Ping ! 在 2023/1/12 下午2:11, Song Gao 写道:
For loongarch virt machine, add powerdown notification callback and send ACPI_POWER_DOWN_STATUS event by acpi ged. Also add acpi dsdt table for ACPI_POWER_BUTTON_DEVICE device in this patch.Signed-off-by: Song Gao <gaos...@loongson.cn> --- hw/loongarch/acpi-build.c | 1 + hw/loongarch/virt.c | 14 ++++++++++++++ include/hw/loongarch/virt.h | 1 + 3 files changed, 16 insertions(+) diff --git a/hw/loongarch/acpi-build.c b/hw/loongarch/acpi-build.c index c2b237736d..b7601cb284 100644 --- a/hw/loongarch/acpi-build.c +++ b/hw/loongarch/acpi-build.c @@ -261,6 +261,7 @@ build_la_ged_aml(Aml *dsdt, MachineState *machine) AML_SYSTEM_MEMORY, VIRT_GED_MEM_ADDR); } + acpi_dsdt_add_power_button(dsdt); }static void build_pci_device_aml(Aml *scope, LoongArchMachineState *lams)diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 66be925068..a4998599d3 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -316,6 +316,16 @@ static void virt_machine_done(Notifier *notifier, void *data) loongarch_acpi_setup(lams); }+static void virt_powerdown_req(Notifier *notifier, void *opaque)+{ + LoongArchMachineState *s = container_of(notifier, + LoongArchMachineState, powerdown_notifier); + + if (s->acpi_ged) { + acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS); + } +} + struct memmap_entry { uint64_t address; uint64_t length; @@ -859,6 +869,10 @@ static void loongarch_init(MachineState *machine) VIRT_PLATFORM_BUS_IRQ); lams->machine_done.notify = virt_machine_done; qemu_add_machine_init_done_notifier(&lams->machine_done); + /* connect powerdown request */ + lams->powerdown_notifier.notify = virt_powerdown_req; + qemu_register_powerdown_notifier(&lams->powerdown_notifier); + fdt_add_pcie_node(lams); /* * Since lowmem region starts from 0 and Linux kernel legacy start address diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index f5f818894e..7ae8a91229 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -45,6 +45,7 @@ struct LoongArchMachineState { /* State for other subsystems/APIs: */ FWCfgState *fw_cfg; Notifier machine_done; + Notifier powerdown_notifier; OnOffAuto acpi; char *oem_id; char *oem_table_id;
