9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: dave.l@mac.com
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] From our "not quite grasping the concept" file
Date: Fri,  9 Nov 2007 01:07:53 +0000	[thread overview]
Message-ID: <DF049C15-47BD-422B-BCBF-05B1CD85A134@mac.com> (raw)
In-Reply-To: <13426df10711072331w6dd252a8jf65a5c8ac1320d08@mail.gmail.com>

What's really bizarre is that, if you read on,
it says
"PCI means that you can reuse all of the platform's infrastructure for
  irq allocation, discovery, device hotplug, and management."

i.e. mandates 386 style interrupt handling.

Even better:
"We will support non-pci for s390, but in order to support Windows and
  older Linux PCI is necessary."

WTF?  So this "virtual device" concept only works on either PCI-w/386- 
style-interrupts or s390 machines?

Is it just me or is the whole linux universe stark raving bonkers?

What does the PCI bus on a mobile phone look like?

DaveL

On 8 Nov 2007, at 07:31, ron minnich wrote:

> I offer this:
> http://groups.google.com/group/fa.linux.kernel/browse_thread/thread/ 
> 5f92fd9fa6c2c64f/ef69521d8d0bd004?lnk=raot
>
> "I dislike strings.  They make it look as if you have a nice  
> extensible
> interface, where in reality you have a poorly documented interface  
> which
> leads to poor interoperability."
>
> So, the decision in the linux virtualization world is to make all
> paravirtual devices look like ... drum roll ... PCI devices. Since, of
> course, PCI device is the Universal device.
>
> My brain hurts.
>
> ron


  parent reply	other threads:[~2007-11-09  1:07 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-08  7:31 ron minnich
2007-11-08 12:00 ` Richard Miller
2007-11-08 12:55   ` Eric Van Hensbergen
2007-11-08 15:20     ` erik quanstrom
2007-11-08 16:07       ` Latchesar Ionkov
2007-11-08 16:38         ` erik quanstrom
2007-11-08 17:24           ` Latchesar Ionkov
2007-11-08 16:10       ` Eric Van Hensbergen
2007-11-08 16:33         ` erik quanstrom
2007-11-08 16:42           ` ron minnich
2007-11-08 16:51             ` roger peppe
2007-11-08 13:57   ` erik quanstrom
2007-11-08 19:46 ` Pietro Gagliardi
2007-11-09  1:07 ` dave.l [this message]
2007-11-09  4:43   ` Paul Lalonde

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=DF049C15-47BD-422B-BCBF-05B1CD85A134@mac.com \
    --to=dave.l@mac.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).