tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

UefiCpuPkg CpuExceptionHandlerLib: Enhance DumpModuleImageInfo() 

Enhance DumpModuleImageInfo() for page fault with I/D set.

If it is page fault with I/D set, the (E/R)IP in SystemContext
could not be used for DumpModuleImageInfo(), instead of, the next
IP of the IP triggering this page fault could be found from stack
by (E/R)SP in SystemContext.

IA32 SDM:
— I/D flag (bit 4).
This flag is 1 if the access causing the page-fault exception was
an instruction fetch. This flag describes the access causing the
page-fault exception, not the access rights specified by paging.

The idea comes from SmiPFHandler () in
UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/PageTbl.c and
UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Star Zeng 2017-12-27 17:24:04 +08:00
parent 7dbc50bd24
commit bb207f6cda
3 changed files with 22 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
UefiCpuPkg/Library/CpuExceptionHandlerLib/CpuExceptionCommon.c
View File

@ -1,7 +1,7 @@
/** @file /** @file
CPU Exception Handler Library common functions. CPU Exception Handler Library common functions.
Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR> Copyright (c) 2012 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at which accompanies this distribution. The full text of the license may be found at
@ -131,7 +131,7 @@ DumpModuleImageInfo (
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
EntryPoint = NULL; EntryPoint = NULL;
} }
InternalPrintMessage ("!!!! Find image "); InternalPrintMessage ("!!!! Find image based on IP(0x%x) ", CurrentEip);
PdbPointer = PeCoffLoaderGetPdbPointer ((VOID *) Pe32Data); PdbPointer = PeCoffLoaderGetPdbPointer ((VOID *) Pe32Data);
if (PdbPointer != NULL) { if (PdbPointer != NULL) {
InternalPrintMessage ("%a", PdbPointer); InternalPrintMessage ("%a", PdbPointer);

11
UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/ArchExceptionHandler.c
View File

@ -414,5 +414,14 @@ DumpImageAndCpuContent (
// //
// Dump module image base and module entry point by EIP // Dump module image base and module entry point by EIP
// //
DumpModuleImageInfo (SystemContext.SystemContextIa32->Eip); if ((ExceptionType == EXCEPT_IA32_PAGE_FAULT) &&
((SystemContext.SystemContextIa32->ExceptionData & IA32_PF_EC_ID) != 0)) {
//
// The EIP in SystemContext could not be used
// if it is page fault with I/D set.
//
DumpModuleImageInfo ((*(UINTN *)(UINTN)SystemContext.SystemContextIa32->Esp));
} else {
DumpModuleImageInfo (SystemContext.SystemContextIa32->Eip);
}
} }

11
UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ArchExceptionHandler.c
View File

@ -414,5 +414,14 @@ DumpImageAndCpuContent (
// //
// Dump module image base and module entry point by RIP // Dump module image base and module entry point by RIP
// //
DumpModuleImageInfo (SystemContext.SystemContextX64->Rip); if ((ExceptionType == EXCEPT_IA32_PAGE_FAULT) &&
((SystemContext.SystemContextX64->ExceptionData & IA32_PF_EC_ID) != 0)) {
//
// The RIP in SystemContext could not be used
// if it is page fault with I/D set.
//
DumpModuleImageInfo ((*(UINTN *)(UINTN)SystemContext.SystemContextX64->Rsp));
} else {
DumpModuleImageInfo (SystemContext.SystemContextX64->Rip);
}
} }