|| ||email@example.com, firstname.lastname@example.org, email@example.com,
firstname.lastname@example.org, email@example.com, firstname.lastname@example.org,
email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org|
|| ||[patch 00/11] PAT x86: PAT support for x86|
|| ||Thu, 10 Jan 2008 10:48:40 -0800|
This series is heavily derived from the PAT patchset by Eric Biederman and
This patchset is a followup of "PAT support for X86_64"
Things changed from the above (Dec 13 2007) version:
* PAT mappings now used are - (0,WB) (1,WT) (2,WC) (3,UC).
* Covers both i386 and x86_64.
* Resolve the /sysfs issue by exporting wc and uc interfaces.
* Piggyback PAT initialization on existing MTRR initialization as they
have same setup rules.
* Avoid early table allocation problem for x86_64 by doing the reserved
region pruning later in the boot. Handle both memory identity mapping and
kernel test mapping.
* Handle fork() and /dev/mem mapping and unmapping cases.
Patchset is against Ingo's x86 branch from 2 days ago. Will need some merging
effort with Andi's CPA changes and few other changes like pgtable.h unification.
Not mapping reserved region in identity map is a sort of big change that can
potentially have side-effects on drivers (especially on x86_64), that
assume entire address range is mapped in identity map and use __va to
access reserved regions instead of ioremap/early_ioremap. We have
changed few such common cases, but there can be more in /drivers land.
Signed-off-by: Venkatesh Pallipadi <email@example.com>
Signed-off-by: Suresh Siddha <firstname.lastname@example.org>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to email@example.com
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/