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| author | Andy Lutomirski <luto@kernel.org> | 2017-09-06 19:54:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-06 20:12:57 -0700 |
| commit | 1c9fe4409ce3e9c78b1ed96ee8ed699d4f03bf33 (patch) | |
| tree | b0a9e9d2d4a7062dc6f20c463109af14e56c9c7e /arch/xtensa | |
| parent | 72c0098d92cedb11c7e0151e84918840a4e96b31 (diff) | |
x86/mm: Document how CR4.PCIDE restore works
While debugging a problem, I thought that using
cr4_set_bits_and_update_boot() to restore CR4.PCIDE would be
helpful. It turns out to be counterproductive.
Add a comment documenting how this works.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/xtensa')
0 files changed, 0 insertions, 0 deletions