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Date:   Thu, 26 Jul 2018 16:18:42 +0200
From:   Joerg Roedel <jroedel@suse.de>
To:     Jiri Kosina <jikos@kernel.org>
Cc:     Alan Cox <alan@linux.intel.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Rich Felker <dalias@libc.org>, x86@kernel.org,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        David Woodhouse <dwmw@amazon.co.uk>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: cpu_no_speculation omissions?
Message-ID: <20180726141842.56ppkwy3d3hwr56p@suse.de>
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On Thu, Jul 26, 2018 at 03:29:53PM +0200, Jiri Kosina wrote:
> On Mon, 16 Jul 2018, Alan Cox wrote:
> > The pre Silvermont atom cores are in order. When I did the original
> > list I didn't bother with all the 32bit cores as we didn't have any
> > 32bit mitigations then.
> 
> Now that 32bit PTI is in tip, I believe refresh of that list would be 
> justified. CCing Joerg.

Agreed, PTI for x86-32 is in -tip now and will likely make it into
v4.19. In-order cores (which should not be not affected by Meltdown)
should be on the list, otherwise they will get a huge performance hit.


Regards,

	Joerg