From: Dave Hansen <dave.hansen@intel.com>
To: "Kalra, Ashish" <ashish.kalra@amd.com>,
tglx@kernel.org, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
seanjc@google.com, peterz@infradead.org, thomas.lendacky@amd.com,
herbert@gondor.apana.org.au, davem@davemloft.net,
ardb@kernel.org
Cc: pbonzini@redhat.com, aik@amd.com, Michael.Roth@amd.com,
KPrateek.Nayak@amd.com, Tycho.Andersen@amd.com,
Nathan.Fontenot@amd.com, jackyli@google.com, pgonda@google.com,
rientjes@google.com, jacobhxu@google.com, xin@zytor.com,
pawan.kumar.gupta@linux.intel.com, babu.moger@amd.com,
dyoung@redhat.com, nikunj@amd.com, john.allen@amd.com,
darwi@linutronix.de, linux-kernel@vger.kernel.org,
linux-crypto@vger.kernel.org, kvm@vger.kernel.org,
linux-coco@lists.linux.dev
Subject: Re: [PATCH 5/6] x86/sev: Use configfs to re-enable RMP optimizations.
Date: Wed, 18 Feb 2026 07:10:01 -0800 [thread overview]
Message-ID: <5b7bd345-8ee8-4614-883c-573344ed2824@intel.com> (raw)
In-Reply-To: <e72165ed-c65d-4d21-bff6-9981b46311cf@amd.com>
On 2/17/26 19:34, Kalra, Ashish wrote:
...
> As currently, i.e, as part of this patch series, there is no
> mechanism to re-issue RMPOPT automatically as part of SNP guest
> cleanup, therefore this support exists to doing it manually at
> runtime via configfs.
I think you need a mechanism that re-enable RMP optimizations
automatically for this feature to go upstream. It's just dead code
otherwise, and we don't merge dead code.
A configfs hack doesn't really count.
next prev parent reply other threads:[~2026-02-18 15:10 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-17 20:09 [PATCH 0/6] Add RMPOPT support Ashish Kalra
2026-02-17 20:09 ` [PATCH 1/6] x86/cpufeatures: Add X86_FEATURE_AMD_RMPOPT feature flag Ashish Kalra
2026-02-17 23:06 ` Ahmed S. Darwish
2026-02-17 20:10 ` [PATCH 2/6] x86/sev: add support for enabling RMPOPT Ashish Kalra
2026-02-17 22:06 ` Dave Hansen
2026-02-18 3:08 ` K Prateek Nayak
2026-02-18 14:59 ` Dave Hansen
2026-02-18 16:55 ` Kalra, Ashish
2026-02-18 17:01 ` Dave Hansen
2026-02-18 17:07 ` Kalra, Ashish
2026-02-18 17:17 ` Dave Hansen
2026-02-18 22:17 ` Kalra, Ashish
2026-02-18 22:56 ` Dave Hansen
2026-02-17 20:10 ` [PATCH 3/6] x86/sev: add support for RMPOPT instruction Ashish Kalra
2026-02-18 16:28 ` Uros Bizjak
2026-02-17 20:11 ` [PATCH 4/6] x86/sev: Add interface to re-enable RMP optimizations Ashish Kalra
2026-02-17 20:11 ` [PATCH 5/6] x86/sev: Use configfs " Ashish Kalra
2026-02-17 22:19 ` Dave Hansen
2026-02-18 3:34 ` Kalra, Ashish
2026-02-18 4:39 ` Kalra, Ashish
2026-02-18 15:10 ` Dave Hansen [this message]
2026-02-17 20:11 ` [PATCH 6/6] x86/sev: Add debugfs support for RMPOPT Ashish Kalra
2026-02-17 22:42 ` Ahmed S. Darwish
2026-02-17 22:11 ` [PATCH 0/6] Add RMPOPT support Dave Hansen
2026-02-18 4:12 ` Kalra, Ashish
2026-02-18 15:03 ` Dave Hansen
2026-02-18 17:03 ` Kalra, Ashish
2026-02-18 17:15 ` Dave Hansen
2026-02-18 21:09 ` Kalra, Ashish
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=5b7bd345-8ee8-4614-883c-573344ed2824@intel.com \
--to=dave.hansen@intel.com \
--cc=KPrateek.Nayak@amd.com \
--cc=Michael.Roth@amd.com \
--cc=Nathan.Fontenot@amd.com \
--cc=Tycho.Andersen@amd.com \
--cc=aik@amd.com \
--cc=ardb@kernel.org \
--cc=ashish.kalra@amd.com \
--cc=babu.moger@amd.com \
--cc=bp@alien8.de \
--cc=darwi@linutronix.de \
--cc=dave.hansen@linux.intel.com \
--cc=davem@davemloft.net \
--cc=dyoung@redhat.com \
--cc=herbert@gondor.apana.org.au \
--cc=hpa@zytor.com \
--cc=jackyli@google.com \
--cc=jacobhxu@google.com \
--cc=john.allen@amd.com \
--cc=kvm@vger.kernel.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=nikunj@amd.com \
--cc=pawan.kumar.gupta@linux.intel.com \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=pgonda@google.com \
--cc=rientjes@google.com \
--cc=seanjc@google.com \
--cc=tglx@kernel.org \
--cc=thomas.lendacky@amd.com \
--cc=x86@kernel.org \
--cc=xin@zytor.com \
/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