From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com,
christophe.leroy@c-s.fr, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: Re: powerpc: fix 32-bit KVM-PR lockup and panic with MacOS guest
Date: Fri, 22 Feb 2019 09:47:49 +0000 [thread overview]
Message-ID: <445RN572ccz9sB8@ozlabs.org> (raw)
In-Reply-To: <20190208143319.11980-1-mark.cave-ayland@ilande.co.uk>
On Fri, 2019-02-08 at 14:33:19 UTC, Mark Cave-Ayland wrote:
> Commit 8792468da5e1 "powerpc: Add the ability to save FPU without giving it up"
> unexpectedly removed the MSR_FE0 and MSR_FE1 bits from the bitmask used to
> update the MSR of the previous thread in __giveup_fpu() causing a KVM-PR MacOS
> guest to lockup and panic the kernel.
>
> Reinstate these bits to the MSR bitmask to enable MacOS guests to run under
> 32-bit KVM-PR once again without issue.
>
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/fe1ef6bcdb4fca33434256a802a3ed6a
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com,
christophe.leroy@c-s.fr, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: Re: powerpc: fix 32-bit KVM-PR lockup and panic with MacOS guest
Date: Fri, 22 Feb 2019 20:47:49 +1100 (AEDT) [thread overview]
Message-ID: <445RN572ccz9sB8@ozlabs.org> (raw)
In-Reply-To: <20190208143319.11980-1-mark.cave-ayland@ilande.co.uk>
On Fri, 2019-02-08 at 14:33:19 UTC, Mark Cave-Ayland wrote:
> Commit 8792468da5e1 "powerpc: Add the ability to save FPU without giving it up"
> unexpectedly removed the MSR_FE0 and MSR_FE1 bits from the bitmask used to
> update the MSR of the previous thread in __giveup_fpu() causing a KVM-PR MacOS
> guest to lockup and panic the kernel.
>
> Reinstate these bits to the MSR bitmask to enable MacOS guests to run under
> 32-bit KVM-PR once again without issue.
>
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/fe1ef6bcdb4fca33434256a802a3ed6a
cheers
next prev parent reply other threads:[~2019-02-22 9:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 14:33 [PATCH] powerpc: fix 32-bit KVM-PR lockup and panic with MacOS guest Mark Cave-Ayland
2019-02-08 14:33 ` Mark Cave-Ayland
2019-02-08 14:45 ` Christophe Leroy
2019-02-08 14:45 ` Christophe Leroy
2019-02-08 14:51 ` Mark Cave-Ayland
2019-02-08 14:51 ` Mark Cave-Ayland
2019-02-11 0:30 ` Benjamin Herrenschmidt
2019-02-11 0:30 ` Benjamin Herrenschmidt
2019-02-11 21:39 ` Mark Cave-Ayland
2019-02-19 4:55 ` Michael Ellerman
2019-02-19 4:55 ` Michael Ellerman
2019-02-19 8:15 ` Mark Cave-Ayland
2019-02-19 4:20 ` Michael Ellerman
2019-02-19 4:20 ` Michael Ellerman
2019-02-19 7:55 ` Mark Cave-Ayland
2019-02-20 12:41 ` Michael Ellerman
2019-02-20 12:41 ` Michael Ellerman
2019-02-19 19:31 ` Cameron Kaiser
2019-02-22 9:47 ` Michael Ellerman [this message]
2019-02-22 9:47 ` Michael Ellerman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=445RN572ccz9sB8@ozlabs.org \
--to=patch-notifications@ellerman.id.au \
--cc=benh@kernel.crashing.org \
--cc=christophe.leroy@c-s.fr \
--cc=kvm-ppc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mark.cave-ayland@ilande.co.uk \
--cc=npiggin@gmail.com \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.