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

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Message-ID: <8098cbb8-646e-42b2-a745-163abffb3c73@amd.com>
Date: Mon, 25 Nov 2024 16:46:27 +0530
From: Neeraj Upadhyay <Neeraj.Upadhyay@....com>
To: Borislav Petkov <bp@...en8.de>
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 11/25/2024 3:38 PM, Borislav Petkov wrote:
> On Mon, Nov 25, 2024 at 12:51:36PM +0530, Neeraj Upadhyay wrote:
>> I see most of that flow required. By removing dependency on CONFIG_X86_X2APIC 
>> and enabling SAVIC, I see below boot issues:
> 
> Ok, then please extend the Kconfig help text so that it explicitly calls out
> the fact that the CONFIG_X86_X2APIC dependency is not only build but
> functional one too and that SAVIC relies on X2APIC machinery being present in
> the guest.
> 

Ok, I will update.


- Neeraj

> Thx.
>