| commit | b40827fa7268fda8a62490728a61c2856f33830b | |
| author | Borislav Petkov <bp@alien8.de> | |
| Sat, 28 Aug 2010 13:58:33 +0000 (28 15:58 +0200) | ||
| committer | H. Peter Anvin <hpa@linux.intel.com> | |
| Wed, 20 Oct 2010 21:23:55 +0000 (20 14:23 -0700) | ||
| tree | ae16ce8206c3d72ca672a92a46dc0725faba1ced | treesnapshot (tar.gz zip) |
| parent | d25e6b0b326278a1096e8334584c3e64517057a3 | commitdiff |
x86-32, mm: Add an initial page table for core bootstrapping
This patch adds an initial page table with low mappings used exclusively
for booting APs/resuming after ACPI suspend/machine restart. After this,
there's no need to add low mappings to swapper_pg_dir and zap them later
or create own swsusp PGD page solely for ACPI sleep needs - we have
initial_page_table for that.
Signed-off-by: Borislav Petkov <bp@alien8.de>
LKML-Reference: <20101020070526.GA9588@liondog.tnic>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This patch adds an initial page table with low mappings used exclusively
for booting APs/resuming after ACPI suspend/machine restart. After this,
there's no need to add low mappings to swapper_pg_dir and zap them later
or create own swsusp PGD page solely for ACPI sleep needs - we have
initial_page_table for that.
Signed-off-by: Borislav Petkov <bp@alien8.de>
LKML-Reference: <20101020070526.GA9588@liondog.tnic>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>