From de17843702ae5b31516f469cea4e8565bc269d4b Mon Sep 17 00:00:00 2001
From: "Emilio G. Cota" <cota@braap.org>
Date: Fri, 23 Feb 2018 20:45:27 -0500
Subject: [PATCH] translate-all: add missing munmap of the code_gen guard page
 for MIPS

Backports commit 8bdf4997823126a39bd4c99e4b2283b02cc7865f from qemu
---
 qemu/translate-all.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/qemu/translate-all.c b/qemu/translate-all.c
index b599ee3d..a62e3b57 100644
--- a/qemu/translate-all.c
+++ b/qemu/translate-all.c
@@ -722,11 +722,11 @@ static inline void *alloc_code_gen_buffer(struct uc_struct *uc)
         case 1:
             if (!cross_256mb(buf2, size)) {
                 /* Success!  Use the new buffer.  */
-                munmap(buf, size);
+                munmap(buf, size + qemu_real_host_page_size);
                 break;
             }
             /* Failure.  Work with what we had.  */
-            munmap(buf2, size);
+            munmap(buf2, size + qemu_real_host_page_size);
             /* fallthru */
         default:
             /* Split the original buffer.  Free the smaller half.  */