123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825 |
- /*
- * Support for generating ACPI tables and passing them to Guests
- *
- * RISC-V virt ACPI generation
- *
- * Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
- * Copyright (C) 2006 Fabrice Bellard
- * Copyright (C) 2013 Red Hat Inc
- * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD.
- * Copyright (C) 2021-2023 Ventana Micro Systems Inc
- *
- * 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 "hw/acpi/acpi-defs.h"
- #include "hw/acpi/acpi.h"
- #include "hw/acpi/aml-build.h"
- #include "hw/acpi/pci.h"
- #include "hw/acpi/utils.h"
- #include "hw/intc/riscv_aclint.h"
- #include "hw/nvram/fw_cfg_acpi.h"
- #include "hw/pci-host/gpex.h"
- #include "hw/riscv/virt.h"
- #include "hw/riscv/numa.h"
- #include "hw/virtio/virtio-acpi.h"
- #include "migration/vmstate.h"
- #include "qapi/error.h"
- #include "qemu/error-report.h"
- #include "system/reset.h"
- #define ACPI_BUILD_TABLE_SIZE 0x20000
- #define ACPI_BUILD_INTC_ID(socket, index) ((socket << 24) | (index))
- 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 acpi_align_size(GArray *blob, unsigned align)
- {
- /*
- * Align size to multiple of given size. This reduces the chance
- * we need to change size in the future (breaking cross version migration).
- */
- g_array_set_size(blob, ROUND_UP(acpi_data_len(blob), align));
- }
- static void riscv_acpi_madt_add_rintc(uint32_t uid,
- const CPUArchIdList *arch_ids,
- GArray *entry,
- RISCVVirtState *s)
- {
- uint8_t guest_index_bits = imsic_num_bits(s->aia_guests + 1);
- uint64_t hart_id = arch_ids->cpus[uid].arch_id;
- uint32_t imsic_size, local_cpu_id, socket_id;
- uint64_t imsic_socket_addr, imsic_addr;
- MachineState *ms = MACHINE(s);
- socket_id = arch_ids->cpus[uid].props.node_id;
- local_cpu_id = (arch_ids->cpus[uid].arch_id -
- riscv_socket_first_hartid(ms, socket_id)) %
- riscv_socket_hart_count(ms, socket_id);
- imsic_socket_addr = s->memmap[VIRT_IMSIC_S].base +
- (socket_id * VIRT_IMSIC_GROUP_MAX_SIZE);
- imsic_size = IMSIC_HART_SIZE(guest_index_bits);
- imsic_addr = imsic_socket_addr + local_cpu_id * imsic_size;
- build_append_int_noprefix(entry, 0x18, 1); /* Type */
- build_append_int_noprefix(entry, 36, 1); /* Length */
- build_append_int_noprefix(entry, 1, 1); /* Version */
- build_append_int_noprefix(entry, 0, 1); /* Reserved */
- build_append_int_noprefix(entry, 0x1, 4); /* Flags */
- build_append_int_noprefix(entry, hart_id, 8); /* Hart ID */
- build_append_int_noprefix(entry, uid, 4); /* ACPI Processor UID */
- /* External Interrupt Controller ID */
- if (s->aia_type == VIRT_AIA_TYPE_APLIC) {
- build_append_int_noprefix(entry,
- ACPI_BUILD_INTC_ID(
- arch_ids->cpus[uid].props.node_id,
- local_cpu_id),
- 4);
- } else if (s->aia_type == VIRT_AIA_TYPE_NONE) {
- build_append_int_noprefix(entry,
- ACPI_BUILD_INTC_ID(
- arch_ids->cpus[uid].props.node_id,
- 2 * local_cpu_id + 1),
- 4);
- } else {
- build_append_int_noprefix(entry, 0, 4);
- }
- if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) {
- /* IMSIC Base address */
- build_append_int_noprefix(entry, imsic_addr, 8);
- /* IMSIC Size */
- build_append_int_noprefix(entry, imsic_size, 4);
- } else {
- build_append_int_noprefix(entry, 0, 8);
- build_append_int_noprefix(entry, 0, 4);
- }
- }
- static void acpi_dsdt_add_cpus(Aml *scope, RISCVVirtState *s)
- {
- MachineClass *mc = MACHINE_GET_CLASS(s);
- MachineState *ms = MACHINE(s);
- const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(ms);
- for (int i = 0; i < arch_ids->len; i++) {
- Aml *dev;
- GArray *madt_buf = g_array_new(0, 1, 1);
- 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(arch_ids->cpus[i].arch_id)));
- /* build _MAT object */
- riscv_acpi_madt_add_rintc(i, arch_ids, madt_buf, s);
- aml_append(dev, aml_name_decl("_MAT",
- aml_buffer(madt_buf->len,
- (uint8_t *)madt_buf->data)));
- g_array_free(madt_buf, true);
- aml_append(scope, dev);
- }
- }
- static void acpi_dsdt_add_plic_aplic(Aml *scope, uint8_t socket_count,
- uint64_t mmio_base, uint64_t mmio_size,
- const char *hid)
- {
- uint64_t plic_aplic_addr;
- uint32_t gsi_base;
- uint8_t socket;
- for (socket = 0; socket < socket_count; socket++) {
- plic_aplic_addr = mmio_base + mmio_size * socket;
- gsi_base = VIRT_IRQCHIP_NUM_SOURCES * socket;
- Aml *dev = aml_device("IC%.02X", socket);
- aml_append(dev, aml_name_decl("_HID", aml_string("%s", hid)));
- aml_append(dev, aml_name_decl("_UID", aml_int(socket)));
- aml_append(dev, aml_name_decl("_GSB", aml_int(gsi_base)));
- Aml *crs = aml_resource_template();
- aml_append(crs, aml_memory32_fixed(plic_aplic_addr, mmio_size,
- AML_READ_WRITE));
- aml_append(dev, aml_name_decl("_CRS", crs));
- 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("RSCV0003")));
- 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 *pkg = aml_package(2);
- aml_append(pkg, aml_string("clock-frequency"));
- aml_append(pkg, aml_int(3686400));
- Aml *UUID = aml_touuid("DAFFD814-6EBA-4D8C-8A91-BC9BBF4AA301");
- Aml *pkg1 = aml_package(1);
- aml_append(pkg1, pkg);
- Aml *package = aml_package(2);
- aml_append(package, UUID);
- aml_append(package, pkg1);
- aml_append(dev, aml_name_decl("_DSD", package));
- aml_append(scope, dev);
- }
- /*
- * Serial Port Console Redirection Table (SPCR)
- * Rev: 1.10
- */
- static void
- spcr_setup(GArray *table_data, BIOSLinker *linker, RISCVVirtState *s)
- {
- const char name[] = ".";
- AcpiSpcrData serial = {
- .interface_type = 0x12, /* 16550 compatible */
- .base_addr.id = AML_AS_SYSTEM_MEMORY,
- .base_addr.width = 32,
- .base_addr.offset = 0,
- .base_addr.size = 1,
- .base_addr.addr = s->memmap[VIRT_UART0].base,
- .interrupt_type = (1 << 4),/* Bit[4] RISC-V PLIC/APLIC */
- .pc_interrupt = 0,
- .interrupt = UART0_IRQ,
- .baud_rate = 7, /* 15200 */
- .parity = 0,
- .stop_bits = 1,
- .flow_control = 0,
- .terminal_type = 3, /* ANSI */
- .language = 0, /* Language */
- .pci_device_id = 0xffff, /* not a PCI device*/
- .pci_vendor_id = 0xffff, /* not a PCI device*/
- .pci_bus = 0,
- .pci_device = 0,
- .pci_function = 0,
- .pci_flags = 0,
- .pci_segment = 0,
- .uart_clk_freq = 0,
- .precise_baudrate = 0,
- .namespace_string_length = sizeof(name),
- .namespace_string_offset = 88,
- };
- build_spcr(table_data, linker, &serial, 4, s->oem_id, s->oem_table_id,
- name);
- }
- /* RHCT Node[N] starts at offset 56 */
- #define RHCT_NODE_ARRAY_OFFSET 56
- /*
- * ACPI spec, Revision 6.5+
- * 5.2.36 RISC-V Hart Capabilities Table (RHCT)
- * REF: https://github.com/riscv-non-isa/riscv-acpi/issues/16
- * https://drive.google.com/file/d/1nP3nFiH4jkPMp6COOxP6123DCZKR-tia/view
- * https://drive.google.com/file/d/1sKbOa8m1UZw1JkquZYe3F1zQBN1xXsaf/view
- */
- static void build_rhct(GArray *table_data,
- BIOSLinker *linker,
- RISCVVirtState *s)
- {
- MachineClass *mc = MACHINE_GET_CLASS(s);
- MachineState *ms = MACHINE(s);
- const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(ms);
- size_t len, aligned_len;
- uint32_t isa_offset, num_rhct_nodes, cmo_offset = 0;
- RISCVCPU *cpu = &s->soc[0].harts[0];
- uint32_t mmu_offset = 0;
- uint8_t satp_mode_max;
- g_autofree char *isa = NULL;
- AcpiTable table = { .sig = "RHCT", .rev = 1, .oem_id = s->oem_id,
- .oem_table_id = s->oem_table_id };
- acpi_table_begin(&table, table_data);
- build_append_int_noprefix(table_data, 0x0, 4); /* Reserved */
- /* Time Base Frequency */
- build_append_int_noprefix(table_data,
- RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, 8);
- /* ISA + N hart info */
- num_rhct_nodes = 1 + ms->smp.cpus;
- if (cpu->cfg.ext_zicbom || cpu->cfg.ext_zicboz) {
- num_rhct_nodes++;
- }
- if (cpu->cfg.satp_mode.supported != 0) {
- num_rhct_nodes++;
- }
- /* Number of RHCT nodes*/
- build_append_int_noprefix(table_data, num_rhct_nodes, 4);
- /* Offset to the RHCT node array */
- build_append_int_noprefix(table_data, RHCT_NODE_ARRAY_OFFSET, 4);
- /* ISA String Node */
- isa_offset = table_data->len - table.table_offset;
- build_append_int_noprefix(table_data, 0, 2); /* Type 0 */
- isa = riscv_isa_string(cpu);
- len = 8 + strlen(isa) + 1;
- aligned_len = (len % 2) ? (len + 1) : len;
- build_append_int_noprefix(table_data, aligned_len, 2); /* Length */
- build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
- /* ISA string length including NUL */
- build_append_int_noprefix(table_data, strlen(isa) + 1, 2);
- g_array_append_vals(table_data, isa, strlen(isa) + 1); /* ISA string */
- if (aligned_len != len) {
- build_append_int_noprefix(table_data, 0x0, 1); /* Optional Padding */
- }
- /* CMO node */
- if (cpu->cfg.ext_zicbom || cpu->cfg.ext_zicboz) {
- cmo_offset = table_data->len - table.table_offset;
- build_append_int_noprefix(table_data, 1, 2); /* Type */
- build_append_int_noprefix(table_data, 10, 2); /* Length */
- build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
- build_append_int_noprefix(table_data, 0, 1); /* Reserved */
- /* CBOM block size */
- if (cpu->cfg.cbom_blocksize) {
- build_append_int_noprefix(table_data,
- __builtin_ctz(cpu->cfg.cbom_blocksize),
- 1);
- } else {
- build_append_int_noprefix(table_data, 0, 1);
- }
- /* CBOP block size */
- build_append_int_noprefix(table_data, 0, 1);
- /* CBOZ block size */
- if (cpu->cfg.cboz_blocksize) {
- build_append_int_noprefix(table_data,
- __builtin_ctz(cpu->cfg.cboz_blocksize),
- 1);
- } else {
- build_append_int_noprefix(table_data, 0, 1);
- }
- }
- /* MMU node structure */
- if (cpu->cfg.satp_mode.supported != 0) {
- satp_mode_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
- mmu_offset = table_data->len - table.table_offset;
- build_append_int_noprefix(table_data, 2, 2); /* Type */
- build_append_int_noprefix(table_data, 8, 2); /* Length */
- build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
- build_append_int_noprefix(table_data, 0, 1); /* Reserved */
- /* MMU Type */
- if (satp_mode_max == VM_1_10_SV57) {
- build_append_int_noprefix(table_data, 2, 1); /* Sv57 */
- } else if (satp_mode_max == VM_1_10_SV48) {
- build_append_int_noprefix(table_data, 1, 1); /* Sv48 */
- } else if (satp_mode_max == VM_1_10_SV39) {
- build_append_int_noprefix(table_data, 0, 1); /* Sv39 */
- } else {
- assert(1);
- }
- }
- /* Hart Info Node */
- for (int i = 0; i < arch_ids->len; i++) {
- len = 16;
- int num_offsets = 1;
- build_append_int_noprefix(table_data, 0xFFFF, 2); /* Type */
- /* Length */
- if (cmo_offset) {
- len += 4;
- num_offsets++;
- }
- if (mmu_offset) {
- len += 4;
- num_offsets++;
- }
- build_append_int_noprefix(table_data, len, 2);
- build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
- /* Number of offsets */
- build_append_int_noprefix(table_data, num_offsets, 2);
- build_append_int_noprefix(table_data, i, 4); /* ACPI Processor UID */
- /* Offsets */
- build_append_int_noprefix(table_data, isa_offset, 4);
- if (cmo_offset) {
- build_append_int_noprefix(table_data, cmo_offset, 4);
- }
- if (mmu_offset) {
- build_append_int_noprefix(table_data, mmu_offset, 4);
- }
- }
- acpi_table_end(linker, &table);
- }
- /* FADT */
- static void build_fadt_rev6(GArray *table_data,
- BIOSLinker *linker,
- RISCVVirtState *s,
- unsigned dsdt_tbl_offset)
- {
- AcpiFadtData fadt = {
- .rev = 6,
- .minor_ver = 5,
- .flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI,
- .xdsdt_tbl_offset = &dsdt_tbl_offset,
- };
- build_fadt(table_data, linker, &fadt, s->oem_id, s->oem_table_id);
- }
- /* DSDT */
- static void build_dsdt(GArray *table_data,
- BIOSLinker *linker,
- RISCVVirtState *s)
- {
- Aml *scope, *dsdt;
- MachineState *ms = MACHINE(s);
- uint8_t socket_count;
- const MemMapEntry *memmap = s->memmap;
- AcpiTable table = { .sig = "DSDT", .rev = 2, .oem_id = s->oem_id,
- .oem_table_id = s->oem_table_id };
- acpi_table_begin(&table, table_data);
- dsdt = init_aml_allocator();
- /*
- * 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, s);
- fw_cfg_acpi_dsdt_add(scope, &memmap[VIRT_FW_CFG]);
- socket_count = riscv_socket_count(ms);
- if (s->aia_type == VIRT_AIA_TYPE_NONE) {
- acpi_dsdt_add_plic_aplic(scope, socket_count, memmap[VIRT_PLIC].base,
- memmap[VIRT_PLIC].size, "RSCV0001");
- } else {
- acpi_dsdt_add_plic_aplic(scope, socket_count, memmap[VIRT_APLIC_S].base,
- memmap[VIRT_APLIC_S].size, "RSCV0002");
- }
- acpi_dsdt_add_uart(scope, &memmap[VIRT_UART0], UART0_IRQ);
- if (socket_count == 1) {
- virtio_acpi_dsdt_add(scope, memmap[VIRT_VIRTIO].base,
- memmap[VIRT_VIRTIO].size,
- VIRTIO_IRQ, 0, VIRTIO_COUNT);
- acpi_dsdt_add_gpex_host(scope, PCIE_IRQ);
- } else if (socket_count == 2) {
- virtio_acpi_dsdt_add(scope, memmap[VIRT_VIRTIO].base,
- memmap[VIRT_VIRTIO].size,
- VIRTIO_IRQ + VIRT_IRQCHIP_NUM_SOURCES, 0,
- VIRTIO_COUNT);
- acpi_dsdt_add_gpex_host(scope, PCIE_IRQ + VIRT_IRQCHIP_NUM_SOURCES);
- } else {
- virtio_acpi_dsdt_add(scope, memmap[VIRT_VIRTIO].base,
- memmap[VIRT_VIRTIO].size,
- VIRTIO_IRQ + VIRT_IRQCHIP_NUM_SOURCES, 0,
- VIRTIO_COUNT);
- acpi_dsdt_add_gpex_host(scope, PCIE_IRQ + VIRT_IRQCHIP_NUM_SOURCES * 2);
- }
- 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);
- acpi_table_end(linker, &table);
- free_aml_allocator();
- }
- /*
- * ACPI spec, Revision 6.5+
- * 5.2.12 Multiple APIC Description Table (MADT)
- * REF: https://github.com/riscv-non-isa/riscv-acpi/issues/15
- * https://drive.google.com/file/d/1R6k4MshhN3WTT-hwqAquu5nX6xSEqK2l/view
- * https://drive.google.com/file/d/1oMGPyOD58JaPgMl1pKasT-VKsIKia7zR/view
- */
- static void build_madt(GArray *table_data,
- BIOSLinker *linker,
- RISCVVirtState *s)
- {
- MachineClass *mc = MACHINE_GET_CLASS(s);
- MachineState *ms = MACHINE(s);
- const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(ms);
- uint8_t group_index_bits = imsic_num_bits(riscv_socket_count(ms));
- uint8_t guest_index_bits = imsic_num_bits(s->aia_guests + 1);
- uint16_t imsic_max_hart_per_socket = 0;
- uint8_t hart_index_bits;
- uint64_t aplic_addr;
- uint32_t gsi_base;
- uint8_t socket;
- for (socket = 0; socket < riscv_socket_count(ms); socket++) {
- if (imsic_max_hart_per_socket < s->soc[socket].num_harts) {
- imsic_max_hart_per_socket = s->soc[socket].num_harts;
- }
- }
- hart_index_bits = imsic_num_bits(imsic_max_hart_per_socket);
- AcpiTable table = { .sig = "APIC", .rev = 6, .oem_id = s->oem_id,
- .oem_table_id = s->oem_table_id };
- acpi_table_begin(&table, table_data);
- /* Local Interrupt Controller Address */
- build_append_int_noprefix(table_data, 0, 4);
- build_append_int_noprefix(table_data, 0, 4); /* MADT Flags */
- /* RISC-V Local INTC structures per HART */
- for (int i = 0; i < arch_ids->len; i++) {
- riscv_acpi_madt_add_rintc(i, arch_ids, table_data, s);
- }
- /* IMSIC */
- if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) {
- /* IMSIC */
- build_append_int_noprefix(table_data, 0x19, 1); /* Type */
- build_append_int_noprefix(table_data, 16, 1); /* Length */
- build_append_int_noprefix(table_data, 1, 1); /* Version */
- build_append_int_noprefix(table_data, 0, 1); /* Reserved */
- build_append_int_noprefix(table_data, 0, 4); /* Flags */
- /* Number of supervisor mode Interrupt Identities */
- build_append_int_noprefix(table_data, VIRT_IRQCHIP_NUM_MSIS, 2);
- /* Number of guest mode Interrupt Identities */
- build_append_int_noprefix(table_data, VIRT_IRQCHIP_NUM_MSIS, 2);
- /* Guest Index Bits */
- build_append_int_noprefix(table_data, guest_index_bits, 1);
- /* Hart Index Bits */
- build_append_int_noprefix(table_data, hart_index_bits, 1);
- /* Group Index Bits */
- build_append_int_noprefix(table_data, group_index_bits, 1);
- /* Group Index Shift */
- build_append_int_noprefix(table_data, IMSIC_MMIO_GROUP_MIN_SHIFT, 1);
- }
- if (s->aia_type != VIRT_AIA_TYPE_NONE) {
- /* APLICs */
- for (socket = 0; socket < riscv_socket_count(ms); socket++) {
- aplic_addr = s->memmap[VIRT_APLIC_S].base +
- s->memmap[VIRT_APLIC_S].size * socket;
- gsi_base = VIRT_IRQCHIP_NUM_SOURCES * socket;
- build_append_int_noprefix(table_data, 0x1A, 1); /* Type */
- build_append_int_noprefix(table_data, 36, 1); /* Length */
- build_append_int_noprefix(table_data, 1, 1); /* Version */
- build_append_int_noprefix(table_data, socket, 1); /* APLIC ID */
- build_append_int_noprefix(table_data, 0, 4); /* Flags */
- build_append_int_noprefix(table_data, 0, 8); /* Hardware ID */
- /* Number of IDCs */
- if (s->aia_type == VIRT_AIA_TYPE_APLIC) {
- build_append_int_noprefix(table_data,
- s->soc[socket].num_harts,
- 2);
- } else {
- build_append_int_noprefix(table_data, 0, 2);
- }
- /* Total External Interrupt Sources Supported */
- build_append_int_noprefix(table_data, VIRT_IRQCHIP_NUM_SOURCES, 2);
- /* Global System Interrupt Base */
- build_append_int_noprefix(table_data, gsi_base, 4);
- /* APLIC Address */
- build_append_int_noprefix(table_data, aplic_addr, 8);
- /* APLIC size */
- build_append_int_noprefix(table_data,
- s->memmap[VIRT_APLIC_S].size, 4);
- }
- } else {
- /* PLICs */
- for (socket = 0; socket < riscv_socket_count(ms); socket++) {
- aplic_addr = s->memmap[VIRT_PLIC].base +
- s->memmap[VIRT_PLIC].size * socket;
- gsi_base = VIRT_IRQCHIP_NUM_SOURCES * socket;
- build_append_int_noprefix(table_data, 0x1B, 1); /* Type */
- build_append_int_noprefix(table_data, 36, 1); /* Length */
- build_append_int_noprefix(table_data, 1, 1); /* Version */
- build_append_int_noprefix(table_data, socket, 1); /* PLIC ID */
- build_append_int_noprefix(table_data, 0, 8); /* Hardware ID */
- /* Total External Interrupt Sources Supported */
- build_append_int_noprefix(table_data,
- VIRT_IRQCHIP_NUM_SOURCES - 1, 2);
- build_append_int_noprefix(table_data, 0, 2); /* Max Priority */
- build_append_int_noprefix(table_data, 0, 4); /* Flags */
- /* PLIC Size */
- build_append_int_noprefix(table_data, s->memmap[VIRT_PLIC].size, 4);
- /* PLIC Address */
- build_append_int_noprefix(table_data, aplic_addr, 8);
- /* Global System Interrupt Vector Base */
- build_append_int_noprefix(table_data, gsi_base, 4);
- }
- }
- acpi_table_end(linker, &table);
- }
- /*
- * ACPI spec, Revision 6.5+
- * 5.2.16 System Resource Affinity Table (SRAT)
- * REF: https://github.com/riscv-non-isa/riscv-acpi/issues/25
- * https://drive.google.com/file/d/1YTdDx2IPm5IeZjAW932EYU-tUtgS08tX/view
- */
- static void
- build_srat(GArray *table_data, BIOSLinker *linker, RISCVVirtState *vms)
- {
- int i;
- uint64_t mem_base;
- MachineClass *mc = MACHINE_GET_CLASS(vms);
- MachineState *ms = MACHINE(vms);
- const CPUArchIdList *cpu_list = mc->possible_cpu_arch_ids(ms);
- AcpiTable table = { .sig = "SRAT", .rev = 3, .oem_id = vms->oem_id,
- .oem_table_id = vms->oem_table_id };
- acpi_table_begin(&table, table_data);
- build_append_int_noprefix(table_data, 1, 4); /* Reserved */
- build_append_int_noprefix(table_data, 0, 8); /* Reserved */
- for (i = 0; i < cpu_list->len; ++i) {
- uint32_t nodeid = cpu_list->cpus[i].props.node_id;
- /*
- * 5.2.16.8 RINTC Affinity Structure
- */
- build_append_int_noprefix(table_data, 7, 1); /* Type */
- build_append_int_noprefix(table_data, 20, 1); /* Length */
- build_append_int_noprefix(table_data, 0, 2); /* Reserved */
- build_append_int_noprefix(table_data, nodeid, 4); /* Proximity Domain */
- build_append_int_noprefix(table_data, i, 4); /* ACPI Processor UID */
- /* Flags, Table 5-70 */
- build_append_int_noprefix(table_data, 1 /* Flags: Enabled */, 4);
- build_append_int_noprefix(table_data, 0, 4); /* Clock Domain */
- }
- mem_base = vms->memmap[VIRT_DRAM].base;
- for (i = 0; i < ms->numa_state->num_nodes; ++i) {
- if (ms->numa_state->nodes[i].node_mem > 0) {
- build_srat_memory(table_data, mem_base,
- ms->numa_state->nodes[i].node_mem, i,
- MEM_AFFINITY_ENABLED);
- mem_base += ms->numa_state->nodes[i].node_mem;
- }
- }
- acpi_table_end(linker, &table);
- }
- static void virt_acpi_build(RISCVVirtState *s, AcpiBuildTables *tables)
- {
- GArray *table_offsets;
- unsigned dsdt, xsdt;
- GArray *tables_blob = tables->table_data;
- MachineState *ms = MACHINE(s);
- table_offsets = g_array_new(false, true,
- sizeof(uint32_t));
- bios_linker_loader_alloc(tables->linker,
- ACPI_BUILD_TABLE_FILE, tables_blob,
- 64, false);
- /* DSDT is pointed to by FADT */
- dsdt = tables_blob->len;
- build_dsdt(tables_blob, tables->linker, s);
- /* FADT and others pointed to by XSDT */
- acpi_add_table(table_offsets, tables_blob);
- build_fadt_rev6(tables_blob, tables->linker, s, dsdt);
- acpi_add_table(table_offsets, tables_blob);
- build_madt(tables_blob, tables->linker, s);
- acpi_add_table(table_offsets, tables_blob);
- build_rhct(tables_blob, tables->linker, s);
- acpi_add_table(table_offsets, tables_blob);
- spcr_setup(tables_blob, tables->linker, s);
- acpi_add_table(table_offsets, tables_blob);
- {
- AcpiMcfgInfo mcfg = {
- .base = s->memmap[VIRT_PCIE_ECAM].base,
- .size = s->memmap[VIRT_PCIE_ECAM].size,
- };
- build_mcfg(tables_blob, tables->linker, &mcfg, s->oem_id,
- s->oem_table_id);
- }
- if (ms->numa_state->num_nodes > 0) {
- acpi_add_table(table_offsets, tables_blob);
- build_srat(tables_blob, tables->linker, s);
- if (ms->numa_state->have_numa_distance) {
- acpi_add_table(table_offsets, tables_blob);
- build_slit(tables_blob, tables->linker, ms, s->oem_id,
- s->oem_table_id);
- }
- }
- /* XSDT is pointed to by RSDP */
- xsdt = tables_blob->len;
- build_xsdt(tables_blob, tables->linker, table_offsets, s->oem_id,
- s->oem_table_id);
- /* RSDP is in FSEG memory, so allocate it separately */
- {
- AcpiRsdpData rsdp_data = {
- .revision = 2,
- .oem_id = s->oem_id,
- .xsdt_tbl_offset = &xsdt,
- .rsdt_tbl_offset = NULL,
- };
- build_rsdp(tables->rsdp, tables->linker, &rsdp_data);
- }
- /*
- * The align size is 128, warn if 64k is not enough therefore
- * the align size could be resized.
- */
- if (tables_blob->len > ACPI_BUILD_TABLE_SIZE / 2) {
- warn_report("ACPI table size %u exceeds %d bytes,"
- " migration may not work",
- tables_blob->len, ACPI_BUILD_TABLE_SIZE / 2);
- error_printf("Try removing some objects.");
- }
- acpi_align_size(tables_blob, ACPI_BUILD_TABLE_SIZE);
- /* Clean up 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(RISCV_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 = (const VMStateField[]) {
- VMSTATE_BOOL(patched, AcpiBuildState),
- VMSTATE_END_OF_LIST()
- },
- };
- void virt_acpi_setup(RISCVVirtState *s)
- {
- AcpiBuildTables tables;
- AcpiBuildState *build_state;
- build_state = g_malloc0(sizeof *build_state);
- acpi_build_tables_init(&tables);
- virt_acpi_build(s, &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);
- 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);
- build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update,
- build_state, tables.rsdp,
- ACPI_BUILD_RSDP_FILE);
- 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);
- /*
- * Clean up tables but don't free the memory: we track it
- * in build_state.
- */
- acpi_build_tables_cleanup(&tables, false);
- }
|