From: Sasha Levin <sashal@kernel.org>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: stable@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH for 5.10] powerpc/32s: Fix RTAS machine check with VMAP stack
Date: Wed, 13 Jan 2021 11:50:45 -0500 [thread overview]
Message-ID: <20210113165045.GR4035784@sasha-vm> (raw)
In-Reply-To: <790e46767a5f10ae991969b064682c8c82f96bc3.1610519852.git.christophe.leroy@csgroup.eu>
On Wed, Jan 13, 2021 at 06:40:20AM +0000, Christophe Leroy wrote:
>This is backport for 5.10
>
>(cherry picked from commit 98bf2d3f4970179c702ef64db658e0553bc6ef3a)
>
>When we have VMAP stack, exception prolog 1 sets r1, not r11.
>
>When it is not an RTAS machine check, don't trash r1 because it is
>needed by prolog 1.
>
>Fixes: da7bb43ab9da ("powerpc/32: Fix vmap stack - Properly set r1 before activating MMU")
>Cc: stable@vger.kernel.org # v5.10+
>Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
>[mpe: Squash in fixup for RTAS machine check from Christophe]
>Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
>Link: https://lore.kernel.org/r/bc77d61d1c18940e456a2dee464f1e2eda65a3f0.1608621048.git.christophe.leroy@csgroup.eu
Queued up, thanks!
--
Thanks,
Sasha
prev parent reply other threads:[~2021-01-13 16:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 6:40 [PATCH for 5.10] powerpc/32s: Fix RTAS machine check with VMAP stack Christophe Leroy
2021-01-13 16:50 ` Sasha Levin [this message]
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