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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: laurent@vivier.eu
Subject: [Qemu-devel] [PATCH 13/13] linux-user: Align mmap_find_vma to host page size
Date: Sun, 19 May 2019 13:19:53 -0700	[thread overview]
Message-ID: <20190519201953.20161-14-richard.henderson@linaro.org> (raw)
In-Reply-To: <20190519201953.20161-1-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>
---
 linux-user/mmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 10796b37ac..af41339d57 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;
-- 
2.17.1



  parent reply	other threads:[~2019-05-19 20:34 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-19 20:19 [Qemu-devel] [PATCH 00/13] linux-user: path, clone, sparc, shmat fixes Richard Henderson
2019-05-19 20:19 ` [Qemu-devel] [PATCH 01/13] util/path: Do not cache all filenames at startup Richard Henderson
2019-06-13 13:40   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 02/13] linux-user: Rename cpu_clone_regs to cpu_clone_regs_child Richard Henderson
2019-06-13 16:25   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 03/13] linux-user: Introduce cpu_clone_regs_parent Richard Henderson
2019-06-13 16:26   ` Laurent Vivier
2019-06-13 19:10   ` Aleksandar Markovic
2019-05-19 20:19 ` [Qemu-devel] [PATCH 04/13] linux-user/alpha: Set r20 secondary return value Richard Henderson
2019-06-13 16:23   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 05/13] target/sparc: Define an enumeration for accessing env->regwptr Richard Henderson
2019-05-19 20:19 ` [Qemu-devel] [PATCH 06/13] linux-user/sparc: Use WREG constants in sparc/target_cpu.h Richard Henderson
2019-05-19 20:19 ` [Qemu-devel] [PATCH 07/13] linux-user/sparc: Use WREG constants in sparc/signal.c Richard Henderson
2019-06-13 21:31   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 08/13] linux-user/sparc: Fix cpu_clone_regs Richard Henderson
2019-05-19 20:19 ` [Qemu-devel] [PATCH 09/13] linux-user/sparc: Flush register windows before clone/fork/vfork Richard Henderson
2019-05-19 20:19 ` [Qemu-devel] [PATCH 10/13] scripts/qemu-binfmt-conf: Update for sparc64 Richard Henderson
2019-06-13 15:22   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 11/13] tests/tcg/multiarch/linux-test: Fix error check for shmat Richard Henderson
2019-06-13 15:08   ` Laurent Vivier
2019-05-19 20:19 ` [Qemu-devel] [PATCH 12/13] linux-user: Fix shmat emulation by honoring host SHMLBA Richard Henderson
2019-05-22  9:40   ` Laurent Vivier
2019-05-19 20:19 ` Richard Henderson [this message]
2019-05-22  9:45   ` [Qemu-devel] [PATCH 13/13] linux-user: Align mmap_find_vma to host page size Laurent Vivier
2019-06-11 20:53 ` [Qemu-devel] [PATCH 00/13] linux-user: path, clone, sparc, shmat fixes Richard Henderson

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