[v1] vfio queue

[PULL 09/42] vfio/container: Implement HostIOMMUDeviceClass::get_cap() handler

Cédric Le Goater posted 42 patches 5 months ago

Diff against v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v2 v2 v2
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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>, Jason Wang <jasowang@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Alex Williamson <alex.williamson@redhat.com>, "Cédric Le Goater" <clg@redhat.com>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Peter Xu <peterx@redhat.com>, David Hildenbrand <david@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>

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[PULL 09/42] vfio/container: Implement HostIOMMUDeviceClass::get_cap() handler

Posted by Cédric Le Goater 5 months ago

From: Zhenzhong Duan <zhenzhong.duan@intel.com>

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>
---
 hw/vfio/container.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/hw/vfio/container.c b/hw/vfio/container.c
index 2f62c13214412618b412240b61efcbe1b1c79ed5..99beeba422ebfe49caed4fcd57afe5514dea8b39 100644
--- a/hw/vfio/container.c
+++ b/hw/vfio/container.c
@@ -1147,11 +1147,26 @@ static bool hiod_legacy_vfio_realize(HostIOMMUDevice *hiod, void *opaque,
     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)
 {
     HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc);
 
     hioc->realize = hiod_legacy_vfio_realize;
+    hioc->get_cap = hiod_legacy_vfio_get_cap;
 };
 
 static const TypeInfo types[] = {
-- 
2.45.2