KVM: PPC: Book3S HV: ptes are big endian

[cascardo/linux.git] / arch / powerpc / kvm / book3s_64_mmu_hv.c

diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index d407702..59425f1 100644 (file)
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -1117,8 +1117,11 @@ static int kvm_test_clear_dirty_npages(struct kvm *kvm, unsigned long *rmapp)
                }
 
                /* Now check and modify the HPTE */
-               if (!(hptep[0] & cpu_to_be64(HPTE_V_VALID)))
+               if (!(hptep[0] & cpu_to_be64(HPTE_V_VALID))) {
+                       /* unlock and continue */
+                       hptep[0] &= ~cpu_to_be64(HPTE_V_HVLOCK);
                        continue;
+               }
 
                /* need to make it temporarily absent so C is stable */
                hptep[0] |= cpu_to_be64(HPTE_V_ABSENT);
@@ -1539,9 +1542,15 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf,
                hptp = (__be64 *)(kvm->arch.hpt_virt + (i * HPTE_SIZE));
                lbuf = (unsigned long __user *)buf;
                for (j = 0; j < hdr.n_valid; ++j) {
+                       __be64 hpte_v;
+                       __be64 hpte_r;
+
                        err = -EFAULT;
-                       if (__get_user(v, lbuf) || __get_user(r, lbuf + 1))
+                       if (__get_user(hpte_v, lbuf) ||
+                           __get_user(hpte_r, lbuf + 1))
                                goto out;
+                       v = be64_to_cpu(hpte_v);
+                       r = be64_to_cpu(hpte_r);
                        err = -EINVAL;
                        if (!(v & HPTE_V_VALID))
                                goto out;