Re: [Xen-devel] [PATCH 1 of 6 V6] amd iommu: Add 2 hypercalls for libxc

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 08.03.12 at 14:21, Wei Wang <wei.wang2@xxxxxxx> wrote:
> # HG changeset patch
> # User Wei Wang <wei.wang2@xxxxxxx>
> # Date 1331210211 -3600
> # Node ID 810296995a893c1bec898a366f08520fbae755fb
> # Parent  f611200469159a960c3f0b975aa0f91ec768e29f
> amd iommu: Add 2 hypercalls for libxc
> 
> iommu_set_msi: used by qemu to inform hypervisor iommu vector number in
> guest space. Hypervisor needs this vector to inject msi into guest after
> writing PPR logs back to guest.
> 
> iommu_bind_bdf: used by xl to bind virtual bdf to machine bdf for passthru
> devices. IOMMU emulator receives iommu cmd from guest OS and then forwards
> them to host iommu. Virtual device ids in guest iommu commands must be
> converted into physical ids before sending them to real hardware.

So patch 5 uses the latter one, but the former one is still dead code?

Jan


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