diff options
Diffstat (limited to 'qemu/hw/arm/virt-acpi-build.c')
| -rw-r--r-- | qemu/hw/arm/virt-acpi-build.c | 755 |
1 files changed, 0 insertions, 755 deletions
diff --git a/qemu/hw/arm/virt-acpi-build.c b/qemu/hw/arm/virt-acpi-build.c deleted file mode 100644 index f51fe396c..000000000 --- a/qemu/hw/arm/virt-acpi-build.c +++ /dev/null @@ -1,755 +0,0 @@ -/* 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/osdep.h" -#include "qapi/error.h" -#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 -#define ACPI_POWER_BUTTON_DEVICE "PWRB" - -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)); - - /* 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_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 *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 *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) -{ - 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"))); - aml_append(dev, aml_name_decl("_CCA", aml_int(1))); - - /* 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++) { - 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(0))); - 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_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_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"))); - aml_append(ifctx, aml_store(aml_and(aml_name("CTRL"), aml_int(0x1D), NULL), - 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), NULL), - 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), NULL), - 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), NULL), - 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_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); -} - -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("_ADR", aml_int(0))); - 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("_ADR", aml_int(0))); - aml_append(dev, aml_name_decl("_UID", aml_int(0))); - 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_table, 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, - NULL, NULL); -} - -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, NULL, NULL); -} - -/* 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 | ACPI_GTDT_ALWAYS_ON; - - 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, NULL, NULL); -} - -/* MADT */ -static void -build_madt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) -{ - 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; - - for (i = 0; i < guest_info->smp_cpus; i++) { - AcpiMadtGenericInterrupt *gicc = acpi_data_push(table_data, - sizeof *gicc); - ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i)); - - gicc->type = ACPI_APIC_GENERIC_INTERRUPT; - gicc->length = sizeof(*gicc); - if (guest_info->gic_version == 2) { - gicc->base_address = memmap[VIRT_GIC_CPU].base; - } - gicc->cpu_interface_number = i; - gicc->arm_mpidr = armcpu->mp_affinity; - gicc->uid = i; - gicc->flags = cpu_to_le32(ACPI_GICC_ENABLED); - } - - 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 { - 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(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, NULL, NULL); -} - -/* 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)); - - /* 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, guest_info->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), - guest_info->use_highmem); - acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], - (irqmap[VIRT_GPIO] + ARM_SPI_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; - VirtGuestInfo *guest_info; -} AcpiBuildState; - -static -void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) -{ - GArray *table_offsets; - unsigned dsdt, rsdt; - GArray *tables_blob = tables->table_data; - - 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); - - 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, NULL, NULL); - - /* 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) -{ - 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); -} |