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vfio/container: Implement HostIOMMUDeviceClass::get_cap() handler

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Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Zhenzhong Duan 2024-06-05 16:30:35 +08:00 • committed by Cédric Le Goater
parent 9305895201
commit ed92ed2d48
1 changed files with 15 additions and 0 deletions
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15
hw/vfio/container.c
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@ -1147,11 +1147,26 @@ static bool hiod_legacy_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
return true; return true;
} }
static int hiod_legacy_vfio_get_cap(HostIOMMUDevice *hiod, int cap,
Error **errp)
{
HostIOMMUDeviceCaps *caps = &hiod->caps;
switch (cap) {
case HOST_IOMMU_DEVICE_CAP_AW_BITS:
return caps->aw_bits;
default:
error_setg(errp, "%s: unsupported capability %x", hiod->name, cap);
return -EINVAL;
}
}
static void hiod_legacy_vfio_class_init(ObjectClass *oc, void *data) static void hiod_legacy_vfio_class_init(ObjectClass *oc, void *data)
{ {
HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc); HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc);
hioc->realize = hiod_legacy_vfio_realize; hioc->realize = hiod_legacy_vfio_realize;
hioc->get_cap = hiod_legacy_vfio_get_cap;
}; };
static const TypeInfo types[] = { static const TypeInfo types[] = {