[v1] Check and sync host IOMMU cap/ecap with vIOMMU

[PATCH rfcv2 06/18] vfio: Introduce host_iommu_device_init callback

Zhenzhong Duan posted 18 patches 9 months, 4 weeks ago

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Maintainers: Yi Liu <yi.l.liu@intel.com>, Eric Auger <eric.auger@redhat.com>, Zhenzhong Duan <zhenzhong.duan@intel.com>, "Michael S. Tsirkin" <mst@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Peter Xu <peterx@redhat.com>, Jason Wang <jasowang@redhat.com>, Thomas Huth <thuth@redhat.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, Tony Krowiak <akrowiak@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Jason Herne <jjherne@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>

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[PATCH rfcv2 06/18] vfio: Introduce host_iommu_device_init callback

Posted by Zhenzhong Duan 9 months, 4 weeks ago

Introduce host_iommu_device_init callback and a wrapper for it.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 include/hw/vfio/vfio-common.h         | 1 +
 include/hw/vfio/vfio-container-base.h | 1 +
 hw/vfio/common.c                      | 8 ++++++++
 3 files changed, 10 insertions(+)

diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 24e3eaaf3d..9c4b60c906 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -216,6 +216,7 @@ struct vfio_device_info *vfio_get_device_info(int fd);
 int vfio_attach_device(char *name, VFIODevice *vbasedev,
                        AddressSpace *as, Error **errp);
 void vfio_detach_device(VFIODevice *vbasedev);
+void host_iommu_device_init(VFIODevice *vbasedev);
 
 int vfio_kvm_device_add_fd(int fd, Error **errp);
 int vfio_kvm_device_del_fd(int fd, Error **errp);
diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h
index b2813b0c11..c71f4abb2d 100644
--- a/include/hw/vfio/vfio-container-base.h
+++ b/include/hw/vfio/vfio-container-base.h
@@ -120,6 +120,7 @@ struct VFIOIOMMUClass {
     int (*attach_device)(const char *name, VFIODevice *vbasedev,
                          AddressSpace *as, Error **errp);
     void (*detach_device)(VFIODevice *vbasedev);
+    void (*host_iommu_device_init)(VFIODevice *vbasedev);
     /* migration feature */
     int (*set_dirty_page_tracking)(const VFIOContainerBase *bcontainer,
                                    bool start);
diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 8b3b575c9d..f7f85160be 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -1521,3 +1521,11 @@ void vfio_detach_device(VFIODevice *vbasedev)
     }
     vbasedev->bcontainer->ops->detach_device(vbasedev);
 }
+
+void host_iommu_device_init(VFIODevice *vbasedev)
+{
+    const VFIOIOMMUClass *ops = vbasedev->bcontainer->ops;
+
+    assert(ops->host_iommu_device_init);
+    ops->host_iommu_device_init(vbasedev);
+}
-- 
2.34.1