diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/vsie.c | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 8ba7a98a50cf..6fdf1f7647d7 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -176,6 +176,8 @@ static int kvm_clock_sync(struct notifier_block *notifier, unsigned long val, vcpu->arch.sie_block->epoch -= *delta; if (vcpu->arch.cputm_enabled) vcpu->arch.cputm_start += *delta; + if (vcpu->arch.vsie_block) + vcpu->arch.vsie_block->epoch -= *delta; } } return NOTIFY_OK; diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 90781ba52803..6895e7b3be12 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -843,12 +843,21 @@ static int acquire_gmap_shadow(struct kvm_vcpu *vcpu, static void register_shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) { + struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; + WRITE_ONCE(vcpu->arch.vsie_block, &vsie_page->scb_s); /* * External calls have to lead to a kick of the vcpu and * therefore the vsie -> Simulate Wait state. */ atomic_or(CPUSTAT_WAIT, &vcpu->arch.sie_block->cpuflags); + /* + * We have to adjust the g3 epoch by the g2 epoch. The epoch will + * automatically be adjusted on tod clock changes via kvm_sync_clock. + */ + preempt_disable(); + scb_s->epoch += vcpu->kvm->arch.epoch; + preempt_enable(); } /* |