+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
- \r
- RtMemoryStatusCode.c\r
- \r
-Abstract:\r
-\r
- EFI lib to provide memory journal status code reporting routines.\r
-\r
---*/\r
-\r
-#include "RtMemoryStatusCode.h"\r
-\r
-//\r
-// Global variables\r
-//\r
-PEI_STATUS_CODE_MEMORY_PPI mStatusCodeMemoryPpi = { 0, 0, 0, 0 };\r
-\r
-//\r
-// Function implementations\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-RtMemoryReportStatusCode (\r
- IN EFI_STATUS_CODE_TYPE CodeType,\r
- IN EFI_STATUS_CODE_VALUE Value,\r
- IN UINT32 Instance,\r
- IN EFI_GUID * CallerId,\r
- IN EFI_STATUS_CODE_DATA * Data OPTIONAL\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Log a status code to a memory journal. If no memory journal exists, \r
- we will just return.\r
-\r
-Arguments:\r
-\r
- Same as ReportStatusCode AP\r
- \r
-Returns:\r
-\r
- EFI_SUCCESS This function always returns success\r
-\r
---*/\r
-{\r
- EFI_STATUS_CODE_ENTRY *CurrentEntry;\r
- UINTN MaxEntry;\r
-\r
- //\r
- // We don't care to log debug codes.\r
- //\r
- if ((CodeType & EFI_STATUS_CODE_TYPE_MASK) == EFI_DEBUG_CODE) {\r
- return EFI_SUCCESS;\r
- }\r
- //\r
- // Update the latest entry in the journal.\r
- //\r
- MaxEntry = mStatusCodeMemoryPpi.Length / sizeof (EFI_STATUS_CODE_ENTRY);\r
- if (!MaxEntry) {\r
- //\r
- // If we don't have any entries, then we can return.\r
- // This effectively means that no memory buffer was passed forward from PEI.\r
- //\r
- return EFI_SUCCESS;\r
- }\r
-\r
- CurrentEntry = (EFI_STATUS_CODE_ENTRY *) (UINTN) (mStatusCodeMemoryPpi.Address + (mStatusCodeMemoryPpi.LastEntry * sizeof (EFI_STATUS_CODE_ENTRY)));\r
-\r
- mStatusCodeMemoryPpi.LastEntry = (mStatusCodeMemoryPpi.LastEntry + 1) % MaxEntry;\r
- if (mStatusCodeMemoryPpi.LastEntry == mStatusCodeMemoryPpi.FirstEntry) {\r
- mStatusCodeMemoryPpi.FirstEntry = (mStatusCodeMemoryPpi.FirstEntry + 1) % MaxEntry;\r
- }\r
-\r
- CurrentEntry->Type = CodeType;\r
- CurrentEntry->Value = Value;\r
- CurrentEntry->Instance = Instance;\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-VOID\r
-EFIAPI\r
-RtMemoryInitializeStatusCode (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Initialization routine.\r
- Allocates heap space for storing Status Codes.\r
- Installs a PPI to point to that heap space.\r
- Installs a callback to switch to memory.\r
- Installs a callback to \r
-\r
-Arguments: \r
-\r
- (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)\r
-\r
-Returns: \r
-\r
- None\r
-\r
---*/\r
-{\r
- EFI_STATUS Status;\r
- VOID *HobList;\r
- PEI_STATUS_CODE_MEMORY_PPI **StatusCodeMemoryPpi;\r
-\r
- //\r
- // Locate the HOB that contains the PPI structure for the memory journal\r
- // We don't check for more than one.\r
- //\r
- StatusCodeMemoryPpi = NULL;\r
- EfiLibGetSystemConfigurationTable (\r
- &gEfiHobListGuid,\r
- &HobList\r
- );\r
- Status = GetNextGuidHob (\r
- &HobList,\r
- &gPeiStatusCodeMemoryPpiGuid,\r
- (VOID **) &StatusCodeMemoryPpi,\r
- NULL\r
- );\r
- if (EFI_ERROR (Status) || (StatusCodeMemoryPpi == NULL)) {\r
- return ;\r
- }\r
- //\r
- // Copy data to our structure since the HOB will go away at runtime\r
- //\r
- // BUGBUG: Virtualize for RT\r
- //\r
- mStatusCodeMemoryPpi.FirstEntry = (*StatusCodeMemoryPpi)->FirstEntry;\r
- mStatusCodeMemoryPpi.LastEntry = (*StatusCodeMemoryPpi)->LastEntry;\r
- mStatusCodeMemoryPpi.Address = (*StatusCodeMemoryPpi)->Address;\r
- mStatusCodeMemoryPpi.Length = (*StatusCodeMemoryPpi)->Length;\r
-}\r
-\r
-VOID\r
-EFIAPI\r
-PlaybackStatusCodes (\r
- IN EFI_REPORT_STATUS_CODE ReportStatusCode\r
- )\r
-/*++\r
-\r
-Routine Description:\r
-\r
- Call the input ReportStatusCode function with every status code recorded in\r
- the journal.\r
-\r
-Arguments: \r
-\r
- ReportStatusCode ReportStatusCode function to call.\r
-\r
-Returns: \r
-\r
- None\r
-\r
---*/\r
-{\r
- UINTN MaxEntry;\r
- EFI_STATUS_CODE_ENTRY *CurrentEntry;\r
- UINTN Counter;\r
-\r
- if (ReportStatusCode == RtMemoryReportStatusCode) {\r
- return ;\r
- }\r
- //\r
- // Playback prior status codes to current listeners\r
- //\r
- MaxEntry = mStatusCodeMemoryPpi.Length / sizeof (EFI_STATUS_CODE_ENTRY);\r
- for (Counter = mStatusCodeMemoryPpi.FirstEntry; Counter != mStatusCodeMemoryPpi.LastEntry; Counter++) {\r
- //\r
- // Check if we have to roll back to beginning of queue buffer\r
- //\r
- if (Counter == MaxEntry) {\r
- Counter = 0;\r
- }\r
- //\r
- // Play current entry\r
- //\r
- CurrentEntry = (EFI_STATUS_CODE_ENTRY *) (UINTN) (mStatusCodeMemoryPpi.Address + (Counter * sizeof (EFI_STATUS_CODE_ENTRY)));\r
- ReportStatusCode (\r
- CurrentEntry->Type,\r
- CurrentEntry->Value,\r
- CurrentEntry->Instance,\r
- NULL,\r
- NULL\r
- );\r
- }\r
-}\r
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