Rusty Russell 78be3706b2 [PATCH] i386: Allow a kernel not to be in ring 0 ... We allow for the fact that the guest kernel may not run in ring 0. This requires some abstraction in a few places when setting %cs or checking privilege level (user vs kernel). This is Chris' [RFC PATCH 15/33] move segment checks to subarch, except rather than using #define USER_MODE_MASK which depends on a config option, we use Zach's more flexible approach of assuming ring 3 == userspace. I also used "get_kernel_rpl()" over "get_kernel_cs()" because I think it reads better in the code... 1) Remove the hardcoded 3 and introduce #define SEGMENT_RPL_MASK 3 2) Add a get_kernel_rpl() macro, and don't assume it's zero. And: Clean up of patch for letting kernel run other than ring 0: a. Add some comments about the SEGMENT_IS_*_CODE() macros. b. Add a USER_RPL macro. (Code was comparing a value to a mask in some places and to the magic number 3 in other places.) c. Add macros for table indicator field and use them. d. Change the entry.S tests for LDT stack segment to use the macros Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andi Kleen <ak@suse.de>		2006-09-26 10:52:39 +02:00
..
boot_ioremap.c	[PATCH] i386 bootioremap / kexec fix	2006-09-25 17:38:35 -07:00
discontig.c	[PATCH] i386: initialize end-of-memory variables as early as possible	2006-09-26 10:52:31 +02:00
extable.c	[PATCH] i386: Allow a kernel not to be in ring 0	2006-09-26 10:52:39 +02:00
fault.c	[PATCH] i386: Allow a kernel not to be in ring 0	2006-09-26 10:52:39 +02:00
highmem.c	[PATCH] i386: initialize end-of-memory variables as early as possible	2006-09-26 10:52:31 +02:00
hugetlbpage.c
init.c	[PATCH] i386: Replace i386 open-coded cmdline parsing with	2006-09-26 10:52:32 +02:00
ioremap.c
Makefile
mmap.c
pageattr.c
pgtable.c