From: Dave Hansen <dave.hansen@intel.com>
To: Ashish Kalra <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, ackerleytng@google.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 v8 6/7] KVM: SEV: Perform RMP optimizations on SNP guest shutdown
Date: Thu, 18 Jun 2026 14:42:02 -0700 [thread overview]
Message-ID: <fdf0919f-0576-45e3-8600-72ac40c6f8af@intel.com> (raw)
In-Reply-To: <25c3693a59c8f00796e84f1ffa668df6e3b734b5.1781419998.git.ashish.kalra@amd.com>
On 6/15/26 12:50, Ashish Kalra wrote:
> From: Ashish Kalra <ashish.kalra@amd.com>
>
> Pages are converted from shared to private as SNP guests are launched.
> This destroys exisiting RMPOPT optimizations in the regions where
> pages are converted.
>
> Conversely, guest pages are converted back to shared during SNP guest
> termination and their region may become eligible for RMPOPT
> optimization.
Oh, actually that would be good text for the *previous* patch too. You
might want to move some of it there.
next prev parent reply other threads:[~2026-06-18 21:42 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1781419998.git.ashish.kalra@amd.com>
2026-06-15 19:48 ` [PATCH v8 1/7] x86/cpufeatures: Add X86_FEATURE_RMPOPT feature flag Ashish Kalra
2026-06-15 19:48 ` [PATCH v8 2/7] x86/sev: Initialize RMPOPT configuration MSRs Ashish Kalra
2026-06-16 6:03 ` K Prateek Nayak
2026-06-18 18:23 ` Kalra, Ashish
2026-06-18 21:08 ` Tom Lendacky
2026-06-15 19:49 ` [PATCH v8 3/7] crypto/ccp: Disable CPU hotplug while SNP is active Ashish Kalra
2026-06-17 4:33 ` K Prateek Nayak
2026-06-17 22:23 ` Kalra, Ashish
2026-06-18 21:49 ` Tom Lendacky
2026-06-18 21:35 ` Dave Hansen
2026-06-15 19:49 ` [PATCH v8 4/7] x86/sev: Add support to perform RMP optimizations asynchronously Ashish Kalra
2026-06-16 7:27 ` K Prateek Nayak
2026-06-16 19:56 ` Kalra, Ashish
2026-06-17 4:20 ` K Prateek Nayak
2026-06-17 21:57 ` Kalra, Ashish
2026-06-15 19:49 ` [PATCH v8 5/7] x86/sev: Add interface to re-enable RMP optimizations Ashish Kalra
2026-06-18 21:41 ` Dave Hansen
2026-06-15 19:50 ` [PATCH v8 6/7] KVM: SEV: Perform RMP optimizations on SNP guest shutdown Ashish Kalra
2026-06-18 21:42 ` Dave Hansen [this message]
2026-06-15 19:50 ` [PATCH v8 7/7] x86/sev: Add debugfs support for RMPOPT Ashish Kalra
2026-06-18 18:08 ` Borislav Petkov
2026-06-18 19:57 ` Kalra, Ashish
2026-06-18 20:10 ` Borislav Petkov
2026-06-18 21:42 ` Dave Hansen
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=fdf0919f-0576-45e3-8600-72ac40c6f8af@intel.com \
--to=dave.hansen@intel.com \
--cc=Ashish.Kalra@amd.com \
--cc=KPrateek.Nayak@amd.com \
--cc=Michael.Roth@amd.com \
--cc=Nathan.Fontenot@amd.com \
--cc=Tycho.Andersen@amd.com \
--cc=ackerleytng@google.com \
--cc=aik@amd.com \
--cc=ardb@kernel.org \
--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