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MdeModulePkg: VariableSmmRuntimeDxe: Use MM communicate v3

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As MM cores start to support MM communciate v3. This change moves the
variable driver to use MM communicate v3 if it is available, otherwise the
driver will fallback to v2 to keep the same functionality.

Signed-off-by: Kun Qin <kun.qin@microsoft.com>
This commit is contained in:
Kun Qin
2025-04-20 21:47:37 -07:00
committed by mergify[bot]
parent fdb638fc28
commit 23e1fc6b0b
3 changed files with 208 additions and 75 deletions
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3
MdeModulePkg/Include/Guid/SmmVariableCommon.h
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@@ -81,7 +81,8 @@ typedef struct {
///
/// Size of SMM communicate header, without including the payload.
///
#define SMM_COMMUNICATE_HEADER_SIZE (OFFSET_OF (EFI_MM_COMMUNICATE_HEADER, Data))
#define SMM_COMMUNICATE_HEADER_SIZE (OFFSET_OF (EFI_MM_COMMUNICATE_HEADER, Data))
#define SMM_COMMUNICATE_HEADER_SIZE_V3 (sizeof (EFI_MM_COMMUNICATE_HEADER_V3))
///
/// Size of SMM variable communicate header, without including the payload.