From: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
To: Ky Srinivasan <ksrinivasan@novell.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: context switch
Date: Wed, 29 Mar 2006 10:06:46 +0100 [thread overview]
Message-ID: <1ae2e58ee99fc978bcf549cbea2b040d@cl.cam.ac.uk> (raw)
In-Reply-To: <44299342.E57C.0030.0@novell.com>
On 29 Mar 2006, at 01:49, Ky Srinivasan wrote:
> What are your thoughts on having a mechanism to manage hypervisor
> preemption from guest kernels?
Potentially a scheduler activations interface would be nice for SMP
guests, if it's not too hard to modify the OS to support it. I don't
see how a preemption aware interface would improve
prepare_arch_switch() though -- I already said that failsafe_handler()
should pick up the slack if you remove selector zeroing from
prepare_arch_switch(). You may get some noise from Xen on a debug
build, but things should carry on working just fine.
If I'm missing your point, you need to give some more details about
what you're proposing. :-)
-- Keir
next prev parent reply other threads:[~2006-03-29 9:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <44284B8E.E57C.0030.0@novell.com>
2006-03-28 16:31 ` context switch Ky Srinivasan
2006-03-28 17:33 ` Ky Srinivasan
2006-03-28 17:40 ` Keir Fraser
2006-03-28 19:35 ` Keir Fraser
2006-03-28 20:56 ` Keir Fraser
2006-03-29 0:49 ` Ky Srinivasan
2006-03-29 9:06 ` Keir Fraser [this message]
2006-03-29 0:44 ` Ky Srinivasan
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=1ae2e58ee99fc978bcf549cbea2b040d@cl.cam.ac.uk \
--to=keir.fraser@cl.cam.ac.uk \
--cc=ksrinivasan@novell.com \
--cc=xen-devel@lists.xensource.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.