This patch introduces PCIPASIDOps for IOMMU related operations.
https://lists.gnu.org/archive/html/qemu-devel/2018-03/msg00078.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-03/msg00940.html
So far, to setup virt-SVA for assigned SVA capable device, needs to
configure host translation structures for specific pasid. (e.g. bind
guest page table to host and enable nested translation in host).
Besides, vIOMMU emulator needs to forward guest's cache invalidation
to host since host nested translation is enabled. e.g. on VT-d, guest
owns 1st level translation table, thus cache invalidation for 1st
level should be propagated to host.
This patch adds two functions: alloc_pasid and free_pasid to support
guest pasid allocation and free. The implementations of the callbacks
would be device passthru modules. Like vfio.
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Yi Sun <yi.y.sun@linux.intel.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
Signed-off-by: imxcc <xingchaochao@huawei.com>
(cherry picked from commit a72ba82a9dbcf6b5baa3b9f212fd14ec23fc5832)
This patch introduces PCIPASIDOps for IOMMU related operations.
https://lists.gnu.org/archive/html/qemu-devel/2018-03/msg00078.htmlhttps://lists.gnu.org/archive/html/qemu-devel/2018-03/msg00940.html
So far, to setup virt-SVA for assigned SVA capable device, needs to
configure host translation structures for specific pasid. (e.g. bind
guest page table to host and enable nested translation in host).
Besides, vIOMMU emulator needs to forward guest's cache invalidation
to host since host nested translation is enabled. e.g. on VT-d, guest
owns 1st level translation table, thus cache invalidation for 1st
level should be propagated to host.
This patch adds two functions: alloc_pasid and free_pasid to support
guest pasid allocation and free. The implementations of the callbacks
would be device passthru modules. Like vfio.
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Yi Sun <yi.y.sun@linux.intel.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com>
