From: Shannon Zhao <shannon.z...@linaro.org>
Add power button device in ACPI DSDT table.
Signed-off-by: Shannon Zhao <zhaoshengl...@huawei.com>
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
Reviewed-by: Wei Huang <w...@redhat.com>
Tested-by: Wei Huang <w...@redhat.com>
---
hw/arm/virt-acpi-build.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index bf6b934..1424672 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);
@@ -340,6 +341,15 @@ 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)
@@ -558,6 +568,7 @@ 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);
--
2.0.4
