[SeaBIOS] [PATCH] if HPET is not present do not report it in DSDT

[Igor Mammedov]

On 03/11/2012 09:08 AM, Gleb Natapov wrote:
> Replicate the check that detects if HPET table should be created
> in AML too.
>
> Signed-off-by: Gleb Natapov<gleb at redhat.com>
> diff --git a/src/acpi-dsdt.dsl b/src/acpi-dsdt.dsl
> index 7082b65..4e04c48 100644
> --- a/src/acpi-dsdt.dsl
> +++ b/src/acpi-dsdt.dsl
> @@ -188,8 +188,22 @@ DefinitionBlock (
>           Device(HPET) {
>               Name(_HID,  EISAID("PNP0103"))
>               Name(_UID, 0)
> +            OperationRegion(HPTM, SystemMemory , 0xFED00000, 0x400)
> +            Field(HPTM, DWordAcc, Lock, Preserve) {
> +                    VEND, 32,
> +                    PRD, 32,
> +            }
>               Method (_STA, 0, NotSerialized) {
> -                    Return(0x0F)
> +                    Store (VEND, Local0)
> +                    Store (PRD, Local1)
> +                    ShiftRight(Local0, 16, Local0)
> +                    If (LOr (LEqual(Local0, 0), LEqual(Local0, 0xffff))) {
> +                            Return (0x0)
> +                    }
> +                    If (LOr (LEqual(Local1, 0), LGreater(Local1, 100000000))) {
> +                            Return (0x0)
> +                    }
> +                    Return (0x0F)
>               }
>               Name(_CRS, ResourceTemplate() {
>                   DWordMemory(
> --
> 			Gleb.
>
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Reviewed-by: Igor Mammedov <imammedo at redhat.com>



-----
  Igor