linux-kernel - Re: [stable:PATCH v5.10.105] arm64: kvm: Fix copy-and-paste error in bhb templates for v5.10 stable

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Date:   Thu, 17 Mar 2022 11:05:08 +0100
From:   Pavel Machek <pavel@...x.de>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     James Morse <james.morse@....com>, stable@...r.kernel.org,
        pavel@...x.de, catalin.marinas@....com,
        linux-kernel@...r.kernel.org
Subject: Re: [stable:PATCH v5.10.105] arm64: kvm: Fix copy-and-paste error in
 bhb templates for v5.10 stable

Hi!

> > KVM's infrastructure for spectre mitigations in the vectors in v5.10 and
> > earlier is different, it uses templates which are used to build a set of
> > vectors at runtime.
> > 
> > There are two copy-and-paste errors in the templates: __spectre_bhb_loop_k24
> > should loop 24 times and __spectre_bhb_loop_k32 32.
> > 
> > Fix these.

> > @@ -68,7 +68,7 @@ SYM_DATA_START(__spectre_bhb_loop_k24)
> >  	esb
> >  	sub	sp, sp, #(8 * 2)
> >  	stp	x0, x1, [sp, #(8 * 0)]
> > -	mov	x0, #8
> > +	mov	x0, #24
> >  2:	b	. + 4
> >  	subs	x0, x0, #1
> >  	b.ne	2b
> 
> Thanks, now queued up!

Thank you.

Reviewed-by: Pavel Machek <pavel@...x.de>
								Pavel
-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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