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hw/loongarch/virt: add system_powerdown hmp command support 

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.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230303010548.295580-1-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-01-10 11:29:16 +08:00
parent c77432d0ef
commit 0d588c4f99
No known key found for this signature in database
GPG Key ID: 40A2FFF239263EDF
3 changed files with 14 additions and 0 deletions
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1
hw/loongarch/acpi-build.c
View File

@ -260,6 +260,7 @@ 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)

12
hw/loongarch/virt.c
View File

@ -316,6 +316,14 @@ 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);
acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
}
struct memmap_entry {
uint64_t address;
uint64_t length;
@ -859,6 +867,10 @@ 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

1
include/hw/loongarch/virt.h
View File

@ -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;