linux-kernel - Re: [PATCH 0/4] x86/sev: Rework SNP Guest Request

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Message-ID: <33e24f7a-427d-43ef-ac48-ff665e1c1914@amd.com>
Date: Thu, 5 Jun 2025 12:40:15 +1000
From: Alexey Kardashevskiy <aik@....com>
To: Borislav Petkov <bp@...en8.de>
Cc: linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H. Peter Anvin" <hpa@...or.com>, Nikunj A Dadhania <nikunj@....com>,
 Ard Biesheuvel <ardb@...nel.org>, Brijesh Singh <brijesh.singh@....com>,
 Ashish Kalra <ashish.kalra@....com>, Paolo Bonzini <pbonzini@...hat.com>,
 Michael Roth <michael.roth@....com>,
 Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>,
 Liam Merwick <liam.merwick@...cle.com>,
 Tom Lendacky <thomas.lendacky@....com>, x86@...nel.org
Subject: Re: [PATCH 0/4] x86/sev: Rework SNP Guest Request

On 7/5/25 04:55, Tom Lendacky wrote:
> On 5/5/25 09:12, Alexey Kardashevskiy wrote:
>> Started as a part of the fix for
>> ae596615d93d ("virt: sev-guest: Reduce the scope of SNP command mutex")
>>
>> these are the remainder of followup fixes/improvements as
>> the SNP Guest Request code evolved enough to make it a bit hard to
>> follow.
>>
>>
>> This is based on sha1
>> 6c201ee95a30 Ingo Molnar "Merge branch into tip/master: 'x86/sgx'".
>>
>> Please comment. Thanks.
>>
>>
>>
>> Alexey Kardashevskiy (4):
>>    virt: sev-guest: Contain snp_guest_request_ioctl in sev-guest
>>    x86/sev: Allocate request in TSC_INFO_REQ on stack
>>    x86/sev: Document requirement for linear mapping of Guest Request
>>      buffers
>>    x86/sev: Drop unnecessary parameter in snp_issue_guest_request
>>
>>   arch/x86/include/asm/sev.h              | 10 ++-
>>   arch/x86/coco/sev/core.c                | 73 +++++++++-----------
>>   drivers/virt/coco/sev-guest/sev-guest.c |  9 ++-
>>   3 files changed, 44 insertions(+), 48 deletions(-)
> 
> For the series:
> 
> Reviewed-by: Tom Lendacky <thomas.lendacky@....com>

Ping?

> 
>>

-- 
Alexey