linux-kernel - Re: [RFC PATCH 00/67] KVM: X86: TDX support

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Date:   Fri, 21 May 2021 09:09:06 -0500
From:   Connor Kuehl <ckuehl@...hat.com>
To:     Isaku Yamahata <isaku.yamahata@...il.com>
Cc:     isaku.yamahata@...el.com, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [RFC PATCH 00/67] KVM: X86: TDX support

On 5/20/21 4:31 AM, Isaku Yamahata wrote:
> On Wed, May 19, 2021 at 11:37:23AM -0500,
> Connor Kuehl <ckuehl@...hat.com> wrote:
> 
>> On 11/16/20 12:25 PM, isaku.yamahata@...el.com wrote:
>>> From: Isaku Yamahata <isaku.yamahata@...el.com>
>>>
>>> * What's TDX?
>>> TDX stands for Trust Domain Extensions which isolates VMs from
>>> the virtual-machine manager (VMM)/hypervisor and any other software on
>>> the platform. [1]
>>> For details, the specifications, [2], [3], [4], [5], [6], [7], are
>>> available.
>>>
>>>
>>> * The goal of this RFC patch
>>> The purpose of this post is to get feedback early on high level design
>>> issue of KVM enhancement for TDX. The detailed coding (variable naming
>>> etc) is not cared of. This patch series is incomplete (not working).
>>> Although multiple software components, not only KVM but also QEMU,
>>> guest Linux and virtual bios, need to be updated, this includes only
>>> KVM VMM part. For those who are curious to changes to other
>>> component, there are public repositories at github. [8], [9]
>>
>> Hi,
>>
>> I'm planning on reading through this patch set; but before I do, since
>> it's been several months and it's a non-trivially sized series, I just
>> wanted to confirm that this is the latest revision of the RFC that
>> you'd like comments on. Or, if there's a more recent series that I've
>> missed, I would be grateful for a pointer to it.
> 
> Hi. I'm planning to post rebased/updated v2 soon. Hopefully next week.
> So please wait for it. It will include non-trivial change and catch up for the updated spec.

That sounds great. I'll keep an eye out.

Thank you!

Connor