diff options
Diffstat (limited to 'Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeDumpMemoryTypeInformation.c')
| -rw-r--r-- | Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeDumpMemoryTypeInformation.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeDumpMemoryTypeInformation.c b/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeDumpMemoryTypeInformation.c new file mode 100644 index 0000000000..b25404a564 --- /dev/null +++ b/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeDumpMemoryTypeInformation.c @@ -0,0 +1,158 @@ +/** @file
+
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <PiDxe.h>
+#include <Library/TestPointCheckLib.h>
+#include <Library/TestPointLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiLib.h>
+#include <Library/HobLib.h>
+
+#include <Guid/MemoryTypeInformation.h>
+
+CHAR8 *
+ShortNameOfMemoryType(
+ IN UINT32 Type
+ );
+
+VOID
+DumpMemoryTypeInfoSummary (
+ IN EFI_MEMORY_TYPE_INFORMATION *CurrentMemoryTypeInformation,
+ IN EFI_MEMORY_TYPE_INFORMATION *PreviousMemoryTypeInformation
+ )
+{
+ UINTN Index;
+ UINTN Index1;
+ EFI_BOOT_MODE BootMode;
+ UINT32 Previous;
+ UINT32 Current;
+ UINT32 Next;
+ BOOLEAN MemoryTypeInformationModified;
+
+ MemoryTypeInformationModified = FALSE;
+ BootMode = GetBootModeHob();
+
+ //
+ // Use a heuristic to adjust the Memory Type Information for the next boot
+ //
+ DEBUG ((DEBUG_INFO, "\n"));
+ DEBUG ((DEBUG_INFO, " (HOB) (ConfTabl) (Var) \n"));
+ DEBUG ((DEBUG_INFO, " Memory Previous Current Next \n"));
+ DEBUG ((DEBUG_INFO, " Type Pages Pages Pages \n"));
+ DEBUG ((DEBUG_INFO, "========== ======== ======== ========\n"));
+
+ for (Index = 0; PreviousMemoryTypeInformation[Index].Type != EfiMaxMemoryType; Index++) {
+
+ for (Index1 = 0; CurrentMemoryTypeInformation[Index1].Type != EfiMaxMemoryType; Index1++) {
+ if (PreviousMemoryTypeInformation[Index].Type == CurrentMemoryTypeInformation[Index1].Type) {
+ break;
+ }
+ }
+ if (CurrentMemoryTypeInformation[Index1].Type == EfiMaxMemoryType) {
+ continue;
+ }
+
+ //
+ // Previous is the number of pages pre-allocated
+ // Current is the number of pages actually needed
+ //
+ Previous = PreviousMemoryTypeInformation[Index].NumberOfPages;
+ Current = CurrentMemoryTypeInformation[Index1].NumberOfPages;
+ Next = Previous;
+
+ //
+ // Inconsistent Memory Reserved across bootings may lead to S4 fail
+ // Write next varible to 125% * current when the pre-allocated memory is:
+ // 1. More than 150% of needed memory and boot mode is BOOT_WITH_DEFAULT_SETTING
+ // 2. Less than the needed memory
+ //
+ if ((Current + (Current >> 1)) < Previous) {
+ if (BootMode == BOOT_WITH_DEFAULT_SETTINGS) {
+ Next = Current + (Current >> 2);
+ }
+ } else if (Current > Previous) {
+ Next = Current + (Current >> 2);
+ }
+ if (Next > 0 && Next < 4) {
+ Next = 4;
+ }
+
+ if (Next != Previous) {
+ PreviousMemoryTypeInformation[Index].NumberOfPages = Next;
+ MemoryTypeInformationModified = TRUE;
+ }
+
+ DEBUG ((DEBUG_INFO, ShortNameOfMemoryType(PreviousMemoryTypeInformation[Index].Type)));
+ DEBUG ((DEBUG_INFO, " %08x %08x %08x\n", Previous, Current, Next));
+ }
+ DEBUG ((DEBUG_INFO, "\n"));
+
+ if (MemoryTypeInformationModified) {
+ DEBUG ((DEBUG_INFO, "MemoryTypeInformation - Modified. RESET Needed!\n"));
+ } else {
+ DEBUG ((DEBUG_INFO, "MemoryTypeInformation - Unmodified.\n"));
+ }
+ DEBUG ((DEBUG_INFO, "\n"));
+}
+
+EFI_STATUS
+TestPointDumpMemoryTypeInformation (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_HOB_GUID_TYPE *GuidHob;
+ VOID *CurrentMemoryTypeInformation;
+ VOID *PreviousMemoryTypeInformation;
+ VOID *VariableMemoryTypeInformation;
+
+ DEBUG ((DEBUG_INFO, "==== TestPointDumpMemoryTypeInformation - Enter\n"));
+ CurrentMemoryTypeInformation = NULL;
+ PreviousMemoryTypeInformation = NULL;
+
+ Status = EfiGetSystemConfigurationTable (&gEfiMemoryTypeInformationGuid, &CurrentMemoryTypeInformation);
+ if (EFI_ERROR(Status)) {
+ goto Done;
+ }
+
+ GuidHob = GetFirstGuidHob (&gEfiMemoryTypeInformationGuid);
+ if (GuidHob != NULL) {
+ PreviousMemoryTypeInformation = GET_GUID_HOB_DATA(GuidHob);
+ } else {
+ Status = EFI_NOT_FOUND;
+ goto Done;
+ }
+
+ GetVariable2 (
+ EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
+ &gEfiMemoryTypeInformationGuid,
+ &VariableMemoryTypeInformation,
+ NULL
+ );
+
+ if ((CurrentMemoryTypeInformation != NULL) && (PreviousMemoryTypeInformation != NULL)) {
+ DumpMemoryTypeInfoSummary(CurrentMemoryTypeInformation, PreviousMemoryTypeInformation);
+ }
+ DEBUG ((DEBUG_INFO, "==== TestPointDumpMemoryTypeInformation - Exit\n"));
+
+Done:
+ if (EFI_ERROR(Status)) {
+ TestPointLibAppendErrorString (
+ PLATFORM_TEST_POINT_ROLE_PLATFORM_IBV,
+ NULL,
+ TEST_POINT_BYTE2_READY_TO_BOOT_ERROR_CODE_2 TEST_POINT_READY_TO_BOOT TEST_POINT_BYTE2_READY_TO_BOOT_ERROR_STRING_2
+ );
+ }
+ return Status;
+}
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