$subject says all. Can be controlled using -M microvm,acpi=on/off. Signed-off-by: Gerd Hoffmann <kra...@redhat.com> --- hw/i386/acpi-microvm.h | 8 ++ include/hw/i386/microvm.h | 9 ++ hw/i386/acpi-microvm.c | 181 ++++++++++++++++++++++++++++++++++++++ hw/i386/microvm.c | 40 +++++++++ hw/i386/Kconfig | 1 + hw/i386/Makefile.objs | 1 + 6 files changed, 240 insertions(+) create mode 100644 hw/i386/acpi-microvm.h create mode 100644 hw/i386/acpi-microvm.c
diff --git a/hw/i386/acpi-microvm.h b/hw/i386/acpi-microvm.h new file mode 100644 index 000000000000..dfe853690e15 --- /dev/null +++ b/hw/i386/acpi-microvm.h @@ -0,0 +1,8 @@ +#ifndef HW_I386_ACPI_MICROVM_H +#define HW_I386_ACPI_MICROVM_H + +#include "hw/i386/microvm.h" + +void acpi_setup_microvm(MicrovmMachineState *mms); + +#endif diff --git a/include/hw/i386/microvm.h b/include/hw/i386/microvm.h index 03e735723726..b6e0d4395af7 100644 --- a/include/hw/i386/microvm.h +++ b/include/hw/i386/microvm.h @@ -24,12 +24,18 @@ #include "hw/boards.h" #include "hw/i386/x86.h" +#include "hw/acpi/acpi_dev_interface.h" /* Platform virtio definitions */ #define VIRTIO_MMIO_BASE 0xfeb00000 #define VIRTIO_NUM_TRANSPORTS 8 #define VIRTIO_CMDLINE_MAXLEN 64 +#define GED_MMIO_BASE 0xfea00000 +#define GED_MMIO_BASE_MEMHP (GED_MMIO_BASE + 0x100) +#define GED_MMIO_BASE_REGS (GED_MMIO_BASE + 0x200) +#define GED_MMIO_IRQ 9 + /* Machine type options */ #define MICROVM_MACHINE_PIT "pit" #define MICROVM_MACHINE_PIC "pic" @@ -58,6 +64,9 @@ typedef struct { /* Machine state */ uint32_t virtio_irq_base; bool kernel_cmdline_fixed; + Notifier machine_done; + Notifier powerdown_req; + AcpiDeviceIf *acpi_dev; } MicrovmMachineState; #define TYPE_MICROVM_MACHINE MACHINE_TYPE_NAME("microvm") diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c new file mode 100644 index 000000000000..7cd830e628af --- /dev/null +++ b/hw/i386/acpi-microvm.c @@ -0,0 +1,181 @@ +/* Support for generating ACPI tables and passing them to Guests + * + * Copyright (C) 2008-2010 Kevin O'Connor <ke...@koconnor.net> + * Copyright (C) 2006 Fabrice Bellard + * Copyright (C) 2013 Red Hat Inc + * + * Author: Michael S. Tsirkin <m...@redhat.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 "exec/memory.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/aml-build.h" +#include "hw/acpi/bios-linker-loader.h" +#include "hw/acpi/generic_event_device.h" +#include "hw/acpi/utils.h" +#include "hw/boards.h" +#include "hw/i386/fw_cfg.h" +#include "hw/i386/microvm.h" + +#include "acpi-common.h" +#include "acpi-microvm.h" + +static void +build_dsdt_microvm(GArray *table_data, BIOSLinker *linker, + MicrovmMachineState *mms) +{ + X86MachineState *x86ms = X86_MACHINE(mms); + Aml *dsdt, *sb_scope, *scope, *pkg; + bool ambiguous; + Object *isabus; + + isabus = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous); + assert(isabus); + assert(!ambiguous); + + dsdt = init_aml_allocator(); + + /* Reserve space for header */ + acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader)); + + sb_scope = aml_scope("_SB"); + fw_cfg_add_acpi_dsdt(sb_scope, x86ms->fw_cfg); + isa_build_aml(ISA_BUS(isabus), sb_scope); + build_ged_aml(sb_scope, GED_DEVICE, HOTPLUG_HANDLER(mms->acpi_dev), + GED_MMIO_IRQ, AML_SYSTEM_MEMORY, GED_MMIO_BASE); + acpi_dsdt_add_power_button(sb_scope); + aml_append(dsdt, sb_scope); + + scope = aml_scope("\\"); + pkg = aml_package(4); + aml_append(pkg, aml_int(5)); /* SLEEP_CONTROL_REG.SLP_TYP */ + aml_append(pkg, aml_int(0)); /* ignored */ + aml_append(pkg, aml_int(0)); /* reserved */ + aml_append(pkg, aml_int(0)); /* reserved */ + aml_append(scope, aml_name_decl("_S5", pkg)); + 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, 5, NULL, NULL); + free_aml_allocator(); +} + +static void acpi_build_microvm(AcpiBuildTables *tables, + MicrovmMachineState *mms) +{ + MachineState *machine = MACHINE(mms); + GArray *table_offsets; + GArray *tables_blob = tables->table_data; + unsigned dsdt, xsdt; + AcpiFadtData pmfadt = { + .rev = 5, + .minor_ver = 1, + .flags = ((1 << ACPI_FADT_F_HW_REDUCED_ACPI) | + (1 << ACPI_FADT_F_RESET_REG_SUP)), + .sleep_ctl = { + .space_id = AML_AS_SYSTEM_MEMORY, + .bit_width = 8, + .address = GED_MMIO_BASE_REGS + ACPI_GED_REG_SLEEP_CTL, + }, + .sleep_sts = { + .space_id = AML_AS_SYSTEM_MEMORY, + .bit_width = 8, + .address = GED_MMIO_BASE_REGS + ACPI_GED_REG_SLEEP_STS, + }, + .reset_reg = { + .space_id = AML_AS_SYSTEM_MEMORY, + .bit_width = 8, + .address = GED_MMIO_BASE_REGS + ACPI_GED_REG_RESET, + }, + .reset_val = ACPI_GED_RESET_VALUE, + }; + + table_offsets = g_array_new(false, true /* clear */, + sizeof(uint32_t)); + bios_linker_loader_alloc(tables->linker, + ACPI_BUILD_TABLE_FILE, tables_blob, + 64 /* Ensure FACS is aligned */, + false /* high memory */); + + dsdt = tables_blob->len; + build_dsdt_microvm(tables_blob, tables->linker, mms); + + pmfadt.dsdt_tbl_offset = &dsdt; + pmfadt.xdsdt_tbl_offset = &dsdt; + acpi_add_table(table_offsets, tables_blob); + build_fadt(tables_blob, tables->linker, &pmfadt, NULL, NULL); + + acpi_add_table(table_offsets, tables_blob); + acpi_build_madt(tables_blob, tables->linker, X86_MACHINE(machine), + mms->acpi_dev, false); + + 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_build_no_update(void *build_opaque) +{ + /* nothing, microvm tables don't change at runtime */ +} + +void acpi_setup_microvm(MicrovmMachineState *mms) +{ + X86MachineState *x86ms = X86_MACHINE(mms); + AcpiBuildTables tables; + + assert(x86ms->fw_cfg); + + if (!x86_machine_is_acpi_enabled(x86ms)) { + return; + } + + acpi_build_tables_init(&tables); + acpi_build_microvm(&tables, mms); + + /* Now expose it all to Guest */ + acpi_add_rom_blob(acpi_build_no_update, NULL, + tables.table_data, + ACPI_BUILD_TABLE_FILE, + ACPI_BUILD_TABLE_MAX_SIZE); + acpi_add_rom_blob(acpi_build_no_update, NULL, + tables.linker->cmd_blob, + "etc/table-loader", 0); + acpi_add_rom_blob(acpi_build_no_update, NULL, + tables.rsdp, + ACPI_BUILD_RSDP_FILE, 0); + + acpi_build_tables_cleanup(&tables, false); +} diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c index ab6ee6c67b1a..75eca7306b11 100644 --- a/hw/i386/microvm.c +++ b/hw/i386/microvm.c @@ -26,6 +26,8 @@ #include "sysemu/cpus.h" #include "sysemu/numa.h" #include "sysemu/reset.h" +#include "sysemu/runstate.h" +#include "acpi-microvm.h" #include "hw/loader.h" #include "hw/irq.h" @@ -41,6 +43,8 @@ #include "hw/i386/e820_memory_layout.h" #include "hw/i386/fw_cfg.h" #include "hw/virtio/virtio-mmio.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/generic_event_device.h" #include "cpu.h" #include "elf.h" @@ -129,6 +133,17 @@ static void microvm_devices_init(MicrovmMachineState *mms) } /* Optional and legacy devices */ + if (x86_machine_is_acpi_enabled(x86ms)) { + DeviceState *dev = qdev_new(TYPE_ACPI_GED_X86); + qdev_prop_set_uint32(dev, "ged-event", ACPI_GED_PWR_DOWN_EVT); + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, GED_MMIO_BASE); + /* sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, GED_MMIO_BASE_MEMHP); */ + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, GED_MMIO_BASE_REGS); + sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, + x86ms->gsi[GED_MMIO_IRQ]); + sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal); + mms->acpi_dev = ACPI_DEVICE_IF(dev); + } if (mms->pic == ON_OFF_AUTO_ON || mms->pic == ON_OFF_AUTO_AUTO) { qemu_irq *i8259; @@ -438,6 +453,26 @@ static void microvm_machine_set_auto_kernel_cmdline(Object *obj, bool value, mms->auto_kernel_cmdline = value; } +static void microvm_machine_done(Notifier *notifier, void *data) +{ + MicrovmMachineState *mms = container_of(notifier, MicrovmMachineState, + machine_done); + + acpi_setup_microvm(mms); +} + +static void microvm_powerdown_req(Notifier *notifier, void *data) +{ + MicrovmMachineState *mms = container_of(notifier, MicrovmMachineState, + powerdown_req); + + if (mms->acpi_dev) { + Object *obj = OBJECT(mms->acpi_dev); + AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj); + adevc->send_event(mms->acpi_dev, ACPI_POWER_DOWN_STATUS); + } +} + static void microvm_machine_initfn(Object *obj) { MicrovmMachineState *mms = MICROVM_MACHINE(obj); @@ -452,6 +487,11 @@ static void microvm_machine_initfn(Object *obj) /* State */ mms->kernel_cmdline_fixed = false; + + mms->machine_done.notify = microvm_machine_done; + qemu_add_machine_init_done_notifier(&mms->machine_done); + mms->powerdown_req.notify = microvm_powerdown_req; + qemu_register_powerdown_notifier(&mms->powerdown_req); } static void microvm_class_init(ObjectClass *oc, void *data) diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig index c93f32f6579d..be746bcb49eb 100644 --- a/hw/i386/Kconfig +++ b/hw/i386/Kconfig @@ -102,6 +102,7 @@ config MICROVM select I8259 select MC146818RTC select VIRTIO_MMIO + select ACPI_HW_REDUCED config X86_IOMMU bool diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs index 622739305882..bbb2fe78f3cd 100644 --- a/hw/i386/Makefile.objs +++ b/hw/i386/Makefile.objs @@ -19,3 +19,4 @@ obj-y += kvmvapic.o obj-$(CONFIG_ACPI) += acpi-common.o obj-$(CONFIG_ACPI_HW_REDUCED) += generic_event_device_x86.o obj-$(CONFIG_PC) += acpi-build.o +obj-$(CONFIG_MICROVM) += acpi-microvm.o -- 2.18.4