Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru> --- hw/ppc/spapr_pci_vfio.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+)
diff --git a/hw/ppc/spapr_pci_vfio.c b/hw/ppc/spapr_pci_vfio.c index d3bddf2..b72aff0 100644 --- a/hw/ppc/spapr_pci_vfio.c +++ b/hw/ppc/spapr_pci_vfio.c @@ -71,6 +71,75 @@ static void spapr_phb_vfio_finish_realize(sPAPRPHBState *sphb, Error **errp) spapr_tce_get_iommu(tcet)); } +static int spapr_pci_vfio_ddw_query(sPAPRPHBState *sphb, + uint32_t *windows_available, + uint32_t *page_size_mask) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_iommu_spapr_tce_query query = { .argsz = sizeof(query) }; + int ret; + + ret = vfio_container_ioctl(&sphb->iommu_as, svphb->iommugroupid, + VFIO_IOMMU_SPAPR_TCE_QUERY, &query); + if (ret) { + return ret; + } + + *windows_available = query.windows_available; + *page_size_mask = query.page_size_mask; + + return ret; +} + +static int spapr_pci_vfio_ddw_create(sPAPRPHBState *sphb, uint32_t page_shift, + uint32_t window_shift, uint32_t liobn, + sPAPRTCETable **ptcet) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_iommu_spapr_tce_create create = { + .argsz = sizeof(create), + .page_shift = page_shift, + .window_shift = window_shift, + .start_addr = 0 + }; + int ret; + + ret = vfio_container_ioctl(&sphb->iommu_as, svphb->iommugroupid, + VFIO_IOMMU_SPAPR_TCE_CREATE, &create); + if (ret) { + return ret; + } + + *ptcet = spapr_tce_new_table(DEVICE(sphb), liobn, create.start_addr, + page_shift, 1 << (window_shift - page_shift), + true); + memory_region_add_subregion(&sphb->iommu_root, (*ptcet)->bus_offset, + spapr_tce_get_iommu(*ptcet)); + + return ret; +} + +static int spapr_pci_vfio_ddw_remove(sPAPRPHBState *sphb, sPAPRTCETable *tcet) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_iommu_spapr_tce_remove remove = { + .argsz = sizeof(remove), + .start_addr = tcet->bus_offset + }; + + return vfio_container_ioctl(&sphb->iommu_as, svphb->iommugroupid, + VFIO_IOMMU_SPAPR_TCE_REMOVE, &remove); +} + +static int spapr_pci_vfio_ddw_reset(sPAPRPHBState *sphb) +{ + sPAPRPHBVFIOState *svphb = SPAPR_PCI_VFIO_HOST_BRIDGE(sphb); + struct vfio_iommu_spapr_tce_reset reset = { .argsz = sizeof(reset) }; + + return vfio_container_ioctl(&sphb->iommu_as, svphb->iommugroupid, + VFIO_IOMMU_SPAPR_TCE_RESET, &reset); +} + static void spapr_phb_vfio_reset(DeviceState *qdev) { /* Do nothing */ @@ -84,6 +153,10 @@ 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->ddw_query = spapr_pci_vfio_ddw_query; + spc->ddw_create = spapr_pci_vfio_ddw_create; + spc->ddw_remove = spapr_pci_vfio_ddw_remove; + spc->ddw_reset = spapr_pci_vfio_ddw_reset; } static const TypeInfo spapr_phb_vfio_info = { -- 2.0.0 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev