LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Eric Hankland <ehankland@google.com>
To: Wei Wang <wei.w.wang@intel.com>
Cc: Cfir Cohen <cfir@google.com>, Paolo Bonzini <pbonzini@redhat.com>,
	rkrcmar@redhat.com, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH v1] KVM: x86: PMU Whitelist
Date: Wed, 5 Jun 2019 14:35:37 -0700	[thread overview]
Message-ID: <CAOyeoRXFAQNNWRiHNtK3n17V0owBVNyKdv75xjt08Q_pC+XOXg@mail.gmail.com> (raw)
In-Reply-To: <CAEU=KTHsVmrAHXUKdHu_OwcrZoy-hgV7pk4UymtchGE5bGdUGA@mail.gmail.com>

>> Right - I'm aware there are other ways of detecting this - it's still
>> a class of events that some people don't want to surface. I'll ask if
>> there are any better examples.

I asked and it sounds like we are treating all events as potentially
insecure until they've been reviewed. If Intel were to publish
official (reasonably substantiated) guidance stating that the PMU is
secure, then I think we'd be happy without such a safeguard in place,
but short of that I think we want to err on the side of caution.

Eric

  parent reply	other threads:[~2019-06-05 21:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-22 22:23 Eric Hankland
2019-05-28  2:01 ` Wei Wang
2019-05-28 18:14   ` Eric Hankland
2019-05-29  7:54     ` Wei Wang
2019-05-29 17:11       ` Eric Hankland
2019-05-31  1:02         ` Wei Wang
2019-05-31 19:59           ` Eric Hankland
2019-06-01 10:55             ` Wei Wang
2019-06-03 17:30               ` Eric Hankland
2019-06-04  4:42                 ` Wei Wang
2019-06-04 15:56                   ` Eric Hankland
     [not found]                     ` <CAEU=KTHsVmrAHXUKdHu_OwcrZoy-hgV7pk4UymtchGE5bGdUGA@mail.gmail.com>
2019-06-05 21:35                       ` Eric Hankland [this message]
2019-06-06  7:36                         ` Wei Wang
2019-06-13 17:43                           ` Eric Hankland
2019-06-14  9:14                             ` Wei Wang
2019-06-14  9:26 ` Wei Wang
2019-06-25  0:32   ` Eric Hankland
2019-06-25  9:12     ` Wei Wang
2019-07-02 17:46       ` Eric Hankland
2019-07-03  9:06         ` Wei Wang
2019-06-20 18:05 ` Andi Kleen
2019-06-24 23:56   ` Eric Hankland

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=CAOyeoRXFAQNNWRiHNtK3n17V0owBVNyKdv75xjt08Q_pC+XOXg@mail.gmail.com \
    --to=ehankland@google.com \
    --cc=cfir@google.com \
    --cc=eranian@google.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=pbonzini@redhat.com \
    --cc=rkrcmar@redhat.com \
    --cc=wei.w.wang@intel.com \
    --subject='Re: [PATCH v1] KVM: x86: PMU Whitelist' \
    /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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).