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.
Paolo
