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xen-users
[Xen-users] Re: Merge Xen (the hypervisor) into Linux
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To: |
Ingo Molnar <mingo@xxxxxxx> |
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Subject: |
[Xen-users] Re: Merge Xen (the hypervisor) into Linux |
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From: |
"Chris Friesen" <cfriesen@xxxxxxxxxx> |
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Date: |
Wed, 03 Jun 2009 11:31:13 -0600 |
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Cc: |
"npiggin@xxxxxxx" <npiggin@xxxxxxx>, "jeremy@xxxxxxxx" <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "wimcoekaerts@xxxxxxxxxxxx" <wimcoekaerts@xxxxxxxxxxxx>, "gregkh@xxxxxxx" <gregkh@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxxxxx>, "kurt.hackel@xxxxxxxxxx" <kurt.hackel@xxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, Stephen Spector <stephen.spector@xxxxxxxxxx>, "avi@xxxxxxxxxx" <avi@xxxxxxxxxx>, "EAnderson@xxxxxxxxxx" <EAnderson@xxxxxxxxxx>, "jens.axboe@xxxxxxxxxx" <jens.axboe@xxxxxxxxxx>, ksrinivasan <ksrinivasan@xxxxxxxxxx>, "torvalds@xxxxxxxxxxxxxxxxxxxx" <torvalds@xxxxxxxxxxxxxxxxxxxx>, David Miller <davem@xxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx> |
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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
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- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, (continued)
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Alan Cox
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Keir Fraser
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Theodore Tso
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Keir Fraser
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Gerd Hoffmann
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux,
Chris Friesen <=
- [Xen-users] Re: Merge Xen (the hypervisor) into Linux, Alan Cox
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