diff mbox series

[PULL,09/10] linux-user: Align mmap_find_vma to host page size

Message ID 20190523144336.13960-10-laurent@vivier.eu (mailing list archive)
State New, archived
Headers show
Series [PULL,01/10] linux-user: add pseudo /proc/cpuinfo for sparc | expand

Commit Message

Laurent Vivier May 23, 2019, 2:43 p.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>

This can avoid stack allocation failures for i386 guest
on ppc64 (64k page) host.

Suggested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190519201953.20161-14-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/mmap.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 10796b37ac7b..af41339d576b 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -262,6 +262,8 @@  abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size, abi_ulong align)
     abi_ulong addr;
     int wrapped, repeat;
 
+    align = MAX(align, qemu_host_page_size);
+
     /* If 'start' == 0, then a default start address is used. */
     if (start == 0) {
         start = mmap_next_start;