ "deliver_restart_signal", VCPU_STAT(deliver_restart_signal) },
 	{ "deliver_program_interruption", VCPU_STAT(deliver_program_int) },
 	{ "deliver_io_interrupt", VCPU_STAT(deliver_io_int) },
+	{ "deliver_machine_check", VCPU_STAT(deliver_machine_check) },
 	{ "exit_wait_state", VCPU_STAT(exit_wait_state) },
 	{ "instruction_epsw", VCPU_STAT(instruction_epsw) },
 	{ "instruction_gs", VCPU_STAT(instruction_gs) },