From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Subject: using GNTTABOP_transfer on hvm guests
Date: Fri, 24 Sep 2010 22:33:26 +0200 [thread overview]
Message-ID: <20100924203326.GA10791@aepfle.de> (raw)
While looking for more missing p2m_is_paging(p2mt) checks I noticed that
also the GNTTABOP_transfer code path may return GNTST_eagain if all code
paths get changed to verify the p2mt.
But can this really happen? Reading the comments for
MODPARM_rx_copy/MODPARM_rx_flip in drivers/xen/netfront/netfront.c
indicates that hvm guests will not use the GNTTABOP_transfer path.
Are there any possible users for GNTTABOP_transfer in a hvm guest?
Could xenpaging ever work for paravirtualized guests?
Olaf
next reply other threads:[~2010-09-24 20:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-24 20:33 Olaf Hering [this message]
2010-09-25 6:46 ` using GNTTABOP_transfer on hvm guests Keir Fraser
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