diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2018-04-17 08:45:36 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-04-23 09:16:31 +0000 |
| commit | 2b72e6bdfd63737d03efd02cb7f66a769243727f (patch) | |
| tree | b96fc47b44469e4054abea1f312d68590c9aad7d /util/hugo | |
| parent | 9a1bb36137921c751173d6726a06019c84b171f5 (diff) | |
util/x86/x86_page_tables: update PAT mapping to match linux
The linux kernel uses the following mapping for PAT entries:
PTE encoding:
PAT
|PCD
||PWT PAT
||| slot
000 0 WB : _PAGE_CACHE_MODE_WB
001 1 WC : _PAGE_CACHE_MODE_WC
010 2 UC-: _PAGE_CACHE_MODE_UC_MINUS
011 3 UC : _PAGE_CACHE_MODE_UC
100 4 WB : Reserved
101 5 WP : _PAGE_CACHE_MODE_WP
110 6 UC-: Reserved
111 7 WT : _PAGE_CACHE_MODE_WT
Update the page table generator to match what the linux kernel is
using. This just makes things consistent with linux.
BUG=b:72728953
Change-Id: Ie5ddab5c86d4e03688d7e808fcae34ce954b64f9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25711
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Diffstat (limited to 'util/hugo')
0 files changed, 0 insertions, 0 deletions