On Sun, Mar 19, 2017 at 04:58:40PM +0100, Dimitry Andric wrote:
> On 19 Mar 2017, at 13:36, Rozhuk Ivan <rozhuk...@gmail.com> wrote:
> > On Fri, 17 Mar 2017 17:53:24 +0100
> > "O. Hartmann" <ohartm...@walstatt.org> wrote:
> >>> Other OS detect AES-NI on this server?
> >> I havn't ried so far, the box is in heavy use. I'd like to check with
> >> some live USB drive versions and report later.
> > You can write or find some program that read and decode CPUID and check
> > AES-NI support without reboot.
> The kernel already does this at boot time, and show the results, e.g.:
> CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (3391.68-MHz 686-class CPU)
> Origin="GenuineIntel" Id=0x306a9 Family=0x6 Model=0x3a Stepping=9
> AMD Features=0x28100000<NX,RDTSCP,LM>
> AMD Features2=0x1<LAHF>
> Structured Extended Features=0x202<TSCADJ,ERMS>
> TSC: P-state invariant
> Unfortunately the kernel does not expose this information via any
> sysctl, so some time after booting it may have "scrolled away" in
It is quite pointless to expose the information through a sysctl, because
it is non-privileged and is available to usermode via execution of the
CPUID instruction, which is utilized by utilities listed below.
Also, look at cpucontrol -i.
> In that case, you can use either the misc/cpuid or the sysutils/cpuid
> ports to show this information, and even quite a lot more.
Or better, sysutils/x86info.
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