58 lines
1.8 KiB
Diff
58 lines
1.8 KiB
Diff
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From 184e5195a815d57701cd9358f4b0537025729833 Mon Sep 17 00:00:00 2001
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From: libai <libai12@huawei.com>
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Date: Wed, 26 Mar 2025 20:44:40 +0800
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Subject: [PATCH] vdpa/iommufd:support associating iommufd backend for vDPA
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devices
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The following parameters can associate the iommufd object with the vdpa device:
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-object iommufd,id=iommufd1
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-device '{
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"driver":"vhost-vdpa-device-pci",
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"id":"vhostdev0",
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"vhostdev":"/dev/vhost-vdpa-1",
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"iommufd":"iommufd1",
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}'
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Signed-off-by: libai <libai12@huawei.com>
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---
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hw/virtio/vdpa-dev.c | 1 +
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include/hw/virtio/vdpa-dev.h | 2 ++
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2 files changed, 3 insertions(+)
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diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
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index bd787cf39c..9ce7ed7eae 100644
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--- a/hw/virtio/vdpa-dev.c
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+++ b/hw/virtio/vdpa-dev.c
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@@ -356,6 +356,7 @@ static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
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static Property vhost_vdpa_device_properties[] = {
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DEFINE_PROP_STRING("vhostdev", VhostVdpaDevice, vhostdev),
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DEFINE_PROP_UINT16("queue-size", VhostVdpaDevice, queue_size, 0),
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+ DEFINE_PROP_LINK("iommufd", VhostVdpaDevice, iommufd, TYPE_IOMMUFD_BACKEND, IOMMUFDBackend *),
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DEFINE_PROP_END_OF_LIST(),
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};
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diff --git a/include/hw/virtio/vdpa-dev.h b/include/hw/virtio/vdpa-dev.h
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index 60e9c3f3fe..accdb7fa28 100644
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--- a/include/hw/virtio/vdpa-dev.h
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+++ b/include/hw/virtio/vdpa-dev.h
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@@ -18,6 +18,7 @@
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#include "hw/virtio/vhost.h"
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#include "hw/virtio/vhost-vdpa.h"
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#include "qom/object.h"
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+#include "sysemu/iommufd.h"
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#define TYPE_VHOST_VDPA_DEVICE "vhost-vdpa-device"
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@@ -41,6 +42,7 @@ struct VhostVdpaDevice {
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int (*post_init)(VhostVdpaDevice *v, Error **errp);
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VMChangeStateEntry *vmstate;
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Notifier migration_state;
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+ IOMMUFDBackend *iommufd;
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};
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#endif
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--
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2.41.0.windows.1
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