9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: erik quanstrom <quanstro@coraid.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] xen3 and pae problems
Date: Tue, 17 Apr 2007 11:43:19 -0400	[thread overview]
Message-ID: <0755f679170b84121b21a98bbda61c90@coraid.com> (raw)
In-Reply-To: <324fccf0704170654t226f1a8bne9a2e4b107c7f2b9@mail.gmail.com>

i've looked at it.

what do you mean by PAE support?  what would plan 9 need to
do to play nicely with xen3?

pae is already recognized by plan 9, but the default memory types are not
fiddled and you can't map a region with a specific pae type.

these changes are not too hard, but i haven't gotten to a place yet
where i need to implement anything but it may be that setting up
wc pci space will be necessiary for good performance with some 
pcie drivers. 

- erik

On Tue Apr 17 09:54:10 EDT 2007, osborne6@gmail.com wrote:
> the xen packages only include the hypervisor 'kernel', not the
> associated linux kernel that xen ends up starting for Dom0...
> 
> Out of curiosity, has anyone started work on PAE support for plan9?
> 
> On 4/17/07, Richard Miller <9fans@hamnavoe.com> wrote:
> > > I've tried using the non-pae package and setting grub to load the
> > > non-pae hypervisor.  The hypervisor then complains that the Dom0 linux
> > > kernel has pae enabled.
> >
> > Doesn't the non-pae xen package include a dom0 kernel?  If not, it
> > looks like you will indeed have to build one.


  reply	other threads:[~2007-04-17 15:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-17  4:34 John Osborne
2007-04-17  8:38 ` Richard Miller
2007-04-17 13:21   ` John Osborne
2007-04-17 13:37     ` Richard Miller
2007-04-17 13:54       ` John Osborne
2007-04-17 15:43         ` erik quanstrom [this message]
2007-04-17 18:15           ` ron minnich
2007-04-17 18:36             ` John Osborne

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=0755f679170b84121b21a98bbda61c90@coraid.com \
    --to=quanstro@coraid.com \
    --cc=9fans@cse.psu.edu \
    /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).