From: Jon Masters <jcm@redhat.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: GPZv4
Date: Wed, 18 Apr 2018 03:06:05 -0400 [thread overview]
Message-ID: <7c8ea99e-b054-da53-952a-bd4e7a28d247@redhat.com> (raw)
In-Reply-To: <a5617d61-652c-da5f-e657-504867693d11@redhat.com>
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On 04/17/2018 11:44 PM, Jon Masters wrote:
> On 04/17/2018 10:48 PM, speck for Konrad Rzeszutek Wilk wrote:
>> 2). SBB vs MDD vs SBBD.
>>
>> MDD = Memory Disambiguation Disable
>> SBB = Speculative Store Bypass
>> SBBD = Speculative Store Bypass Disable
>>
>> Thomas likes 'MDD', Jon likes 'SBB', but he is also fine with 'SBBD'.
>
> I'm refactoring your patches to recognize either "mdd" or "ssbd" (double
> s, not sbb :) ) on x86 and then other arches can target the latter one.
Attached the refactored set with all of my suggestions incorporated.
Lightly tested so far on a Coffeelake with updated microcode. Confirmed
that the settings are correct using rdmsr from userspace, etc. Will do
further testing (including some VMs) later today.
Do whatever you think is best Konrad and I'll followup to your next
official posting now that I'm on the list with any further feedback.
Jon.
--
Computer Architect | Sent from my Fedora powered laptop
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next prev parent reply other threads:[~2018-04-18 7:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 18:26 [MODERATED] GPZv4 Jon Masters
2018-04-17 19:31 ` [MODERATED] GPZv4 Borislav Petkov
2018-04-17 19:56 ` Jon Masters
2018-04-17 20:37 ` Borislav Petkov
2018-04-17 21:03 ` Jon Masters
2018-04-17 21:20 ` Borislav Petkov
2018-04-17 21:22 ` GPZv4 Thomas Gleixner
2018-04-17 21:25 ` [MODERATED] GPZv4 Jiri Kosina
2018-04-17 21:38 ` Jon Masters
2018-04-17 21:43 ` Jiri Kosina
2018-04-17 22:01 ` GPZv4 Thomas Gleixner
2018-04-17 22:02 ` [MODERATED] GPZv4 Jon Masters
2018-04-18 2:48 ` Konrad Rzeszutek Wilk
2018-04-18 3:44 ` Jon Masters
2018-04-18 4:09 ` Jon Masters
2018-04-18 4:18 ` Jon Masters
2018-04-18 4:56 ` Jon Masters
2018-04-18 7:06 ` Jon Masters [this message]
2018-04-18 8:54 ` GPZv4 Thomas Gleixner
2018-04-18 13:22 ` [MODERATED] GPZv4 Jon Masters
2018-04-18 14:04 ` GPZv4 Thomas Gleixner
2018-04-18 14:07 ` [MODERATED] GPZv4 Jon Masters
2018-04-18 14:52 ` Konrad Rzeszutek Wilk
2018-04-18 15:02 ` Jon Masters
2018-04-18 21:12 ` Konrad Rzeszutek Wilk
2018-04-18 21:20 ` Jon Masters
2018-04-17 21:36 ` Jon Masters
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