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Subject: [PATCH v8 19/28] vfio-user: set up PCI in vfio_user_pci_realize()
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From: Jagannathan Raman <jag.raman@oracle.com>
Re-use PCI setup functions from hw/vfio/pci.c to realize the vfio-user
PCI device.
Originally-by: John Johnson <john.g.johnson@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: John Levon <john.levon@nutanix.com>
---
hw/vfio-user/pci.c | 42 ++++++++++++++++++++++++++++++++++++++++++
hw/vfio/pci.c | 18 +++++++++---------
hw/vfio/pci.h | 9 +++++++++
3 files changed, 60 insertions(+), 9 deletions(-)
diff --git a/hw/vfio-user/pci.c b/hw/vfio-user/pci.c
index 26d2960985..b8c1cc34c2 100644
--- a/hw/vfio-user/pci.c
+++ b/hw/vfio-user/pci.c
@@ -75,6 +75,7 @@ static void vfio_user_pci_realize(PCIDevice *pdev, Error =
**errp)
AddressSpace *as;
SocketAddress addr;
VFIOUserProxy *proxy;
+ int ret;
=20
/*
* TODO: make option parser understand SocketAddress
@@ -127,8 +128,45 @@ static void vfio_user_pci_realize(PCIDevice *pdev, Err=
or **errp)
goto error;
}
=20
+ if (!vfio_populate_device(vdev, errp)) {
+ goto error;
+ }
+
+ /* Get a copy of config space */
+ ret =3D vbasedev->io->region_read(vbasedev, VFIO_PCI_CONFIG_REGION_IND=
EX, 0,
+ MIN(pci_config_size(pdev), vdev->config_siz=
e),
+ pdev->config);
+ if (ret < (int)MIN(pci_config_size(&vdev->pdev), vdev->config_size)) {
+ error_setg_errno(errp, -ret, "failed to read device config space");
+ goto error;
+ }
+
+ if (!vfio_pci_config_setup(vdev, errp)) {
+ goto error;
+ }
+
+ /*
+ * vfio_pci_config_setup will have registered the device's BARs
+ * and setup any MSIX BARs, so errors after it succeeds must
+ * use out_teardown
+ */
+
+ if (!vfio_add_capabilities(vdev, errp)) {
+ goto out_teardown;
+ }
+
+ if (!vfio_interrupt_setup(vdev, errp)) {
+ goto out_teardown;
+ }
+
+ vfio_register_err_notifier(vdev);
+ vfio_register_req_notifier(vdev);
+
return;
=20
+out_teardown:
+ vfio_teardown_msi(vdev);
+ vfio_bars_exit(vdev);
error:
error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name);
}
@@ -164,6 +202,10 @@ static void vfio_user_instance_finalize(Object *obj)
VFIOPCIDevice *vdev =3D VFIO_PCI_BASE(obj);
VFIODevice *vbasedev =3D &vdev->vbasedev;
=20
+ vfio_bars_finalize(vdev);
+ g_free(vdev->emulated_config_bits);
+ g_free(vdev->rom);
+
vfio_pci_put_device(vdev);
=20
if (vbasedev->proxy !=3D NULL) {
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 168e331607..f85215417d 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -1730,7 +1730,7 @@ static bool vfio_msix_setup(VFIOPCIDevice *vdev, int =
pos, Error **errp)
return true;
}
=20
-static void vfio_teardown_msi(VFIOPCIDevice *vdev)
+void vfio_teardown_msi(VFIOPCIDevice *vdev)
{
msi_uninit(&vdev->pdev);
=20
@@ -1831,7 +1831,7 @@ static void vfio_bars_register(VFIOPCIDevice *vdev)
}
}
=20
-static void vfio_bars_exit(VFIOPCIDevice *vdev)
+void vfio_bars_exit(VFIOPCIDevice *vdev)
{
int i;
=20
@@ -1851,7 +1851,7 @@ static void vfio_bars_exit(VFIOPCIDevice *vdev)
}
}
=20
-static void vfio_bars_finalize(VFIOPCIDevice *vdev)
+void vfio_bars_finalize(VFIOPCIDevice *vdev)
{
int i;
=20
@@ -2419,7 +2419,7 @@ static void vfio_add_ext_cap(VFIOPCIDevice *vdev)
return;
}
=20
-static bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev =3D &vdev->pdev;
=20
@@ -2768,7 +2768,7 @@ bool vfio_populate_vga(VFIOPCIDevice *vdev, Error **e=
rrp)
return true;
}
=20
-static bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp)
{
VFIODevice *vbasedev =3D &vdev->vbasedev;
struct vfio_region_info *reg_info =3D NULL;
@@ -2886,7 +2886,7 @@ static void vfio_err_notifier_handler(void *opaque)
* and continue after disabling error recovery support for the
* device.
*/
-static void vfio_register_err_notifier(VFIOPCIDevice *vdev)
+void vfio_register_err_notifier(VFIOPCIDevice *vdev)
{
Error *err =3D NULL;
int32_t fd;
@@ -2945,7 +2945,7 @@ static void vfio_req_notifier_handler(void *opaque)
}
}
=20
-static void vfio_register_req_notifier(VFIOPCIDevice *vdev)
+void vfio_register_req_notifier(VFIOPCIDevice *vdev)
{
struct vfio_irq_info irq_info =3D { .argsz =3D sizeof(irq_info),
.index =3D VFIO_PCI_REQ_IRQ_INDEX };
@@ -3001,7 +3001,7 @@ static void vfio_unregister_req_notifier(VFIOPCIDevic=
e *vdev)
vdev->req_enabled =3D false;
}
=20
-static bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev =3D &vdev->pdev;
VFIODevice *vbasedev =3D &vdev->vbasedev;
@@ -3094,7 +3094,7 @@ static bool vfio_pci_config_setup(VFIOPCIDevice *vdev=
, Error **errp)
return true;
}
=20
-static bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
+bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp)
{
PCIDevice *pdev =3D &vdev->pdev;
=20
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index c0f030f4db..7e126822f9 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -218,6 +218,15 @@ Object *vfio_pci_get_object(VFIODevice *vbasedev);
int vfio_pci_save_config(VFIODevice *vbasedev, QEMUFile *f, Error **errp);
int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f);
void vfio_pci_put_device(VFIOPCIDevice *vdev);
+bool vfio_populate_device(VFIOPCIDevice *vdev, Error **errp);
+void vfio_teardown_msi(VFIOPCIDevice *vdev);
+void vfio_bars_exit(VFIOPCIDevice *vdev);
+void vfio_bars_finalize(VFIOPCIDevice *vdev);
+bool vfio_add_capabilities(VFIOPCIDevice *vdev, Error **errp);
+void vfio_register_err_notifier(VFIOPCIDevice *vdev);
+void vfio_register_req_notifier(VFIOPCIDevice *vdev);
+bool vfio_pci_config_setup(VFIOPCIDevice *vdev, Error **errp);
+bool vfio_interrupt_setup(VFIOPCIDevice *vdev, Error **errp);
void vfio_instance_init(Object *obj);
=20
uint64_t vfio_vga_read(void *opaque, hwaddr addr, unsigned size);
--=20
2.34.1