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UefiCpuPkg: Simplify InitializeSeparateExceptionStacks

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Hide the Exception implementation details in CpuExcetionHandlerLib and
caller only need to provide buffer

Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>
This commit is contained in:
Liu, Zhiguang
2022-08-09 09:25:35 +08:00
committed by mergify[bot]
parent 1da2012d93
commit 0f7bccf584
11 changed files with 285 additions and 336 deletions
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15
MdeModulePkg/Include/Library/CpuExceptionHandlerLib.h
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@ -104,20 +104,23 @@ InitializeCpuExceptionHandlers (
/**
Setup separate stacks for certain exception handlers.
If the input Buffer and BufferSize are both NULL, use global variable if possible.
InitData is optional and processor arch dependent.
@param[in] InitData Pointer to data optional for information about how
to assign stacks for certain exception handlers.
@param[in] Buffer Point to buffer used to separate exception stack.
@param[in, out] BufferSize On input, it indicates the byte size of Buffer.
If the size is not enough, the return status will
be EFI_BUFFER_TOO_SMALL, and output BufferSize
will be the size it needs.
@retval EFI_SUCCESS The stacks are assigned successfully.
@retval EFI_UNSUPPORTED This function is not supported.
@retval EFI_BUFFER_TOO_SMALL This BufferSize is too small.
**/
EFI_STATUS
EFIAPI
InitializeSeparateExceptionStacks (
IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL
IN VOID *Buffer,
IN OUT UINTN *BufferSize
);
/**