[SeaBIOS] [PATCH] acpi: add Local APIC NMI Structure to MADT.

[Gleb Natapov]

On Thu, Sep 22, 2011 at 09:58:58PM +0900, Kenji Kaneshige wrote:
> Add Local APIC NMI Structure to ACPI MADT.
> 
> Signed-off-by: Kenji Kaneshige <kaneshige.kenji at jp.fujitsu.com>
> ---
>  src/acpi.c |   24 ++++++++++++++++++++++--
>  1 file changed, 22 insertions(+), 2 deletions(-)
> 
> Index: seabios/src/acpi.c
> ===================================================================
> --- seabios.orig/src/acpi.c
> +++ seabios/src/acpi.c
> @@ -134,6 +134,14 @@ struct madt_intsrcovr {
>      u16 flags;
>  } PACKED;
>  
> +struct madt_local_nmi {
> +    ACPI_SUB_HEADER_DEF
> +    u8  processor_id;           /* ACPI processor id */
> +    u16 flags;                  /* MPS INTI flags */
> +    u8  lint;                   /* Local APIC LINT# */
> +} PACKED;
> +
> +
>  /*
>   * ACPI 2.0 Generic Address Space definition.
>   */
> @@ -288,7 +296,9 @@ build_madt(void)
>      int madt_size = (sizeof(struct multiple_apic_table)
>                       + sizeof(struct madt_processor_apic) * MaxCountCPUs
>                       + sizeof(struct madt_io_apic)
> -                     + sizeof(struct madt_intsrcovr) * 16);
> +                     + sizeof(struct madt_intsrcovr) * 16
> +                     + sizeof(struct madt_local_nmi) * MaxCountCPUs);
> +
>      struct multiple_apic_table *madt = malloc_high(madt_size);
>      if (!madt) {
>          warn_noalloc();
> @@ -340,7 +350,17 @@ build_madt(void)
>          intsrcovr++;
>      }
>  
> -    build_header((void*)madt, APIC_SIGNATURE, (void*)intsrcovr - (void*)madt, 1);
> +    struct madt_local_nmi *local_nmi = (void*)intsrcovr;
> +    for (i = 0; i < MaxCountCPUs; i++) {
> +        local_nmi->type         = APIC_LOCAL_NMI;
> +        local_nmi->length       = sizeof(*local_nmi);
> +        local_nmi->processor_id = i;
Spec says that value 0xFF signifies that this applies to all processors
in the machine, so you need to create only one APIC_LOCAL_NMI entry with
0xFF as a processor id.


> +        local_nmi->flags        = 0;
> +        local_nmi->lint         = 1; /* LINT1 */
> +        local_nmi++;
> +    }
> +
> +    build_header((void*)madt, APIC_SIGNATURE, (void*)local_nmi - (void*)madt, 1);
>      return madt;
>  }
>  
> 
> 
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--
			Gleb.