linux-kernel - Re: [PATCH 04/26] KVM: x86: Add a kvm_x86_ops hook to query virtualized MSR support

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Date:   Wed, 5 Feb 2020 07:35:08 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:     Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH 04/26] KVM: x86: Add a kvm_x86_ops hook to query
 virtualized MSR support

On Wed, Feb 05, 2020 at 04:22:48PM +0100, Vitaly Kuznetsov wrote:
> Sean Christopherson <sean.j.christopherson@...el.com> writes:
> 
> > On Wed, Feb 05, 2020 at 03:34:29PM +0100, Vitaly Kuznetsov wrote:
> >> Sean Christopherson <sean.j.christopherson@...el.com> writes:
> >> 
> >> Reviewed-by: Vitaly Kuznetsov <vkuznets@...hat.com>
> >
> > Stooooooop!  Everything from this point on is obsoleted by kvm_cpu_caps!
> >
> 
> Oops, this was only a week old series! Patches are rottening fast
> nowadays!

Sorry :-(

I dug deeper into the CPUID crud after posting this series because I really
didn't like the end result for vendor-specific leafs, and ended up coming
up with (IMO) a much more elegant solution.

https://lkml.kernel.org/r/20200201185218.24473-1-sean.j.christopherson@intel.com/

or on patchwork

https://patchwork.kernel.org/cover/11361361/