linux-kernel - Re: [RFC 01/14] x86/apic: Add new driver for Secure AVIC

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Message-ID: <20241121105344.GBZz8ROFlE8Qx2JuLB@fat_crate.local>
Date: Thu, 21 Nov 2024 11:53:44 +0100
From: Borislav Petkov <bp@...en8.de>
To: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
Cc: "Melody (Huibo) Wang" <huibo.wang@....com>,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...hat.com,
	dave.hansen@...ux.intel.com, Thomas.Lendacky@....com,
	nikunj@....com, Santosh.Shukla@....com, Vasant.Hegde@....com,
	Suravee.Suthikulpanit@....com, David.Kaplan@....com, x86@...nel.org,
	hpa@...or.com, peterz@...radead.org, seanjc@...gle.com,
	pbonzini@...hat.com, kvm@...r.kernel.org
Subject: Re: [RFC 01/14] x86/apic: Add new driver for Secure AVIC

On Thu, Nov 21, 2024 at 01:33:29PM +0530, Neeraj Upadhyay wrote:
> As SAVIC's guest APIC register accesses match x2avic (which uses x2APIC MSR
> interface in guest), the x2apic common flow need to be executed in the
> guest.

How much of that "common flow" is actually needed by SAVIC?

-- 
Regards/Gruss,
    Boris.

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