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MdeModulePkg/PiSmmCore: Install Protocol when S3 resume finished. 

Install EdkiiSmmEndOfS3ResumeProtocol when S3 resume finished.
S3ResumePei will send S3 resume finished event to SmmCore through
communication buffer.

V2 change:
 None.

V3 change:
1. Uninstall the protocol right after install it to avoid run out of memory.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Eric Dong 2017-10-11 09:29:52 +08:00
parent 18b13fabfa
commit d76c2da8d5
3 changed files with 87 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
View File

@ -81,6 +81,7 @@ SMM_CORE_SMI_HANDLERS mSmmCoreSmiHandlers[] = {
{ SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },
{ SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },
{ SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, TRUE },
{ SmmEndOfS3ResumeHandler, &gEdkiiSmmEndOfS3ResumeProtocolGuid, NULL, FALSE },
{ NULL, NULL, NULL, FALSE }
};
@ -382,6 +383,60 @@ SmmEndOfDxeHandler (
return Status;
}
/**
Software SMI handler that is called when the EndOfS3Resume event is trigged.
This function installs the SMM EndOfS3Resume Protocol so SMM Drivers are informed that
S3 resume has finished.
@param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
@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-SMM environment into an SMM environment.
@param CommBufferSize The size of the CommBuffer.
@return Status Code
**/
EFI_STATUS
EFIAPI
SmmEndOfS3ResumeHandler (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context, OPTIONAL
IN OUT VOID *CommBuffer, OPTIONAL
IN OUT UINTN *CommBufferSize OPTIONAL
)
{
EFI_STATUS Status;
EFI_HANDLE SmmHandle;
DEBUG ((EFI_D_INFO, "SmmEndOfS3ResumeHandler\n"));
//
// Install SMM EndOfS3Resume protocol
//
SmmHandle = NULL;
Status = SmmInstallProtocolInterface (
&SmmHandle,
&gEdkiiSmmEndOfS3ResumeProtocolGuid,
EFI_NATIVE_INTERFACE,
NULL
);
ASSERT_EFI_ERROR (Status);
//
// Uninstall the protocol here because the comsume just hook the
// installation event.
//
Status = SmmUninstallProtocolInterface (
SmmHandle,
&gEdkiiSmmEndOfS3ResumeProtocolGuid,
NULL
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Determine if two buffers overlap in memory.

24
MdeModulePkg/Core/PiSmmCore/PiSmmCore.h
View File

@ -32,6 +32,7 @@
#include <Protocol/SmmExitBootServices.h>
#include <Protocol/SmmLegacyBoot.h>
#include <Protocol/SmmReadyToBoot.h>
#include <Protocol/SmmEndOfS3Resume.h>
#include <Guid/Apriori.h>
#include <Guid/EventGroup.h>
@ -801,6 +802,29 @@ SmmReadyToBootHandler (
IN OUT UINTN *CommBufferSize OPTIONAL
);
/**
Software SMI handler that is called when the EndOfS3Resume event is trigged.
This function installs the SMM EndOfS3Resume Protocol so SMM Drivers are informed that
S3 resume has finished.
@param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().
@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-SMM environment into an SMM environment.
@param CommBufferSize The size of the CommBuffer.
@return Status Code
**/
EFI_STATUS
EFIAPI
SmmEndOfS3ResumeHandler (
IN EFI_HANDLE DispatchHandle,
IN CONST VOID *Context, OPTIONAL
IN OUT VOID *CommBuffer, OPTIONAL
IN OUT UINTN *CommBufferSize OPTIONAL
);
/**
Place holder function until all the SMM System Table Service are available.

1
MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
View File

@ -79,6 +79,7 @@
gEdkiiSmmExitBootServicesProtocolGuid ## SOMETIMES_PRODUCES
gEdkiiSmmLegacyBootProtocolGuid ## SOMETIMES_PRODUCES
gEdkiiSmmReadyToBootProtocolGuid ## PRODUCES
gEdkiiSmmEndOfS3ResumeProtocolGuid ## SOMETIMES_PRODUCES
gEfiSmmSwDispatch2ProtocolGuid ## SOMETIMES_CONSUMES
gEfiSmmSxDispatch2ProtocolGuid ## SOMETIMES_CONSUMES