From cf8c9aac5243f506a1a3e8e284414f311cde04f5 Mon Sep 17 00:00:00 2001
From: Alistair Francis <alistair.francis@xilinx.com>
Date: Wed, 17 Jan 2018 10:51:49 -0800
Subject: [PATCH] linux-user: Fix webkitgtk hangs on 32-bit x86 target

Since commit "linux-user: Tidy and enforce reserved_va initialization"
(18e80c55bb6ec17c05ec0ba717ec83933c2bfc07) the Yocto webkitgtk build
hangs when cross compiling for 32-bit x86 on a 64-bit x86 machine using
musl.

To fix the issue reduce the MAX_RESERVED_VA macro to be a closer match
to what it was before the problematic commit.

Upstream-Status: Submitted http://lists.gnu.org/archive/html/qemu-devel/2018-01/msg04185.html
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>

---
 linux-user/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-user/main.c b/linux-user/main.c
index 6ff7851e..ebff0485 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -78,7 +78,7 @@ int have_guest_base;
       (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32))
 /* There are a number of places where we assign reserved_va to a variable
    of type abi_ulong and expect it to fit.  Avoid the last page.  */
-#   define MAX_RESERVED_VA(CPU)  (0xfffffffful & TARGET_PAGE_MASK)
+#   define MAX_RESERVED_VA(CPU)  (0x7ffffffful & TARGET_PAGE_MASK)
 #  else
 #   define MAX_RESERVED_VA(CPU)  (1ul << TARGET_VIRT_ADDR_SPACE_BITS)
 #  endif