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vfio/iommufd: Implement [at|de]tach_hwpt handlers

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Implement [at|de]tach_hwpt handlers in VFIO subsystem. vIOMMU
utilizes them to attach to or detach from hwpt on host side.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Link: https://lore.kernel.org/qemu-devel/20250604062115.4004200-4-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Zhenzhong Duan 2025-06-04 14:21:14 +08:00 • committed by Cédric Le Goater
parent 98962d6298
commit e50a3ead97
1 changed files with 22 additions and 0 deletions
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22
hw/vfio/iommufd.c
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@ -815,6 +815,24 @@ static void vfio_iommu_iommufd_class_init(ObjectClass *klass, const void *data)
vioc->query_dirty_bitmap = iommufd_query_dirty_bitmap;
};
static bool
host_iommu_device_iommufd_vfio_attach_hwpt(HostIOMMUDeviceIOMMUFD *idev,
uint32_t hwpt_id, Error **errp)
{
VFIODevice *vbasedev = HOST_IOMMU_DEVICE(idev)->agent;
return !iommufd_cdev_attach_ioas_hwpt(vbasedev, hwpt_id, errp);
}
static bool
host_iommu_device_iommufd_vfio_detach_hwpt(HostIOMMUDeviceIOMMUFD *idev,
Error **errp)
{
VFIODevice *vbasedev = HOST_IOMMU_DEVICE(idev)->agent;
return iommufd_cdev_detach_ioas_hwpt(vbasedev, errp);
}
static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
Error **errp)
{
@ -869,10 +887,14 @@ hiod_iommufd_vfio_get_page_size_mask(HostIOMMUDevice *hiod)
static void hiod_iommufd_vfio_class_init(ObjectClass *oc, const void *data)
{
HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc);
HostIOMMUDeviceIOMMUFDClass *idevc = HOST_IOMMU_DEVICE_IOMMUFD_CLASS(oc);
hiodc->realize = hiod_iommufd_vfio_realize;
hiodc->get_iova_ranges = hiod_iommufd_vfio_get_iova_ranges;
hiodc->get_page_size_mask = hiod_iommufd_vfio_get_page_size_mask;
idevc->attach_hwpt = host_iommu_device_iommufd_vfio_attach_hwpt;
idevc->detach_hwpt = host_iommu_device_iommufd_vfio_detach_hwpt;
};
static const TypeInfo types[] = {