| Message ID | 20180517070631.15224-3-npiggin@gmail.com |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | assorted radix fixes and improvemets for page fault and invalidation | expand |
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index b8ee740b317c..481da8f93fa4 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -595,7 +595,7 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift); if (ptep && pte_present(*ptep)) { - old = kvmppc_radix_update_pte(kvm, ptep, _PAGE_PRESENT, 0, + old = kvmppc_radix_update_pte(kvm, ptep, ~0UL, 0, gpa, shift); kvmppc_radix_tlbie_page(kvm, gpa, shift); if ((old & _PAGE_DIRTY) && memslot->dirty_bitmap) {
The current partition table unmap code clears the _PAGE_PRESENT bit out of the pte, which leaves pud_huge/pmd_huge true and does not clear pud_present/pmd_present. This can confuse subsequent page faults. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)