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| author | Kirill A. Shutemov <[email protected]> | 2018-02-14 14:16:48 +0300 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-02-14 13:11:13 +0100 |
| commit | b83ce5ee91471d19c403ff91227204fb37c95fb2 (patch) | |
| tree | 530830b459b756cf431c27cc2000b43b58cdd558 /tools/perf/scripts/python | |
| parent | 116fef6408599dd6ff6996235c50aa692e9b5631 (diff) | |
x86/mm/64: Make __PHYSICAL_MASK_SHIFT always 52
__PHYSICAL_MASK_SHIFT is used to define the mask that helps to extract
physical address from a page table entry.
Although real physical address space available may differ between
machines, it's safe to use 52 as __PHYSICAL_MASK_SHIFT. Unused bits
above log2(MAXPHYADDR) up to bit 51 are reserved and must be 0.
Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions