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KVM: add machine check counter to kvm_stat

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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>
This commit is contained in:
QingFeng Hao 2018-03-02 11:56:47 +01:00 committed by Christian Borntraeger
parent 2584003042
commit 32de074909
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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@ -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;

1
arch/s390/kvm/interrupt.c
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@ -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;

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

@ -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) },