diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 37 |
1 files changed, 4 insertions, 33 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 2b1f0cdd8c18..f305395cf26e 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -603,27 +603,10 @@ int kvmppc_book3s_hv_page_fault(struct kvm_vcpu *vcpu, write_ok = writing; hva = gfn_to_hva_memslot(memslot, gfn); - /* - * Do a fast check first, since __gfn_to_pfn_memslot doesn't - * do it with !atomic && !async, which is how we call it. - * We always ask for write permission since the common case - * is that the page is writable. - */ - if (get_user_page_fast_only(hva, FOLL_WRITE, &page)) { - write_ok = true; - } else { - /* Call KVM generic code to do the slow-path check */ - pfn = __gfn_to_pfn_memslot(memslot, gfn, false, false, NULL, - writing, &write_ok, NULL); - if (is_error_noslot_pfn(pfn)) - return -EFAULT; - page = NULL; - if (pfn_valid(pfn)) { - page = pfn_to_page(pfn); - if (PageReserved(page)) - page = NULL; - } - } + pfn = __kvm_faultin_pfn(memslot, gfn, writing ? FOLL_WRITE : 0, + &write_ok, &page); + if (is_error_noslot_pfn(pfn)) + return -EFAULT; /* * Read the PTE from the process' radix tree and use that @@ -1010,18 +993,6 @@ bool kvm_test_age_gfn_hv(struct kvm *kvm, struct kvm_gfn_range *range) return kvm_test_age_rmapp(kvm, range->slot, range->start); } -bool kvm_set_spte_gfn_hv(struct kvm *kvm, struct kvm_gfn_range *range) -{ - WARN_ON(range->start + 1 != range->end); - - if (kvm_is_radix(kvm)) - kvm_unmap_radix(kvm, range->slot, range->start); - else - kvm_unmap_rmapp(kvm, range->slot, range->start); - - return false; -} - static int vcpus_running(struct kvm *kvm) { return atomic_read(&kvm->arch.vcpus_running) != 0; |