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In-Reply-To: <20160415120819.7144900c@kryten>
From: Michael Ellerman <mpe@ellerman.id.au>
Message-Id: <3qq12v5RT2z9t8p@ozlabs.org>
Date: Tue, 19 Apr 2016 20:09:43 +1000 (AEST)
Subject: Re: [Qemu-devel] [3/3] powerpc: Update TM user feature bits in
 scan_features()
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To: Unknown sender due to SPF <linuxppc-dev@lists.ozlabs.org>, Alexey Kardashevskiy <aik@ozlabs.ru>, Paul Mackerras <paulus@samba.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Michael Neuling <mikey@neuling.org>, David Gibson <david@gibson.dropbear.id.au>, Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org

On Fri, 2016-15-04 at 02:08:19 UTC, Unknown sender due to SPF wrote:
> We need to update the user TM feature bits (PPC_FEATURE2_HTM and
> PPC_FEATURE2_HTM) to mirror what we do with the kernel TM feature
> bit.
> 
> At the moment, if firmware reports TM is not available we turn off
> the kernel TM feature bit but leave the userspace ones on. Userspace
> thinks it can execute TM instructions and it dies trying.
> 
> This (together with a QEMU patch) fixes PR KVM, which doesn't currently
> support TM.
> 
> Signed-off-by: Anton Blanchard <anton@samba.org>
> Cc: stable@vger.kernel.org

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/4705e02498d6d5a7ab98dfee95

cheers