[Qemu-trivial] [PATCH] bsd-user: fix compile failure

[Peter Maydell <peter.maydell@linaro.org>]

bsd-user doesn't actually support reserving a memory area for the
guest address space, but we need to at least define the reserved_va
global so that cpu-all.h's RESERVED_VA macro will work correctly.

This fixes a compilation error introduced in commit
which added a use of RESERVED_VA to h2g_valid().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 bsd-user/main.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/bsd-user/main.c b/bsd-user/main.c
index 48cb715..0689e38 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -41,6 +41,7 @@ int singlestep;
 unsigned long mmap_min_addr;
 unsigned long guest_base;
 int have_guest_base;
+unsigned long reserved_va;
 #endif
 
 static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
-- 
1.7.1