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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-31 23:00:45 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-31 23:00:45 +0400 |
| commit | 918d80a136430aeb23659aa75f8b415090500667 (patch) | |
| tree | d11d394f63ed9ea0d1830b87cae6d5200501a7cd /Documentation | |
| parent | 26a5c0dfbc9c4b1c455821c0a0ea6d6116082397 (diff) | |
| parent | 69f2366c9456d0ce784cf5aba87ee77eeadc1d5e (diff) | |
| download | linux-918d80a136430aeb23659aa75f8b415090500667.tar.xz | |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu handling changes from Ingo Molnar:
"Bigger changes:
- Intel CPU hardware-enablement: new vector instructions support
(AVX-512), by Fenghua Yu.
- Support the clflushopt instruction and use it in appropriate
places. clflushopt is similar to clflush but with more relaxed
ordering, by Ross Zwisler.
- MSR accessor cleanups, by Borislav Petkov.
- 'forcepae' boot flag for those who have way too much time to spend
on way too old Pentium-M systems and want to live way too
dangerously, by Chris Bainbridge"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, cpu: Add forcepae parameter for booting PAE kernels on PAE-disabled Pentium M
Rename TAINT_UNSAFE_SMP to TAINT_CPU_OUT_OF_SPEC
x86, intel: Make MSR_IA32_MISC_ENABLE bit constants systematic
x86, Intel: Convert to the new bit access MSR accessors
x86, AMD: Convert to the new bit access MSR accessors
x86: Add another set of MSR accessor functions
x86: Use clflushopt in drm_clflush_virt_range
x86: Use clflushopt in drm_clflush_page
x86: Use clflushopt in clflush_cache_range
x86: Add support for the clflushopt instruction
x86, AVX-512: Enable AVX-512 States Context Switch
x86, AVX-512: AVX-512 Feature Detection
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 7116fda7077f..06600cc9a26c 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1011,6 +1011,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. parameter will force ia64_sal_cache_flush to call ia64_pal_cache_flush instead of SAL_CACHE_FLUSH. + forcepae [X86-32] + Forcefully enable Physical Address Extension (PAE). + Many Pentium M systems disable PAE but may have a + functionally usable PAE implementation. + Warning: use of this parameter will taint the kernel + and may cause unknown problems. + ftrace=[tracer] [FTRACE] will set and start the specified tracer as early as possible in order to facilitate early |