From: Jeremy Fitzhardinge <jeremy@goop.org>
To: "Nakajima, Jun" <jun.nakajima@intel.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>,
kvm-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org,
Avi Kivity <avi@qumranet.com>
Subject: Re: [kvm-devel] [PATCH] Refactor hypercall infrastructure
Date: Fri, 14 Sep 2007 16:00:21 -0700 [thread overview]
Message-ID: <46EB1285.5050807@goop.org> (raw)
In-Reply-To: <97D612E30E1F88419025B06CB4CF1BE10379EBF9@scsmsx412.amr.corp.intel.com>
Nakajima, Jun wrote:
>>> one. Start the kvm leaves at 0x40001000 or something?
>>>
>>>
>> Yeah, that works with me.
>>
>
> To me this is the beginning of fragmentation. Why do we need different
> and VMM-specific Linux paravirtualization for hardware-assisted
> virtualization? That would not be good for Linux.
>
On the contrary. Xen already has a hypercall interface, and we need to
keep supporting it. If we were to also support a vmm-independent
interface (aka "kvm interface"), then we need to be able to do that in
parallel. If we have a cpuid leaf clash, then its impossible to do so;
if we define the new interface to be disjoint from other current users
of cpuid, then we can support them concurrently.
J
next prev parent reply other threads:[~2007-09-14 23:00 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-14 19:45 [PATCH] Refactor hypercall infrastructure Anthony Liguori
2007-09-14 20:53 ` Jeremy Fitzhardinge
2007-09-14 21:02 ` [kvm-devel] " Anthony Liguori
2007-09-14 21:20 ` Zachary Amsden
2007-09-14 21:44 ` Anthony Liguori
2007-09-15 3:37 ` Zachary Amsden
2007-09-15 8:08 ` Avi Kivity
2007-09-15 17:33 ` Anthony Liguori
2007-09-14 21:22 ` Jeremy Fitzhardinge
2007-09-14 21:46 ` Anthony Liguori
2007-09-14 21:52 ` Jeremy Fitzhardinge
2007-09-14 22:08 ` Anthony Liguori
2007-09-14 22:40 ` Nakajima, Jun
2007-09-14 23:00 ` Jeremy Fitzhardinge [this message]
2007-09-15 0:10 ` Nakajima, Jun
2007-09-15 0:28 ` Jeremy Fitzhardinge
2007-09-15 1:04 ` Nakajima, Jun
2007-09-15 4:53 ` Jeremy Fitzhardinge
2007-09-15 6:11 ` Nakajima, Jun
2007-09-15 18:23 ` Anthony Liguori
2007-09-17 18:14 ` Nakajima, Jun
2007-09-17 18:27 ` Anthony Liguori
2007-09-17 19:15 ` Jeremy Fitzhardinge
2007-09-17 19:33 ` Anthony Liguori
2007-09-17 19:15 ` Jeremy Fitzhardinge
2007-09-17 20:52 ` Nakajima, Jun
2007-09-15 8:00 ` Avi Kivity
2007-09-15 7:53 ` Avi Kivity
2007-09-15 2:35 ` Rusty Russell
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