Got it. Good information.

Thanks,
Star
-----Original Message-----
From: Marvin H?user [mailto:marvin.haeu...@outlook.com] 
Sent: Thursday, May 17, 2018 7:45 PM
To: edk2-devel@lists.01.org
Cc: Zeng, Star <star.z...@intel.com>; Kinney, Michael D 
<michael.d.kin...@intel.com>; Gao, Liming <liming....@intel.com>; Yao, Jiewen 
<jiewen....@intel.com>
Subject: RE: [PATCH] MdePkg/Hpet: Add Event Timer Block ID definition.

Hey Star,

Actually the definition added is part of the definition of the ACPI Table 
header.
I think there might be confusion because the first 32 bits match the first 32 
bits of the Capabilities register.
However, they are defined separately and the ACPI field lacks the upper 32 bits.

Thanks,
Marvin.

> -----Original Message-----
> From: Zeng, Star <star.z...@intel.com>
> Sent: Thursday, May 17, 2018 3:31 AM
> To: marvin.haeu...@outlook.com; edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming 
> <liming....@intel.com>; Yao, Jiewen <jiewen....@intel.com>; Zeng, Star 
> <star.z...@intel.com>
> Subject: RE: [PATCH] MdePkg/Hpet: Add Event Timer Block ID definition.
> 
> Was HighPrecisionEventTimerTable.h just created for ACPI related, but 
> not for HPET register related?
> 
> We also see AlertStandardFormatTable.h, DmaRemappingReportingTable.h, 
> etc. They are all ACPI related.
> What is the criteria about including ACPI related, and including 
> register/command/message related?
> Should they be included in same header file, or separated header files?
> 
> We also see HEPT register related defined in 
> PcAtChipsetPkg\Include\Register\Hpet.h.
> 
> 
> Thanks,
> Star
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of 
> Marvin H?user
> Sent: Wednesday, May 16, 2018 3:35 AM
> To: edk2-devel@lists.01.org
> Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Gao, Liming 
> <liming....@intel.com>
> Subject: [edk2] [PATCH] MdePkg/Hpet: Add Event Timer Block ID definition.
> 
> This patch adds the HPET Event Timer Block ID definition that can be 
> found in the IA-PC HPET Specification, section 3.2.4.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Marvin Haeuser <marvin.haeu...@outlook.com>
> ---
>  MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h | 18
> +++++++++++++++++-
>  1 file changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git
> a/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
> b/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
> index 0d83cd5335de..926445233944 100644
> --- a/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
> +++ b/MdePkg/Include/IndustryStandard/HighPrecisionEventTimerTable.h
> @@ -2,7 +2,7 @@
>    ACPI high precision event timer table definition, at www.intel.com
>    Specification name is IA-PC HPET (High Precision Event Timers) 
> Specification.
> 
> -  Copyright (c) 2007 - 2008, Intel Corporation. All rights 
> reserved.<BR>
> +  Copyright (c) 2007 - 2018, Intel Corporation. All rights 
> + reserved.<BR>
>    This program and the accompanying materials
>    are licensed and made available under the terms and conditions of 
> the BSD License
>    which accompanies this distribution.  The full text of the license 
> may be found at @@ -22,6 +22,22 @@  //  #pragma pack(1)
> 
> +///
> +/// HPET Event Timer Block ID described in IA-PC HPET Specification, 3.2.4.
> +///
> +typedef union {
> +  struct {
> +    UINT32 Revision       : 8;
> +    UINT32 NumberOfTimers : 5;
> +    UINT32 CounterSize    : 1;
> +    UINT32 Reserved       : 1;
> +    UINT32 LegacyRoute    : 1;
> +    UINT32 VendorId       : 16;
> +  }      Bits;
> +  UINT32 Uint32;
> +} EFI_ACPI_HIGH_PRECISION_EVENT_TIMER_BLOCK_ID;
> +
> +
>  ///
>  /// High Precision Event Timer Table header definition.
>  ///
> --
> 2.17.0.windows.1
> 
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