diff options
Diffstat (limited to 'arch/s390/kvm/priv.c')
| -rw-r--r-- | arch/s390/kvm/priv.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 95916fa7c670..c6deed782c61 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -728,9 +728,12 @@ static int handle_pfmf(struct kvm_vcpu *vcpu) if (rc) return rc; - if (set_guest_storage_key(current->mm, useraddr, + down_read(¤t->mm->mmap_sem); + rc = set_guest_storage_key(current->mm, useraddr, vcpu->run->s.regs.gprs[reg1] & PFMF_KEY, - vcpu->run->s.regs.gprs[reg1] & PFMF_NQ)) + vcpu->run->s.regs.gprs[reg1] & PFMF_NQ); + up_read(¤t->mm->mmap_sem); + if (rc) return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); } |