taskThe GNU Hurd - Tasks: task #5468, Port GNU Mach to the Xen VMM

 
 

task #5468: Port GNU Mach to the Xen VMM

Submitted by:  Thomas Schwinge <tschwinge>
Submitted on:  Wed 19 Apr 2006 03:27:35 PM UTC  
Votes:  36  
 
Category:  GNU Mach Should Start On:  Tue 18 Apr 2006 10:00:00 PM UTC
Should be Finished on:  Tue 18 Apr 2006 10:00:00 PM UTC Priority:  1 - Later
Status:  In Progress Privacy:  Public
Percent Complete:  90% Assigned to:  Samuel Thibault <sthibaul>
Open/Closed:  Open Planned Release:  None
Effort:  0.00
Wiki-like text discussion box: 

remaining item:
- make pygrub provide us with modules
- move barrier, wmb, rmb, mb, TOSTR from i386/i386/xen.h to somewhere less Xenish

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Sun 11 Feb 2007 08:06:23 PM UTC, comment #2:

On Wed, Jan 03, 2007 at 01:18:18PM +0100, I wrote:

> On Tue, Jan 02, 2007 at 10:21:14PM +0100, Samuel Thibault wrote:
> > Thomas Schwinge, le Tue 02 Jan 2007 12:10:49 +0100, a ?crit :
> > > Do you have your development tree publically available?
> >
> > > If not, you could also work on a tree in the Savannah GNU Mach
> > > repository, if you want.
> >
> > Well, why not, since it does work a bit now.
>
> So, feel free to create a branch, perhaps called
> `gnumach-1-branch-Xen-branch' [...].


This is exactly what Samuel has just done. Feel free to test and help!
So far the functionality is the same as his posted patch had.

Thomas Schwinge <tschwinge>
Project Administrator
Tue 02 Jan 2007 01:11:03 AM UTC, comment #1:

A crude first ugly patch.

It at least boots my Hurd in read-only mode fine! And by faking write mode, I could run make in /src/hurd/ :)

As expected, pure userland programs like for (i=0;i<1000000;) run as fast as natively. On the other hand, dd < /dev/zero > /dev/null bs=1 runs 6 times slower, but that's three times better than qemu with kqemu

Remaining items (I'll work on them shortly)

- enable block write
- net device (should be easy now that rings work)
- asynchronous events support
- clock support

(file #11663)

Samuel Thibault <sthibaul>
Project MemberIn charge of this item.
Wed 19 Apr 2006 03:27:35 PM UTC, original submission:

Porting GNU Mach to make it run in a DomU under the Xen VMM might enable more people to easily and effectively use GNU Mach (and with that the current Hurd implementation). That is at full speed and with hassle-free networking compared to using an emulator like QEMU and without the need to have a spare machine (costly, if at all possible) or double booting (uncomfortable).

This task involves a) enabling the main Mach kernel to run under Xen and b) write / port the device drivers (block and network) to make it possible to use the ``devices'' Xen provides.

Thomas Schwinge <tschwinge>
Project Administrator

 

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  • -email is unavailable- added by tschwinge (Posted a comment)
  • -email is unavailable- added by sthibaul (Updated the item)
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    Follow 21 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    11/16/2007 sthibaul Wiki-like text discussion boxI could compile glibc 2.5! remaining item: - make pygrub provide us with modules - fixmes, todos and xxxs => remaining item: - make pygrub provide us with modules - move barrier, wmb, rmb, mb, TOSTR from i386/i386/xen.h to somewhere less Xenish
    11/15/2007 sthibaul Wiki-like text discussion boxI could compile glibc 2.5! remaining item: - cleaning :) => I could compile glibc 2.5! remaining item: - make pygrub provide us with modules - fixmes, todos and xxxs
    03/01/2007 sthibaul Percent Complete80% => 90%
        Wiki-like text discussion box I could compile glibc! remaining items: - asynchronous network send and block read/write - cleaning :) - dropping few remaining useless hardware drivers (kd_mouse, kd_queue, kd_event, com) => I could compile glibc 2.5! remaining item: - cleaning :)
    02/20/2007 sthibaul Percent Complete70% => 80%
        Wiki-like text discussion boxblock, net and events do work ! remaining items: - cpy_npages > 1 in net driver - asynchronous network and block drivers - cleaning :) - dropping useless hardware drivers (Linux for instance) => I could compile glibc! remaining items: - asynchronous network send and block read/write - cleaning :) - dropping few remaining useless hardware drivers (kd_mouse, kd_queue, kd_event, com)
    02/19/2007 sthibaul Percent Complete50% => 70%
        Wiki-like text discussion boxblock & net do work remaining items: - fix hang on pfinet start - fix clock computation - asynchronous events support => block, net and events do work ! remaining items: - cpy_npages > 1 in net driver - asynchronous network and block drivers - cleaning :) - dropping useless hardware drivers (Linux for instance)
    02/18/2007 sthibaul Percent Complete20% => 50%
        Wiki-like text discussion box => block & net do work remaining items: - fix hang on pfinet start - fix clock computation - asynchronous events support
    02/18/2007 sthibaul Attached File#11663 => Removed
    02/11/2007 tschwinge StatusNone => In Progress
        Assigned toNone => sthibaul
    01/02/2007 sthibaul Percent Complete0% => 20%
    01/02/2007 sthibaul Attached File- => Added patch-gnumach-xen, #11663
    12/07/2006 esk Carbon-Copy- => Added esk
    08/06/2006 andrewy Carbon-Copy- => Added -email is unavailable-
        Carbon-Copy- => Added andrewy
    07/07/2006 lkundrak Carbon-Copy- => Added lkundrak
    06/01/2006 polar Carbon-Copy- => Added polar
    04/20/2006 ogi Carbon-Copy- => Added ogi

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