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 Apr 19 15:27:35 2006  
Votes:  36  
 
Category: GNU MachShould Start On: Tue Apr 18 22:00:00 2006
Should be Finished on: Tue Apr 18 22:00:00 2006Priority: 1 - Later
Status: In ProgressPrivacy: Public
Percent Complete: 90%Assigned to: Samuel Thibault <sthibaul>
Open/Closed: OpenPlanned 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 Feb 11 20:06:23 2007, 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 Jan 2 01:11:03 2007, 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 Apr 19 15:27:35 2006, 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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Carbon-Copy List
  • -unavailable- added by tschwinge (Posted a comment)
  • -unavailable- added by sthibaul (Updated the item)
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    Follow 21 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri Nov 16 06:11:25 2007sthibaulWiki-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
    Thu Nov 15 01:53:49 2007sthibaulWiki-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
    Thu Mar 1 23:21:25 2007sthibaulPercent 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 :)
    Tue Feb 20 09:08:41 2007sthibaulPercent 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)
    Mon Feb 19 03:06:58 2007sthibaulPercent 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)
    Sun Feb 18 01:14:14 2007sthibaulPercent Complete20%=>50%
      Wiki-like text discussion box=>block & net do work remaining items: - fix hang on pfinet start - fix clock computation - asynchronous events support
    Sun Feb 18 01:12:36 2007sthibaulAttached File#11663=>Removed
    Sun Feb 11 20:06:23 2007tschwingeStatusNone=>In Progress
      Assigned toNone=>sthibaul
    Tue Jan 2 01:11:03 2007sthibaulPercent Complete0%=>20%
    Tue Jan 2 01:11:02 2007sthibaulAttached File-=>Added patch-gnumach-xen, #11663
    Thu Dec 7 04:41:33 2006eskCarbon-Copy-=>Added esk
    Sun Aug 6 19:15:33 2006andrewyCarbon-Copy-=>Added -unavailable-
      Carbon-Copy-=>Added andrewy
    Fri Jul 7 09:31:26 2006lkundrakCarbon-Copy-=>Added lkundrak
    Thu Jun 1 13:15:34 2006polarCarbon-Copy-=>Added polar
    Thu Apr 20 10:13:32 2006ogiCarbon-Copy-=>Added ogi

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