linux-kernel - Re: [PATCH v6 11/13] kvm, x86: update spectre-v1 mitigation

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Message-ID: <alpine.DEB.2.21.1801311641420.9911@nanos.tec.linutronix.de>
Date:   Wed, 31 Jan 2018 16:42:05 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Paolo Bonzini <pbonzini@...hat.com>
cc:     Dan Williams <dan.j.williams@...el.com>,
        Ingo Molnar <mingo@...nel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Andrew Honig <ahonig@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Alan Cox <alan@...ux.intel.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jim Mattson <jmattson@...gle.com>
Subject: Re: [PATCH v6 11/13] kvm, x86: update spectre-v1 mitigation

On Wed, 31 Jan 2018, Paolo Bonzini wrote:

> On 31/01/2018 03:07, Thomas Gleixner wrote:
> >> Hi Thomas,
> >>
> >> I notice this one missing from -tip, I suspect because of the
> >> collision with the raw 'lfence' that is in current mainline? No
> >> worries, I'll send a rebased fixup to Paolo directly once
> >> array_idx_nospec() goes upstream.
> 
> Fine by me.  Also, now that x86/pti has been rebased, a version that
> replaces the lfence with array_idx_nospec() would apply to both tip and
> 4.14.

I'm happy to take it.

Thanks,

	tglx