@@ -1439,6 +1439,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
long vma_pagesize, fault_granule;
enum kvm_pgtable_prot prot = KVM_PGTABLE_PROT_R;
struct kvm_pgtable *pgt;
+ struct page *page;
if (fault_is_perm)
fault_granule = kvm_vcpu_trap_get_perm_fault_granule(vcpu);
@@ -1553,7 +1554,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
/*
* Read mmu_invalidate_seq so that KVM can detect if the results of
- * vma_lookup() or __gfn_to_pfn_memslot() become stale prior to
+ * vma_lookup() or __kvm_faultin_pfn() become stale prior to
* acquiring kvm->mmu_lock.
*
* Rely on mmap_read_unlock() for an implicit smp_rmb(), which pairs
@@ -1562,8 +1563,8 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
mmu_seq = vcpu->kvm->mmu_invalidate_seq;
mmap_read_unlock(current->mm);
- pfn = __gfn_to_pfn_memslot(memslot, gfn, false, NULL,
- write_fault, &writable);
+ pfn = __kvm_faultin_pfn(memslot, gfn, write_fault ? FOLL_WRITE : 0,
+ &writable, &page);
if (pfn == KVM_PFN_ERR_HWPOISON) {
kvm_send_hwpoison_signal(hva, vma_shift);
return 0;
@@ -1576,7 +1577,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
* If the page was identified as device early by looking at
* the VMA flags, vma_pagesize is already representing the
* largest quantity we can map. If instead it was mapped
- * via gfn_to_pfn_prot(), vma_pagesize is set to PAGE_SIZE
+ * via __kvm_faultin_pfn(), vma_pagesize is set to PAGE_SIZE
* and must not be upgraded.
*
* In both cases, we don't let transparent_hugepage_adjust()
@@ -1685,11 +1686,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
}
out_unlock:
- if (writable && !ret)
- kvm_set_pfn_dirty(pfn);
- else
- kvm_release_pfn_clean(pfn);
-
+ kvm_release_faultin_page(kvm, page, !!ret, writable);
read_unlock(&kvm->mmu_lock);
/* Mark the page dirty only if the fault is handled successfully */
Convert arm64 to use __kvm_faultin_pfn()+kvm_release_faultin_page(). Three down, six to go. Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/arm64/kvm/mmu.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-)