From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: john stultz <johnstul@us.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
virtualization <virtualization@lists.linux-foundation.org>,
Matt Mackall <mpm@selenic.com>
Subject: Re: [PATCH 2/2] lguest: handle dodgy/non-existent TSC. Guest code.
Date: Thu, 05 Jul 2007 10:56:23 -0700 [thread overview]
Message-ID: <468D30C7.7050103@goop.org> (raw)
In-Reply-To: <1183536605.6005.19.camel@localhost.localdomain>
Rusty Russell wrote:
> Yes, but jiffies is the lowest-rated clock (so PIT will get chosen). I
> initially mugged clocksource_jiffies.rating, but that felt wrong: it's
> currently not registered when this code runs so it's a simple
> assignment, but if code order was to change it would have to be a call
> to clocksource_change_rating().
>
> There's an internal clocksource_override which I could use, but I'd have
> to make it non-static.
>
> Maybe John has thoughts?
How about having lguest_tsc and lguest_jiffies clocksources, with the
approprate ratings to get them selected when needed? And lguest_jiffies
could probably just be a new structure which points to the normal
jiffies clocksource function(s).
J
next prev parent reply other threads:[~2007-07-05 17:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-04 6:19 [PATCH 1/2] lguest: handle dodgy/non-existent TSC. Host code Rusty Russell
2007-07-04 6:20 ` [PATCH 2/2] lguest: handle dodgy/non-existent TSC. Guest code Rusty Russell
2007-07-04 6:44 ` Tony Breeds
2007-07-04 8:10 ` Rusty Russell
2007-07-05 15:37 ` john stultz
2007-07-05 17:56 ` Jeremy Fitzhardinge [this message]
2007-07-04 13:20 ` [PATCH 1/2] lguest: handle dodgy/non-existent TSC. Host code Matt Mackall
2007-07-05 1:38 ` Rusty Russell
2007-07-05 6:41 ` Matt Mackall
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