| /* Support for generating ACPI tables and passing them to Guests |
| * |
| * ARM virt ACPI generation |
| * |
| * Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net> |
| * Copyright (C) 2006 Fabrice Bellard |
| * Copyright (C) 2013 Red Hat Inc |
| * |
| * Author: Michael S. Tsirkin <mst@redhat.com> |
| * |
| * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD. |
| * |
| * Author: Shannon Zhao <zhaoshenglong@huawei.com> |
| * |
| * 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-common.h" |
| #include "hw/arm/virt-acpi-build.h" |
| #include "qemu/bitmap.h" |
| #include "trace.h" |
| #include "qom/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/loader.h" |
| #include "hw/hw.h" |
| #include "hw/acpi/aml-build.h" |
| #include "hw/pci/pcie_host.h" |
| #include "hw/pci/pci.h" |
| |
| #define ARM_SPI_BASE 32 |
| |
| typedef struct VirtAcpiCpuInfo { |
| DECLARE_BITMAP(found_cpus, VIRT_ACPI_CPU_ID_LIMIT); |
| } VirtAcpiCpuInfo; |
| |
| static void virt_acpi_get_cpu_info(VirtAcpiCpuInfo *cpuinfo) |
| { |
| CPUState *cpu; |
| |
| memset(cpuinfo->found_cpus, 0, sizeof cpuinfo->found_cpus); |
| CPU_FOREACH(cpu) { |
| set_bit(cpu->cpu_index, cpuinfo->found_cpus); |
| } |
| } |
| |
| 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, |
| int 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)); |
| aml_append(dev, aml_name_decl("_CRS", crs)); |
| |
| /* The _ADR entry is used to link this device to the UART described |
| * in the SPCR table, i.e. SPCR.base_address.address == _ADR. |
| */ |
| aml_append(dev, aml_name_decl("_ADR", aml_int(uart_memmap->base))); |
| |
| aml_append(scope, dev); |
| } |
| |
| static void acpi_dsdt_add_rtc(Aml *scope, const MemMapEntry *rtc_memmap, |
| int rtc_irq) |
| { |
| Aml *dev = aml_device("RTC0"); |
| aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0013"))); |
| aml_append(dev, aml_name_decl("_UID", aml_int(0))); |
| |
| Aml *crs = aml_resource_template(); |
| aml_append(crs, aml_memory32_fixed(rtc_memmap->base, |
| rtc_memmap->size, AML_READ_WRITE)); |
| aml_append(crs, |
| aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, |
| AML_EXCLUSIVE, rtc_irq)); |
| 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, |
| int mmio_irq, int num) |
| { |
| hwaddr base = virtio_mmio_memmap->base; |
| hwaddr size = virtio_mmio_memmap->size; |
| int irq = mmio_irq; |
| int i; |
| |
| for (i = 0; i < num; 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 *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 + i)); |
| 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, int irq, |
| bool use_highmem) |
| { |
| Aml *method, *crs, *ifctx, *UUID, *ifctx1, *elsectx, *buf; |
| int i, bus_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[VIRT_PCIE_ECAM].base; |
| hwaddr size_ecam = memmap[VIRT_PCIE_ECAM].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("_ADR", 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"))); |
| |
| /* Declare the PCI Routing Table. */ |
| Aml *rt_pkg = aml_package(nr_pcie_buses * PCI_NUM_PINS); |
| for (bus_no = 0; bus_no < nr_pcie_buses; bus_no++) { |
| for (i = 0; i < PCI_NUM_PINS; i++) { |
| int gsi = (i + bus_no) % PCI_NUM_PINS; |
| Aml *pkg = aml_package(4); |
| aml_append(pkg, aml_int((bus_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++) { |
| 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(0))); |
| crs = aml_resource_template(); |
| aml_append(crs, |
| aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, |
| AML_EXCLUSIVE, irq + i)); |
| 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, irq + i)); |
| aml_append(dev_gsi, aml_name_decl("_CRS", crs)); |
| method = aml_method("_SRS", 1); |
| aml_append(dev_gsi, method); |
| aml_append(dev, dev_gsi); |
| } |
| |
| method = aml_method("_CBA", 0); |
| aml_append(method, aml_return(aml_int(base_ecam))); |
| aml_append(dev, method); |
| |
| method = aml_method("_CRS", 0); |
| 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_PCIE_MMIO_HIGH].base; |
| hwaddr size_mmio_high = memmap[VIRT_PCIE_MMIO_HIGH].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, 0x0000, |
| size_mmio_high)); |
| } |
| |
| aml_append(method, aml_name_decl("RBUF", rbuf)); |
| 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_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"))); |
| aml_append(ifctx, aml_store(aml_and(aml_name("CTRL"), aml_int(0x1D)), |
| aml_name("CTRL"))); |
| |
| ifctx1 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(0x1)))); |
| aml_append(ifctx1, aml_store(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_store(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_store(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); |
| |
| /* 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_rp0 = aml_device("%s", "RP0"); |
| aml_append(dev_rp0, aml_name_decl("_ADR", aml_int(0))); |
| aml_append(dev, dev_rp0); |
| aml_append(scope, dev); |
| } |
| |
| /* RSDP */ |
| static GArray * |
| build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt) |
| { |
| AcpiRsdpDescriptor *rsdp = acpi_data_push(rsdp_table, sizeof *rsdp); |
| |
| bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, 16, |
| true /* fseg memory */); |
| |
| memcpy(&rsdp->signature, "RSD PTR ", sizeof(rsdp->signature)); |
| memcpy(rsdp->oem_id, ACPI_BUILD_APPNAME6, sizeof(rsdp->oem_id)); |
| rsdp->length = cpu_to_le32(sizeof(*rsdp)); |
| rsdp->revision = 0x02; |
| |
| /* Point to RSDT */ |
| rsdp->rsdt_physical_address = cpu_to_le32(rsdt); |
| /* Address to be filled by Guest linker */ |
| bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, |
| ACPI_BUILD_TABLE_FILE, |
| rsdp_table, &rsdp->rsdt_physical_address, |
| sizeof rsdp->rsdt_physical_address); |
| rsdp->checksum = 0; |
| /* Checksum to be filled by Guest linker */ |
| bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, |
| rsdp, rsdp, sizeof *rsdp, &rsdp->checksum); |
| |
| return rsdp_table; |
| } |
| |
| static void |
| build_spcr(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) |
| { |
| AcpiSerialPortConsoleRedirection *spcr; |
| const MemMapEntry *uart_memmap = &guest_info->memmap[VIRT_UART]; |
| int irq = guest_info->irqmap[VIRT_UART] + ARM_SPI_BASE; |
| |
| 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 *)spcr, "SPCR", sizeof(*spcr), 2); |
| } |
| |
| static void |
| build_mcfg(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) |
| { |
| AcpiTableMcfg *mcfg; |
| const MemMapEntry *memmap = guest_info->memmap; |
| int len = sizeof(*mcfg) + sizeof(mcfg->allocation[0]); |
| |
| mcfg = acpi_data_push(table_data, len); |
| mcfg->allocation[0].address = cpu_to_le64(memmap[VIRT_PCIE_ECAM].base); |
| |
| /* Only a single allocation so no need to play with segments */ |
| mcfg->allocation[0].pci_segment = cpu_to_le16(0); |
| mcfg->allocation[0].start_bus_number = 0; |
| mcfg->allocation[0].end_bus_number = (memmap[VIRT_PCIE_ECAM].size |
| / PCIE_MMCFG_SIZE_MIN) - 1; |
| |
| build_header(linker, table_data, (void *)mcfg, "MCFG", len, 1); |
| } |
| |
| /* GTDT */ |
| static void |
| build_gtdt(GArray *table_data, GArray *linker) |
| { |
| int gtdt_start = table_data->len; |
| AcpiGenericTimerTable *gtdt; |
| |
| 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 = ARCH_TIMER_S_EL1_IRQ + 16; |
| gtdt->secure_el1_flags = ACPI_EDGE_SENSITIVE; |
| |
| gtdt->non_secure_el1_interrupt = ARCH_TIMER_NS_EL1_IRQ + 16; |
| gtdt->non_secure_el1_flags = ACPI_EDGE_SENSITIVE; |
| |
| gtdt->virtual_timer_interrupt = ARCH_TIMER_VIRT_IRQ + 16; |
| gtdt->virtual_timer_flags = ACPI_EDGE_SENSITIVE; |
| |
| gtdt->non_secure_el2_interrupt = ARCH_TIMER_NS_EL2_IRQ + 16; |
| gtdt->non_secure_el2_flags = ACPI_EDGE_SENSITIVE; |
| |
| build_header(linker, table_data, |
| (void *)(table_data->data + gtdt_start), "GTDT", |
| table_data->len - gtdt_start, 2); |
| } |
| |
| /* MADT */ |
| static void |
| build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info, |
| VirtAcpiCpuInfo *cpuinfo) |
| { |
| int madt_start = table_data->len; |
| const MemMapEntry *memmap = guest_info->memmap; |
| const int *irqmap = guest_info->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 = memmap[VIRT_GIC_DIST].base; |
| |
| if (guest_info->gic_version == 3) { |
| 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); |
| } else { |
| for (i = 0; i < guest_info->smp_cpus; i++) { |
| AcpiMadtGenericInterrupt *gicc = acpi_data_push(table_data, |
| sizeof *gicc); |
| gicc->type = ACPI_APIC_GENERIC_INTERRUPT; |
| gicc->length = sizeof(*gicc); |
| gicc->base_address = memmap[VIRT_GIC_CPU].base; |
| gicc->cpu_interface_number = i; |
| gicc->arm_mpidr = i; |
| gicc->uid = i; |
| if (test_bit(i, cpuinfo->found_cpus)) { |
| gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED); |
| } |
| } |
| |
| 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); |
| } |
| |
| /* FADT */ |
| static void |
| build_fadt(GArray *table_data, GArray *linker, unsigned dsdt) |
| { |
| AcpiFadtDescriptorRev5_1 *fadt = acpi_data_push(table_data, sizeof(*fadt)); |
| |
| /* Hardware Reduced = 1 and use PSCI 0.2+ and with HVC */ |
| fadt->flags = cpu_to_le32(1 << ACPI_FADT_F_HW_REDUCED_ACPI); |
| fadt->arm_boot_flags = cpu_to_le16((1 << ACPI_FADT_ARM_USE_PSCI_G_0_2) | |
| (1 << ACPI_FADT_ARM_PSCI_USE_HVC)); |
| |
| /* ACPI v5.1 (fadt->revision.fadt->minor_revision) */ |
| fadt->minor_revision = 0x1; |
| |
| fadt->dsdt = cpu_to_le32(dsdt); |
| /* DSDT address to be filled by Guest linker */ |
| bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE, |
| ACPI_BUILD_TABLE_FILE, |
| table_data, &fadt->dsdt, |
| sizeof fadt->dsdt); |
| |
| build_header(linker, table_data, |
| (void *)fadt, "FACP", sizeof(*fadt), 5); |
| } |
| |
| /* DSDT */ |
| static void |
| build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) |
| { |
| Aml *scope, *dsdt; |
| const MemMapEntry *memmap = guest_info->memmap; |
| const int *irqmap = guest_info->irqmap; |
| |
| dsdt = init_aml_allocator(); |
| /* Reserve space for header */ |
| acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader)); |
| |
| scope = aml_scope("\\_SB"); |
| acpi_dsdt_add_cpus(scope, guest_info->smp_cpus); |
| acpi_dsdt_add_uart(scope, &memmap[VIRT_UART], |
| (irqmap[VIRT_UART] + ARM_SPI_BASE)); |
| acpi_dsdt_add_rtc(scope, &memmap[VIRT_RTC], |
| (irqmap[VIRT_RTC] + ARM_SPI_BASE)); |
| acpi_dsdt_add_flash(scope, &memmap[VIRT_FLASH]); |
| 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), |
| guest_info->use_highmem); |
| |
| 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); |
| 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; |
| VirtGuestInfo *guest_info; |
| } AcpiBuildState; |
| |
| static |
| void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) |
| { |
| GArray *table_offsets; |
| unsigned dsdt, rsdt; |
| VirtAcpiCpuInfo cpuinfo; |
| GArray *tables_blob = tables->table_data; |
| |
| virt_acpi_get_cpu_info(&cpuinfo); |
| |
| table_offsets = g_array_new(false, true /* clear */, |
| sizeof(uint32_t)); |
| |
| bios_linker_loader_alloc(tables->linker, ACPI_BUILD_TABLE_FILE, |
| 64, false /* high memory */); |
| |
| /* |
| * The ACPI v5.1 tables for Hardware-reduced ACPI platform are: |
| * RSDP |
| * RSDT |
| * FADT |
| * GTDT |
| * MADT |
| * MCFG |
| * DSDT |
| */ |
| |
| /* DSDT is pointed to by FADT */ |
| dsdt = tables_blob->len; |
| build_dsdt(tables_blob, tables->linker, guest_info); |
| |
| /* FADT MADT GTDT MCFG SPCR pointed to by RSDT */ |
| acpi_add_table(table_offsets, tables_blob); |
| build_fadt(tables_blob, tables->linker, dsdt); |
| |
| acpi_add_table(table_offsets, tables_blob); |
| build_madt(tables_blob, tables->linker, guest_info, &cpuinfo); |
| |
| acpi_add_table(table_offsets, tables_blob); |
| build_gtdt(tables_blob, tables->linker); |
| |
| acpi_add_table(table_offsets, tables_blob); |
| build_mcfg(tables_blob, tables->linker, guest_info); |
| |
| acpi_add_table(table_offsets, tables_blob); |
| build_spcr(tables_blob, tables->linker, guest_info); |
| |
| /* RSDT is pointed to by RSDP */ |
| rsdt = tables_blob->len; |
| build_rsdt(tables_blob, tables->linker, table_offsets); |
| |
| /* RSDP is in FSEG memory, so allocate it separately */ |
| build_rsdp(tables->rsdp, tables->linker, rsdt); |
| |
| /* 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, uint32_t offset) |
| { |
| 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(build_state->guest_info, &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); |
| |
| |
| 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 MemoryRegion *acpi_add_rom_blob(AcpiBuildState *build_state, |
| GArray *blob, const char *name, |
| uint64_t max_size) |
| { |
| return rom_add_blob(name, blob->data, acpi_data_len(blob), max_size, -1, |
| name, virt_acpi_build_update, build_state); |
| } |
| |
| 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(VirtGuestInfo *guest_info) |
| { |
| AcpiBuildTables tables; |
| AcpiBuildState *build_state; |
| |
| if (!guest_info->fw_cfg) { |
| trace_virt_acpi_setup(); |
| return; |
| } |
| |
| if (!acpi_enabled) { |
| trace_virt_acpi_setup(); |
| return; |
| } |
| |
| build_state = g_malloc0(sizeof *build_state); |
| build_state->guest_info = guest_info; |
| |
| acpi_build_tables_init(&tables); |
| virt_acpi_build(build_state->guest_info, &tables); |
| |
| /* Now expose it all to Guest */ |
| build_state->table_mr = acpi_add_rom_blob(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(build_state, tables.linker, "etc/table-loader", 0); |
| |
| fw_cfg_add_file(guest_info->fw_cfg, ACPI_BUILD_TPMLOG_FILE, |
| tables.tcpalog->data, acpi_data_len(tables.tcpalog)); |
| |
| build_state->rsdp_mr = acpi_add_rom_blob(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); |
| } |
