linux/arch
Zachary Amsden d7271b14b2 [PATCH] i386: encapsulate copying of pgd entries
Add a clone operation for pgd updates.

This helps complete the encapsulation of updates to page tables (or pages
about to become page tables) into accessor functions rather than using
memcpy() to duplicate them.  This is both generally good for consistency
and also necessary for running in a hypervisor which requires explicit
updates to page table entries.

The new function is:

clone_pgd_range(pgd_t *dst, pgd_t *src, int count);

   dst - pointer to pgd range anwhere on a pgd page
   src - ""
   count - the number of pgds to copy.

   dst and src can be on the same page, but the range must not overlap
   and must not cross a page boundary.

Note that I ommitted using this call to copy pgd entries into the
software suspend page root, since this is not technically a live paging
structure, rather it is used on resume from suspend.  CC'ing Pavel in case
he has any feedback on this.

Thanks to Chris Wright for noticing that this could be more optimal in
PAE compiles by eliminating the memset.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05 00:06:13 -07:00
..
alpha [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
arm [ARM] Fix ARMv6 page table bits 2005-09-01 22:41:55 +01:00
arm26 [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
cris [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
frv [PATCH] frv: Remove export of strtok() 2005-09-05 00:06:01 -07:00
h8300 [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
i386 [PATCH] i386: encapsulate copying of pgd entries 2005-09-05 00:06:13 -07:00
ia64 [IA64] uncached allocator: use generic (not sn2 specific) functions 2005-08-31 14:18:04 -07:00
m32r [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
m68k It wasn't just x86-64 that had hardcoded VM_FAULT_xxx numbers 2005-08-04 08:33:38 -07:00
m68knommu [PATCH] m68knommu: update defconfig for m68knommu 2005-09-02 00:57:30 -07:00
mips [PATCH] mips: fix build warnings 2005-09-05 00:06:08 -07:00
parisc [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
ppc [PATCH] ppc32: cpci690 updates 2005-09-05 00:06:01 -07:00
ppc64 [PATCH] ppc64: replace schedule_timeout() with msleep_interruptible() 2005-09-05 00:06:01 -07:00
s390 [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
sh [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
sh64 [PATCH] arch/sh64/Kconfig: doesn't need it's own LOG_BUF_SHIFT 2005-09-05 00:06:09 -07:00
sparc [SPARC]: remove use of asm/segment.h 2005-08-29 12:45:44 -07:00
sparc64 [SPARC64]: More fully work around Spitfire Errata 51. 2005-08-29 12:46:22 -07:00
um [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
v850 [PATCH] v850: Add show_mem 2005-09-02 00:57:31 -07:00
x86_64 [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
xtensa [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00