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vfio/iommufd: Add hw_caps field to HostIOMMUDeviceCaps 

Store the value of @caps returned by iommufd_backend_get_device_info()
in a new field HostIOMMUDeviceCaps::hw_caps. Right now the only value is
whether device IOMMU supports dirty tracking (IOMMU_HW_CAP_DIRTY_TRACKING).

This is in preparation for HostIOMMUDevice::realize() being called early
during attach_device().

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
This commit is contained in:
Joao Martins 2024-07-22 22:13:20 +01:00 committed by Cédric Le Goater
parent 6c63532642
commit 21e8d3a3aa
2 changed files with 5 additions and 0 deletions
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1
hw/vfio/iommufd.c
View File

@ -725,6 +725,7 @@ static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
hiod->name = g_strdup(vdev->name);
caps->type = type;
caps->hw_caps = hw_caps;
return true;
}

4
include/sysemu/host_iommu_device.h
View File

@ -19,9 +19,13 @@
* struct HostIOMMUDeviceCaps - Define host IOMMU device capabilities.
*
* @type: host platform IOMMU type.
*
* @hw_caps: host platform IOMMU capabilities (e.g. on IOMMUFD this represents
* the @out_capabilities value returned from IOMMU_GET_HW_INFO ioctl)
*/
typedef struct HostIOMMUDeviceCaps {
uint32_t type;
uint64_t hw_caps;
} HostIOMMUDeviceCaps;
#define TYPE_HOST_IOMMU_DEVICE "host-iommu-device"