From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 7 Jul 2023 20:40:51 +0000 (+0100)
Subject: accel/tcg: Accept more page flags in page_check_range
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=91e9e116fea2a3b957e86daf55c832155fdf4b04;p=qemu.git

accel/tcg: Accept more page flags in page_check_range

Only PAGE_WRITE needs special attention, all others can be
handled as we do for PAGE_READ.  Adjust the mask.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230707204054.8792-24-richard.henderson@linaro.org>
---

diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index e4f9563730..1e8fcaf6b0 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -561,8 +561,8 @@ int page_check_range(target_ulong start, target_ulong len, int flags)
         }
 
         missing = flags & ~p->flags;
-        if (missing & PAGE_READ) {
-            ret = -1; /* page not readable */
+        if (missing & ~PAGE_WRITE) {
+            ret = -1; /* page doesn't match */
             break;
         }
         if (missing & PAGE_WRITE) {