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-rw-r--r--hw/arm/virt-acpi-build.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index c9d67ccbd3..1a6ac6ff37 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -43,6 +43,7 @@
#include "hw/pci/pci.h"
#define ARM_SPI_BASE 32
+#define ACPI_POWER_BUTTON_DEVICE "PWRB"
typedef struct VirtAcpiCpuInfo {
DECLARE_BITMAP(found_cpus, VIRT_ACPI_CPU_ID_LIMIT);
@@ -341,6 +342,15 @@ static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap,
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)
@@ -559,6 +569,7 @@ build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
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);