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MdePkg/ProcessorBind: add defines for page allocation granularity

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The UEFI spec differs between architectures in the minimum alignment
and granularity of page allocations that are visible to the OS as
EFI_MEMORY_RUNTIME regions.

So define macros that carry these values to the respective ProcessorBind.h
header files.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
This commit is contained in:
Ard Biesheuvel
2017-03-03 15:11:31 +00:00
parent 627dcba352
commit 08855193ca
6 changed files with 36 additions and 0 deletions
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6
MdePkg/Include/X64/ProcessorBind.h
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@@ -271,6 +271,12 @@ typedef INT64 INTN;
///
#define CPU_STACK_ALIGNMENT 16
///
/// Page allocation granularity for x64
///
#define DEFAULT_PAGE_ALLOCATION_GRANULARITY (0x1000)
#define RUNTIME_PAGE_ALLOCATION_GRANULARITY (0x1000)
//
// Modifier to ensure that all protocol member functions and EFI intrinsics
// use the correct C calling convention. All protocol member functions and