diff options
| -rw-r--r-- | IntelFrameworkModulePkg/Library/PeiReportStatusCodeLib/ReportStatusCodeLib.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/IntelFrameworkModulePkg/Library/PeiReportStatusCodeLib/ReportStatusCodeLib.c b/IntelFrameworkModulePkg/Library/PeiReportStatusCodeLib/ReportStatusCodeLib.c index de1ee10..94a30da 100644 --- a/IntelFrameworkModulePkg/Library/PeiReportStatusCodeLib/ReportStatusCodeLib.c +++ b/IntelFrameworkModulePkg/Library/PeiReportStatusCodeLib/ReportStatusCodeLib.c @@ -260,10 +260,18 @@ ReportStatusCodeExtractDebugInfo ( *ErrorLevel = DebugInfo->ErrorLevel;
//
+ // Here the address returned in Marker is 64-bit aligned.
+ // It must be noticed that EFI_DEBUG_INFO follows EFI_STATUS_CODE_DATA, whose size is
+ // 20 bytes. The size of EFI_DEBUG_INFO is 4 bytes, so we can ensure that Marker
+ // returned is 64-bit aligned.
+ // 64-bit aligned is a must, otherwise retrieving 64-bit parameter from BASE_LIST will
+ // cause unalignment exception.
+ //
+ *Marker = (BASE_LIST) (DebugInfo + 1);
+ //
// The first 12 * UINTN bytes of the string are really an
// argument stack to support varargs on the Format string.
//
- *Marker = (BASE_LIST) (DebugInfo + 1);
*Format = (CHAR8 *)(((UINT64 *)*Marker) + 12);
return TRUE;
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