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From: "PierreGondois" <pierre.gondois@arm.com>
To: Jeff Brasen <jbrasen@nvidia.com>, devel@edk2.groups.io
Cc: quic_llindhol@quicinc.com, ardb+tianocore@kernel.org,
	Sami.Mujawar@arm.com, Alexei.Fedorov@arm.com
Subject: Re: [PATCH] DynamicTablesPkg: SSDT _LPI revision is incorrect
Date: Fri, 18 Nov 2022 09:12:28 +0100	[thread overview]
Message-ID: <69d2694f-d5ab-01d9-894a-2bce5d31f46a@arm.com> (raw)
In-Reply-To: <a1cae5eb965e34986aa81339d130b5dd62671bca.1668535182.git.jbrasen@nvidia.com>

Hello Jeff,
The Lpi version should effectively be 0:
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>

Regards,
Pierre

On 11/15/22 19:01, Jeff Brasen wrote:
> _LPI Revision should be 0 per the ACPI 6.5 specification.
> "The revision number of the _LPI object. Current revision is 0."
> 
> Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
> ---
>   .../Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c    | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
> index d06c7615fb..91199c4af2 100644
> --- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
> +++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
> @@ -482,7 +482,7 @@ GenerateLpiStates (
>       }
>   
>       // We do not support the LevelId field for now, let it to 0.
> -    Status = AmlCreateLpiNode (AslName, 1, 0, ScopeNode, &LpiNode);
> +    Status = AmlCreateLpiNode (AslName, 0, 0, ScopeNode, &LpiNode);
>       if (EFI_ERROR (Status)) {
>         ASSERT (0);
>         return Status;

  reply	other threads:[~2022-11-18  8:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-15 18:01 [PATCH] DynamicTablesPkg: SSDT _LPI revision is incorrect Jeff Brasen
2022-11-18  8:12 ` PierreGondois [this message]
2022-12-14 15:24 ` Sami Mujawar
2022-12-14 15:55   ` [edk2-devel] " Sami Mujawar

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