diff options
| author | Mike Larkin <mlarkin@cvs.openbsd.org> | 2015-04-24 19:53:44 +0000 |
|---|---|---|
| committer | Mike Larkin <mlarkin@cvs.openbsd.org> | 2015-04-24 19:53:44 +0000 |
| commit | e17ec0a78e0c17231d41c15bbb1b7421eb83618c (patch) | |
| tree | fd2e7e9dcaa0bdd21552567e27e475a66a49d2ae /sys | |
| parent | 5fdec7cc17f1bb36dcb4ecc044923d80e273a218 (diff) | |
Enable PAE mode for those CPUs that support it. This allows us to use the
NX bit for userland and kernel W^X. Unlike the previous c.2008 PAE
experiment, this does not provide > 4GB phys ram on i386 - PAE is solely
being used for NX capability this time. If you need > 4GB phys, use amd64.
Userland W^X was committed yesterday by kettenis@, and we will shortly
start reworking the kernel like we did for amd64 a few months back to get
kernel W^X.
This has been in snaps for a few days and tested by kettenis and myself
as well.
ok deraadt@, kettenis@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/i386/i386/autoconf.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/sys/arch/i386/i386/autoconf.c b/sys/arch/i386/i386/autoconf.c index a2f2b2958c3..e58b77a4248 100644 --- a/sys/arch/i386/i386/autoconf.c +++ b/sys/arch/i386/i386/autoconf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: autoconf.c,v 1.93 2015/04/12 18:37:53 mlarkin Exp $ */ +/* $OpenBSD: autoconf.c,v 1.94 2015/04/24 19:53:43 mlarkin Exp $ */ /* $NetBSD: autoconf.c,v 1.20 1996/05/03 19:41:56 christos Exp $ */ /*- @@ -127,9 +127,7 @@ cpu_configure(void) #ifdef KVM86 kvm86_init(); #endif -#ifdef notyet pmap_bootstrap_pae(); -#endif #if defined(MULTIPROCESSOR) || \ (NACPI > 0 && !defined(SMALL_KERNEL)) |