From: "J. Mayer" <l_indien@magic.fr>
To: qemu-devel@nongnu.org
Cc: TristanGingold <gingold@adacore.com>
Subject: Re: [Qemu-devel] Removal of some target CPU macros
Date: Thu, 08 Nov 2007 21:09:22 +0100 [thread overview]
Message-ID: <1194552562.21588.36.camel@rapid> (raw)
In-Reply-To: <6FED2620-5A45-4C4F-8AA5-C509BC2323D7@adacore.com>
On Thu, 2007-11-08 at 14:09 +0100, Tristan Gingold wrote:
> Two side comments:
Hi,
> > Note that most (all ?) embedded Freescale PowerPC microcontrollers
> > implement those extensions and that some ones are greatly interrested
> > with having an usable emulation avaible for those CPUs.
>
> Has anyone started to implement spe ?
Large parts of the SPE extensions are implemented, most fixed-point
operations (but the multiply and add family) and I think almost all
floating-point operations (the flags are not properly emulated, for
now). But there's a lack of a CPU model that would really use it. It
could be made available very easily for a test CPU for user-mode only,
as it is now. The MMU model used on Freescale cores is not implemented
yet, then the full-system emulation would not be possible for now.
> > - someone provide an open-source hypervisor, compatible with the ones
> > used on real machines, that would allow at least Linux to be able
> > to run
> > on a CPU with hypervisor mode available.
>
> Does xen/ppc satisfy your requirement ?
> Maybe Hollis will comment.
I don't know really. I guess it may do for the more urgent need which is
to have a fully "transparent" hypervisor that would enable the OS to
access all resources. I won't bet it could be a replacement for IBM
hypervisor software as the full specifications of this software have
still not be fully released (the PPAR document, which describes the
whole hypervisor features is still a draft).
But it's a good idea, I may take a look of what it could provide.
--
J. Mayer <l_indien@magic.fr>
Never organized
next prev parent reply other threads:[~2007-11-08 20:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-07 18:32 [Qemu-devel] Removal of some target CPU macros Fabrice Bellard
2007-11-07 19:16 ` Jocelyn Mayer
2007-11-07 21:55 ` Fabrice Bellard
2007-11-07 22:28 ` J. Mayer
2007-11-07 22:55 ` Fabrice Bellard
2007-11-07 23:12 ` Bernhard Fischer
2007-11-07 23:36 ` Paul Brook
[not found] ` <200711072247.53354.paul@codesourcery.com>
2007-11-07 23:06 ` J. Mayer
2007-11-07 23:37 ` Paul Brook
2007-11-09 22:04 ` J. Mayer
2007-11-08 13:09 ` Tristan Gingold
2007-11-08 20:09 ` J. Mayer [this message]
2007-11-07 22:40 ` Thiemo Seufer
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=1194552562.21588.36.camel@rapid \
--to=l_indien@magic.fr \
--cc=gingold@adacore.com \
--cc=qemu-devel@nongnu.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).