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StandaloneMmPkg/Core: Install protocol to notify MmEndOfPei event 

When the EndOfPei event is signaled, installs the MM EndOfPei Protocol
so MM Drivers are informed that EndOfPei event is signaled.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
This commit is contained in:
Wei6 Xu 2024-05-14 10:20:06 +08:00 committed by mergify[bot]
parent c8df60801f
commit b7931cafea
3 changed files with 65 additions and 0 deletions
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41
StandaloneMmPkg/Core/StandaloneMmCore.c
View File

@ -76,6 +76,7 @@ EFI_MM_SYSTEM_TABLE gMmCoreMmst = {
MM_CORE_MMI_HANDLERS mMmCoreMmiHandlers[] = {
{ MmDriverDispatchHandler, &gEventMmDispatchGuid, NULL, FALSE },
{ MmReadyToLockHandler, &gEfiDxeMmReadyToLockProtocolGuid, NULL, TRUE },
{ MmEndOfPeiHandler, &gEfiMmEndOfPeiProtocol, NULL, FALSE },
{ MmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, FALSE },
{ MmExitBootServiceHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },
{ MmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },
@ -274,6 +275,46 @@ MmReadyToLockHandler (
return Status;
}
/**
Software MMI handler that is called when the EndOfPei event is signaled.
This function installs the MM EndOfPei Protocol so MM Drivers are informed that
EndOfPei event is signaled.
@param DispatchHandle The unique handle assigned to this handler by MmiHandlerRegister().
@param Context Points to an optional handler context which was specified when the handler was registered.
@param CommBuffer A pointer to a collection of data in memory that will
be conveyed from a non-MM environment into an MM environment.
@param CommBufferSize The size of the CommBuffer.
@return Status Code
**/
EFI_STATUS
EFIAPI
MmEndOfPeiHandler (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context OPTIONAL,
IN OUT VOID *CommBuffer OPTIONAL,
IN OUT UINTN *CommBufferSize OPTIONAL
)
{
EFI_STATUS Status;
EFI_HANDLE MmHandle;
DEBUG ((DEBUG_INFO, "MmEndOfPeiHandler\n"));
//
// Install MM EndOfDxe protocol
//
MmHandle = NULL;
Status = MmInstallProtocolInterface (
&MmHandle,
&gEfiMmEndOfPeiProtocol,
EFI_NATIVE_INTERFACE,
NULL
);
return Status;
}
/**
Software MMI handler that is called when the EndOfDxe event is signaled.
This function installs the MM EndOfDxe Protocol so MM Drivers are informed that

23
StandaloneMmPkg/Core/StandaloneMmCore.h
View File

@ -683,6 +683,29 @@ MmReadyToLockHandler (
IN OUT UINTN *CommBufferSize OPTIONAL
);
/**
Software MMI handler that is called when the EndOfPei event is signaled.
This function installs the MM EndOfPei Protocol so MM Drivers are informed that
EndOfPei event is signaled.
@param DispatchHandle The unique handle assigned to this handler by MmiHandlerRegister().
@param Context Points to an optional handler context which was specified when the handler was registered.
@param CommBuffer A pointer to a collection of data in memory that will
be conveyed from a non-MM environment into an MM environment.
@param CommBufferSize The size of the CommBuffer.
@return Status Code
**/
EFI_STATUS
EFIAPI
MmEndOfPeiHandler (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context OPTIONAL,
IN OUT VOID *CommBuffer OPTIONAL,
IN OUT UINTN *CommBufferSize OPTIONAL
);
/**
This function is the main entry point for an MM handler dispatch
or communicate-based callback.

1
StandaloneMmPkg/Core/StandaloneMmCore.inf
View File

@ -60,6 +60,7 @@
gEfiMmEndOfDxeProtocolGuid ## PRODUCES
gEfiLoadedImageProtocolGuid ## PRODUCES
gEfiMmConfigurationProtocolGuid ## CONSUMES
gEfiMmEndOfPeiProtocol ## PRODUCES
[Guids]
gAprioriGuid ## SOMETIMES_CONSUMES ## File