arm64: KVM: fix unmapping with 48-bit VAs

[android-x86/kernel.git] / arch / arm / kvm / mmu.c

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 57a403a..79d3fbf 100644 (file)
--- 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);
 }