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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-05-05 12:47:20 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-05-05 21:20:15 +1000 |
| commit | 9781e759b3258bc607296bc1bf7cc314b7bfd0fc (patch) | |
| tree | 67dc53128112971960986cc4d72fc2fc0c57cdab /arch/powerpc/kvm/book3s_64_mmu_hv.c | |
| parent | powerpc/kvm/book3s: Add helper for host page table walk (diff) | |
| download | linux-dev-9781e759b3258bc607296bc1bf7cc314b7bfd0fc.tar.xz linux-dev-9781e759b3258bc607296bc1bf7cc314b7bfd0fc.zip | |
powerpc/kvm/book3s: Use find_kvm_host_pte in page fault handler
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200505071729.54912-14-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 2b35f9bcf892..8f9cd4c79044 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -602,12 +602,12 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, * Read the PTE from the process' radix tree and use that * so we get the shift and attribute bits. */ - local_irq_disable(); - ptep = __find_linux_pte(vcpu->arch.pgdir, hva, NULL, &shift); + spin_lock(&kvm->mmu_lock); + ptep = find_kvm_host_pte(kvm, mmu_seq, hva, &shift); pte = __pte(0); if (ptep) - pte = *ptep; - local_irq_enable(); + pte = READ_ONCE(*ptep); + spin_unlock(&kvm->mmu_lock); /* * If the PTE disappeared temporarily due to a THP * collapse, just return and let the guest try again. |