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iommu/arm-smmu-v3: Support IOMMU_VIOMMU_ALLOC

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Add a new driver-type for ARM SMMUv3 to enum iommu_viommu_type. Implement
an arm_vsmmu_alloc().

As an initial step, copy the VMID from s2_parent. A followup series is
required to give the VIOMMU object it's own VMID that will be used in all
nesting configurations.

Link: https://patch.msgid.link/r/8-v4-9e99b76f3518+3a8-smmuv3_nesting_jgg@nvidia.com
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Nicolin Chen 2024-10-30 21:20:52 -03:00 • committed by Jason Gunthorpe
commit 69d9b312f3
4 changed files with 63 additions and 0 deletions
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