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Re: [PATCH v7 6/8] AMD/IOMMU: provide function backing XENMEM_reserved_device_memory_map
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 26 Aug 2021 14:24:02 +0100
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- Cc: Paul Durrant <paul@xxxxxxx>
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On 26/08/2021 08:25, Jan Beulich wrote:
> --- a/xen/drivers/passthrough/amd/iommu_map.c
> +++ b/xen/drivers/passthrough/amd/iommu_map.c
> @@ -467,6 +467,81 @@ int amd_iommu_reserve_domain_unity_unmap
> return rc;
> }
>
> +int amd_iommu_get_reserved_device_memory(iommu_grdm_t *func, void *ctxt)
> +{
> + unsigned int seg = 0 /* XXX */, bdf;
Is this XXX intended to stay?
I can't say I'm fussed about multi-segment handling, given the absence
of support on any hardware I've ever encountered.
~Andrew
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