[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH] enable/disable dom0_11_mapping from command-line and default to enabled





On 01/05/2014 07:24 PM, Stefano Stabellini wrote:
On Sun, 5 Jan 2014, Karim Raslan wrote:
Signed-off-by: Karim Raslan <karim.allah.ahmed@xxxxxxxxx>

Thanks!
Given that dom0_11_mapping is an int, the patch is OK.
However it might be better to turn dom0_11_mapping into a bool_t and use
boolean_param instead.

After reading the thread "Master not working on AllWinner A20", I still don't see why this patch is useful.

Unless if the platform has an IOMMU, the 1:1 mapping for the memory SHOULD be enabled. Otherwise DMA-capable won't work.

See my answer on your mail (thread "Master not working on AllWinner for A20") for a proper fix.

--
Julien Grall

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.