diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kvm/guestdbg.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/interrupt.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/kvm/guestdbg.c b/arch/s390/kvm/guestdbg.c index 100e99d..757ccef 100644 --- a/arch/s390/kvm/guestdbg.c +++ b/arch/s390/kvm/guestdbg.c @@ -155,6 +155,8 @@ void kvm_s390_patch_guest_per_regs(struct kvm_vcpu *vcpu) */ if (guestdbg_sstep_enabled(vcpu)) { + /* disable timer (clock-comparator) interrupts */ + vcpu->arch.sie_block->gcr[0] &= ~0x800ul; vcpu->arch.sie_block->gcr[9] |= PER_EVENT_IFETCH; vcpu->arch.sie_block->gcr[10] = 0; vcpu->arch.sie_block->gcr[11] = PSW_ADDR_INSN; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 0165f1b..d020c5f 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -61,6 +61,9 @@ static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu) if (psw_extint_disabled(vcpu) || !(vcpu->arch.sie_block->gcr[0] & 0x800ul)) return 0; + if (guestdbg_enabled(vcpu) && guestdbg_sstep_enabled(vcpu)) + /* No timer interrupts when single stepping */ + return 0; return 1; } |