From: marc.zyngier@arm•com (Marc Zyngier)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC v2 0/5] arm64: kvm: reset hyp context for kexec
Date: Fri, 27 Mar 2015 15:37:04 +0000 [thread overview]
Message-ID: <55157920.3050003@arm.com> (raw)
In-Reply-To: <20150327153131.GK12400@redacted.bos.redhat.com>
On 27/03/15 15:31, Kyle McMartin wrote:
> On Thu, Mar 26, 2015 at 05:25:21PM +0900, AKASHI Takahiro wrote:
>> 1) Call kvm_cpu_reset() on non-boot cpus in reboot notifier
>> We don't have to do so in kexec-specific case. But the current code runs
>> the function on each cpu for safety since we use a general reboot hook.
>> 2) Flush D$ in kvm_cpu_reset()
>> Currently doesn't do so because all the cpus are just going to shut down,
>> and we actually flush D$ on boot cpu in Geoff's cpu_reset().
>> 3) Compatibility with arm implementation
>> Frediano[2] is no longer working on this issue on arm as he left his
>> company. But my approach here is based on a generic interface and can be
>> applied to arm in a similar way.
>>
>
> i'm hitting this when rebooting with your patchset applied...
>
> Rebooting.
> [ 236.260863] Kernel panic - not syncing: HYP panic:
> [ 236.260863] PS:600003c9 PC:000003ffffff0830 ESR:0000000096000006
It would be interesting if you could find out what you have at offset
0x830 of hyp-init.o (the stack trace is for EL1, and is not going to
help much).
Thanks,
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2015-03-27 15:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-26 8:25 [RFC v2 0/5] arm64: kvm: reset hyp context for kexec AKASHI Takahiro
2015-03-26 8:25 ` [RFC v2 1/5] arm64: kvm: add a cpu tear-down function AKASHI Takahiro
2015-03-26 8:25 ` [RFC v2 2/5] arm64: kvm: allow EL2 context to be reset on shutdown AKASHI Takahiro
2015-03-26 8:25 ` [RFC v2 3/5] arm64: kvm: add cpu reset hook for cpu hotplug AKASHI Takahiro
2015-03-26 8:25 ` [RFC v2 4/5] arm64: kvm: add cpu reset at module exit AKASHI Takahiro
2015-03-26 8:25 ` [RFC v2 5/5] arm: kvm: add stub implementation for kvm_cpu_reset() AKASHI Takahiro
2015-03-27 15:31 ` [RFC v2 0/5] arm64: kvm: reset hyp context for kexec Kyle McMartin
2015-03-27 15:37 ` Marc Zyngier [this message]
2015-03-27 17:40 ` Kyle McMartin
2015-03-27 17:50 ` Marc Zyngier
2015-03-30 1:39 ` AKASHI Takahiro
2015-03-30 7:16 ` Marc Zyngier
2015-03-30 8:54 ` AKASHI Takahiro
2015-03-31 6:04 ` AKASHI Takahiro
2015-03-31 7:31 ` Marc Zyngier
2015-04-01 5:06 ` AKASHI Takahiro
2015-04-01 9:05 ` Marc Zyngier
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=55157920.3050003@arm.com \
--to=marc.zyngier@arm$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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