Re: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-11 Thread Borislav Petkov
Hi Scotty, On Wed, Feb 11, 2015 at 11:39:32AM -0700, Scotty Bauer wrote: > For what its worth I tried it out and it works fine on my end. > > Thanks for doing the hard work for me, Boris. Also, thanks for a pointer to > the alternatives. > > I think it may be worth doing a patch that is almost

Re: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-11 Thread Scotty Bauer
things consistent. I can work on that over the weekend. --Scotty On 02/06/2015 09:13 AM, Borislav Petkov wrote: > From: Borislav Petkov > Subject: [PATCH] x86, smpboot: Call CLFLUSH only on > X86_BUG_CLFLUSH_MONITOR-affected CPUs > > Make the AAI65 erratum workaround for Xeon 740

Re: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-11 Thread Scotty Bauer
things consistent. I can work on that over the weekend. --Scotty On 02/06/2015 09:13 AM, Borislav Petkov wrote: From: Borislav Petkov b...@suse.de Subject: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs Make the AAI65 erratum workaround for Xeon 7400

Re: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-11 Thread Borislav Petkov
Hi Scotty, On Wed, Feb 11, 2015 at 11:39:32AM -0700, Scotty Bauer wrote: For what its worth I tried it out and it works fine on my end. Thanks for doing the hard work for me, Boris. Also, thanks for a pointer to the alternatives. I think it may be worth doing a patch that is almost

[PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-06 Thread Borislav Petkov
From: Borislav Petkov Subject: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs Make the AAI65 erratum workaround for Xeon 7400 machines only instead of punishing all CPUs doing idle with MWAIT with the CLFLUSH penalty. Based on a patch originally by Scotty

[PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs

2015-02-06 Thread Borislav Petkov
From: Borislav Petkov b...@suse.de Subject: [PATCH] x86, smpboot: Call CLFLUSH only on X86_BUG_CLFLUSH_MONITOR-affected CPUs Make the AAI65 erratum workaround for Xeon 7400 machines only instead of punishing all CPUs doing idle with MWAIT with the CLFLUSH penalty. Based on a patch originally