We want to count IO exit requests in kvm_stat. At the same time
we can get rid of the handle_noop function.
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
arch/s390/include/asm/kvm_host.h | 1 +
arch/s390/kvm/intercept.c | 17 ++++-------------
arch/s390/kvm/kvm-s390.c | 1 +
3 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 27918b15a8ba..22615af0b6e6 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -294,6 +294,7 @@ struct kvm_vcpu_stat {
u64 exit_userspace;
u64 exit_null;
u64 exit_external_request;
+ u64 exit_io_request;
u64 exit_external_interrupt;
u64 exit_stop_request;
u64 exit_validity;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 07c6e81163bf..a389fa85cca2 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -50,18 +50,6 @@ u8 kvm_s390_get_ilen(struct kvm_vcpu *vcpu)
return ilen;
}
-static int handle_noop(struct kvm_vcpu *vcpu)
-{
- switch (vcpu->arch.sie_block->icptcode) {
- case 0x10:
- vcpu->stat.exit_external_request++;
- break;
- default:
- break; /* nothing */
- }
- return 0;
-}
-
static int handle_stop(struct kvm_vcpu *vcpu)
{
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
@@ -465,8 +453,11 @@ int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
switch (vcpu->arch.sie_block->icptcode) {
case ICPT_EXTREQ:
+ vcpu->stat.exit_external_request++;
+ return 0;
case ICPT_IOREQ:
- return handle_noop(vcpu);
+ vcpu->stat.exit_io_request++;
+ return 0;
case ICPT_INST:
rc = handle_instruction(vcpu);
break;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 957be1c51a4b..41adcfe169a9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -64,6 +64,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exit_validity", VCPU_STAT(exit_validity) },
{ "exit_stop_request", VCPU_STAT(exit_stop_request) },
{ "exit_external_request", VCPU_STAT(exit_external_request) },
+ { "exit_io_request", VCPU_STAT(exit_io_request) },
{ "exit_external_interrupt", VCPU_STAT(exit_external_interrupt) },
{ "exit_instruction", VCPU_STAT(exit_instruction) },
{ "exit_pei", VCPU_STAT(exit_pei) },
--
2.14.3
