From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Scott Wood <scottwood@freescale.com>
Cc: Matthew McClintock <msm@freescale.com>,
kumar.gala@freescale.com, Timur Tabi <timur@freescale.com>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc/85xx: disable timebase synchronization under the hypervisor
Date: Wed, 15 Jun 2011 11:58:11 +1000 [thread overview]
Message-ID: <1308103091.2635.13.camel@pasglop> (raw)
In-Reply-To: <20110614182517.776d7e77@schlenkerla.am.freescale.net>
On Tue, 2011-06-14 at 18:25 -0500, Scott Wood wrote:
> On Tue, 14 Jun 2011 18:15:26 -0500
> Timur Tabi <timur@freescale.com> wrote:
>
> > Scott Wood wrote:
> > > FWIW, it's not supported under KVM either -- though we don't support an SMP
> > > guest under KVM yet, and KVM silently ignores it rather than logs errors as
> > > the FSL HV does.
> >
> > Does KVM set the root compatible to "fsl,P4080DS-hv"?
>
> No, Qemu/KVM like to pretend they're fully emulating concrete hardware,
> even though there's stuff missing.
>
> The only upstream e500 KVM platform is currently mpc8544ds.
>
> For now, there's no SMP KVM guest support. Maybe kexec can be fixed to not
> hard-reset the core by the time that changes. :-)
We might want to generically have a CPU feature bit indicating we are
running in guest vs. HV mode. I know Paulus is planning to introduce one
so you may want to sync with him.
Cheers,
Ben.
next prev parent reply other threads:[~2011-06-15 1:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-14 23:04 [PATCH] powerpc/85xx: disable timebase synchronization under the hypervisor Timur Tabi
2011-06-14 23:14 ` Scott Wood
2011-06-14 23:15 ` Timur Tabi
2011-06-14 23:25 ` Scott Wood
2011-06-15 1:58 ` Benjamin Herrenschmidt [this message]
2011-06-15 2:10 ` Tabi Timur-B04825
2011-06-15 2:33 ` Benjamin Herrenschmidt
2011-06-22 11:44 ` Kumar Gala
2011-06-22 14:55 ` Timur Tabi
2011-06-23 17:22 ` Scott Wood
2011-06-23 17:33 ` Timur Tabi
2011-06-23 17:48 ` Scott Wood
2011-06-24 2:36 ` Segher Boessenkool
2011-06-24 2:38 ` Tabi Timur-B04825
2011-06-24 3:50 ` Segher Boessenkool
2011-06-24 15:16 ` Scott Wood
2011-06-24 23:36 ` Benjamin Herrenschmidt
2011-06-27 13:35 ` Kumar Gala
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=1308103091.2635.13.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=kumar.gala@freescale.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=msm@freescale.com \
--cc=scottwood@freescale.com \
--cc=timur@freescale.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 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.