From: Olaf Hering <olaf@aepfle.de>
To: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Cc: andres@gridcentric.ca, xen-devel@lists.xensource.com,
tim@xen.org, keir.xen@gmail.com, adin@gridcentric.ca
Subject: Re: [PATCH 0 of 2] Mem event ring management overhaul
Date: Wed, 7 Dec 2011 14:17:53 +0100 [thread overview]
Message-ID: <20111207131753.GA27309@aepfle.de> (raw)
In-Reply-To: <d33d99829ec12990334e271eeb36b06c.squirrel@webmail.lagarcavilla.org>
On Tue, Dec 06, Andres Lagar-Cavilla wrote:
> If the request comes from the guest itself, and it requires
> paging_populate (!= p2m_query), the event is guaranteed to be put in the
> ring, and then the vcpu goes to sleep.
>
> Easy-peasy
If everything were so easy. ;-)
I will try to combine your patch with my paging waitqueue change.
Perhaps your change should disallow paging if max_cpus is larger than
RING_SIZE().
Olaf
next prev parent reply other threads:[~2011-12-07 13:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-05 15:24 [PATCH 0 of 2] Mem event ring management overhaul Andres Lagar-Cavilla
2011-12-05 15:24 ` [PATCH 1 of 2] Allow decrease_reservation to be preempted if remove_page returns negative Andres Lagar-Cavilla
2011-12-06 9:48 ` Jan Beulich
2011-12-05 15:24 ` [PATCH 2 of 2] Improve ring management for memory events. Do not lose guest events Andres Lagar-Cavilla
2011-12-06 17:26 ` [PATCH 0 of 2] Mem event ring management overhaul Olaf Hering
2011-12-06 17:43 ` Andres Lagar-Cavilla
2011-12-07 13:17 ` Olaf Hering [this message]
2011-12-07 16:26 ` Andres Lagar-Cavilla
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