mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: "Pratik R. Sampat" <prsampat@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: kvm@vger.kernel.org, x86@kernel.org,
	linux-kernel@vger.kernel.org, tglx@kernel.org, mingo@redhat.com,
	dave.hansen@linux.intel.com, seanjc@google.com,
	pbonzini@redhat.com, thomas.lendacky@amd.com,
	kim.phillips@amd.com, nikunj@amd.com, michael.roth@amd.com,
	ashish.kalra@amd.com
Subject: Re: [PATCH 2/3] KVM: SVM: Add host support for Enhanced SMT Protection
Date: Thu, 17 Sep 2026 11:07:09 -0400	[thread overview]
Message-ID: <01f461a3-ddca-4f65-b42e-8835e6f25401@amd.com> (raw)
In-Reply-To: <20260916195613.GDaqr0XWezJuGjxtgI@fat_crate.local>



On 9/16/26 3:56 PM, Borislav Petkov wrote:
> On Mon, Sep 14, 2026 at 04:55:55PM +0000, Pratik R. Sampat wrote:
>> diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
>> index f70ee74b5f92..4cf477e95c58 100644
>> --- a/arch/x86/include/asm/cpufeatures.h
>> +++ b/arch/x86/include/asm/cpufeatures.h
>> @@ -529,6 +529,7 @@
>>  						      * and purposes if CLEAR_CPU_BUF_VM is set).
>>  						      */
>>  #define X86_FEATURE_X2AVIC_EXT		(21*32+20) /* AMD SVM x2AVIC support for 4k vCPUs */
>> +#define X86_FEATURE_AMD_ESMTP		(21*32+21) /* AMD Enhanced SMT Protection */
> 
> For the non-virt bits like this one and in scattered.c:
> 
> Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
> 

Thanks, Boris!

> And Sashiko has comments:
> 
> https://sashiko.dev/#/patchset/cover.1789399214.git.prsampat%40amd.com
> 
> Please address them: if valid, fix them, if not, explain why they don't need
> to be fixed.

Ack, will do.

Thanks!
--Pratik



  reply	other threads:[~2026-09-17 15:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-14 16:55 [PATCH 0/3] Introduce Enhanced SMT Protection for SEV-SNP Pratik R. Sampat
2026-09-14 16:55 ` [PATCH 1/3] KVM: SVM: Re-queue events that were never injected Pratik R. Sampat
2026-09-14 16:55 ` [PATCH 2/3] KVM: SVM: Add host support for Enhanced SMT Protection Pratik R. Sampat
2026-09-16 19:56   ` Borislav Petkov
2026-09-17 15:07     ` Pratik R. Sampat [this message]
2026-09-14 16:55 ` [PATCH 3/3] x86/sev: Add guest " Pratik R. Sampat

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=01f461a3-ddca-4f65-b42e-8835e6f25401@amd.com \
    --to=prsampat@amd.com \
    --cc=ashish.kalra@amd.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=kim.phillips@amd.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=michael.roth@amd.com \
    --cc=mingo@redhat.com \
    --cc=nikunj@amd.com \
    --cc=pbonzini@redhat.com \
    --cc=seanjc@google.com \
    --cc=tglx@kernel.org \
    --cc=thomas.lendacky@amd.com \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®