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authorShannon Zhao <shannon.zhao@linaro.org>2015-12-17 13:37:14 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-12-17 13:37:14 +0000
commitac6aa59a21c823b1e2c65ce3372bd01e146b743d (patch)
tree5666c2cb8b98c808a53476e79b42671842c38a8f /hw
parentaeb1a36d65deaa3942b76ca0091cbd6c1f046737 (diff)
downloadqemu-arm-ac6aa59a21c823b1e2c65ce3372bd01e146b743d.tar.gz
ARM: ACPI: Add power button device in ACPI DSDT table
Add power button device in ACPI DSDT table. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Wei Huang <wei@redhat.com> Tested-by: Wei Huang <wei@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-id: 1449804086-3464-6-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-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);