/* Support for generating ACPI tables and passing them to Guests * * ARM virt ACPI generation * * Copyright (C) 2008-2010 Kevin O'Connor * Copyright (C) 2006 Fabrice Bellard * Copyright (C) 2013 Red Hat Inc * * Author: Michael S. Tsirkin * * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD. * * Author: Shannon Zhao * * 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 . */ #include "qemu/osdep.h" #include "qapi/error.h" #include "qemu/bitmap.h" #include "trace.h" #include "hw/core/cpu.h" #include "target/arm/cpu.h" #include "hw/acpi/acpi-defs.h" #include "hw/acpi/acpi.h" #include "hw/nvram/fw_cfg.h" #include "hw/acpi/bios-linker-loader.h" #include "hw/acpi/aml-build.h" #include "hw/acpi/utils.h" #include "hw/acpi/pci.h" #include "hw/acpi/memory_hotplug.h" #include "hw/acpi/generic_event_device.h" #include "hw/pci/pcie_host.h" #include "hw/pci/pci.h" #include "hw/arm/virt.h" #include "sysemu/numa.h" #include "sysemu/reset.h" #include "kvm_arm.h" #include "migration/vmstate.h" #define ARM_SPI_BASE 32 static void acpi_dsdt_add_cpus(Aml *scope, int smp_cpus) { uint16_t i; for (i = 0; i < smp_cpus; i++) { Aml *dev = aml_device("C%.03X", i); aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007"))); aml_append(dev, aml_name_decl("_UID", aml_int(i))); aml_append(scope, dev); } } static void acpi_dsdt_add_uart(Aml *scope, const MemMapEntry *uart_memmap, uint32_t uart_irq) { Aml *dev = aml_device("COM0"); aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0011"))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); Aml *crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(uart_memmap->base, uart_memmap->size, AML_READ_WRITE)); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_EXCLUSIVE, &uart_irq, 1)); aml_append(dev, aml_name_decl("_CRS", crs)); aml_append(scope, dev); } static void acpi_dsdt_add_fw_cfg(Aml *scope, const MemMapEntry *fw_cfg_memmap) { Aml *dev = aml_device("FWCF"); aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002"))); /* device present, functioning, decoding, not shown in UI */ aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); aml_append(dev, aml_name_decl("_CCA", aml_int(1))); Aml *crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(fw_cfg_memmap->base, fw_cfg_memmap->size, AML_READ_WRITE)); aml_append(dev, aml_name_decl("_CRS", crs)); aml_append(scope, dev); } static void acpi_dsdt_add_flash(Aml *scope, const MemMapEntry *flash_memmap) { Aml *dev, *crs; hwaddr base = flash_memmap->base; hwaddr size = flash_memmap->size / 2; dev = aml_device("FLS0"); aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); aml_append(dev, aml_name_decl("_CRS", crs)); aml_append(scope, dev); dev = aml_device("FLS1"); aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); aml_append(dev, aml_name_decl("_UID", aml_int(1))); crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(base + size, size, AML_READ_WRITE)); aml_append(dev, aml_name_decl("_CRS", crs)); aml_append(scope, dev); } static void acpi_dsdt_add_virtio(Aml *scope, const MemMapEntry *virtio_mmio_memmap, uint32_t mmio_irq, int num) { hwaddr base = virtio_mmio_memmap->base; hwaddr size = virtio_mmio_memmap->size; int i; for (i = 0; i < num; i++) { uint32_t irq = mmio_irq + i; Aml *dev = aml_device("VR%02u", i); aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005"))); aml_append(dev, aml_name_decl("_UID", aml_int(i))); aml_append(dev, aml_name_decl("_CCA", aml_int(1))); Aml *crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_EXCLUSIVE, &irq, 1)); aml_append(dev, aml_name_decl("_CRS", crs)); aml_append(scope, dev); base += size; } } static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, uint32_t irq, bool use_highmem, bool highmem_ecam) { int ecam_id = VIRT_ECAM_ID(highmem_ecam); Aml *method, *crs, *ifctx, *UUID, *ifctx1, *elsectx, *buf; int i, slot_no; hwaddr base_mmio = memmap[VIRT_PCIE_MMIO].base; hwaddr size_mmio = memmap[VIRT_PCIE_MMIO].size; hwaddr base_pio = memmap[VIRT_PCIE_PIO].base; hwaddr size_pio = memmap[VIRT_PCIE_PIO].size; hwaddr base_ecam = memmap[ecam_id].base; hwaddr size_ecam = memmap[ecam_id].size; int nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; Aml *dev = aml_device("%s", "PCI0"); aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A08"))); aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03"))); aml_append(dev, aml_name_decl("_SEG", aml_int(0))); aml_append(dev, aml_name_decl("_BBN", aml_int(0))); aml_append(dev, aml_name_decl("_UID", aml_string("PCI0"))); aml_append(dev, aml_name_decl("_STR", aml_unicode("PCIe 0 Device"))); aml_append(dev, aml_name_decl("_CCA", aml_int(1))); /* Declare the PCI Routing Table. */ Aml *rt_pkg = aml_varpackage(PCI_SLOT_MAX * PCI_NUM_PINS); for (slot_no = 0; slot_no < PCI_SLOT_MAX; slot_no++) { for (i = 0; i < PCI_NUM_PINS; i++) { int gsi = (i + slot_no) % PCI_NUM_PINS; Aml *pkg = aml_package(4); aml_append(pkg, aml_int((slot_no << 16) | 0xFFFF)); aml_append(pkg, aml_int(i)); aml_append(pkg, aml_name("GSI%d", gsi)); aml_append(pkg, aml_int(0)); aml_append(rt_pkg, pkg); } } aml_append(dev, aml_name_decl("_PRT", rt_pkg)); /* Create GSI link device */ for (i = 0; i < PCI_NUM_PINS; i++) { uint32_t irqs = irq + i; Aml *dev_gsi = aml_device("GSI%d", i); aml_append(dev_gsi, aml_name_decl("_HID", aml_string("PNP0C0F"))); aml_append(dev_gsi, aml_name_decl("_UID", aml_int(i))); crs = aml_resource_template(); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_EXCLUSIVE, &irqs, 1)); aml_append(dev_gsi, aml_name_decl("_PRS", crs)); crs = aml_resource_template(); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_EXCLUSIVE, &irqs, 1)); aml_append(dev_gsi, aml_name_decl("_CRS", crs)); method = aml_method("_SRS", 1, AML_NOTSERIALIZED); aml_append(dev_gsi, method); aml_append(dev, dev_gsi); } method = aml_method("_CBA", 0, AML_NOTSERIALIZED); aml_append(method, aml_return(aml_int(base_ecam))); aml_append(dev, method); method = aml_method("_CRS", 0, AML_NOTSERIALIZED); Aml *rbuf = aml_resource_template(); aml_append(rbuf, aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE, 0x0000, 0x0000, nr_pcie_buses - 1, 0x0000, nr_pcie_buses)); aml_append(rbuf, aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, base_mmio, base_mmio + size_mmio - 1, 0x0000, size_mmio)); aml_append(rbuf, aml_dword_io(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE, AML_ENTIRE_RANGE, 0x0000, 0x0000, size_pio - 1, base_pio, size_pio)); if (use_highmem) { hwaddr base_mmio_high = memmap[VIRT_HIGH_PCIE_MMIO].base; hwaddr size_mmio_high = memmap[VIRT_HIGH_PCIE_MMIO].size; aml_append(rbuf, aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, base_mmio_high, base_mmio_high + size_mmio_high - 1, 0x0000, size_mmio_high)); } aml_append(method, aml_return(rbuf)); aml_append(dev, method); /* Declare an _OSC (OS Control Handoff) method */ aml_append(dev, aml_name_decl("SUPP", aml_int(0))); aml_append(dev, aml_name_decl("CTRL", aml_int(0))); method = aml_method("_OSC", 4, AML_NOTSERIALIZED); aml_append(method, aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1")); /* PCI Firmware Specification 3.0 * 4.5.1. _OSC Interface for PCI Host Bridge Devices * The _OSC interface for a PCI/PCI-X/PCI Express hierarchy is * identified by the Universal Unique IDentifier (UUID) * 33DB4D5B-1FF7-401C-9657-7441C03DD766 */ UUID = aml_touuid("33DB4D5B-1FF7-401C-9657-7441C03DD766"); ifctx = aml_if(aml_equal(aml_arg(0), UUID)); aml_append(ifctx, aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2")); aml_append(ifctx, aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3")); aml_append(ifctx, aml_store(aml_name("CDW2"), aml_name("SUPP"))); aml_append(ifctx, aml_store(aml_name("CDW3"), aml_name("CTRL"))); /* * Allow OS control for all 5 features: * PCIeHotplug SHPCHotplug PME AER PCIeCapability. */ aml_append(ifctx, aml_and(aml_name("CTRL"), aml_int(0x1F), aml_name("CTRL"))); ifctx1 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(0x1)))); aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x08), aml_name("CDW1"))); aml_append(ifctx, ifctx1); ifctx1 = aml_if(aml_lnot(aml_equal(aml_name("CDW3"), aml_name("CTRL")))); aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x10), aml_name("CDW1"))); aml_append(ifctx, ifctx1); aml_append(ifctx, aml_store(aml_name("CTRL"), aml_name("CDW3"))); aml_append(ifctx, aml_return(aml_arg(3))); aml_append(method, ifctx); elsectx = aml_else(); aml_append(elsectx, aml_or(aml_name("CDW1"), aml_int(4), aml_name("CDW1"))); aml_append(elsectx, aml_return(aml_arg(3))); aml_append(method, elsectx); aml_append(dev, method); method = aml_method("_DSM", 4, AML_NOTSERIALIZED); /* PCI Firmware Specification 3.0 * 4.6.1. _DSM for PCI Express Slot Information * The UUID in _DSM in this context is * {E5C937D0-3553-4D7A-9117-EA4D19C3434D} */ UUID = aml_touuid("E5C937D0-3553-4D7A-9117-EA4D19C3434D"); ifctx = aml_if(aml_equal(aml_arg(0), UUID)); ifctx1 = aml_if(aml_equal(aml_arg(2), aml_int(0))); uint8_t byte_list[1] = {1}; buf = aml_buffer(1, byte_list); aml_append(ifctx1, aml_return(buf)); aml_append(ifctx, ifctx1); aml_append(method, ifctx); byte_list[0] = 0; buf = aml_buffer(1, byte_list); aml_append(method, aml_return(buf)); aml_append(dev, method); Aml *dev_res0 = aml_device("%s", "RES0"); aml_append(dev_res0, aml_name_decl("_HID", aml_string("PNP0C02"))); crs = aml_resource_template(); aml_append(crs, aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, base_ecam, base_ecam + size_ecam - 1, 0x0000, size_ecam)); aml_append(dev_res0, aml_name_decl("_CRS", crs)); aml_append(dev, dev_res0); aml_append(scope, dev); } static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, uint32_t gpio_irq) { Aml *dev = aml_device("GPO0"); aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0061"))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); Aml *crs = aml_resource_template(); aml_append(crs, aml_memory32_fixed(gpio_memmap->base, gpio_memmap->size, AML_READ_WRITE)); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, AML_EXCLUSIVE, &gpio_irq, 1)); aml_append(dev, aml_name_decl("_CRS", crs)); Aml *aei = aml_resource_template(); /* Pin 3 for power button */ const uint32_t pin_list[1] = {3}; aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH, AML_EXCLUSIVE, AML_PULL_UP, 0, pin_list, 1, "GPO0", NULL, 0)); aml_append(dev, aml_name_decl("_AEI", aei)); /* _E03 is handle for power button */ Aml *method = aml_method("_E03", 0, AML_NOTSERIALIZED); aml_append(method, aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE), aml_int(0x80))); aml_append(dev, method); aml_append(scope, dev); } static void acpi_dsdt_add_power_button(Aml *scope) { Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE); aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C"))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); aml_append(scope, dev); } static void build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { int nb_nodes, iort_start = table_data->len; AcpiIortIdMapping *idmap; AcpiIortItsGroup *its; AcpiIortTable *iort; AcpiIortSmmu3 *smmu; size_t node_size, iort_node_offset, iort_length, smmu_offset = 0; AcpiIortRC *rc; iort = acpi_data_push(table_data, sizeof(*iort)); if (vms->iommu == VIRT_IOMMU_SMMUV3) { nb_nodes = 3; /* RC, ITS, SMMUv3 */ } else { nb_nodes = 2; /* RC, ITS */ } iort_length = sizeof(*iort); iort->node_count = cpu_to_le32(nb_nodes); /* * Use a copy in case table_data->data moves during acpi_data_push * operations. */ iort_node_offset = sizeof(*iort); iort->node_offset = cpu_to_le32(iort_node_offset); /* ITS group node */ node_size = sizeof(*its) + sizeof(uint32_t); iort_length += node_size; its = acpi_data_push(table_data, node_size); its->type = ACPI_IORT_NODE_ITS_GROUP; its->length = cpu_to_le16(node_size); its->its_count = cpu_to_le32(1); its->identifiers[0] = 0; /* MADT translation_id */ if (vms->iommu == VIRT_IOMMU_SMMUV3) { int irq = vms->irqmap[VIRT_SMMU] + ARM_SPI_BASE; /* SMMUv3 node */ smmu_offset = iort_node_offset + node_size; node_size = sizeof(*smmu) + sizeof(*idmap); iort_length += node_size; smmu = acpi_data_push(table_data, node_size); smmu->type = ACPI_IORT_NODE_SMMU_V3; smmu->length = cpu_to_le16(node_size); smmu->mapping_count = cpu_to_le32(1); smmu->mapping_offset = cpu_to_le32(sizeof(*smmu)); smmu->base_address = cpu_to_le64(vms->memmap[VIRT_SMMU].base); smmu->flags = cpu_to_le32(ACPI_IORT_SMMU_V3_COHACC_OVERRIDE); smmu->event_gsiv = cpu_to_le32(irq); smmu->pri_gsiv = cpu_to_le32(irq + 1); smmu->gerr_gsiv = cpu_to_le32(irq + 2); smmu->sync_gsiv = cpu_to_le32(irq + 3); /* Identity RID mapping covering the whole input RID range */ idmap = &smmu->id_mapping_array[0]; idmap->input_base = 0; idmap->id_count = cpu_to_le32(0xFFFF); idmap->output_base = 0; /* output IORT node is the ITS group node (the first node) */ idmap->output_reference = cpu_to_le32(iort_node_offset); } /* Root Complex Node */ node_size = sizeof(*rc) + sizeof(*idmap); iort_length += node_size; rc = acpi_data_push(table_data, node_size); rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX; rc->length = cpu_to_le16(node_size); rc->mapping_count = cpu_to_le32(1); rc->mapping_offset = cpu_to_le32(sizeof(*rc)); /* fully coherent device */ rc->memory_properties.cache_coherency = cpu_to_le32(1); rc->memory_properties.memory_flags = 0x3; /* CCA = CPM = DCAS = 1 */ rc->pci_segment_number = 0; /* MCFG pci_segment */ /* Identity RID mapping covering the whole input RID range */ idmap = &rc->id_mapping_array[0]; idmap->input_base = 0; idmap->id_count = cpu_to_le32(0xFFFF); idmap->output_base = 0; if (vms->iommu == VIRT_IOMMU_SMMUV3) { /* output IORT node is the smmuv3 node */ idmap->output_reference = cpu_to_le32(smmu_offset); } else { /* output IORT node is the ITS group node (the first node) */ idmap->output_reference = cpu_to_le32(iort_node_offset); } /* * Update the pointer address in case table_data->data moves during above * acpi_data_push operations. */ iort = (AcpiIortTable *)(table_data->data + iort_start); iort->length = cpu_to_le32(iort_length); build_header(linker, table_data, (void *)(table_data->data + iort_start), "IORT", table_data->len - iort_start, 0, NULL, NULL); } static void build_spcr(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { AcpiSerialPortConsoleRedirection *spcr; const MemMapEntry *uart_memmap = &vms->memmap[VIRT_UART]; int irq = vms->irqmap[VIRT_UART] + ARM_SPI_BASE; int spcr_start = table_data->len; spcr = acpi_data_push(table_data, sizeof(*spcr)); spcr->interface_type = 0x3; /* ARM PL011 UART */ spcr->base_address.space_id = AML_SYSTEM_MEMORY; spcr->base_address.bit_width = 8; spcr->base_address.bit_offset = 0; spcr->base_address.access_width = 1; spcr->base_address.address = cpu_to_le64(uart_memmap->base); spcr->interrupt_types = (1 << 3); /* Bit[3] ARMH GIC interrupt */ spcr->gsi = cpu_to_le32(irq); /* Global System Interrupt */ spcr->baud = 3; /* Baud Rate: 3 = 9600 */ spcr->parity = 0; /* No Parity */ spcr->stopbits = 1; /* 1 Stop bit */ spcr->flowctrl = (1 << 1); /* Bit[1] = RTS/CTS hardware flow control */ spcr->term_type = 0; /* Terminal Type: 0 = VT100 */ spcr->pci_device_id = 0xffff; /* PCI Device ID: not a PCI device */ spcr->pci_vendor_id = 0xffff; /* PCI Vendor ID: not a PCI device */ build_header(linker, table_data, (void *)(table_data->data + spcr_start), "SPCR", table_data->len - spcr_start, 2, NULL, NULL); } static void build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { AcpiSystemResourceAffinityTable *srat; AcpiSratProcessorGiccAffinity *core; AcpiSratMemoryAffinity *numamem; int i, srat_start; uint64_t mem_base; MachineClass *mc = MACHINE_GET_CLASS(vms); MachineState *ms = MACHINE(vms); const CPUArchIdList *cpu_list = mc->possible_cpu_arch_ids(ms); srat_start = table_data->len; srat = acpi_data_push(table_data, sizeof(*srat)); srat->reserved1 = cpu_to_le32(1); for (i = 0; i < cpu_list->len; ++i) { core = acpi_data_push(table_data, sizeof(*core)); core->type = ACPI_SRAT_PROCESSOR_GICC; core->length = sizeof(*core); core->proximity = cpu_to_le32(cpu_list->cpus[i].props.node_id); core->acpi_processor_uid = cpu_to_le32(i); core->flags = cpu_to_le32(1); } mem_base = vms->memmap[VIRT_MEM].base; for (i = 0; i < ms->numa_state->num_nodes; ++i) { if (ms->numa_state->nodes[i].node_mem > 0) { numamem = acpi_data_push(table_data, sizeof(*numamem)); build_srat_memory(numamem, mem_base, ms->numa_state->nodes[i].node_mem, i, MEM_AFFINITY_ENABLED); mem_base += ms->numa_state->nodes[i].node_mem; } } if (ms->device_memory) { numamem = acpi_data_push(table_data, sizeof *numamem); build_srat_memory(numamem, ms->device_memory->base, memory_region_size(&ms->device_memory->mr), ms->numa_state->num_nodes - 1, MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED); } build_header(linker, table_data, (void *)(table_data->data + srat_start), "SRAT", table_data->len - srat_start, 3, NULL, NULL); } /* GTDT */ static void build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); int gtdt_start = table_data->len; AcpiGenericTimerTable *gtdt; uint32_t irqflags; if (vmc->claim_edge_triggered_timers) { irqflags = ACPI_GTDT_INTERRUPT_MODE_EDGE; } else { irqflags = ACPI_GTDT_INTERRUPT_MODE_LEVEL; } gtdt = acpi_data_push(table_data, sizeof *gtdt); /* The interrupt values are the same with the device tree when adding 16 */ gtdt->secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_S_EL1_IRQ + 16); gtdt->secure_el1_flags = cpu_to_le32(irqflags); gtdt->non_secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL1_IRQ + 16); gtdt->non_secure_el1_flags = cpu_to_le32(irqflags | ACPI_GTDT_CAP_ALWAYS_ON); gtdt->virtual_timer_interrupt = cpu_to_le32(ARCH_TIMER_VIRT_IRQ + 16); gtdt->virtual_timer_flags = cpu_to_le32(irqflags); gtdt->non_secure_el2_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL2_IRQ + 16); gtdt->non_secure_el2_flags = cpu_to_le32(irqflags); build_header(linker, table_data, (void *)(table_data->data + gtdt_start), "GTDT", table_data->len - gtdt_start, 2, NULL, NULL); } /* MADT */ static void build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); int madt_start = table_data->len; const MemMapEntry *memmap = vms->memmap; const int *irqmap = vms->irqmap; AcpiMultipleApicTable *madt; AcpiMadtGenericDistributor *gicd; AcpiMadtGenericMsiFrame *gic_msi; int i; madt = acpi_data_push(table_data, sizeof *madt); gicd = acpi_data_push(table_data, sizeof *gicd); gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR; gicd->length = sizeof(*gicd); gicd->base_address = cpu_to_le64(memmap[VIRT_GIC_DIST].base); gicd->version = vms->gic_version; for (i = 0; i < vms->smp_cpus; i++) { AcpiMadtGenericCpuInterface *gicc = acpi_data_push(table_data, sizeof(*gicc)); ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i)); gicc->type = ACPI_APIC_GENERIC_CPU_INTERFACE; gicc->length = sizeof(*gicc); if (vms->gic_version == 2) { gicc->base_address = cpu_to_le64(memmap[VIRT_GIC_CPU].base); gicc->gich_base_address = cpu_to_le64(memmap[VIRT_GIC_HYP].base); gicc->gicv_base_address = cpu_to_le64(memmap[VIRT_GIC_VCPU].base); } gicc->cpu_interface_number = cpu_to_le32(i); gicc->arm_mpidr = cpu_to_le64(armcpu->mp_affinity); gicc->uid = cpu_to_le32(i); gicc->flags = cpu_to_le32(ACPI_MADT_GICC_ENABLED); if (arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { gicc->performance_interrupt = cpu_to_le32(PPI(VIRTUAL_PMU_IRQ)); } if (vms->virt) { gicc->vgic_interrupt = cpu_to_le32(PPI(ARCH_GIC_MAINT_IRQ)); } } if (vms->gic_version == 3) { AcpiMadtGenericTranslator *gic_its; int nb_redist_regions = virt_gicv3_redist_region_count(vms); AcpiMadtGenericRedistributor *gicr = acpi_data_push(table_data, sizeof *gicr); gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; gicr->length = sizeof(*gicr); gicr->base_address = cpu_to_le64(memmap[VIRT_GIC_REDIST].base); gicr->range_length = cpu_to_le32(memmap[VIRT_GIC_REDIST].size); if (nb_redist_regions == 2) { gicr = acpi_data_push(table_data, sizeof(*gicr)); gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; gicr->length = sizeof(*gicr); gicr->base_address = cpu_to_le64(memmap[VIRT_HIGH_GIC_REDIST2].base); gicr->range_length = cpu_to_le32(memmap[VIRT_HIGH_GIC_REDIST2].size); } if (its_class_name() && !vmc->no_its) { gic_its = acpi_data_push(table_data, sizeof *gic_its); gic_its->type = ACPI_APIC_GENERIC_TRANSLATOR; gic_its->length = sizeof(*gic_its); gic_its->translation_id = 0; gic_its->base_address = cpu_to_le64(memmap[VIRT_GIC_ITS].base); } } else { gic_msi = acpi_data_push(table_data, sizeof *gic_msi); gic_msi->type = ACPI_APIC_GENERIC_MSI_FRAME; gic_msi->length = sizeof(*gic_msi); gic_msi->gic_msi_frame_id = 0; gic_msi->base_address = cpu_to_le64(memmap[VIRT_GIC_V2M].base); gic_msi->flags = cpu_to_le32(1); gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS); gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE); } build_header(linker, table_data, (void *)(table_data->data + madt_start), "APIC", table_data->len - madt_start, 3, NULL, NULL); } /* FADT */ static void build_fadt_rev5(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms, unsigned dsdt_tbl_offset) { /* ACPI v5.1 */ AcpiFadtData fadt = { .rev = 5, .minor_ver = 1, .flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI, .xdsdt_tbl_offset = &dsdt_tbl_offset, }; switch (vms->psci_conduit) { case QEMU_PSCI_CONDUIT_DISABLED: fadt.arm_boot_arch = 0; break; case QEMU_PSCI_CONDUIT_HVC: fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT | ACPI_FADT_ARM_PSCI_USE_HVC; break; case QEMU_PSCI_CONDUIT_SMC: fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT; break; default: g_assert_not_reached(); } build_fadt(table_data, linker, &fadt, NULL, NULL); } /* DSDT */ static void build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) { Aml *scope, *dsdt; MachineState *ms = MACHINE(vms); const MemMapEntry *memmap = vms->memmap; const int *irqmap = vms->irqmap; dsdt = init_aml_allocator(); /* Reserve space for header */ acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader)); /* When booting the VM with UEFI, UEFI takes ownership of the RTC hardware. * While UEFI can use libfdt to disable the RTC device node in the DTB that * it passes to the OS, it cannot modify AML. Therefore, we won't generate * the RTC ACPI device at all when using UEFI. */ scope = aml_scope("\\_SB"); acpi_dsdt_add_cpus(scope, vms->smp_cpus); acpi_dsdt_add_uart(scope, &memmap[VIRT_UART], (irqmap[VIRT_UART] + ARM_SPI_BASE)); acpi_dsdt_add_flash(scope, &memmap[VIRT_FLASH]); acpi_dsdt_add_fw_cfg(scope, &memmap[VIRT_FW_CFG]); acpi_dsdt_add_virtio(scope, &memmap[VIRT_MMIO], (irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS); acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE), vms->highmem, vms->highmem_ecam); if (vms->acpi_dev) { build_ged_aml(scope, "\\_SB."GED_DEVICE, HOTPLUG_HANDLER(vms->acpi_dev), irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, AML_SYSTEM_MEMORY, memmap[VIRT_ACPI_GED].base); } else { acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); } if (vms->acpi_dev) { uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev), "ged-event", &error_abort); if (event & ACPI_GED_MEM_HOTPLUG_EVT) { build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, AML_SYSTEM_MEMORY, memmap[VIRT_PCDIMM_ACPI].base); } } acpi_dsdt_add_power_button(scope); aml_append(dsdt, scope); /* copy AML table into ACPI tables blob and patch header there */ g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len); build_header(linker, table_data, (void *)(table_data->data + table_data->len - dsdt->buf->len), "DSDT", dsdt->buf->len, 2, NULL, NULL); free_aml_allocator(); } typedef struct AcpiBuildState { /* Copy of table in RAM (for patching). */ MemoryRegion *table_mr; MemoryRegion *rsdp_mr; MemoryRegion *linker_mr; /* Is table patched? */ bool patched; } AcpiBuildState; static void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) { VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); GArray *table_offsets; unsigned dsdt, xsdt; GArray *tables_blob = tables->table_data; MachineState *ms = MACHINE(vms); table_offsets = g_array_new(false, true /* clear */, sizeof(uint32_t)); bios_linker_loader_alloc(tables->linker, ACPI_BUILD_TABLE_FILE, tables_blob, 64, false /* high memory */); /* DSDT is pointed to by FADT */ dsdt = tables_blob->len; build_dsdt(tables_blob, tables->linker, vms); /* FADT MADT GTDT MCFG SPCR pointed to by RSDT */ acpi_add_table(table_offsets, tables_blob); build_fadt_rev5(tables_blob, tables->linker, vms, dsdt); acpi_add_table(table_offsets, tables_blob); build_madt(tables_blob, tables->linker, vms); acpi_add_table(table_offsets, tables_blob); build_gtdt(tables_blob, tables->linker, vms); acpi_add_table(table_offsets, tables_blob); { AcpiMcfgInfo mcfg = { .base = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].base, .size = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].size, }; build_mcfg(tables_blob, tables->linker, &mcfg); } acpi_add_table(table_offsets, tables_blob); build_spcr(tables_blob, tables->linker, vms); if (ms->numa_state->num_nodes > 0) { acpi_add_table(table_offsets, tables_blob); build_srat(tables_blob, tables->linker, vms); if (ms->numa_state->have_numa_distance) { acpi_add_table(table_offsets, tables_blob); build_slit(tables_blob, tables->linker, ms); } } if (its_class_name() && !vmc->no_its) { acpi_add_table(table_offsets, tables_blob); build_iort(tables_blob, tables->linker, vms); } /* XSDT is pointed to by RSDP */ xsdt = tables_blob->len; build_xsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); /* RSDP is in FSEG memory, so allocate it separately */ { AcpiRsdpData rsdp_data = { .revision = 2, .oem_id = ACPI_BUILD_APPNAME6, .xsdt_tbl_offset = &xsdt, .rsdt_tbl_offset = NULL, }; build_rsdp(tables->rsdp, tables->linker, &rsdp_data); } /* Cleanup memory that's no longer used. */ g_array_free(table_offsets, true); } static void acpi_ram_update(MemoryRegion *mr, GArray *data) { uint32_t size = acpi_data_len(data); /* Make sure RAM size is correct - in case it got changed * e.g. by migration */ memory_region_ram_resize(mr, size, &error_abort); memcpy(memory_region_get_ram_ptr(mr), data->data, size); memory_region_set_dirty(mr, 0, size); } static void virt_acpi_build_update(void *build_opaque) { AcpiBuildState *build_state = build_opaque; AcpiBuildTables tables; /* No state to update or already patched? Nothing to do. */ if (!build_state || build_state->patched) { return; } build_state->patched = true; acpi_build_tables_init(&tables); virt_acpi_build(VIRT_MACHINE(qdev_get_machine()), &tables); acpi_ram_update(build_state->table_mr, tables.table_data); acpi_ram_update(build_state->rsdp_mr, tables.rsdp); acpi_ram_update(build_state->linker_mr, tables.linker->cmd_blob); acpi_build_tables_cleanup(&tables, true); } static void virt_acpi_build_reset(void *build_opaque) { AcpiBuildState *build_state = build_opaque; build_state->patched = false; } static const VMStateDescription vmstate_virt_acpi_build = { .name = "virt_acpi_build", .version_id = 1, .minimum_version_id = 1, .fields = (VMStateField[]) { VMSTATE_BOOL(patched, AcpiBuildState), VMSTATE_END_OF_LIST() }, }; void virt_acpi_setup(VirtMachineState *vms) { AcpiBuildTables tables; AcpiBuildState *build_state; if (!vms->fw_cfg) { trace_virt_acpi_setup(); return; } if (!virt_is_acpi_enabled(vms)) { trace_virt_acpi_setup(); return; } build_state = g_malloc0(sizeof *build_state); acpi_build_tables_init(&tables); virt_acpi_build(vms, &tables); /* Now expose it all to Guest */ build_state->table_mr = acpi_add_rom_blob(virt_acpi_build_update, build_state, tables.table_data, ACPI_BUILD_TABLE_FILE, ACPI_BUILD_TABLE_MAX_SIZE); assert(build_state->table_mr != NULL); build_state->linker_mr = acpi_add_rom_blob(virt_acpi_build_update, build_state, tables.linker->cmd_blob, ACPI_BUILD_LOADER_FILE, 0); fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE, tables.tcpalog->data, acpi_data_len(tables.tcpalog)); build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update, build_state, tables.rsdp, ACPI_BUILD_RSDP_FILE, 0); qemu_register_reset(virt_acpi_build_reset, build_state); virt_acpi_build_reset(build_state); vmstate_register(NULL, 0, &vmstate_virt_acpi_build, build_state); /* Cleanup tables but don't free the memory: we track it * in build_state. */ acpi_build_tables_cleanup(&tables, false); }