From: Peter Maydell <peter.mayd...@linaro.org>
The 32-bit ARM validate_guest_space() check tests whether the
specified -R value leaves enough space for us to put the
commpage in at 0xffff0f00. However it was incorrectly doing
a <= check for the check against (guest_base + guest_size),
which meant that it wasn't permitting the guest space to
butt right up against the commpage.
Fix the comparison, so that -R values all the way up to 0xffff0000
work correctly.
Reviewed-by: Emilio G. Cota <c...@braap.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Riku Voipio <riku.voi...@linaro.org>
---
linux-user/elfload.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 79062882ba..3b857fbc9c 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -377,7 +377,7 @@ static int validate_guest_space(unsigned long guest_base,
* then there is no way we can allocate it.
*/
if (test_page_addr >= guest_base
- && test_page_addr <= (guest_base + guest_size)) {
+ && test_page_addr < (guest_base + guest_size)) {
return -1;
}
--
2.14.2
