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
..
boot
crypto
kernel	[PATCH] x86_64: Unmap NULL during early bootup	2005-11-14 19:55:14 -08:00
lib
mach-default
mach-es7000
mach-generic
mach-visws
mach-voyager
math-emu
mm
oprofile
pci	[PATCH] toshiba_ohci1394_dmi_table should be __devinitdata, not __devinit	2005-11-01 21:27:22 -08:00
power
defconfig
Kconfig	[PATCH] i386: CONFIG_PC removal	2005-10-31 09:20:54 -08:00
Kconfig.cpu
Kconfig.debug
Makefile
Makefile.cpu