From: Greg KH <greg@kroah.com>
To: Sasha Levin <sashal@kernel.org>
Cc: Will Deacon <will@kernel.org>,
Vladimir Murzin <vladimir.murzin@arm.com>,
linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org,
catalin.marinas@arm.com, maz@kernel.org, dbrazdil@google.com
Subject: Re: [PATCH v2][for-stable-v5.11] arm64: Unconditionally set virtual cpu id registers
Date: Fri, 19 Mar 2021 10:45:21 +0100 [thread overview]
Message-ID: <YFRysSLvd8Ekdl5f@kroah.com> (raw)
In-Reply-To: <YFNOHKX6V4dkwWIp@sashalap>
On Thu, Mar 18, 2021 at 08:57:00AM -0400, Sasha Levin wrote:
> On Wed, Mar 17, 2021 at 01:26:15PM +0000, Will Deacon wrote:
> > On Tue, Mar 16, 2021 at 01:43:19PM +0000, Vladimir Murzin wrote:
> > > Commit 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
> > > reorganized el2 setup in such way that virtual cpu id registers set
> > > only in nVHE, yet they used (and need) to be set irrespective VHE
> > > support.
> > >
> > > Fixes: 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
> > > Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
> > > ---
> > > Changelog
> > >
> > > v1 -> v2
> > > - Drop the reference to 32bit guests from commit message (per Marc)
> > >
> > > There is no upstream fix since issue went away due to code there has
> > > been reworked in 5.12: nVHE comes first, so virtual cpu id register
> > > are always set.
> > >
> > > Maintainers, please, Ack.
> > >
> > > arch/arm64/include/asm/el2_setup.h | 4 ++--
> > > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > It's a bit weird to have a patch in stable that isn't upstream, but I don't
> > see a better option here.
>
> Yes, I'd agree here - the commits that would need to be backported look
> way too invasive.
>
> I've queued it up, thanks.
I don't see it, so I've added it as well...
thanks,
greg k-h
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <greg@kroah.com>
To: Sasha Levin <sashal@kernel.org>
Cc: Will Deacon <will@kernel.org>,
Vladimir Murzin <vladimir.murzin@arm.com>,
linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org,
catalin.marinas@arm.com, maz@kernel.org, dbrazdil@google.com
Subject: Re: [PATCH v2][for-stable-v5.11] arm64: Unconditionally set virtual cpu id registers
Date: Fri, 19 Mar 2021 10:45:21 +0100 [thread overview]
Message-ID: <YFRysSLvd8Ekdl5f@kroah.com> (raw)
In-Reply-To: <YFNOHKX6V4dkwWIp@sashalap>
On Thu, Mar 18, 2021 at 08:57:00AM -0400, Sasha Levin wrote:
> On Wed, Mar 17, 2021 at 01:26:15PM +0000, Will Deacon wrote:
> > On Tue, Mar 16, 2021 at 01:43:19PM +0000, Vladimir Murzin wrote:
> > > Commit 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
> > > reorganized el2 setup in such way that virtual cpu id registers set
> > > only in nVHE, yet they used (and need) to be set irrespective VHE
> > > support.
> > >
> > > Fixes: 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
> > > Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
> > > ---
> > > Changelog
> > >
> > > v1 -> v2
> > > - Drop the reference to 32bit guests from commit message (per Marc)
> > >
> > > There is no upstream fix since issue went away due to code there has
> > > been reworked in 5.12: nVHE comes first, so virtual cpu id register
> > > are always set.
> > >
> > > Maintainers, please, Ack.
> > >
> > > arch/arm64/include/asm/el2_setup.h | 4 ++--
> > > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > It's a bit weird to have a patch in stable that isn't upstream, but I don't
> > see a better option here.
>
> Yes, I'd agree here - the commits that would need to be backported look
> way too invasive.
>
> I've queued it up, thanks.
I don't see it, so I've added it as well...
thanks,
greg k-h
next prev parent reply other threads:[~2021-03-19 9:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-16 13:43 [PATCH v2][for-stable-v5.11] arm64: Unconditionally set virtual cpu id registers Vladimir Murzin
2021-03-16 13:43 ` Vladimir Murzin
2021-03-16 13:52 ` Marc Zyngier
2021-03-16 13:52 ` Marc Zyngier
2021-03-17 13:26 ` Will Deacon
2021-03-17 13:26 ` Will Deacon
2021-03-18 12:57 ` Sasha Levin
2021-03-18 12:57 ` Sasha Levin
2021-03-19 9:45 ` Greg KH [this message]
2021-03-19 9:45 ` Greg KH
2021-03-19 9:45 ` Patch "arm64: Unconditionally set virtual cpu id registers" has been added to the 5.11-stable tree gregkh
2021-03-19 9:52 ` Patch "arm64: Unconditionally set virtual cpu id registers" has been added to the 4.14-stable tree gregkh
2021-03-19 9:58 ` Greg KH
2021-03-19 9:58 ` Greg KH
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=YFRysSLvd8Ekdl5f@kroah.com \
--to=greg@kroah.com \
--cc=catalin.marinas@arm.com \
--cc=dbrazdil@google.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=maz@kernel.org \
--cc=sashal@kernel.org \
--cc=stable@vger.kernel.org \
--cc=vladimir.murzin@arm.com \
--cc=will@kernel.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.