diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/arm/virt-acpi-build.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index bef4fabe56..96830f7c4e 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -45,6 +45,7 @@ #include "hw/acpi/generic_event_device.h" #include "hw/acpi/tpm.h" #include "hw/acpi/hmat.h" +#include "hw/arm/smmuv3.h" #include "hw/cxl/cxl.h" #include "hw/pci/pcie_host.h" #include "hw/pci/pci.h" @@ -338,6 +339,67 @@ static int populate_smmuv3_legacy_dev(GArray *sdev_blob) return sdev.rc_smmu_idmaps->len; } +static int smmuv3_dev_idmap_compare(gconstpointer a, gconstpointer b) +{ + AcpiIortSMMUv3Dev *sdev_a = (AcpiIortSMMUv3Dev *)a; + AcpiIortSMMUv3Dev *sdev_b = (AcpiIortSMMUv3Dev *)b; + AcpiIortIdMapping *map_a = &g_array_index(sdev_a->rc_smmu_idmaps, + AcpiIortIdMapping, 0); + AcpiIortIdMapping *map_b = &g_array_index(sdev_b->rc_smmu_idmaps, + AcpiIortIdMapping, 0); + return map_a->input_base - map_b->input_base; +} + +static int iort_smmuv3_devices(Object *obj, void *opaque) +{ + VirtMachineState *vms = VIRT_MACHINE(qdev_get_machine()); + GArray *sdev_blob = opaque; + AcpiIortIdMapping idmap; + PlatformBusDevice *pbus; + AcpiIortSMMUv3Dev sdev; + int min_bus, max_bus; + SysBusDevice *sbdev; + PCIBus *bus; + + if (!object_dynamic_cast(obj, TYPE_ARM_SMMUV3)) { + return 0; + } + + bus = PCI_BUS(object_property_get_link(obj, "primary-bus", &error_abort)); + pbus = PLATFORM_BUS_DEVICE(vms->platform_bus_dev); + sbdev = SYS_BUS_DEVICE(obj); + sdev.base = platform_bus_get_mmio_addr(pbus, sbdev, 0); + sdev.base += vms->memmap[VIRT_PLATFORM_BUS].base; + sdev.irq = platform_bus_get_irqn(pbus, sbdev, 0); + sdev.irq += vms->irqmap[VIRT_PLATFORM_BUS]; + sdev.irq += ARM_SPI_BASE; + + pci_bus_range(bus, &min_bus, &max_bus); + sdev.rc_smmu_idmaps = g_array_new(false, true, sizeof(AcpiIortIdMapping)); + idmap.input_base = min_bus << 8, + idmap.id_count = (max_bus - min_bus + 1) << 8, + g_array_append_val(sdev.rc_smmu_idmaps, idmap); + g_array_append_val(sdev_blob, sdev); + return 0; +} + +/* + * Populate the struct AcpiIortSMMUv3Dev for all SMMUv3 devices and + * return the total number of idmaps. + */ +static int populate_smmuv3_dev(GArray *sdev_blob) +{ + object_child_foreach_recursive(object_get_root(), + iort_smmuv3_devices, sdev_blob); + /* Sort the smmuv3 devices(if any) by smmu idmap input_base */ + g_array_sort(sdev_blob, smmuv3_dev_idmap_compare); + /* + * Since each SMMUv3 dev is assocaited with specific host bridge, + * total number of idmaps equals to total number of smmuv3 devices. + */ + return sdev_blob->len; +} + /* Compute ID ranges (RIDs) from RC that are directed to the ITS Group node */ static void create_rc_its_idmaps(GArray *its_idmaps, GArray *smmuv3_devs) { @@ -401,6 +463,8 @@ build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) if (vms->legacy_smmuv3_present) { rc_smmu_idmaps_len = populate_smmuv3_legacy_dev(smmuv3_devs); + } else { + rc_smmu_idmaps_len = populate_smmuv3_dev(smmuv3_devs); } num_smmus = smmuv3_devs->len; |