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| author | Tim Chen <tim.c.chen@linux.intel.com> | 2015-08-21 14:56:46 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-08-22 11:17:31 +0200 |
| commit | 488ca7d72d974e3c00ae73ed9f947590680bdf00 (patch) | |
| tree | 78c6c9356cb34f2ffcdb112fef19a94d3893303a /tools | |
| parent | 3243f50b0c564a1b492defebe7218d26a2b811c9 (diff) | |
| download | op-kernel-dev-488ca7d72d974e3c00ae73ed9f947590680bdf00.zip op-kernel-dev-488ca7d72d974e3c00ae73ed9f947590680bdf00.tar.gz | |
x86/cpufeatures: Enable cpuid for Intel SHA extensions
Add Intel CPUID for Intel Secure Hash Algorithm Extensions. This feature
provides new instructions for accelerated computation of SHA-1 and SHA-256.
This allows the feature to be shown in the /proc/cpuinfo for cpus that
support it.
Refer to SHA extension programming guide in chapter 8.2 of the Intel
Architecture Instruction Set Extensions Programming reference
for definition of this feature's cpuid: CPUID.(EAX=07H, ECX=0):EBX.SHA [bit 29] = 1
https://software.intel.com/sites/default/files/managed/07/b7/319433-023.pdf
Originally-by: Chandramouli Narayanan <mouli_7982@yahoo.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Link: http://lkml.kernel.org/r/1440194206.3940.6.camel@schen9-mobl2
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions
