Re: [PATCH 1/3] x86, random: Enable the RDSEED instruction

2014-03-05 Thread Ingo Molnar
* H. Peter Anvin wrote: > From: "H. Peter Anvin" > > Upcoming Intel silicon adds a new RDSEED instruction. Whereas RDRAND > returns output from a PRNG, the RDSEED instruction returns fully > conditioned entropy that is suitable for use as seeds to a PRNG. > > The RDSEED instruction takes

Re: [PATCH 1/3] x86, random: Enable the RDSEED instruction

2014-03-05 Thread Ingo Molnar
* H. Peter Anvin h...@linux.intel.com wrote: From: H. Peter Anvin h...@linux.intel.com Upcoming Intel silicon adds a new RDSEED instruction. Whereas RDRAND returns output from a PRNG, the RDSEED instruction returns fully conditioned entropy that is suitable for use as seeds to a PRNG.

[PATCH 1/3] x86, random: Enable the RDSEED instruction

2014-03-04 Thread H. Peter Anvin
From: "H. Peter Anvin" Upcoming Intel silicon adds a new RDSEED instruction. Whereas RDRAND returns output from a PRNG, the RDSEED instruction returns fully conditioned entropy that is suitable for use as seeds to a PRNG. The RDSEED instruction takes the same time to execute as RDRAND, but

[PATCH 1/3] x86, random: Enable the RDSEED instruction

2014-03-04 Thread H. Peter Anvin
From: H. Peter Anvin h...@linux.intel.com Upcoming Intel silicon adds a new RDSEED instruction. Whereas RDRAND returns output from a PRNG, the RDSEED instruction returns fully conditioned entropy that is suitable for use as seeds to a PRNG. The RDSEED instruction takes the same time to execute