Fix NX bit

ctx->nx only got ORed, but never reset. So when one page in the
lifetime of the VM was ever NX, all later pages were too.

Signed-off-by: Alexander Graf <alex@csgraf.de>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6755 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 60a63b8..f2dc011 100644 (file)
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -226,7 +226,7 @@ static always_inline int _pte_check (mmu_ctx_t *ctx, int is_64b,
             ptem = pte0 & PTE64_PTEM_MASK;
             mmask = PTE64_CHECK_MASK;
             pp = (pte1 & 0x00000003) | ((pte1 >> 61) & 0x00000004);
-            ctx->nx |= (pte1 >> 2) & 1; /* No execute bit */
+            ctx->nx  = (pte1 >> 2) & 1; /* No execute bit */
             ctx->nx |= (pte1 >> 3) & 1; /* Guarded bit    */
         } else
 #endif