KVM: s390: Add stats for PEI events

Add partial execution intercepted events in kvm_stats_debugfs.

Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 37b9017..ac82e8e 100644 (file)
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -245,6 +245,7 @@ struct kvm_vcpu_stat {
        u32 exit_stop_request;
        u32 exit_validity;
        u32 exit_instruction;
+       u32 exit_pei;
        u32 halt_successful_poll;
        u32 halt_attempted_poll;
        u32 halt_poll_invalid;

diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 2e6b54e..2521571 100644 (file)
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -341,6 +341,8 @@ static int handle_mvpg_pei(struct kvm_vcpu *vcpu)
 
 static int handle_partial_execution(struct kvm_vcpu *vcpu)
 {
+       vcpu->stat.exit_pei++;
+
        if (vcpu->arch.sie_block->ipa == 0xb254)        /* MVPG */
                return handle_mvpg_pei(vcpu);
        if (vcpu->arch.sie_block->ipa >> 8 == 0xae)     /* SIGP */

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index c9ae539..43f2a2b 100644 (file)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -61,6 +61,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
        { "exit_external_request", VCPU_STAT(exit_external_request) },
        { "exit_external_interrupt", VCPU_STAT(exit_external_interrupt) },
        { "exit_instruction", VCPU_STAT(exit_instruction) },
+       { "exit_pei", VCPU_STAT(exit_pei) },
        { "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
        { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
        { "halt_successful_poll", VCPU_STAT(halt_successful_poll) },