From: Sergey Sorokin <afaral...@yandex.ru>
As described in AArch32.CheckS2Permission an instruction fetch fails if
XN bit is set or there is no read permission for the address.
Signed-off-by: Sergey Sorokin <afaral...@yandex.ru>
Message-id: 1461002400-3187-1-git-send-email-afaral...@yandex.ru
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
target-arm/helper.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 09638b2..59efb90 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -6708,7 +6708,9 @@ static int get_S2prot(CPUARMState *env, int s2ap, int xn)
prot |= PAGE_WRITE;
}
if (!xn) {
- prot |= PAGE_EXEC;
+ if (arm_el_is_aa64(env, 2) || prot & PAGE_READ) {
+ prot |= PAGE_EXEC;
+ }
}
return prot;
}
--
1.9.1
