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authorQingFeng Hao <haoqf@linux.vnet.ibm.com>2018-03-02 11:56:47 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2018-03-14 19:21:17 +0000
commit32de0749097ea5be5af7f06bc26cf4e06958ac0f (patch)
tree71dfbecd1fd55309a5a2f4ba3166dddad6d6d14e /arch/s390/kvm
parent258400304225a219a2d98f29fe957df98789a843 (diff)
downloadlinux-32de0749097ea5be5af7f06bc26cf4e06958ac0f.tar.bz2
KVM: add machine check counter to kvm_stat
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>
Diffstat (limited to 'arch/s390/kvm')
-rw-r--r--arch/s390/kvm/interrupt.c1
-rw-r--r--arch/s390/kvm/kvm-s390.c1
2 files changed, 2 insertions, 0 deletions
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) },