On 12/01/2015 04:04, Chen Fan wrote:
+static int vfio_add_ext_capabilities(VFIOPCIDevice *vdev)
+{
+ PCIDevice *pdev = &vdev->pdev;
+ PCIExpressDevice *exp;
+ uint32_t header;
+ uint16_t next = PCI_CONFIG_SPACE_SIZE;
+
+ if (pci_config_size(pdev) <= PCI_CONFIG_SPACE_SIZE) {
+ return 0;
+ }
+
+ header = pci_get_long(pdev->config + next);
+ while (header) {
+ switch (PCI_EXT_CAP_ID(header)) {
+ case PCI_EXT_CAP_ID_ERR:
+ exp = &pdev->exp;
+ exp->aer_cap = next;
+
+ /* enable the error report */
+ vfio_add_emulated_long(vdev, exp->exp_cap + PCI_EXP_DEVCTL,
+ PCI_EXP_DEVCTL_CERE | PCI_EXP_DEVCTL_NFERE |
+ PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE, ~0);
+ break;
+ };
+
+ next = PCI_EXT_CAP_NEXT(header);
+ if (!next) {
+ return 0;
+ }
+ header = pci_get_long(pdev->config + next);
+ }
+
+ return 0;
+}
+
Please add a property to the VFIO device, defaulting to true, and
disable it for older machine types.