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-rw-r--r--hw/i386/Kconfig1
-rw-r--r--hw/i386/acpi-microvm.c187
-rw-r--r--hw/i386/acpi-microvm.h8
-rw-r--r--hw/i386/meson.build2
-rw-r--r--hw/i386/microvm.c40
5 files changed, 237 insertions, 1 deletions
diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig
index 03e347b207..d0bd8b537d 100644
--- a/hw/i386/Kconfig
+++ b/hw/i386/Kconfig
@@ -103,6 +103,7 @@ config MICROVM
select I8259
select MC146818RTC
select VIRTIO_MMIO
+ select ACPI_HW_REDUCED
config X86_IOMMU
bool
diff --git a/hw/i386/acpi-microvm.c b/hw/i386/acpi-microvm.c
new file mode 100644
index 0000000000..06ef33949f
--- /dev/null
+++ b/hw/i386/acpi-microvm.c
@@ -0,0 +1,187 @@
+/* Support for generating ACPI tables and passing them to Guests
+ *
+ * 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>
+ *
+ * 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);
+
+ /* ACPI 5.0: Table 7-209 System State Package */
+ scope = aml_scope("\\");
+ pkg = aml_package(4);
+ aml_append(pkg, aml_int(ACPI_GED_SLP_TYP_S5));
+ 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, 2, 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 = {
+ /* ACPI 5.0: 4.1 Hardware-Reduced ACPI */
+ .rev = 5,
+ .flags = ((1 << ACPI_FADT_F_HW_REDUCED_ACPI) |
+ (1 << ACPI_FADT_F_RESET_REG_SUP)),
+
+ /* ACPI 5.0: 4.8.3.7 Sleep Control and Status Registers */
+ .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,
+ },
+
+ /* ACPI 5.0: 4.8.3.6 Reset Register */
+ .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 = {
+ /* ACPI 2.0: 5.2.4.3 RSDP Structure */
+ .revision = 2, /* xsdt needs v2 */
+ .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/acpi-microvm.h b/hw/i386/acpi-microvm.h
new file mode 100644
index 0000000000..dfe853690e
--- /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/hw/i386/meson.build b/hw/i386/meson.build
index 1a7d1a685d..e5d109f5c6 100644
--- a/hw/i386/meson.build
+++ b/hw/i386/meson.build
@@ -11,7 +11,7 @@ i386_ss.add(when: 'CONFIG_X86_IOMMU', if_true: files('x86-iommu.c'),
if_false: files('x86-iommu-stub.c'))
i386_ss.add(when: 'CONFIG_AMD_IOMMU', if_true: files('amd_iommu.c'))
i386_ss.add(when: 'CONFIG_I440FX', if_true: files('pc_piix.c'))
-i386_ss.add(when: 'CONFIG_MICROVM', if_true: files('microvm.c'))
+i386_ss.add(when: 'CONFIG_MICROVM', if_true: files('microvm.c', 'acpi-microvm.c'))
i386_ss.add(when: 'CONFIG_Q35', if_true: files('pc_q35.c'))
i386_ss.add(when: 'CONFIG_VMMOUSE', if_true: files('vmmouse.c'))
i386_ss.add(when: 'CONFIG_VMPORT', if_true: files('vmport.c'))
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index e4501f2cdf..e1b86da8a9 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)
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-29 04:21:57 +0000