linux-kernel - Re: [PATCH v4 00/19] x86/cpu: Clean up handling of VMX features

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Date:   Fri, 20 Dec 2019 19:44:54 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Tony Luck <tony.luck@...el.com>,
        Tony W Wang-oc <TonyWWang-oc@...oxin.com>,
        Len Brown <lenb@...nel.org>, Shuah Khan <shuah@...nel.org>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        linux-edac@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Subject: Re: [PATCH v4 00/19] x86/cpu: Clean up handling of VMX features

On Thu, Dec 12, 2019 at 03:07:55PM +0100, Borislav Petkov wrote:
> On Wed, Nov 27, 2019 at 05:39:57PM -0800, Sean Christopherson wrote:
> > Clean up a handful of interrelated warts in the kernel's handling of VMX:
> > 
> >   - Enable VMX in IA32_FEATURE_CONTROL during boot instead of on-demand
> >     during KVM load to avoid future contention over IA32_FEATURE_CONTROL.
> > 
> >   - Rework VMX feature reporting so that it is accurate and up-to-date,
> >     now and in the future.
> > 
> >   - Consolidate code across CPUs that support VMX.
> 
> Ok, this is shaping up slowly to be upstream-ready, AFAICT.
> 
> How are we merging the next revision, after the minor things have been
> taken care of? Through tip?
> 
> Paolo?

Tip would be my preference, we'll need to rebase the SGX series on this
and tip would probably be slightly more convenient for that.