From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Jeff Dike <jdike-OPE4K8JWMJJBDgjK7y7TUQ@public.gmane.org>
Cc: kvm-devel
<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [RFC 0/8]KVM: swap out guest pages
Date: Tue, 24 Jul 2007 08:22:53 +0300 [thread overview]
Message-ID: <46A58CAD.7070807@qumranet.com> (raw)
In-Reply-To: <20070723200659.GA13508-1LLyehjZOUUZWFFyALql+T+iFHGzDt/a@public.gmane.org>
Jeff Dike wrote:
> On Mon, Jul 23, 2007 at 01:27:40PM +0300, Avi Kivity wrote:
>
>> Having an address_space (like your patch does) is remarkably simple, and
>> requires few hooks from the current vm. However using existing vmas
>> mapped by the user has many advantages:
>>
>
> It's also needed for a SKAS-like UML client, where the host side will
> need to make system calls on behalf of the guest.
>
>
Even in the current model, guest physical memory is mmap()ed into host
userspace. The kernel cannot enforce this, however.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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next prev parent reply other threads:[~2007-07-24 5:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-23 6:51 [RFC 0/8]KVM: swap out guest pages Shaohua Li
[not found] ` <1185173489.2645.64.camel-yAZKuqJtXNMXR+D7ky4Foa2pdiUAq4bhAL8bYrjMMd8@public.gmane.org>
2007-07-23 10:27 ` Avi Kivity
[not found] ` <46A4829C.9080104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-23 12:25 ` Christoph Hellwig
[not found] ` <20070723122510.GA3674-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2007-07-23 12:29 ` Avi Kivity
[not found] ` <46A49F30.5010206-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-23 12:34 ` Christoph Hellwig
[not found] ` <20070723123443.GB3674-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2007-07-23 12:39 ` Avi Kivity
2007-07-24 2:00 ` Shaohua Li
2007-07-23 20:06 ` Jeff Dike
[not found] ` <20070723200659.GA13508-1LLyehjZOUUZWFFyALql+T+iFHGzDt/a@public.gmane.org>
2007-07-24 5:22 ` Avi Kivity [this message]
[not found] ` <46A58CAD.7070807-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-25 16:15 ` Jeff Dike
[not found] ` <20070725161544.GA7747-1LLyehjZOUUZWFFyALql+T+iFHGzDt/a@public.gmane.org>
2007-07-25 17:12 ` Carsten Otte
2007-07-23 23:10 ` Rusty Russell
2007-07-24 5:30 ` [kvm-devel] " Avi Kivity
[not found] ` <46A58E8B.8050507-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-24 6:11 ` Rusty Russell
[not found] ` <1185257474.1803.216.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-07-24 6:21 ` Avi Kivity
[not found] ` <46A59A75.8050501-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-24 6:45 ` Rusty Russell
[not found] ` <1185259509.1803.237.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-07-24 6:59 ` Avi Kivity
[not found] ` <46A5A36E.8000409-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-24 7:17 ` Rusty Russell
2007-07-24 1:42 ` Shaohua Li
[not found] ` <1185241357.24201.12.camel-yAZKuqJtXNMXR+D7ky4Foa2pdiUAq4bhAL8bYrjMMd8@public.gmane.org>
2007-07-24 5:42 ` Avi Kivity
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