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[Xen-devel] using GNTTABOP_transfer on hvm guests
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] using GNTTABOP_transfer on hvm guests |
| From: | Olaf Hering <olaf@xxxxxxxxx> |
| Date: | Fri, 24 Sep 2010 22:33:26 +0200 |
| Delivery-date: | Fri, 24 Sep 2010 13:34:11 -0700 |
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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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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