All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Luck, Tony" <tony.luck@intel.com>
To: Andy Lutomirski <luto@kernel.org>
Cc: "Joseph, Jithu" <jithu.joseph@intel.com>,
	"hdegoede@redhat.com" <hdegoede@redhat.com>,
	"markgross@kernel.org" <markgross@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "Borislav Petkov" <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"the arch/x86 maintainers" <x86@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	"Raj, Ashok" <ashok.raj@intel.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"platform-driver-x86@vger.kernel.org"
	<platform-driver-x86@vger.kernel.org>,
	"patches@lists.linux.dev" <patches@lists.linux.dev>,
	"Shankar, Ravi V" <ravi.v.shankar@intel.com>
Subject: RE: [RFC 00/10] Introduce In Field Scan driver
Date: Wed, 2 Mar 2022 21:41:55 +0000	[thread overview]
Message-ID: <f927a309de734c50a5ea8e62077e9e30@intel.com> (raw)
In-Reply-To: <bdc14f77-98e0-4af8-9bef-5dd3d41f22c2@www.fastmail.com>

> How does this work?  Is there an Intel IFS blob v1.17 that is expected
> to be *the* blob for a given CPU until an update happens?

This is the model. Although internally the blob is divided into chunks
that can be run separately, folks outside Intel have no visibility into
which chunk tests which circuits (even *inside* ... I don't know what
each chunk does :-) )

How often will updates occur? No idea. Since this is new, I'd expect
that there might be some improvements when there is feedback from
large CSPs running on many more systems than we have.

>  Or is the
> expectation that several different blobs might all useful on the same
> system and operators might want to run different blobs under different
> circumstances?

One of our early implementations included extra sysfs hooks to only
test specific chunks ... but we dropped that complexity as there's no
way for end users to decide which chunks to run.

So the posted series just iterates all chunks for a core.

-Tony


  reply	other threads:[~2022-03-02 21:41 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-01 19:54 [RFC 00/10] Introduce In Field Scan driver Jithu Joseph
2022-03-01 19:54 ` [RFC 01/10] x86/microcode/intel: expose collect_cpu_info_early() for IFS Jithu Joseph
2022-03-01 20:08   ` Greg KH
2022-03-02  0:56     ` Joseph, Jithu
2022-03-02 10:30   ` Borislav Petkov
2022-03-03  1:34     ` Joseph, Jithu
2022-03-01 19:54 ` [RFC 02/10] Documentation: In-Field Scan Jithu Joseph
2022-03-01 20:07   ` Greg KH
2022-03-02  0:58     ` Joseph, Jithu
2022-03-01 19:54 ` [RFC 03/10] platform/x86/intel/ifs: Add driver for " Jithu Joseph
2022-03-02 23:24   ` Williams, Dan J
2022-03-02 23:31     ` Raj, Ashok
2022-03-03  0:02     ` Luck, Tony
2022-03-03  2:04     ` Joseph, Jithu
2022-03-01 19:54 ` [RFC 04/10] platform/x86/intel/ifs: Load IFS Image Jithu Joseph
2022-03-03  2:58   ` Williams, Dan J
2022-03-01 19:54 ` [RFC 05/10] platform/x86/intel/ifs: Check IFS Image sanity Jithu Joseph
2022-03-01 19:54 ` [RFC 06/10] platform/x86/intel/ifs: Authenticate and copy to secured memory Jithu Joseph
2022-03-01 19:54 ` [RFC 07/10] platform/x86/intel/ifs: Create kthreads for online cpus for scan test Jithu Joseph
2022-03-03  4:17   ` Williams, Dan J
2022-03-03 19:59     ` Luck, Tony
2022-03-04 19:20     ` Joseph, Jithu
2022-03-07 16:52       ` Dan Williams
2022-03-07 17:46         ` Luck, Tony
2022-03-10 21:42           ` Kok, Auke
2022-03-01 19:54 ` [RFC 08/10] platform/x86/intel/ifs: Add IFS sysfs interface Jithu Joseph
2022-03-04  0:31   ` Williams, Dan J
2022-03-04 16:51     ` Luck, Tony
2022-03-04 20:42     ` Joseph, Jithu
2022-03-04 21:01       ` Luck, Tony
2022-03-21 21:15         ` Luck, Tony
2022-03-07 17:38       ` Dan Williams
2022-03-07 19:09         ` Joseph, Jithu
2022-03-07 19:15           ` Dan Williams
2022-03-07 19:55             ` Joseph, Jithu
2022-03-07 20:25               ` Dan Williams
2022-03-07 20:56                 ` Joseph, Jithu
2022-03-07 21:28                   ` Dan Williams
2022-03-07 21:30                   ` gregkh
2022-03-07 21:33                     ` Luck, Tony
2022-03-01 19:54 ` [RFC 09/10] platform/x86/intel/ifs: add ABI documentation for IFS Jithu Joseph
2022-03-04  0:57   ` Williams, Dan J
2022-03-01 19:54 ` [RFC 10/10] trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations Jithu Joseph
2022-03-01 20:17   ` Steven Rostedt
2022-03-02  1:02     ` Joseph, Jithu
2022-03-01 20:10 ` [RFC 00/10] Introduce In Field Scan driver Greg KH
2022-03-01 20:14   ` Greg KH
2022-03-14 23:10     ` Luck, Tony
2022-03-15  7:34       ` Greg KH
2022-03-15 14:59         ` Luck, Tony
2022-03-15 15:26           ` Greg KH
2022-03-15 16:04             ` Dan Williams
2022-03-15 16:09               ` Dan Williams
2022-03-15 16:10             ` Luck, Tony
2022-03-16  8:09               ` Greg KH
2022-03-02 15:33   ` Steven Rostedt
2022-03-02 16:20     ` Greg KH
2022-03-02 13:59 ` Andy Lutomirski
2022-03-02 20:29   ` Luck, Tony
2022-03-02 21:18     ` Andy Lutomirski
2022-03-02 21:41       ` Luck, Tony [this message]
2022-03-02 23:11 ` Williams, Dan J

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=f927a309de734c50a5ea8e62077e9e30@intel.com \
    --to=tony.luck@intel.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=ashok.raj@intel.com \
    --cc=bp@alien8.de \
    --cc=corbet@lwn.net \
    --cc=dave.hansen@linux.intel.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=hdegoede@redhat.com \
    --cc=hpa@zytor.com \
    --cc=jithu.joseph@intel.com \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=luto@kernel.org \
    --cc=markgross@kernel.org \
    --cc=mingo@redhat.com \
    --cc=patches@lists.linux.dev \
    --cc=platform-driver-x86@vger.kernel.org \
    --cc=ravi.v.shankar@intel.com \
    --cc=rostedt@goodmis.org \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.