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1. Update PiSmmCore to always invoke SmiManage (NULL, NULL, NULL, NULL) when SMI triggered.

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2. Fix issue that PlatformHookAfterSmiDispatch() and PERF_END() are not called in the case mInLegacyBoot is TRUE.

signed-off-by: Jeff Fan <jeff.fan@intel.com>
reviewed-by: Kinney, Michael D <michael.d.kinney@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13740 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2012-09-25 02:44:53 +00:00
parent 565b3c807c
commit 9fa90bb491
1 changed files with 38 additions and 39 deletions
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77
MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
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@ -261,49 +261,43 @@ SmmEntryPoint (
// //
// If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed // If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed
// //
if (mInLegacyBoot) { if (!mInLegacyBoot) {
// //
// Asynchronous SMI // Mark the InSmm flag as TRUE, it will be used by SmmBase2 protocol
// //
SmiManage (NULL, NULL, NULL, NULL); gSmmCorePrivate->InSmm = TRUE;
return;
//
// Check to see if this is a Synchronous SMI sent through the SMM Communication
// Protocol or an Asynchronous SMI
//
if (gSmmCorePrivate->CommunicationBuffer != NULL) {
//
// Synchronous SMI for SMM Core or request from Communicate protocol
//
CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)gSmmCorePrivate->CommunicationBuffer;
gSmmCorePrivate->BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
Status = SmiManage (
&CommunicateHeader->HeaderGuid,
NULL,
CommunicateHeader->Data,
&gSmmCorePrivate->BufferSize
);
//
// Update CommunicationBuffer, BufferSize and ReturnStatus
// Communicate service finished, reset the pointer to CommBuffer to NULL
//
gSmmCorePrivate->BufferSize += OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
gSmmCorePrivate->CommunicationBuffer = NULL;
gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;
}
} }
// //
// Mark the InSmm flag as TRUE, it will be used by SmmBase2 protocol // Process Asynchronous SMI sources
// //
gSmmCorePrivate->InSmm = TRUE; SmiManage (NULL, NULL, NULL, NULL);
//
// Check to see if this is a Synchronous SMI sent through the SMM Communication
// Protocol or an Asynchronous SMI
//
if (gSmmCorePrivate->CommunicationBuffer != NULL) {
//
// Synchronous SMI for SMM Core or request from Communicate protocol
//
CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)gSmmCorePrivate->CommunicationBuffer;
gSmmCorePrivate->BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
Status = SmiManage (
&CommunicateHeader->HeaderGuid,
NULL,
CommunicateHeader->Data,
&gSmmCorePrivate->BufferSize
);
//
// Update CommunicationBuffer, BufferSize and ReturnStatus
// Communicate service finished, reset the pointer to CommBuffer to NULL
//
gSmmCorePrivate->BufferSize += OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);
gSmmCorePrivate->CommunicationBuffer = NULL;
gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;
} else {
//
// Asynchronous SMI
//
SmiManage (NULL, NULL, NULL, NULL);
}
// //
// Call platform hook after Smm Dispatch // Call platform hook after Smm Dispatch
@ -311,9 +305,14 @@ SmmEntryPoint (
PlatformHookAfterSmmDispatch (); PlatformHookAfterSmmDispatch ();
// //
// Clear the InSmm flag as we are going to leave SMM // If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed
// //
gSmmCorePrivate->InSmm = FALSE; if (!mInLegacyBoot) {
//
// Clear the InSmm flag as we are going to leave SMM
//
gSmmCorePrivate->InSmm = FALSE;
}
PERF_END (NULL, "SMM", NULL, 0) ; PERF_END (NULL, "SMM", NULL, 0) ;
} }