Siddha, Suresh B f6c2e3330d [PATCH] x86_64: Unmap NULL during early bootup ... We should zap the low mappings, as soon as possible, so that we can catch kernel bugs more effectively. Previously early boot had NULL mapped and didn't trap on NULL references. This patch introduces boot_level4_pgt, which will always have low identity addresses mapped. Druing boot, all the processors will use this as their level4 pgt. On BP, we will switch to init_level4_pgt as soon as we enter C code and zap the low mappings as soon as we are done with the usage of identity low mapped addresses. On AP's we will zap the low mappings as soon as we jump to C code. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-11-14 19:55:14 -08:00
..
extable.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
fault.c	[PATCH] x86-64: Safe interrupts in oops_begin/end	2005-09-12 10:50:57 -07:00
init.c	[PATCH] x86_64: Unmap NULL during early bootup	2005-11-14 19:55:14 -08:00
ioremap.c	[PATCH] mm: init_mm without ptlock	2005-10-29 21:40:40 -07:00
k8topology.c	[PATCH] x86-64: Support dualcore and 8 socket systems in k8 fallback node parsing	2005-09-12 10:49:56 -07:00
Makefile	[PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options	2005-06-23 09:45:06 -07:00
numa.c	[PATCH] x86_64: Speed up numa_node_id by putting it directly into the PDA	2005-11-14 19:55:14 -08:00
pageattr.c	[PATCH] x86_64: Fix change_page_attr cache flushing	2005-10-10 16:10:33 -07:00
srat.c	[PATCH] x86_64: Speed up numa_node_id by putting it directly into the PDA	2005-11-14 19:55:14 -08:00