From: mark gross <mgross@linux.intel.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v2 1/2] v2: more sampling fun 1
Date: Wed, 26 Feb 2020 14:13:55 -0800 [thread overview]
Message-ID: <20200226221355.GC116192@mtg-dev.jf.intel.com> (raw)
In-Reply-To: <87h7zdi58e.fsf@nanos.tec.linutronix.de>
On Wed, Feb 26, 2020 at 07:16:33PM +0100, speck for Thomas Gleixner wrote:
> speck for Borislav Petkov <speck@linutronix.de> writes:
> > On Wed, Feb 26, 2020 at 09:11:03AM -0800, speck for mark gross wrote:
> >> Yeah, Andi pointed it out to me on an internal review. I don't know what tool
> >> is using it.
> >
> > Then how do you write a patch and state in the commit message that
> > something is an ABI without knowing what the situation actually is?!
> >
> >> FWIW doing it this way made a cleaner patch without touching a dozen other
> >> files using that structure. I'd rather stay with the way it is but, if you
> >> feel strongly I can do a version of what I had before only adding the new
> >> members to the end. Please let me know.
> >
> > Looking at that table again - cpu_vuln_whitelist - that is a
> > *whitelist*. See how all the bits start with "NO_"? Except maybe
> > MSBDS_ONLY.
>
> Well, that was a decision to not have NO_MSDALL and NO_MDSSOMETHING as
> it made some of logic in the code simpler.
>
> > What you're doing is, you're misusing it to match models and steppings
> > to set SRBDS* bug flags.
> >
> > What you should actually be doing is setting those bug flags in
> > early_init_intel() where you can go wild with the steppings checking and
> > then you won't need to touch x86_cpu_id at all.
>
> Either that or add a new cpu_vuln_shitlist beside the whitelist and
> stick the new stuff into that. It kinda makes sense to keep all this
> vulnerability nonsense in one place.
I'm ok with either way. is there a consensus for making annother
cpu_vuln_list?
--mark
next prev parent reply other threads:[~2020-02-26 22:13 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-24 21:45 [MODERATED] [PATCH v2 0/2] v2: more sampling fun 0 mark gross
2020-01-16 22:16 ` [MODERATED] [PATCH v2 2/2] v2: more sampling fun 2 mark gross
2020-02-06 22:11 ` [MODERATED] [PATCH v2 1/2] v2: more sampling fun 1 mark gross
2020-02-25 16:55 ` [MODERATED] Re: [PATCH v2 0/2] v2: more sampling fun 0 Josh Poimboeuf
2020-02-25 17:43 ` mark gross
2020-02-25 20:47 ` Thomas Gleixner
2020-02-25 21:51 ` [MODERATED] " mark gross
[not found] ` <5e5595e6.1c69fb81.69e80.2880SMTPIN_ADDED_BROKEN@mx.google.com>
2020-02-26 7:27 ` [MODERATED] Re: [PATCH v2 2/2] v2: more sampling fun 2 Greg KH
2020-02-26 18:02 ` mark gross
2020-02-26 11:07 ` [MODERATED] Re: [PATCH v2 1/2] v2: more sampling fun 1 Borislav Petkov
2020-02-26 17:11 ` mark gross
2020-02-26 17:59 ` Borislav Petkov
2020-02-26 18:16 ` Thomas Gleixner
2020-02-26 22:13 ` mark gross [this message]
2020-02-26 23:53 ` Thomas Gleixner
2020-02-27 16:43 ` [MODERATED] " mark gross
2020-02-26 22:11 ` mark gross
2020-02-26 22:43 ` Borislav Petkov
2020-02-26 23:34 ` mark gross
2020-02-26 18:55 ` Thomas Gleixner
2020-02-26 22:23 ` [MODERATED] " mark gross
2020-02-26 21:13 ` Andi Kleen
2020-02-26 22:01 ` Thomas Gleixner
2020-02-27 7:08 ` [MODERATED] " Greg KH
2020-02-26 11:46 ` [MODERATED] Re: [PATCH v2 2/2] v2: more sampling fun 2 Borislav Petkov
2020-02-26 17:35 ` mark gross
2020-02-26 18:13 ` Borislav Petkov
2020-02-26 22:37 ` mark gross
2020-02-26 22:50 ` Borislav Petkov
2020-02-26 23:42 ` mark gross
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=20200226221355.GC116192@mtg-dev.jf.intel.com \
--to=mgross@linux.intel.com \
--cc=speck@linutronix.de \
/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;
as well as URLs for NNTP newsgroup(s).