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Ensure there is only one instance of Status Code PPI in system. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9747 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24 2010-01-14 07:23:10 +00:00
parent 18207db786
commit e986760617
1 changed files with 33 additions and 6 deletions
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35
MdeModulePkg/Universal/ReportStatusCodeRouter/Pei/ReportStatusCodeRouterPei.c
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@ -1,7 +1,7 @@
/** @file
Report Status Code Router PEIM which produces Report Stataus Code Handler PPI and Status Code PPI.
Copyright (c) 2009, Intel Corporation
Copyright (c) 2009 - 2010, Intel Corporation
All rights reserved. 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
@ -23,12 +23,15 @@ EFI_PEI_PROGRESS_CODE_PPI mStatusCodePpi = {
ReportDispatcher
};
EFI_PEI_PPI_DESCRIPTOR mStatusCodePpiList[] = {
EFI_PEI_PPI_DESCRIPTOR mRscHandlerPpiList[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&gEfiPeiRscHandlerPpiGuid,
&mRscHandlerPpi
},
}
};
EFI_PEI_PPI_DESCRIPTOR mStatusCodePpiList[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&gEfiPeiStatusCodePpiGuid,
@ -258,10 +261,34 @@ GenericStatusCodePeiEntry (
)
{
EFI_STATUS Status;
EFI_PEI_PPI_DESCRIPTOR *OldDescriptor;
EFI_PEI_PROGRESS_CODE_PPI *OldStatusCodePpi;
CreateRscHandlerCallbackPacket ();
//
// Install Report Status Code Handler PPI
//
Status = PeiServicesInstallPpi (mRscHandlerPpiList);
ASSERT_EFI_ERROR (Status);
//
// Install Status Code PPI. PI spec specifies that there can be only one instance
// of this PPI in system. So first check if other instance already exists.
// If no other instance exists, then just install the PPI.
// If other instance already exists, then reinstall it.
//
Status = PeiServicesLocatePpi (
&gEfiPeiStatusCodePpiGuid,
0,
&OldDescriptor,
(VOID **) &OldStatusCodePpi
);
if (!EFI_ERROR (Status)) {
Status = PeiServicesReInstallPpi (OldDescriptor, mStatusCodePpiList);
} else {
Status = PeiServicesInstallPpi (mStatusCodePpiList);
}
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;