diff options
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0dcf9b8fc12c..67f1b6b4c060 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -150,7 +150,8 @@ int kvm_arch_hardware_enable(void) return 0; } -static void kvm_gmap_notifier(struct gmap *gmap, unsigned long address); +static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start, + unsigned long end); /* * This callback is executed during stop_machine(). All CPUs are therefore @@ -1976,16 +1977,23 @@ void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu) kvm_s390_vcpu_request(vcpu); } -static void kvm_gmap_notifier(struct gmap *gmap, unsigned long address) +static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start, + unsigned long end) { - int i; struct kvm *kvm = gmap->private; struct kvm_vcpu *vcpu; + unsigned long prefix; + int i; + if (start >= 1UL << 31) + /* We are only interested in prefix pages */ + return; kvm_for_each_vcpu(i, vcpu, kvm) { /* match against both prefix pages */ - if (kvm_s390_get_prefix(vcpu) == (address & ~0x1000UL)) { - VCPU_EVENT(vcpu, 2, "gmap notifier for %lx", address); + prefix = kvm_s390_get_prefix(vcpu); + if (prefix <= end && start <= prefix + 2*PAGE_SIZE - 1) { + VCPU_EVENT(vcpu, 2, "gmap notifier for %lx-%lx", + start, end); kvm_s390_sync_request(KVM_REQ_MMU_RELOAD, vcpu); } } |