From: Marc Zyngier <maz@kernel.org>
To: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] ARM: virt: Relax arch timer version check during early boot
Date: Mon, 20 Jan 2020 14:01:52 +0000 [thread overview]
Message-ID: <c573c3f5b86ece28a10c2466e985b256@kernel.org> (raw)
In-Reply-To: <1579527498-31081-1-git-send-email-vladimir.murzin@arm.com>
On 2020-01-20 13:38, Vladimir Murzin wrote:
> Updates to the Generic Timer architecture allow ID_PFR1.GenTimer to
> have values other than 0 or 1 while still preserving backward
> compatibility. At the moment, Linux is quite strict in the way it
> handles this field at early boot and will not configure arch timer if
> it doesn't find the value 1.
>
> Since here use ubfx for arch timer version extraction (hyb-stub build
> with -march=armv7-a, so it is safe)
>
> To help backports (even though the code was correct at the time of
> writing)
> Fixes: 8ec58be9f3ff ("ARM: virt: arch_timers: enable access to physical
> timers")
> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Feel free to put it into Russell's patch system.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-01-20 14:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 13:38 [PATCH v2] ARM: virt: Relax arch timer version check during early boot Vladimir Murzin
2020-01-20 14:01 ` Marc Zyngier [this message]
2020-01-20 14:09 ` Vladimir Murzin
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=c573c3f5b86ece28a10c2466e985b256@kernel.org \
--to=maz@kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=vladimir.murzin@arm.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox