From ac6aa59a21c823b1e2c65ce3372bd01e146b743d Mon Sep 17 00:00:00 2001 From: Shannon Zhao Date: Thu, 17 Dec 2015 13:37:14 +0000 Subject: [PATCH] ARM: ACPI: Add power button device in ACPI DSDT table Add power button device in ACPI DSDT table. Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao Reviewed-by: Wei Huang Tested-by: Wei Huang Reviewed-by: Igor Mammedov Message-id: 1449804086-3464-6-git-send-email-zhaoshenglong@huawei.com Signed-off-by: Peter Maydell --- 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 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); -- GitLab