From: Carsten Otte <cotte@de.ibm.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Peter Chubb <peterc@gelato.unsw.edu.au>,
virtualization@lists.linux-foundation.org, linux-mm@kvack.org,
avi Kivity <avi@qumranet.com>
Subject: Re: RFC: multiple address spaces for one process
Date: Sat, 30 Jun 2007 06:19:21 +0200 [thread overview]
Message-ID: <4685D9C9.20504@de.ibm.com> (raw)
In-Reply-To: <468517E1.4050803@goop.org>
Jeremy Fitzhardinge wrote:
> It might be interesting if the two cases could be unified in some way,
> so that the VMMs could use a common usermode mechanism to achieve the
> same end, which is what Carsten was proposing. But its not obvious to
> me how much common mechanism can be pulled out, since its a pretty
> deeply architecture-specific operation.
The big difference here is that LinuxOnLinux does represent guest
virtual addressing in these mm structs where all other kernel based
VMMs do represent guest physical in the user address space. That
somewhat disqualifies LinuxOnLinux to share the commonality.
Whether or not proposed patch makes sense for shaddow page tables is
unknown to me, since we have nested paging on s390.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-06-30 2:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-26 11:08 Peter Chubb
2007-06-29 14:32 ` Jeremy Fitzhardinge
2007-06-30 4:19 ` Carsten Otte [this message]
2007-06-30 9:59 ` Peter Chubb
2007-06-30 16:30 ` Jeremy Fitzhardinge
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4685D9C9.20504@de.ibm.com \
--to=cotte@de.ibm.com \
--cc=avi@qumranet.com \
--cc=carsteno@de.ibm.com \
--cc=jeremy@goop.org \
--cc=linux-mm@kvack.org \
--cc=peterc@gelato.unsw.edu.au \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox