Re: [Qemu-devel] [PATCH v4 3/8] ARM: ACPI: Add power button device in ACPI DSDT table

[Igor Mammedov]

On Mon, 7 Dec 2015 15:39:47 +0800
Shannon Zhao <address@hidden> wrote:

> From: Shannon Zhao <address@hidden>
> 
> Add power button device in ACPI DSDT table.
> 
> Signed-off-by: Shannon Zhao <address@hidden>
> Signed-off-by: Shannon Zhao <address@hidden>
> Reviewed-by: Wei Huang <address@hidden>
> Tested-by: Wei Huang <address@hidden>
Reviewed-by: Igor Mammedov <address@hidden>

> ---
>  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);
>