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[PATCH v2 08/10] vfio: Create host IOMMU device instance

Zhenzhong Duan posted 10 patches 1 year, 10 months ago
Maintainers: Paolo Bonzini <pbonzini@redhat.com>, 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>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>
[PATCH v2 08/10] vfio: Create host IOMMU device instance
Posted by Zhenzhong Duan 1 year, 10 months ago 
Create host IOMMU device instance and initialize it based on backend.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
---
 include/hw/vfio/vfio-common.h | 1 +
 hw/vfio/container.c           | 5 +++++
 hw/vfio/iommufd.c             | 8 ++++++++
 3 files changed, 14 insertions(+)

diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index d382b12ec1..4fbba85018 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -126,6 +126,7 @@ typedef struct VFIODevice {
     OnOffAuto pre_copy_dirty_page_tracking;
     bool dirty_pages_supported;
     bool dirty_tracking;
+    HostIOMMUDevice *hiod;
     int devid;
     IOMMUFDBackend *iommufd;
 } VFIODevice;
diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index ba0ad4a41b..fc0c027501 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -915,6 +915,7 @@ static int vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
     VFIODevice *vbasedev_iter;
     VFIOGroup *group;
     VFIOContainerBase *bcontainer;
+    HIODLegacyVFIO *hiod_vfio;
     int ret;
 
     if (groupid < 0) {
@@ -945,6 +946,9 @@ static int vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
     vbasedev->bcontainer = bcontainer;
     QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev, container_next);
     QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
+    hiod_vfio = HIOD_LEGACY_VFIO(object_new(TYPE_HIOD_LEGACY_VFIO));
+    hiod_vfio->vdev = vbasedev;
+    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
 
     return ret;
 }
@@ -959,6 +963,7 @@ static void vfio_legacy_detach_device(VFIODevice *vbasedev)
     trace_vfio_detach_device(vbasedev->name, group->groupid);
     vfio_put_base_device(vbasedev);
     vfio_put_group(group);
+    object_unref(vbasedev->hiod);
 }
 
 static int vfio_legacy_pci_hot_reset(VFIODevice *vbasedev, bool single)
diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index 115b9f8e7f..b6d058339b 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -308,6 +308,7 @@ static int iommufd_cdev_attach(const char *name, VFIODevice *vbasedev,
     VFIOIOMMUFDContainer *container;
     VFIOAddressSpace *space;
     struct vfio_device_info dev_info = { .argsz = sizeof(dev_info) };
+    HIODIOMMUFDVFIO *hiod_vfio;
     int ret, devfd;
     uint32_t ioas_id;
     Error *err = NULL;
@@ -431,6 +432,12 @@ found_container:
     QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev, container_next);
     QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
 
+    hiod_vfio = HIOD_IOMMUFD_VFIO(object_new(TYPE_HIOD_IOMMUFD_VFIO));
+    hiod_iommufd_init(HIOD_IOMMUFD(hiod_vfio), vbasedev->iommufd,
+                      vbasedev->devid);
+    hiod_vfio->vdev = vbasedev;
+    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
+
     trace_iommufd_cdev_device_info(vbasedev->name, devfd, vbasedev->num_irqs,
                                    vbasedev->num_regions, vbasedev->flags);
     return 0;
@@ -468,6 +475,7 @@ static void iommufd_cdev_detach(VFIODevice *vbasedev)
     iommufd_cdev_detach_container(vbasedev, container);
     iommufd_cdev_container_destroy(container);
     vfio_put_address_space(space);
+    object_unref(vbasedev->hiod);
 
     iommufd_cdev_unbind_and_disconnect(vbasedev);
     close(vbasedev->fd);
-- 
2.34.1
Re: [PATCH v2 08/10] vfio: Create host IOMMU device instance
Posted by Cédric Le Goater 1 year, 10 months ago 
On 4/8/24 10:12, Zhenzhong Duan wrote:
> Create host IOMMU device instance and initialize it based on backend.
> 
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
> ---
>   include/hw/vfio/vfio-common.h | 1 +
>   hw/vfio/container.c           | 5 +++++
>   hw/vfio/iommufd.c             | 8 ++++++++
>   3 files changed, 14 insertions(+)
> 
> diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
> index d382b12ec1..4fbba85018 100644
> --- a/include/hw/vfio/vfio-common.h
> +++ b/include/hw/vfio/vfio-common.h
> @@ -126,6 +126,7 @@ typedef struct VFIODevice {
>       OnOffAuto pre_copy_dirty_page_tracking;
>       bool dirty_pages_supported;
>       bool dirty_tracking;
> +    HostIOMMUDevice *hiod;
>       int devid;
>       IOMMUFDBackend *iommufd;
>   } VFIODevice;
> diff --git a/hw/vfio/container.c b/hw/vfio/container.c
> index ba0ad4a41b..fc0c027501 100644
> --- a/hw/vfio/container.c
> +++ b/hw/vfio/container.c
> @@ -915,6 +915,7 @@ static int vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
>       VFIODevice *vbasedev_iter;
>       VFIOGroup *group;
>       VFIOContainerBase *bcontainer;
> +    HIODLegacyVFIO *hiod_vfio;

s/hiod_vfio/hiod/ please. Same below.


Thanks,

C.



>       int ret;
>   
>       if (groupid < 0) {
> @@ -945,6 +946,9 @@ static int vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
>       vbasedev->bcontainer = bcontainer;
>       QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev, container_next);
>       QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
> +    hiod_vfio = HIOD_LEGACY_VFIO(object_new(TYPE_HIOD_LEGACY_VFIO));
> +    hiod_vfio->vdev = vbasedev;
> +    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
>   
>       return ret;
>   }
> @@ -959,6 +963,7 @@ static void vfio_legacy_detach_device(VFIODevice *vbasedev)
>       trace_vfio_detach_device(vbasedev->name, group->groupid);
>       vfio_put_base_device(vbasedev);
>       vfio_put_group(group);
> +    object_unref(vbasedev->hiod);
>   }
>   
>   static int vfio_legacy_pci_hot_reset(VFIODevice *vbasedev, bool single)
> diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
> index 115b9f8e7f..b6d058339b 100644
> --- a/hw/vfio/iommufd.c
> +++ b/hw/vfio/iommufd.c
> @@ -308,6 +308,7 @@ static int iommufd_cdev_attach(const char *name, VFIODevice *vbasedev,
>       VFIOIOMMUFDContainer *container;
>       VFIOAddressSpace *space;
>       struct vfio_device_info dev_info = { .argsz = sizeof(dev_info) };
> +    HIODIOMMUFDVFIO *hiod_vfio;
>       int ret, devfd;
>       uint32_t ioas_id;
>       Error *err = NULL;
> @@ -431,6 +432,12 @@ found_container:
>       QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev, container_next);
>       QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
>   
> +    hiod_vfio = HIOD_IOMMUFD_VFIO(object_new(TYPE_HIOD_IOMMUFD_VFIO));
> +    hiod_iommufd_init(HIOD_IOMMUFD(hiod_vfio), vbasedev->iommufd,
> +                      vbasedev->devid);
> +    hiod_vfio->vdev = vbasedev;
> +    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
> +
>       trace_iommufd_cdev_device_info(vbasedev->name, devfd, vbasedev->num_irqs,
>                                      vbasedev->num_regions, vbasedev->flags);
>       return 0;
> @@ -468,6 +475,7 @@ static void iommufd_cdev_detach(VFIODevice *vbasedev)
>       iommufd_cdev_detach_container(vbasedev, container);
>       iommufd_cdev_container_destroy(container);
>       vfio_put_address_space(space);
> +    object_unref(vbasedev->hiod);
>   
>       iommufd_cdev_unbind_and_disconnect(vbasedev);
>       close(vbasedev->fd);
RE: [PATCH v2 08/10] vfio: Create host IOMMU device instance
Posted by Duan, Zhenzhong 1 year, 9 months ago 

>-----Original Message-----
>From: Cédric Le Goater <clg@redhat.com>
>Subject: Re: [PATCH v2 08/10] vfio: Create host IOMMU device instance
>
>On 4/8/24 10:12, Zhenzhong Duan wrote:
>> Create host IOMMU device instance and initialize it based on backend.
>>
>> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
>> ---
>>   include/hw/vfio/vfio-common.h | 1 +
>>   hw/vfio/container.c           | 5 +++++
>>   hw/vfio/iommufd.c             | 8 ++++++++
>>   3 files changed, 14 insertions(+)
>>
>> diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-
>common.h
>> index d382b12ec1..4fbba85018 100644
>> --- a/include/hw/vfio/vfio-common.h
>> +++ b/include/hw/vfio/vfio-common.h
>> @@ -126,6 +126,7 @@ typedef struct VFIODevice {
>>       OnOffAuto pre_copy_dirty_page_tracking;
>>       bool dirty_pages_supported;
>>       bool dirty_tracking;
>> +    HostIOMMUDevice *hiod;
>>       int devid;
>>       IOMMUFDBackend *iommufd;
>>   } VFIODevice;
>> diff --git a/hw/vfio/container.c b/hw/vfio/container.c
>> index ba0ad4a41b..fc0c027501 100644
>> --- a/hw/vfio/container.c
>> +++ b/hw/vfio/container.c
>> @@ -915,6 +915,7 @@ static int vfio_legacy_attach_device(const char
>*name, VFIODevice *vbasedev,
>>       VFIODevice *vbasedev_iter;
>>       VFIOGroup *group;
>>       VFIOContainerBase *bcontainer;
>> +    HIODLegacyVFIO *hiod_vfio;
>
>s/hiod_vfio/hiod/ please. Same below.

Will do.

Thanks
Zhenzhong

>
>
>Thanks,
>
>C.
>
>
>
>>       int ret;
>>
>>       if (groupid < 0) {
>> @@ -945,6 +946,9 @@ static int vfio_legacy_attach_device(const char
>*name, VFIODevice *vbasedev,
>>       vbasedev->bcontainer = bcontainer;
>>       QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev,
>container_next);
>>       QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
>> +    hiod_vfio =
>HIOD_LEGACY_VFIO(object_new(TYPE_HIOD_LEGACY_VFIO));
>> +    hiod_vfio->vdev = vbasedev;
>> +    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
>>
>>       return ret;
>>   }
>> @@ -959,6 +963,7 @@ static void vfio_legacy_detach_device(VFIODevice
>*vbasedev)
>>       trace_vfio_detach_device(vbasedev->name, group->groupid);
>>       vfio_put_base_device(vbasedev);
>>       vfio_put_group(group);
>> +    object_unref(vbasedev->hiod);
>>   }
>>
>>   static int vfio_legacy_pci_hot_reset(VFIODevice *vbasedev, bool single)
>> diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
>> index 115b9f8e7f..b6d058339b 100644
>> --- a/hw/vfio/iommufd.c
>> +++ b/hw/vfio/iommufd.c
>> @@ -308,6 +308,7 @@ static int iommufd_cdev_attach(const char *name,
>VFIODevice *vbasedev,
>>       VFIOIOMMUFDContainer *container;
>>       VFIOAddressSpace *space;
>>       struct vfio_device_info dev_info = { .argsz = sizeof(dev_info) };
>> +    HIODIOMMUFDVFIO *hiod_vfio;
>>       int ret, devfd;
>>       uint32_t ioas_id;
>>       Error *err = NULL;
>> @@ -431,6 +432,12 @@ found_container:
>>       QLIST_INSERT_HEAD(&bcontainer->device_list, vbasedev,
>container_next);
>>       QLIST_INSERT_HEAD(&vfio_device_list, vbasedev, global_next);
>>
>> +    hiod_vfio =
>HIOD_IOMMUFD_VFIO(object_new(TYPE_HIOD_IOMMUFD_VFIO));
>> +    hiod_iommufd_init(HIOD_IOMMUFD(hiod_vfio), vbasedev->iommufd,
>> +                      vbasedev->devid);
>> +    hiod_vfio->vdev = vbasedev;
>> +    vbasedev->hiod = HOST_IOMMU_DEVICE(hiod_vfio);
>> +
>>       trace_iommufd_cdev_device_info(vbasedev->name, devfd, vbasedev-
>>num_irqs,
>>                                      vbasedev->num_regions, vbasedev->flags);
>>       return 0;
>> @@ -468,6 +475,7 @@ static void iommufd_cdev_detach(VFIODevice
>*vbasedev)
>>       iommufd_cdev_detach_container(vbasedev, container);
>>       iommufd_cdev_container_destroy(container);
>>       vfio_put_address_space(space);
>> +    object_unref(vbasedev->hiod);
>>
>>       iommufd_cdev_unbind_and_disconnect(vbasedev);
>>       close(vbasedev->fd);

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