static int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb, unsigned int addr, int option) { sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); struct vfio_eeh_pe_op op = { .argsz = sizeof(op) }; int ret; switch (option) { case RTAS_EEH_DISABLE: op.op = VFIO_EEH_PE_DISABLE; break; case RTAS_EEH_ENABLE: { PCIHostState *phb; PCIDevice *pdev; /* * The EEH functionality is enabled on basis of PCI device, * instead of PE. We need check the validity of the PCI * device address. */ phb = PCI_HOST_BRIDGE(sphb); pdev = pci_find_device(phb->bus, (addr >> 16) & 0xFF, (addr >> 8) & 0xFF); if (!pdev) { return RTAS_OUT_PARAM_ERROR; } op.op = VFIO_EEH_PE_ENABLE; break; } case RTAS_EEH_THAW_IO: op.op = VFIO_EEH_PE_UNFREEZE_IO; break; case RTAS_EEH_THAW_DMA: op.op = VFIO_EEH_PE_UNFREEZE_DMA; break; default: return RTAS_OUT_PARAM_ERROR; } ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid, VFIO_EEH_PE_OP, &op); if (ret < 0) { return RTAS_OUT_HW_ERROR; } return RTAS_OUT_SUCCESS; }