aboutsummaryrefslogtreecommitdiffstats
path: root/bsd-user
diff options
context:
space:
mode:
authorJuergen Lock <nox@jelal.kn-bremen.de>2010-03-25 22:11:17 +0100
committerBlue Swirl <blauwirbel@gmail.com>2010-03-30 17:44:51 +0000
commitb035ffd11813524d7c0e44354f5c4bdd281f4b37 (patch)
tree3e030559fb464aec7b38acb39195e9f7c07731bd /bsd-user
parentd1839d7367303e38e603bc0371d65648b4480078 (diff)
Fix bsd-user qemu_vmalloc() host page protection code
Just do the same as linux-user does. Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'bsd-user')
-rw-r--r--bsd-user/mmap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c
index 139cd3f44..207c774fb 100644
--- a/bsd-user/mmap.c
+++ b/bsd-user/mmap.c
@@ -77,16 +77,15 @@ void mmap_unlock(void)
void *qemu_vmalloc(size_t size)
{
void *p;
- unsigned long addr;
mmap_lock();
/* Use map and mark the pages as used. */
p = mmap(NULL, size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
- addr = (unsigned long)p;
- if (addr == (target_ulong) addr) {
+ if (h2g_valid(p)) {
/* Allocated region overlaps guest address space.
This may recurse. */
+ abi_ulong addr = h2g(p);
page_set_flags(addr & TARGET_PAGE_MASK, TARGET_PAGE_ALIGN(addr + size),
PAGE_RESERVED);
}