Re: Bull Mountain (IvyBridge +) random number generator

2012-10-13 Thread Harald Schmalzbauer
schrieb Konstantin Belousov am 12.10.2012 18:48 (localtime): On Fri, Oct 12, 2012 at 10:50:55AM +0200, Harald Schmalzbauer wrote: ... Try the stable/9 instead. The code was merged in r240950. There was a bug in the original patch with the similar description. Thanks, it seems to be working

Re: Bull Mountain (IvyBridge +) random number generator

2012-10-12 Thread Harald Schmalzbauer
schrieb Konstantin Belousov am 02.09.2012 12:34 (localtime): It is relatively well known that Ivy Bridge CPUs (Core iX 3XXX) have built-in hardware random number generator, which is claimed to be both very fast and high quality. Generator is accessible using non-privileged RDRAND instruction.

Re: Bull Mountain (IvyBridge +) random number generator

2012-10-12 Thread Steven Hartland
- Original Message - From: Harald Schmalzbauer h.schmalzba...@omnilan.de ... I guess using RDRAND in an hypervisor environment should make no difference but please correct me if I'm wrong. Try compiling your kernel with:- no options PADLOCK_RNG no options IVY_RNG Or commenting the

Re: Bull Mountain (IvyBridge +) random number generator

2012-10-12 Thread Konstantin Belousov
On Fri, Oct 12, 2012 at 10:50:55AM +0200, Harald Schmalzbauer wrote: schrieb Konstantin Belousov am 02.09.2012 12:34 (localtime): It is relatively well known that Ivy Bridge CPUs (Core iX 3XXX) have built-in hardware random number generator, which is claimed to be both very fast and high

Re: Bull Mountain (IvyBridge +) random number generator

2012-09-06 Thread Xin Li
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On 09/02/12 03:34, Konstantin Belousov wrote: It is relatively well known that Ivy Bridge CPUs (Core iX 3XXX) have built-in hardware random number generator, which is claimed to be both very fast and high quality. Generator is accessible using

Bull Mountain (IvyBridge +) random number generator

2012-09-02 Thread Konstantin Belousov
It is relatively well known that Ivy Bridge CPUs (Core iX 3XXX) have built-in hardware random number generator, which is claimed to be both very fast and high quality. Generator is accessible using non-privileged RDRAND instruction. It is claimed that CPU performs sanitization of the random