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authorniruiyu <niruiyu@6f19259b-4bc3-4df7-8a09-765794883524>2011-11-15 01:48:13 +0000
committerniruiyu <niruiyu@6f19259b-4bc3-4df7-8a09-765794883524>2011-11-15 01:48:13 +0000
commitf0d711eb1b73f04ab3be042c984731c0edfe6b28 (patch)
tree29e5ecf4899cce3fc78b14c112bb265bfa5b1efb
parent801401877ea209d07c6b10cc04bc8731383e4645 (diff)
downloadedk2-platforms-f0d711eb1b73f04ab3be042c984731c0edfe6b28.tar.xz
Do not call LocateProtocol when the current TPL is above or equal TPL_NOTIFY.
Signed-off-by: niruiyu Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12696 6f19259b-4bc3-4df7-8a09-765794883524
-rw-r--r--MdeModulePkg/Library/DxeReportStatusCodeLib/ReportStatusCodeLib.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/MdeModulePkg/Library/DxeReportStatusCodeLib/ReportStatusCodeLib.c b/MdeModulePkg/Library/DxeReportStatusCodeLib/ReportStatusCodeLib.c
index ce843cc47f..4ec3a6c8f3 100644
--- a/MdeModulePkg/Library/DxeReportStatusCodeLib/ReportStatusCodeLib.c
+++ b/MdeModulePkg/Library/DxeReportStatusCodeLib/ReportStatusCodeLib.c
@@ -1,7 +1,7 @@
/** @file
Report Status Code Library for DXE Phase.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2011, 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
which accompanies this distribution. The full text of the license may be found at
@@ -45,6 +45,7 @@ InternalGetReportStatusCode (
)
{
EFI_STATUS Status;
+ EFI_TPL Tpl;
if (mReportStatusCodeLibStatusCodeProtocol != NULL) {
return;
@@ -53,10 +54,18 @@ InternalGetReportStatusCode (
//
// Check gBS just in case ReportStatusCode is called before gBS is initialized.
//
- if (gBS != NULL && gBS->LocateProtocol != NULL) {
- Status = gBS->LocateProtocol (&gEfiStatusCodeRuntimeProtocolGuid, NULL, (VOID**) &mReportStatusCodeLibStatusCodeProtocol);
- if (EFI_ERROR (Status)) {
- mReportStatusCodeLibStatusCodeProtocol = NULL;
+ if ((gBS != NULL) && (gBS->LocateProtocol != NULL) && (gBS->RaiseTPL != NULL) && (gBS->RestoreTPL != NULL)) {
+ //
+ // Retrieve the current TPL
+ //
+ Tpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
+ gBS->RestoreTPL (Tpl);
+
+ if (Tpl < TPL_NOTIFY) {
+ Status = gBS->LocateProtocol (&gEfiStatusCodeRuntimeProtocolGuid, NULL, (VOID**) &mReportStatusCodeLibStatusCodeProtocol);
+ if (EFI_ERROR (Status)) {
+ mReportStatusCodeLibStatusCodeProtocol = NULL;
+ }
}
}
}
@@ -496,7 +505,10 @@ ReportStatusCodeEx (
ASSERT (!((ExtendedData == NULL) && (ExtendedDataSize != 0)));
ASSERT (!((ExtendedData != NULL) && (ExtendedDataSize == 0)));
- if (gBS == NULL || gBS->AllocatePool == NULL || gBS->FreePool == NULL) {
+ if ((gBS == NULL) ||
+ (gBS->AllocatePool == NULL) || (gBS->FreePool == NULL) ||
+ (gBS->RaiseTPL == NULL) || (gBS->RestoreTPL == NULL)
+ ) {
return EFI_UNSUPPORTED;
}