Messages in this thread | | | From | "Zhang, Chen" <> | Subject | RE: [RFC PATCH 2/9] KVM: x86: Add a kvm-only leaf for RRSBA_CTRL | Date | Thu, 15 Dec 2022 02:59:45 +0000 |
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> -----Original Message----- > From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> > Sent: Thursday, December 15, 2022 5:34 AM > To: Zhang, Chen <chen.zhang@intel.com> > Cc: x86@kernel.org; linux-kernel@vger.kernel.org; kvm@vger.kernel.org; Gao, > Chao <chao.gao@intel.com>; Pawan Gupta > <pawan.kumar.gupta@linux.intel.com>; Paolo Bonzini > <pbonzini@redhat.com>; Christopherson,, Sean <seanjc@google.com>; H. > Peter Anvin <hpa@zytor.com>; Dave Hansen <dave.hansen@linux.intel.com>; > Borislav Petkov <bp@alien8.de>; Ingo Molnar <mingo@redhat.com>; Thomas > Gleixner <tglx@linutronix.de> > Subject: Re: [RFC PATCH 2/9] KVM: x86: Add a kvm-only leaf for RRSBA_CTRL > > On Sun, Dec 11, 2022 at 12:00:39AM +0800, Zhang Chen wrote: > > KVM needs to check if guests can see RRSBA_CTRL. If a guest is using > > retpoline and cannot see RRSBA_CTRL and the host enumerates RRSBA, KVM > > is responsible for setting RRSBA_DIS_S for the guest. > > > > This allows VM migration from parts doesn't enumerates RRSBA to those > > perhaps s/parts doesn't enumerates/parts that do not enumerate/ reads > better?
OK.
> > > that enumerate RRSBA. > > and here maybe s/that enumerate RRSBA/do/ ?
Looks good to me. Thanks for your comments. I will fix patch2/3 in the next version.
Thanks Chen
> > Thanks and BR, > Ricardo
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