diff options
Diffstat (limited to 'qemu/hw/ppc/spapr_pci_vfio.c')
| -rw-r--r-- | qemu/hw/ppc/spapr_pci_vfio.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/qemu/hw/ppc/spapr_pci_vfio.c b/qemu/hw/ppc/spapr_pci_vfio.c deleted file mode 100644 index cbd3d23c9..000000000 --- a/qemu/hw/ppc/spapr_pci_vfio.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * QEMU sPAPR PCI host for VFIO - * - * Copyright (c) 2011-2014 Alexey Kardashevskiy, IBM Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, - * or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu-common.h" -#include "cpu.h" -#include "hw/ppc/spapr.h" -#include "hw/pci-host/spapr.h" -#include "hw/pci/msix.h" -#include "linux/vfio.h" -#include "hw/vfio/vfio.h" -#include "qemu/error-report.h" - -#define TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE "spapr-pci-vfio-host-bridge" - -#define SPAPR_PCI_VFIO_HOST_BRIDGE(obj) \ - OBJECT_CHECK(sPAPRPHBVFIOState, (obj), TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE) - -typedef struct sPAPRPHBVFIOState sPAPRPHBVFIOState; - -struct sPAPRPHBVFIOState { - sPAPRPHBState phb; - - int32_t iommugroupid; -}; - -static Property spapr_phb_vfio_properties[] = { - DEFINE_PROP_INT32("iommu", sPAPRPHBVFIOState, iommugroupid, -1), - DEFINE_PROP_END_OF_LIST(), -}; - -static void spapr_phb_vfio_instance_init(Object *obj) -{ - error_report("spapr-pci-vfio-host-bridge is deprecated"); -} - -bool spapr_phb_eeh_available(sPAPRPHBState *sphb) -{ - return vfio_eeh_as_ok(&sphb->iommu_as); -} - -static void spapr_phb_vfio_eeh_reenable(sPAPRPHBState *sphb) -{ - vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_ENABLE); -} - -void spapr_phb_vfio_reset(DeviceState *qdev) -{ - /* - * The PE might be in frozen state. To reenable the EEH - * functionality on it will clean the frozen state, which - * ensures that the contained PCI devices will work properly - * after reboot. - */ - spapr_phb_vfio_eeh_reenable(SPAPR_PCI_HOST_BRIDGE(qdev)); -} - -int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb, - unsigned int addr, int option) -{ - uint32_t op; - int ret; - - switch (option) { - case RTAS_EEH_DISABLE: - 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 || !object_dynamic_cast(OBJECT(pdev), "vfio-pci")) { - return RTAS_OUT_PARAM_ERROR; - } - - op = VFIO_EEH_PE_ENABLE; - break; - } - case RTAS_EEH_THAW_IO: - op = VFIO_EEH_PE_UNFREEZE_IO; - break; - case RTAS_EEH_THAW_DMA: - op = VFIO_EEH_PE_UNFREEZE_DMA; - break; - default: - return RTAS_OUT_PARAM_ERROR; - } - - ret = vfio_eeh_as_op(&sphb->iommu_as, op); - if (ret < 0) { - return RTAS_OUT_HW_ERROR; - } - - return RTAS_OUT_SUCCESS; -} - -int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state) -{ - int ret; - - ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_GET_STATE); - if (ret < 0) { - return RTAS_OUT_PARAM_ERROR; - } - - *state = ret; - return RTAS_OUT_SUCCESS; -} - -static void spapr_phb_vfio_eeh_clear_dev_msix(PCIBus *bus, - PCIDevice *pdev, - void *opaque) -{ - /* Check if the device is VFIO PCI device */ - if (!object_dynamic_cast(OBJECT(pdev), "vfio-pci")) { - return; - } - - /* - * The MSIx table will be cleaned out by reset. We need - * disable it so that it can be reenabled properly. Also, - * the cached MSIx table should be cleared as it's not - * reflecting the contents in hardware. - */ - if (msix_enabled(pdev)) { - uint16_t flags; - - flags = pci_host_config_read_common(pdev, - pdev->msix_cap + PCI_MSIX_FLAGS, - pci_config_size(pdev), 2); - flags &= ~PCI_MSIX_FLAGS_ENABLE; - pci_host_config_write_common(pdev, - pdev->msix_cap + PCI_MSIX_FLAGS, - pci_config_size(pdev), flags, 2); - } - - msix_reset(pdev); -} - -static void spapr_phb_vfio_eeh_clear_bus_msix(PCIBus *bus, void *opaque) -{ - pci_for_each_device(bus, pci_bus_num(bus), - spapr_phb_vfio_eeh_clear_dev_msix, NULL); -} - -static void spapr_phb_vfio_eeh_pre_reset(sPAPRPHBState *sphb) -{ - PCIHostState *phb = PCI_HOST_BRIDGE(sphb); - - pci_for_each_bus(phb->bus, spapr_phb_vfio_eeh_clear_bus_msix, NULL); -} - -int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option) -{ - uint32_t op; - int ret; - - switch (option) { - case RTAS_SLOT_RESET_DEACTIVATE: - op = VFIO_EEH_PE_RESET_DEACTIVATE; - break; - case RTAS_SLOT_RESET_HOT: - spapr_phb_vfio_eeh_pre_reset(sphb); - op = VFIO_EEH_PE_RESET_HOT; - break; - case RTAS_SLOT_RESET_FUNDAMENTAL: - spapr_phb_vfio_eeh_pre_reset(sphb); - op = VFIO_EEH_PE_RESET_FUNDAMENTAL; - break; - default: - return RTAS_OUT_PARAM_ERROR; - } - - ret = vfio_eeh_as_op(&sphb->iommu_as, op); - if (ret < 0) { - return RTAS_OUT_HW_ERROR; - } - - return RTAS_OUT_SUCCESS; -} - -int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb) -{ - int ret; - - ret = vfio_eeh_as_op(&sphb->iommu_as, VFIO_EEH_PE_CONFIGURE); - 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); - - dc->props = spapr_phb_vfio_properties; -} - -static const TypeInfo spapr_phb_vfio_info = { - .name = TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE, - .parent = TYPE_SPAPR_PCI_HOST_BRIDGE, - .instance_size = sizeof(sPAPRPHBVFIOState), - .instance_init = spapr_phb_vfio_instance_init, - .class_init = spapr_phb_vfio_class_init, -}; - -static void spapr_pci_vfio_register_types(void) -{ - type_register_static(&spapr_phb_vfio_info); -} - -type_init(spapr_pci_vfio_register_types) |