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Allow gEfiMemoryTypeInformation bins to shrink if boot mode is BOOT_WITH_DEFAULT_SETTINGS or the gEfiMemoryTypeInformation variable does not exist.

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Update BdsSetMemoryTypeInformationVariable() to use DEBUG() prints to show the Previous, Current, and Next sizes of each memory bin type.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10580 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
mdkinney 2010-06-14 23:23:58 +00:00
parent 2345e7d4a4
commit a4e9b4f6e3
1 changed files with 27 additions and 6 deletions
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33
IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c
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@ -1124,8 +1124,25 @@ BdsSetMemoryTypeInformationVariable (
UINT32 Current; UINT32 Current;
UINT32 Next; UINT32 Next;
EFI_HOB_GUID_TYPE *GuidHob; EFI_HOB_GUID_TYPE *GuidHob;
BOOLEAN MemoryTypeInformationVariableExists;
UpdateRequired = FALSE; UpdateRequired = TRUE;
MemoryTypeInformationVariableExists = FALSE;
if (GetBootModeHob () != BOOT_WITH_DEFAULT_SETTINGS) {
VariableSize = 0;
Status = gRT->GetVariable (
EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
&gEfiMemoryTypeInformationGuid,
NULL,
&VariableSize,
NULL
);
if (Status == EFI_BUFFER_TOO_SMALL) {
MemoryTypeInformationVariableExists = TRUE;
UpdateRequired = FALSE;
}
}
// //
// Retrieve the current memory usage statistics. If they are not found, then // Retrieve the current memory usage statistics. If they are not found, then
@ -1157,6 +1174,10 @@ BdsSetMemoryTypeInformationVariable (
// //
// Use a heuristic to adjust the Memory Type Information for the next boot // Use a heuristic to adjust the Memory Type Information for the next boot
// //
DEBUG ((EFI_D_INFO, "Memory Previous Current Next \n"));
DEBUG ((EFI_D_INFO, " Type Pages Pages Pages \n"));
DEBUG ((EFI_D_INFO, "====== ======== ======== ========\n"));
for (Index = 0; PreviousMemoryTypeInformation[Index].Type != EfiMaxMemoryType; Index++) { for (Index = 0; PreviousMemoryTypeInformation[Index].Type != EfiMaxMemoryType; Index++) {
Current = 0; Current = 0;
@ -1176,7 +1197,9 @@ BdsSetMemoryTypeInformationVariable (
// //
// Write next varible to 125% * current and Inconsistent Memory Reserved across bootings may lead to S4 fail // Write next varible to 125% * current and Inconsistent Memory Reserved across bootings may lead to S4 fail
// //
if (Current > Previous) { if (!MemoryTypeInformationVariableExists && Current < Previous) {
Next = Current + (Current >> 2);
} else if (Current > Previous) {
Next = Current + (Current >> 2); Next = Current + (Current >> 2);
} else { } else {
Next = Previous; Next = Previous;
@ -1190,12 +1213,13 @@ BdsSetMemoryTypeInformationVariable (
UpdateRequired = TRUE; UpdateRequired = TRUE;
} }
DEBUG ((EFI_D_INFO, " %02x %08x %08x %08x\n", PreviousMemoryTypeInformation[Index].Type, Previous, Current, Next));
} }
// //
// If any changes were made to the Memory Type Information settings, then set the new variable value // If any changes were made to the Memory Type Information settings, then set the new variable value
// //
if (UpdateRequired) { if (UpdateRequired || !MemoryTypeInformationVariableExists) {
Status = gRT->SetVariable ( Status = gRT->SetVariable (
EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME, EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
&gEfiMemoryTypeInformationGuid, &gEfiMemoryTypeInformationGuid,
@ -1204,8 +1228,6 @@ BdsSetMemoryTypeInformationVariable (
PreviousMemoryTypeInformation PreviousMemoryTypeInformation
); );
} }
return;
} }
/** /**
@ -1231,7 +1253,6 @@ BdsLibSaveMemoryTypeInformation (
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR,"Bds Set Memory Type Informationa Variable Fails\n")); DEBUG ((DEBUG_ERROR,"Bds Set Memory Type Informationa Variable Fails\n"));
} }
} }