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From: Akihiko Odaki <akihiko.odaki@daynix.com>
Date: Tue, 05 Mar 2024 17:58:52 +0900
Subject: [PATCH RFC v3 5/6] virtio-pci: Implement SR-IOV PF
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Allow user to attach SR-IOV VF to a virtio-pci PF.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
hw/virtio/virtio-pci.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 1a7039fb0c68..f6a2dbb3b5e2 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -2075,6 +2075,12 @@ static void virtio_pci_device_plugged(DeviceState *d=
, Error **errp)
pci_register_bar(&proxy->pci_dev, proxy->legacy_io_bar_idx,
PCI_BASE_ADDRESS_SPACE_IO, &proxy->bar);
}
+
+ if (pcie_sriov_pf_init_from_user_created_vfs(&proxy->pci_dev,
+ PCI_CONFIG_SPACE_SIZE,
+ errp)) {
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_SR_IOV);
+ }
}
=20
static void virtio_pci_device_unplugged(DeviceState *d)
@@ -2083,6 +2089,7 @@ static void virtio_pci_device_unplugged(DeviceState *=
d)
bool modern =3D virtio_pci_modern(proxy);
bool modern_pio =3D proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
=20
+ pcie_sriov_pf_exit(&proxy->pci_dev);
virtio_pci_stop_ioeventfd(proxy);
=20
if (modern) {
--=20
2.44.0