From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
oliver.upton@linux.dev
Subject: Re: [PATCH] Revert "KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled"
Date: Fri, 22 Jul 2022 19:18:22 +0200 [thread overview]
Message-ID: <0f8dde12-576b-1579-38c9-496306aeeb81@redhat.com> (raw)
In-Reply-To: <YtrB8JEuc1Il1EOO@google.com>
On 7/22/22 17:27, Sean Christopherson wrote:
>> So revert it, at the potential cost
>> of breaking L1s with a 6 year old kernel.
> I would further qualify this with "breaking L1s with an_unpatched_ 6 year old
> kernel". That fix was tagged for stable and made it way to at least the 4.9 and
> 4.4 LTS releases.
>
Well, there _are_ people that use very old kernels and keep them
up-to-date with fixes for only critical CVEs (for example by, ehm,
paying my employer to do so). But still it's way way unlikely for them
to be used as L1 in a nested setup, whether on their own hardware or in
the cloud.
I pushed everything to kvm/queue, but depending on what you post it may
be deferred to 5.21.
Paolo
next prev parent reply other threads:[~2022-07-22 17:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 10:43 Paolo Bonzini
2022-07-22 15:27 ` Sean Christopherson
2022-07-22 17:18 ` Paolo Bonzini [this message]
2022-07-22 17:23 ` Sean Christopherson
2022-07-22 17:34 ` Paolo Bonzini
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=0f8dde12-576b-1579-38c9-496306aeeb81@redhat.com \
--to=pbonzini@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=oliver.upton@linux.dev \
--cc=seanjc@google.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
all inboxes | Powered by JetHome®