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As variable area is not reliable in recovery path, then we should not produce ReadonlyVariable2&ReadonlyVariable ppi at the point. This way causes other Pei module wanted to access to variable will fail

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7185 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
eric_tian 2009-01-05 09:53:54 +00:00
parent 0d401d4d9c
commit f2fa830ef0
1 changed files with 19 additions and 6 deletions
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25
IntelFrameworkModulePkg/Universal/VariablePei/Variable.c
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@ -47,11 +47,12 @@ EFI_GUID mEfiVariableIndexTableGuid = EFI_VARIABLE_INDEX_TABLE_GUID;
/** /**
Provide the functionality of the variable services. Provide the functionality of the variable services.
@param FileHandle Handle of the file being invoked. @param FileHandle Handle of the file being invoked.
@param PeiServices Describes the list of possible PEI Services. @param PeiServices Describes the list of possible PEI Services.
@return Status - EFI_SUCCESS if the interface could be successfully @return EFI_SUCCESS If the interface could be successfully installed.
installed @return EFI_UNSUPPORTED If current boot path is in recovery mode, then does not
install this interface.
**/ **/
EFI_STATUS EFI_STATUS
@ -61,9 +62,21 @@ PeimInitializeVariableServices (
IN CONST EFI_PEI_SERVICES **PeiServices IN CONST EFI_PEI_SERVICES **PeiServices
) )
{ {
EFI_BOOT_MODE BootMode;
EFI_STATUS Status;
// //
// Publish the variable capability to other modules // Check if this is recovery boot path. If no, publish the variable access capability
// // to other modules. If yes, the content of variable area is not reliable. Therefore,
// in this case we should not provide variable service to other pei modules.
//
Status = (*PeiServices)->GetBootMode (PeiServices, &BootMode);
ASSERT_EFI_ERROR (Status);
if (BootMode == BOOT_IN_RECOVERY_MODE) {
return EFI_UNSUPPORTED;
}
return (**PeiServices).InstallPpi (PeiServices, &mPpiListVariable[0]); return (**PeiServices).InstallPpi (PeiServices, &mPpiListVariable[0]);
} }