Re: [Qemu-devel] [PATCH qemu v2] target-ppc: kvm: make use of KVM_CREATE_SPAPR_TCE_64

2017-03-09 Thread David Gibson
On Fri, Mar 10, 2017 at 12:41:13PM +1100, Alexey Kardashevskiy wrote: > KVM_CAP_SPAPR_TCE capability allows creating TCE tables in KVM which > allows having in-kernel acceleration for H_PUT_TCE_xxx hypercalls. > However it only supports 32bit DMA windows at zero bus offset. > > There is a new KVM_

[Qemu-devel] [PATCH qemu v2] target-ppc: kvm: make use of KVM_CREATE_SPAPR_TCE_64

2017-03-09 Thread Alexey Kardashevskiy
KVM_CAP_SPAPR_TCE capability allows creating TCE tables in KVM which allows having in-kernel acceleration for H_PUT_TCE_xxx hypercalls. However it only supports 32bit DMA windows at zero bus offset. There is a new KVM_CAP_SPAPR_TCE_64 capability which supports 64bit window size, variable page size