Messages in this thread | | | Date | Mon, 10 Oct 2011 23:13:00 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH RESEND] CPU hotplug,x86 Microcode: Don't request microcode from userspace unnecessarily |
| |
On Mon, Oct 10, 2011 at 04:58:02PM -0400, Rafael J. Wysocki wrote: > On Sunday, October 09, 2011, Srivatsa S. Bhat wrote: > > Requesting the microcode from userspace *every time* when onlining CPUs > > (during a CPU hotplug operation) is unnecessary. > > > > So, this patch ensures that once the kernel gets the microcode after booting, > > it is not freed nor invalidated when a CPU goes offline, so that it can be > > reused when that CPU comes back online, without requesting userspace for it > > again. As a result, the CPU hotplug operations become faster as well. > > > > Tested-by: Borislav Petkov <bp@amd64.org> > > Acked-by: Borislav Petkov <bp@amd64.org> > > > > Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> > > Fine by me. I wonder who should take this?
Ingo, most probably. ucode stuff goes in through -tip.
-- Regards/Gruss, Boris.
Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach GM: Alberto Bozzo Reg: Dornach, Landkreis Muenchen HRB Nr. 43632 WEEE Registernr: 129 19551
| |