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KVM: s390: fixup and missing stat

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1. A fixup for a bug that was introduced in 4.7-rc1 if userspace uses
    the cpu model ioctls
 2. Add the missing kvm stat for pei events
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Merge tag 'kvm-s390-master-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

KVM: s390: fixup and missing stat

1. A fixup for a bug that was introduced in 4.7-rc1 if userspace uses
   the cpu model ioctls
2. Add the missing kvm stat for pei events
This commit is contained in:
Paolo Bonzini 2016-06-13 13:44:50 +02:00
commit c1b8bfb08f
3 changed files with 5 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
arch/s390/include/asm/kvm_host.h
View file

@ -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;

2
arch/s390/kvm/intercept.c
View file

@ -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 */

3
arch/s390/kvm/kvm-s390.c
View file

@ -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) },
@ -657,7 +658,7 @@ static int kvm_s390_set_processor(struct kvm *kvm, struct kvm_device_attr *attr)
kvm->arch.model.cpuid = proc->cpuid;
lowest_ibc = sclp.ibc >> 16 & 0xfff;
unblocked_ibc = sclp.ibc & 0xfff;
if (lowest_ibc) {
if (lowest_ibc && proc->ibc) {
if (proc->ibc > unblocked_ibc)
kvm->arch.model.ibc = unblocked_ibc;
else if (proc->ibc < lowest_ibc)