linux-kernel - Re: [PATCH 0/4] TDX host: kexec() support

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Message-ID: <073bad3d-7a4e-43da-b9b4-3123ce1e2da5@amd.com>
Date: Tue, 6 Feb 2024 12:56:56 -0600
From: "Kalra, Ashish" <ashish.kalra@....com>
To: "Huang, Kai" <kai.huang@...el.com>, Tom Lendacky
 <thomas.lendacky@....com>, linux-kernel@...r.kernel.org
Cc: x86@...nel.org, dave.hansen@...el.com, kirill.shutemov@...ux.intel.com,
 tglx@...utronix.de, bp@...en8.de, mingo@...hat.com, hpa@...or.com,
 luto@...nel.org, peterz@...radead.org, chao.gao@...el.com, bhe@...hat.com,
 nik.borisov@...e.com, pbonzini@...hat.com
Subject: Re: [PATCH 0/4] TDX host: kexec() support

On 2/5/2024 12:50 AM, Huang, Kai wrote:

>
>
> On 2/02/2024 2:28 am, Tom Lendacky wrote:
>> On 1/31/24 05:31, Huang, Kai wrote:
>>> Currently kexec() support and TDX host are muturally exclusive in the
>>> Kconfig.  This series adds the TDX host kexec support so that they can
>>> work together and can be enabled at the same time in the Kconfig.
>>>
>>> This follows Dave's suggestion to add the CC_ATTR_HOST_MEM_INCOHERENT
>>> attribute to unify both Intel and AMD, instead of having Intel/AMD
>>> specific checks around [1].
>>>
>>> Hi Tom,
>>>
>>> I've tested on my TDX testig machine but I don't have AMD machine to
>>> test.  I highly appreciate if you or any AMD guy can help to review
>>> and/or test this series to make sure I didn't break anything.
>>
>> Hi Kai,
>>
>> I'm adding Ashish to the thread to take a look at this as he's been 
>> focusing on kexec related things recently.
>>
>
> Thanks Tom.
>
> Hi Ashish,
>
> I appreciate if you can help to review and test the first patch. Thanks!

Hello Kai,

Yes, i am currently working on SNP guest kexec support on top of 
Kirill's TDX guest kexec patches, i will have a look your patch-set and 
test and review it.

Thanks, Ashish