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Subject: Re: [PATCH 1/2] KVM: X86: Move ignore_msrs handling upper the stack
To:     Peter Xu <peterx@redhat.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>
Cc:     linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        Vitaly Kuznetsov <vkuznets@redhat.com>
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 <20200625162540.GC3437@linux.intel.com> <20200626180732.GB175520@xz-x1>
 <20200626181820.GG6583@linux.intel.com>
 <47b90b77-cf03-6087-b25f-fcd2fd313165@redhat.com>
 <20200630154726.GD7733@linux.intel.com> <20200709182220.GG199122@xz-x1>
From:   Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <7aa46e68-5780-2698-67f5-425693478fe1@redhat.com>
Date:   Thu, 9 Jul 2020 20:24:03 +0200
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On 09/07/20 20:22, Peter Xu wrote:
>>> So I think Peter's patch is fine, but (possibly on top as a third patch)
>>> __must_check should be added to MSR getters and setters.  Also one
>>> possibility is to return -EINVAL for invalid MSRs.
> Yeah I can add another patch for that.  Also if to repost, I tend to also
> introduce KVM_MSR_RET_[OK|ERROR] too, which seems to be cleaner when we had
> KVM_MSR_RET_INVALID.

You can use either that or 0/1/-EINVAL.  I would be fine with that to
keep the patch small.

Paolo