hw/ppc/spapr_pci_vfio.c

4  * Copyright (c) 2011-2014 Alexey Kardashevskiy, IBM Corporation.
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
24 #include "hw/pci-host/spapr.h"
27 #include "hw/vfio/vfio-container.h"
28 #include "qemu/error-report.h"
38      * As of 2016-03-04 (linux-4.5) the host kernel EEH/VFIO  in vfio_eeh_container_ok()
42      * iterate across all groups in the container, without any logic  in vfio_eeh_container_ok()
52     if (QLIST_EMPTY(&container->group_list)) {  in vfio_eeh_container_ok()
56     if (QLIST_NEXT(QLIST_FIRST(&container->group_list), container_next)) {  in vfio_eeh_container_ok()
74         return -EPERM;  in vfio_eeh_container_op()
77     ret = ioctl(container->fd, VFIO_EEH_PE_OP, &pe_op);  in vfio_eeh_container_op()
80         return -errno;  in vfio_eeh_container_op()
91     if (QLIST_EMPTY(&space->containers)) {  in vfio_eeh_as_container()
96     bcontainer = QLIST_FIRST(&space->containers);  in vfio_eeh_as_container()
124         return -ENODEV;  in vfio_eeh_as_op()
131     return vfio_eeh_as_ok(&sphb->iommu_as);  in spapr_phb_eeh_available()
136     vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_ENABLE);  in spapr_phb_vfio_eeh_reenable()
144      * ensures that the contained PCI devices will work properly  in spapr_phb_vfio_reset()
155     if (object_dynamic_cast(OBJECT(pdev), "vfio-pci")) {  in spapr_eeh_pci_find_device()
177          * based on buid passed as argument to ibm,set-eeh-option rtas  in spapr_phb_vfio_eeh_set_option()
179          * pass-through devices (vfio-pci) under this sphb bus.  in spapr_phb_vfio_eeh_set_option()
180          * We have already validated that all the devices under this sphb  in spapr_phb_vfio_eeh_set_option()
185          * eeh-set-option for each device in the PE using the device's  in spapr_phb_vfio_eeh_set_option()
190          * eeh-set-option when the argument isn't a valid PE address  in spapr_phb_vfio_eeh_set_option()
195         pci_for_each_device(phb->bus, (addr >> 16) & 0xFF,  in spapr_phb_vfio_eeh_set_option()
211     default:  in spapr_phb_vfio_eeh_set_option()
215     ret = vfio_eeh_as_op(&sphb->iommu_as, op);  in spapr_phb_vfio_eeh_set_option()
227     ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_GET_STATE);  in spapr_phb_vfio_eeh_get_state()
241     if (!object_dynamic_cast(OBJECT(pdev), "vfio-pci")) {  in spapr_phb_vfio_eeh_clear_dev_msix()
255                                             pdev->msix_cap + PCI_MSIX_FLAGS,  in spapr_phb_vfio_eeh_clear_dev_msix()
259                                      pdev->msix_cap + PCI_MSIX_FLAGS,  in spapr_phb_vfio_eeh_clear_dev_msix()
276        pci_for_each_bus(phb->bus, spapr_phb_vfio_eeh_clear_bus_msix, NULL);  in spapr_phb_vfio_eeh_pre_reset()
296     default:  in spapr_phb_vfio_eeh_reset()
300     ret = vfio_eeh_as_op(&sphb->iommu_as, op);  in spapr_phb_vfio_eeh_reset()
312     ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_CONFIGURE);  in spapr_phb_vfio_eeh_configure()