On Fri, Aug 29, 2014 at 08:12:07PM +1000, Alexey Kardashevskiy wrote: > The existing KVM_CREATE_SPAPR_TCE ioctl only support 4G windows max as > the window size parameter to the kernel ioctl() is 32-bit so > there's no way of expressing a TCE window > 4GB. > > We are going to add huge DMA windows support so this will create small > window and unexpectedly fail later. > > This disables KVM_CREATE_SPAPR_TCE for windows bigger that 4GB. Since > those windows are normally mapped at the boot time, there will be no > performance impact. > > Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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