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hv: Remove need for init_fallback_iommu_domain and fallback_iommu_domain

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In the presence of SOS, ACRN uses fallback_iommu_domain which is the same
used by SOS, to assign domain to devices during ACRN init. Also it uses
fallback_iommu_domain when DM requests ACRN to remove device from UOS domain.
This patch changes the design of assign/remove_iommu_device to avoid the
concept of fallback_iommu_domain and its setup. This way ACRN can commonly
treat pre-launched VMs bringup w.r.t. IOMMU domain creation.

Tracked-On: #2965
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Sainath Grandhi
2019-04-13 11:57:25 -07:00
committed by ACRN System Integration
parent 948d58fb9c
commit 824caf8ce0
7 changed files with 40 additions and 116 deletions
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9
doc/developer-guides/hld/hv-vt-d.rst
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@@ -306,9 +306,6 @@ deinitialization:
.. doxygenfunction:: init_iommu
:project: Project ACRN
.. doxygenfunction:: init_fallback_iommu_domain
:project: Project ACRN
runtime
=======
@@ -326,9 +323,5 @@ The following API are provided during runtime:
.. doxygenfunction:: resume_iommu
:project: Project ACRN
.. doxygenfunction:: assign_pt_device
.. doxygenfunction:: move_pt_device
:project: Project ACRN
.. doxygenfunction:: unassign_pt_device
:project: Project ACRN