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Simplify the SmmPeriodicSmiLib to call AllocatePool() for every entry in the SMI periodic handler list. 

Signed-off-by: niruiyu
Reviewed-by: mdkinney

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12173 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niruiyu 2011-08-19 01:37:47 +00:00
parent ca8afbca68
commit 3e5cfe98e9
1 changed files with 11 additions and 43 deletions
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54
MdePkg/Library/SmmPeriodicSmiLib/SmmPeriodicSmiLib.c
View File

@ -315,8 +315,6 @@ ReclaimPeriodicSmiLibraryHandler (
PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT *PeriodicSmiLibraryHandler
)
{
LIST_ENTRY *Link;
ASSERT (PeriodicSmiLibraryHandler->DispatchHandle == NULL);
if (PeriodicSmiLibraryHandler->Stack != NULL) {
FreePages (
@ -326,18 +324,7 @@ ReclaimPeriodicSmiLibraryHandler (
PeriodicSmiLibraryHandler->Stack = NULL;
}
RemoveEntryList (&PeriodicSmiLibraryHandler->Link);
//
// Insert to gFreePeriodicSmiLibraryHandlers in the reverse order of the address of PeriodicSmiLibraryHandler
//
for ( Link = GetFirstNode (&gFreePeriodicSmiLibraryHandlers)
; !IsNull (&gFreePeriodicSmiLibraryHandlers, Link)
; Link = GetNextNode (&gFreePeriodicSmiLibraryHandlers, Link)
) {
if (Link < &PeriodicSmiLibraryHandler->Link) {
break;
}
}
InsertTailList (Link, &PeriodicSmiLibraryHandler->Link);
InsertHeadList (&gFreePeriodicSmiLibraryHandlers, &PeriodicSmiLibraryHandler->Link);
}
/**
@ -354,30 +341,21 @@ EnlargeFreePeriodicSmiLibraryHandlerList (
)
{
UINTN Index;
PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT *PeriodicSmiLibraryHandlers;
PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT *PeriodicSmiLibraryHandler;
//
// The function is assumed to be called only when the list of free periodic SMI library
// handlers is empty.
//
ASSERT (IsListEmpty (&gFreePeriodicSmiLibraryHandlers));
PeriodicSmiLibraryHandlers = AllocatePool (
PERIODIC_SMI_LIBRARY_ALLOCATE_SIZE * sizeof (PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT)
);
if (PeriodicSmiLibraryHandlers == NULL) {
return FALSE;
}
//
// Add the entries to the list in the reverse order of the their memory address
// Add the entries to the list
//
for (Index = 0; Index < PERIODIC_SMI_LIBRARY_ALLOCATE_SIZE; Index++) {
PeriodicSmiLibraryHandlers[Index].Signature = PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT_SIGNATURE;
InsertHeadList (&gFreePeriodicSmiLibraryHandlers, &PeriodicSmiLibraryHandlers[Index].Link);
PeriodicSmiLibraryHandler = AllocatePool (sizeof (PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT));
if (PeriodicSmiLibraryHandler == NULL) {
break;
}
PeriodicSmiLibraryHandler->Signature = PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT_SIGNATURE;
InsertHeadList (&gFreePeriodicSmiLibraryHandlers, &PeriodicSmiLibraryHandler->Link);
}
return TRUE;
return (BOOLEAN) (Index > 0);
}
/**
@ -1175,7 +1153,6 @@ SmmPeriodicSmiLibDestructor (
{
LIST_ENTRY *Link;
PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT *PeriodicSmiLibraryHandler;
UINTN Index;
//
// Free the table of supported periodic SMI tick rates
@ -1196,19 +1173,10 @@ SmmPeriodicSmiLibDestructor (
//
// Free all the periodic SMI handler entries
//
Index = 0;
for (Link = GetFirstNode (&gFreePeriodicSmiLibraryHandlers); !IsNull (&gFreePeriodicSmiLibraryHandlers, Link);) {
PeriodicSmiLibraryHandler = PERIODIC_SMI_LIBRARY_HANDLER_CONTEXT_FROM_LINK (Link);
Link = RemoveEntryList (Link);
Index++;
//
// Because the entries in the list are in the reverse order of the address of PeriodicSmiLibraryHandler and
// every PERIODIC_SMI_LIBRARY_ALLOCATE_SIZE entries are in the same pool returned by AllocatePool(),
// every PERIODIC_SMI_LIBRARY_ALLOCATE_SIZE'th entry is the header of allocated pool.
//
if ((Index % PERIODIC_SMI_LIBRARY_ALLOCATE_SIZE) == 0) {
FreePool (PeriodicSmiLibraryHandler);
}
FreePool (PeriodicSmiLibraryHandler);
}
return EFI_SUCCESS;