diff options
Diffstat (limited to 'arch/arm/kvm/mmu.c')
| -rw-r--r-- | arch/arm/kvm/mmu.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index 57a403a5c22b..8664ff17cbbe 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -197,7 +197,8 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp, pgd = pgdp + pgd_index(addr); do { next = kvm_pgd_addr_end(addr, end); - unmap_puds(kvm, pgd, addr, next); + if (!pgd_none(*pgd)) + unmap_puds(kvm, pgd, addr, next); } while (pgd++, addr = next, addr != end); } @@ -834,6 +835,11 @@ static bool kvm_is_write_fault(struct kvm_vcpu *vcpu) return kvm_vcpu_dabt_iswrite(vcpu); } +static bool kvm_is_device_pfn(unsigned long pfn) +{ + return !pfn_valid(pfn); +} + static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, struct kvm_memory_slot *memslot, unsigned long hva, unsigned long fault_status) @@ -904,7 +910,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, if (is_error_pfn(pfn)) return -EFAULT; - if (kvm_is_mmio_pfn(pfn)) + if (kvm_is_device_pfn(pfn)) mem_type = PAGE_S2_DEVICE; spin_lock(&kvm->mmu_lock); |