diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc/spapr_pci_vfio.c | 115 | ||||
| -rw-r--r-- | hw/vfio/common.c | 1 |
2 files changed, 116 insertions, 0 deletions
diff --git a/hw/ppc/spapr_pci_vfio.c b/hw/ppc/spapr_pci_vfio.c index 144912bf54..99a1be5113 100644 --- a/hw/ppc/spapr_pci_vfio.c +++ b/hw/ppc/spapr_pci_vfio.c @@ -76,6 +76,117 @@ static void spapr_phb_vfio_reset(DeviceState *qdev) /* Do nothing */ } +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; +} + +static int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_eeh_pe_op op = { .argsz = sizeof(op) }; + int ret; + + op.op = VFIO_EEH_PE_GET_STATE; + ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid, + VFIO_EEH_PE_OP, &op); + if (ret < 0) { + return RTAS_OUT_PARAM_ERROR; + } + + *state = ret; + return RTAS_OUT_SUCCESS; +} + +static int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, 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_SLOT_RESET_DEACTIVATE: + op.op = VFIO_EEH_PE_RESET_DEACTIVATE; + break; + case RTAS_SLOT_RESET_HOT: + op.op = VFIO_EEH_PE_RESET_HOT; + break; + case RTAS_SLOT_RESET_FUNDAMENTAL: + op.op = VFIO_EEH_PE_RESET_FUNDAMENTAL; + 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; +} + +static int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_eeh_pe_op op = { .argsz = sizeof(op) }; + int ret; + + op.op = VFIO_EEH_PE_CONFIGURE; + ret = vfio_container_ioctl(&svphb->phb.iommu_as, svphb->iommugroupid, + VFIO_EEH_PE_OP, &op); + if (ret < 0) { + return RTAS_OUT_PARAM_ERROR; + } + + return RTAS_OUT_SUCCESS; +} + static void spapr_phb_vfio_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -84,6 +195,10 @@ static void spapr_phb_vfio_class_init(ObjectClass *klass, void *data) dc->props = spapr_phb_vfio_properties; dc->reset = spapr_phb_vfio_reset; spc->finish_realize = spapr_phb_vfio_finish_realize; + spc->eeh_set_option = spapr_phb_vfio_eeh_set_option; + spc->eeh_get_state = spapr_phb_vfio_eeh_get_state; + spc->eeh_reset = spapr_phb_vfio_eeh_reset; + spc->eeh_configure = spapr_phb_vfio_eeh_configure; } static const TypeInfo spapr_phb_vfio_info = { diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 9db7d8da17..148eb53fc6 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -949,6 +949,7 @@ int vfio_container_ioctl(AddressSpace *as, int32_t groupid, switch (req) { case VFIO_CHECK_EXTENSION: case VFIO_IOMMU_SPAPR_TCE_GET_INFO: + case VFIO_EEH_PE_OP: break; default: /* Return an error on unknown requests */ |