[Qemu-devel] [PATCH 1/2] vfio-pci: add flag to identify vfio pci device

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

>From PCIDevice there is no way to know if the device has a backing
vfio device.

sPAPR guests inherits the "ibm,loc-code" from the pci pass through
device in hypervisor. This helps in identifying the device if there is
any failures using this "ibm,loc-code" for RAS capabilities.

CC: Alex Williamson <alex.williamson@redhat.com>
CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 hw/vfio/pci.c        | 2 ++
 include/hw/pci/pci.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 6b80539..95d666e 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3483,6 +3483,7 @@ static void vfio_instance_finalize(Object *obj)
     VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pci_dev);
     VFIOGroup *group = vdev->vbasedev.group;
 
+    pci_dev->is_vfio = false;
     vfio_unmap_bars(vdev);
     g_free(vdev->emulated_config_bits);
     g_free(vdev->rom);
@@ -3542,6 +3543,7 @@ static void vfio_instance_init(Object *obj)
     PCIDevice *pci_dev = PCI_DEVICE(obj);
     VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, PCI_DEVICE(obj));
 
+    pci_dev->is_vfio = true;
     device_add_bootindex_property(obj, &vdev->bootindex,
                                   "bootindex", NULL,
                                   &pci_dev->qdev, NULL);
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index b97c295..0ddc830 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -291,6 +291,8 @@ struct PCIDevice {
     /* SHPC */
     SHPCDevice *shpc;
 
+    bool is_vfio;
+
     /* Location of option rom */
     char *romfile;
     bool has_rom;
-- 
1.8.3.1