Re: [edk2-devel] [PATCH v3] MdePkg: Add a new memory type definition

["Michael D Kinney" <michael.d.kinney@intel.com>]

Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>

> -----Original Message-----
> From: Srinivasan, ManickamX <manickamx.srinivasan@intel.com>
> Sent: Thursday, December 7, 2023 9:37 PM
> To: devel@edk2.groups.io
> Cc: Srinivasan, ManickamX <manickamx.srinivasan@intel.com>; Kinney,
> Michael D <michael.d.kinney@intel.com>; Gao, Liming
> <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com>; T V,
> Krishnamoorthy <krishnamoorthy.t.v@intel.com>
> Subject: [PATCH v3] MdePkg: Add a new memory type definition
> 
> New memory type as defined in UEFI standard v2.10
> 
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> Cc: T V Krishnamoorthy <krishnamoorthy.t.v@intel.com>
> Signed-off-by: ManickamX Srinivasan <manickamx.srinivasan@intel.com>
> ---
>  MdePkg/Include/Uefi/UefiSpec.h | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/MdePkg/Include/Uefi/UefiSpec.h
> b/MdePkg/Include/Uefi/UefiSpec.h
> index 7dfe35b499..d583ee17d0 100644
> --- a/MdePkg/Include/Uefi/UefiSpec.h
> +++ b/MdePkg/Include/Uefi/UefiSpec.h
> @@ -110,6 +110,21 @@ typedef enum {
>  //
>  #define EFI_MEMORY_RUNTIME  0x8000000000000000ULL
> 
> +//
> +// If this flag is set, the memory region is
> +// described with additional ISA-specific memory attributes
> +// as specified in EFI_MEMORY_ISA_MASK.
> +//
> +#define EFI_MEMORY_ISA_VALID 0x4000000000000000ULL
> +
> +//
> +// Defines the bits reserved for describing optional ISA-specific
> cacheability
> +// attributes that are not covered by the standard UEFI Memory
> Attributes cacheability
> +// bits (EFI_MEMORY_UC, EFI_MEMORY_WC, EFI_MEMORY_WT, EFI_MEMORY_WB and
> EFI_MEMORY_UCE).
> +// See Calling Conventions for further ISA-specific enumeration of
> these bits.
> +//
> +#define EFI_MEMORY_ISA_MASK 0x0FFFF00000000000ULL
> +
>  //
>  // Attributes bitmasks, grouped by type
>  //
> --
> 2.30.2.windows.1



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