From: "Chris Friesen" <cfriesen@nortel.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>,
George Dunlap <george.dunlap@eu.citrix.com>,
David Miller <davem@davemloft.net>,
"jeremy@goop.org" <jeremy@goop.org>,
Dan Magenheimer <dan.magenheimer@oracle.com>,
"avi@redhat.com" <avi@redhat.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Keir Fraser <Keir.Fraser@eu.citrix.com>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"gregkh@suse.de" <gregkh@suse.de>,
"kurt.hackel@oracle.com" <kurt.hackel@oracle.com>,
Ian Pratt <Ian.Pratt@eu.citrix.com>,
"xen-users@lists.xensource.com" <xen-users@lists.xensource.com>,
ksrinivasan <ksrinivasan@novell.com>,
"EAnderson@novell.com" <EAnderson@novell.com>,
"wimcoekaerts@wimmekes.net" <wimcoekaerts@wimmekes.net>,
Stephen Spector <stephen.spector@citrix.com>,
"jens.axboe@oracle.com" <jens.axboe@oracle.com>,
"npiggin@suse.de" <npiggin@suse.de>
Subject: Re: Merge Xen (the hypervisor) into Linux
Date: Wed, 03 Jun 2009 11:31:13 -0600 [thread overview]
Message-ID: <4A26B361.5000600@nortel.com> (raw)
In-Reply-To: <20090602232843.GA6577@elte.hu>
Ingo Molnar wrote:
> A lot of Xen legacies could be dropped: the crazy ring1 hack on
> 32-bit, the various wide interfaces to make pure-software
> virtualization limp along. All major CPUs shipped with hardware
> virtualization support in the past 2-3 years, so the availability of
> VMX and SVM can be taken for granted for such a project.
That's a pretty bold statement. I have five x86 machines in my house
currently being used, and none of them support VMX/SVM.
At least some Lenovo laptops disable VMX in the BIOS with no way to
enable it. Some of the Core2Duo chips don't support VMX at all.
I think Xen without paravirtualization would be a serious degradation of
usefulness.
Chris
next prev parent reply other threads:[~2009-06-03 17:31 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-12 23:25 [GIT PULL] Xen APIC hooks (with io_apic_ops) Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 01/17] xen/dom0: handle acpi lapic parsing in Xen dom0 Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 02/17] x86: add io_apic_ops to allow interception Jeremy Fitzhardinge
2009-05-25 3:54 ` Ingo Molnar
2009-05-27 7:17 ` Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 03/17] xen: implement io_apic_ops Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 04/17] xen: create dummy ioapic mapping Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 05/17] xen: implement pirq type event channels Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 06/17] x86/io_apic: add get_nr_irqs_gsi() Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 07/17] xen/apic: identity map gsi->irqs Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 08/17] xen: direct irq registration to pirq event channels Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 09/17] xen: bind pirq to vector and event channel Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 10/17] xen: pre-initialize legacy irqs early Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 11/17] xen: don't setup acpi interrupt unless there is one Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 12/17] xen: use acpi_get_override_irq() to get triggering for legacy irqs Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 13/17] xen: initialize irq 0 too Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 14/17] xen: dynamically allocate irq & event structures Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 15/17] xen: set pirq name to something useful Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 16/17] xen: fix legacy irq setup, make ioapic-less machines work Jeremy Fitzhardinge
2009-05-12 23:25 ` [PATCH 17/17] xen: disable MSI Jeremy Fitzhardinge
2009-05-19 12:35 ` [GIT PULL] Xen APIC hooks (with io_apic_ops) Ingo Molnar
2009-05-20 17:57 ` Jeremy Fitzhardinge
2009-05-25 4:10 ` Ingo Molnar
2009-05-26 12:46 ` [Xen-devel] " George Dunlap
2009-05-26 18:26 ` Avi Kivity
2009-05-26 19:18 ` Dan Magenheimer
2009-05-26 19:41 ` Avi Kivity
2009-05-28 0:13 ` Ingo Molnar
2009-05-28 0:49 ` Jeremy Fitzhardinge
2009-05-28 3:47 ` Dan Magenheimer
2009-05-28 14:26 ` George Dunlap
2009-05-29 0:45 ` Xen is a feature Jeremy Fitzhardinge
2009-05-29 1:27 ` Greg KH
2009-05-29 4:05 ` David Miller
2009-05-29 6:37 ` Jaswinder Singh Rajput
2009-05-29 6:51 ` David Miller
2009-05-29 12:01 ` George Dunlap
2009-05-29 14:14 ` Pasi Kärkkäinen
2009-05-29 21:29 ` David Miller
[not found] ` <87tz33ep1b.fsf@basil.nowhere.org>
2009-05-29 21:31 ` [Xen-devel] " Jeremy Fitzhardinge
2009-05-29 23:09 ` Nakajima, Jun
2009-05-29 23:26 ` Jeremy Fitzhardinge
2009-06-02 15:23 ` Thomas Gleixner
2009-06-02 16:41 ` George Dunlap
2009-06-02 17:28 ` Chris Friesen
2009-06-02 17:46 ` Linus Torvalds
2009-06-02 18:02 ` Linus Torvalds
2009-06-02 18:59 ` Avi Kivity
2009-06-07 9:13 ` Ingo Molnar
2009-06-07 10:01 ` Avi Kivity
2009-06-07 10:35 ` Ingo Molnar
2009-06-07 12:46 ` Avi Kivity
2009-06-07 13:02 ` Jaswinder Singh Rajput
2009-06-04 14:02 ` [Xen-users] " Thomas Goirand
2009-06-02 18:59 ` Thomas Gleixner
2009-06-03 19:49 ` Bill Davidsen
2009-06-03 20:20 ` Thomas Gleixner
2009-06-03 22:37 ` Bill Davidsen
2009-06-03 23:29 ` Frans Pop
2009-06-04 13:21 ` George Dunlap
2009-06-04 15:10 ` Theodore Tso
2009-06-04 15:31 ` Chris Friesen
2009-06-05 4:14 ` Bill Davidsen
2009-06-05 4:55 ` Chris Friesen
2009-06-02 22:40 ` Steven Rostedt
2009-06-02 23:28 ` Merge Xen (the hypervisor) into Linux Ingo Molnar
2009-06-03 0:00 ` Dan Magenheimer
2009-06-03 0:32 ` Thomas Gleixner
2009-06-03 2:43 ` Theodore Tso
2009-06-03 3:42 ` Steven Rostedt
2009-06-03 4:49 ` Dan Magenheimer
2009-06-03 4:58 ` David Miller
2009-06-03 5:07 ` Steven Rostedt
2009-06-03 5:22 ` Steven Rostedt
2009-06-03 12:03 ` George Dunlap
2009-06-03 19:05 ` Theodore Tso
[not found] ` <4A27CF94.1050903@gmx.de>
2009-06-04 14:03 ` [Xen-users] " Steven Rostedt
2009-06-03 7:28 ` Gerd Hoffmann
2009-06-03 8:47 ` Alan Cox
2009-06-03 9:09 ` Gerd Hoffmann
2009-06-03 9:20 ` Keir Fraser
2009-06-03 11:15 ` Theodore Tso
2009-06-03 11:39 ` Keir Fraser
2009-06-03 11:41 ` Gerd Hoffmann
2009-06-03 1:00 ` Joel Becker
2009-06-03 2:00 ` david
2009-06-03 7:59 ` Alan Cox
2009-06-03 8:07 ` Christian Tramnitz
2009-06-04 18:53 ` Linus Torvalds
2009-06-05 0:09 ` Samuel Thibault
2009-06-05 0:18 ` David Miller
2009-06-05 0:54 ` Linus Torvalds
2009-06-03 17:31 ` Chris Friesen [this message]
2009-06-03 17:36 ` Alan Cox
2009-06-02 23:41 ` Xen is a feature Thomas Gleixner
2009-05-30 2:19 ` [Xen-devel] " Andy Burns
2009-05-26 21:19 ` [Xen-devel] Re: [GIT PULL] Xen APIC hooks (with io_apic_ops) Gerd Hoffmann
2009-05-27 10:14 ` George Dunlap
2009-05-24 20:10 ` Avi Kivity
2009-05-25 3:51 ` Ingo Molnar
2009-05-25 4:55 ` Avi Kivity
2009-05-25 5:06 ` Ingo Molnar
2009-05-25 5:12 ` Avi Kivity
2009-05-25 5:19 ` Ingo Molnar
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