Commit b035ffd1 authored by Juergen Lock's avatar Juergen Lock Committed by Blue Swirl
Browse files

Fix bsd-user qemu_vmalloc() host page protection code 



Just do the same as linux-user does.

Signed-off-by: default avatarJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: default avatarBlue Swirl <blauwirbel@gmail.com>
parent d1839d73

bsd-user/mmap.c

+2 −3
Original line number Diff line number Diff line
@@ -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);

    }