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Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support
From: |
Alex Williamson |
Subject: |
Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support |
Date: |
Tue, 10 Jul 2012 15:48:26 -0600 |
On Wed, 2012-07-11 at 07:32 +1000, Benjamin Herrenschmidt wrote:
> On Tue, 2012-07-10 at 10:55 -0600, Alex Williamson wrote:
> >
> > I wish you could do this through a MemoryListener like we do on x86.
> >
>
> Can you elaborate ? TCE (iommu) manipulation on PAPR is done via
> specific hypervisor calls, not sure what a MemoryListener would do
> here ...
Hmm, the guest directed iommu updates via hypercalls may not really fit
the MemoryListener model. I'm just trying to think of ways to avoid
having an offshoot of vfio in the power code base by making use of
common abstraction layers. If we got a region_add/del callback we could
potentially move the spapr map and unmap into vfio like we do for x86.
Thanks,
Alex
- [Qemu-devel] [PATCH 0/2] RFC: powerpc-vfio: adding support, Alexey Kardashevskiy, 2012/07/10
- [Qemu-devel] [PATCH 1/2] pseries pci: spapr_finalize_pci_setup introduced, Alexey Kardashevskiy, 2012/07/10
- [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Alexey Kardashevskiy, 2012/07/10
- Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Alexey Kardashevskiy, 2012/07/10
- Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Benjamin Herrenschmidt, 2012/07/10
- Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Alex Williamson, 2012/07/11
- Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Alexey Kardashevskiy, 2012/07/12
Re: [Qemu-devel] [PATCH 2/2] vfio-powerpc: added VFIO support, Scott Wood, 2012/07/10