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References: <20160603060944.17373-1-haozhong.zhang@intel.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <ef05ce65-2ecf-f7d4-ef1b-621e0c434b89@redhat.com>
Date: Mon, 13 Jun 2016 12:07:14 +0200
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Subject: Re: [Qemu-devel] [PATCH v3 1/2] target-i386: KVM: add basic Intel
 LMCE support
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To: =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>, qemu-devel@nongnu.org, Richard Henderson <rth@twiddle.net>, Eduardo Habkost <ehabkost@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>, "Michael S . Tsirkin" <mst@redhat.com>, kvm@vger.kernel.org, Boris Petkov <bp@suse.de>, Tony Luck <tony.luck@intel.com>, Andi Kleen <andi.kleen@intel.com>, Ashok Raj <ashok.raj@intel.com>



On 13/06/2016 12:01, Haozhong Zhang wrote:
> > I would prefer to avoid having to change the firmware (SeaBIOS and OVMF)
> > every time a new bit is added.  Using fw_cfg makes it possible to
> > develop the feature in the firmware once and for all.
> 
> Thanks for the explanation! Is it proper to add a key in fw_cfg for
> this purpose, e.g FW_CFG_MSR_FEATURE_CONTROL to pass bits that are
> supposed to be set by firmware?

We usually add new files now, so it would be a new file named
"etc/msr-feature-control".

Thanks,

Paolo