From: Michael Ellerman <mpe@ellerman•id.au>
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, linuxppc-dev@lists•ozlabs.org,
qemu-devel@nongnu•org
Subject: Re: [3/3] powerpc: Update TM user feature bits in scan_features()
Date: Tue, 19 Apr 2016 20:09:43 +1000 (AEST) [thread overview]
Message-ID: <3qq12v5RT2z9t8p@ozlabs.org> (raw)
In-Reply-To: <20160415120819.7144900c@kryten>
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
next prev parent reply other threads:[~2016-04-19 10:09 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 6:44 PR KVM and TM issues Anton Blanchard
2016-04-04 7:00 ` Alexey Kardashevskiy
2016-04-04 10:43 ` Anton Blanchard
2016-04-04 11:09 ` [PATCH] spapr: Don't set the TM ibm,pa-features bit in PR KVM mode Anton Blanchard
2016-04-04 11:13 ` [PATCH] spapr: Don't set the TM ibm, pa-features " Alexander Graf
2016-04-30 0:48 ` [PATCH v2] spapr: Don't set the TM ibm,pa-features " Anton Blanchard
2016-05-02 9:36 ` [Qemu-devel] [PATCH v2] spapr: Don't set the TM ibm, pa-features " haris iqbal
2016-05-27 4:52 ` David Gibson
2016-06-07 12:28 ` [PATCH 1/2] Add PowerPC AT_HWCAP2 definitions Anton Blanchard
2016-06-07 12:32 ` [PATCH 2/2] spapr: Better handling of ibm,pa-features TM bit Anton Blanchard
2016-06-08 2:26 ` David Gibson
2016-07-05 5:19 ` [PATCH 0/3] Rework spapr: Better handling of ibm, pa-features " Sam Bobroff
2016-07-05 5:19 ` [PATCH 1/3] spapr: Disable ibm, pa-features HTM bit Sam Bobroff
2016-07-05 5:51 ` David Gibson
2016-07-05 5:19 ` [PATCH 2/3] Add KVM_CAP_PPC_HTM to linux/kvm.h Sam Bobroff
2016-07-05 6:05 ` David Gibson
2016-07-06 4:41 ` Sam Bobroff
2016-07-06 5:09 ` David Gibson
2016-07-05 5:19 ` [PATCH 3/3] spapr: Set ibm, pa-features HTM from KVM_CAP_PPC_HTM Sam Bobroff
2016-07-05 6:52 ` David Gibson
2016-07-06 5:35 ` [PATCH v2 0/3] Rework spapr: Better handling of ibm, pa-features TM bit Sam Bobroff
2016-07-06 5:35 ` [PATCH v2 1/3] spapr: Disable ibm, pa-features HTM bit Sam Bobroff
2016-07-07 4:38 ` David Gibson
2016-07-06 5:35 ` [PATCH v2 2/3] Add KVM_CAP_PPC_HTM to linux/kvm.h Sam Bobroff
2016-07-07 4:38 ` David Gibson
2016-07-06 5:35 ` [PATCH v2 3/3] spapr: Set ibm, pa-features HTM from KVM_CAP_PPC_HTM Sam Bobroff
2016-07-07 4:39 ` David Gibson
2016-06-08 2:19 ` [PATCH 1/2] Add PowerPC AT_HWCAP2 definitions David Gibson
2016-04-05 2:12 ` [PATCH] spapr: Don't set the TM ibm,pa-features bit in PR KVM mode Paul Mackerras
2016-04-05 4:09 ` David Gibson
2016-04-05 7:33 ` Alexey Kardashevskiy
2016-04-04 11:11 ` [PATCH] powerpc: Clear user CPU feature bits if TM is disabled at runtime Anton Blanchard
2016-04-05 0:52 ` David Gibson
2016-04-05 9:35 ` Michael Ellerman
2016-04-05 9:56 ` Benjamin Herrenschmidt
2016-04-05 22:40 ` Michael Ellerman
2016-04-15 2:06 ` [PATCH 1/3] powerpc: scan_features() updates incorrect bits Anton Blanchard
2016-04-15 14:27 ` [1/3] " Michael Ellerman
2016-04-18 4:40 ` Michael Ellerman
2016-04-18 4:16 ` Michael Ellerman
2016-04-18 10:36 ` [PATCH v2 1/3] powerpc: scan_features() updates incorrect bits for REAL_LE Michael Ellerman
2016-04-19 10:09 ` [v2, " Michael Ellerman
2016-04-15 2:07 ` [PATCH 2/3] powerpc: Update cpu_user_features2 in scan_features() Anton Blanchard
2016-04-19 10:09 ` [2/3] " Michael Ellerman
2016-04-15 2:08 ` [PATCH 3/3] powerpc: Update TM user feature bits " Anton Blanchard
2016-04-19 10:09 ` Michael Ellerman [this message]
2016-04-04 11:09 ` PR KVM and TM issues Michael Neuling
2016-04-05 7:29 ` Alexey Kardashevskiy
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