From: "Raj, Ashok" <ashok.raj@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Mihai Carabas <mihai.carabas@oracle.com>,
linux-kernel@vger.kernel.org, boris.ostrovsky@oracle.com,
konrad.wilk@oracle.com, patrick.colp@oracle.com,
kanth.ghatraju@oracle.com, Jon.Grimm@amd.com,
Thomas.Lendacky@amd.com, Ashok Raj <ashok.raj@intel.com>
Subject: Re: [PATCH 1/2] x86/microcode: Update late microcode in parallel
Date: Wed, 28 Aug 2019 12:45:26 -0700 [thread overview]
Message-ID: <20190828194526.GA4842@otc-nc-03> (raw)
In-Reply-To: <20190828191331.GN4920@zn.tnic>
On Wed, Aug 28, 2019 at 09:13:31PM +0200, Borislav Petkov wrote:
> On Tue, Aug 27, 2019 at 05:56:30PM -0700, Raj, Ashok wrote:
> > > "Cloud customers have expressed discontent as services disappear for
> > > a prolonged time. The restriction is that only one core (or only one
> > > thread of a core in the case of an SMT system) goes through the update
> > > while other cores (or respectively, SMT threads) are quiesced."
> >
> > the last line seems to imply that only one core can be updated at a time.
>
> Only one core *is* being updated at a time now, before the parallel
> loading patch. Look at the code. I'm talking about what the code does,
> not what the requirement is.
Crystal :-)
>
> Maybe it should not say "restriction" above but the sentence should
> start with: "Currently, only one core... "
That will help clear things up..
>
> --
> Regards/Gruss,
> Boris.
>
> Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2019-08-28 19:45 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 20:43 [PATCH] Parallel microcode update in Linux Mihai Carabas
2019-08-22 20:43 ` [PATCH] x86/microcode: Update microcode for all cores in parallel Mihai Carabas
2019-08-24 8:51 ` Borislav Petkov
2019-08-24 8:53 ` [PATCH 1/2] x86/microcode: Update late microcode " Borislav Petkov
2019-08-26 12:53 ` Boris Ostrovsky
2019-08-26 13:03 ` Borislav Petkov
2019-08-26 20:32 ` Raj, Ashok
2019-08-27 19:43 ` Boris Ostrovsky
2019-08-27 21:24 ` Boris Ostrovsky
2019-08-28 19:16 ` Borislav Petkov
2019-08-26 20:23 ` Raj, Ashok
2019-08-27 12:25 ` Borislav Petkov
2019-08-28 0:56 ` Raj, Ashok
2019-08-28 19:13 ` Borislav Petkov
2019-08-28 19:45 ` Raj, Ashok [this message]
2019-08-24 8:53 ` [PATCH 2/2] x86/microcode/intel: Issue the revision updated message only on the BSP Borislav Petkov
2019-08-26 13:34 ` Boris Ostrovsky
2019-08-26 13:45 ` Borislav Petkov
2019-10-01 17:43 ` [tip: x86/microcode] " tip-bot2 for Borislav Petkov
2019-10-01 17:43 ` [tip: x86/microcode] x86/microcode: Update late microcode in parallel tip-bot2 for Ashok Raj
2019-09-01 17:25 ` [PATCH] Parallel microcode update in Linux Pavel Machek
2019-09-02 7:27 ` Mihai Carabas
2019-09-02 7:39 ` Pavel Machek
2019-09-02 11:10 ` Mihai Carabas
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