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MdeModulePkg Variable: Implement variable quota management.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16669 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng
2015-01-27 08:42:47 +00:00
committed by lzeng14
parent 4139580d31
commit 4edb18663f
10 changed files with 655 additions and 144 deletions
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68
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.h
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@@ -42,6 +42,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Guid/SystemNvDataGuid.h>
#include <Guid/FaultTolerantWrite.h>
#include <Guid/HardwareErrorVariable.h>
#include <Guid/VarErrorFlag.h>
#define VARIABLE_ATTRIBUTE_BS_RT (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)
#define VARIABLE_ATTRIBUTE_NV_BS_RT (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)
@@ -85,7 +86,11 @@ typedef struct {
VARIABLE_GLOBAL VariableGlobal;
UINTN VolatileLastVariableOffset;
UINTN NonVolatileLastVariableOffset;
UINTN CommonVariableSpace;
UINTN CommonMaxUserVariableSpace;
UINTN CommonRuntimeVariableSpace;
UINTN CommonVariableTotalSize;
UINTN CommonUserVariableTotalSize;
UINTN HwErrVariableTotalSize;
CHAR8 *PlatformLangCodes;
CHAR8 *LangCodes;
@@ -360,6 +365,41 @@ GetFvbInfoByAddress (
OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvbProtocol OPTIONAL
);
/**
Finds variable in storage blocks of volatile and non-volatile storage areas.
This code finds variable in storage blocks of volatile and non-volatile storage areas.
If VariableName is an empty string, then we just return the first
qualified variable without comparing VariableName and VendorGuid.
If IgnoreRtCheck is TRUE, then we ignore the EFI_VARIABLE_RUNTIME_ACCESS attribute check
at runtime when searching existing variable, only VariableName and VendorGuid are compared.
Otherwise, variables without EFI_VARIABLE_RUNTIME_ACCESS are not visible at runtime.
@param VariableName Name of the variable to be found.
@param VendorGuid Vendor GUID to be found.
@param PtrTrack VARIABLE_POINTER_TRACK structure for output,
including the range searched and the target position.
@param Global Pointer to VARIABLE_GLOBAL structure, including
base of volatile variable storage area, base of
NV variable storage area, and a lock.
@param IgnoreRtCheck Ignore EFI_VARIABLE_RUNTIME_ACCESS attribute
check at runtime when searching variable.
@retval EFI_INVALID_PARAMETER If VariableName is not an empty string, while
VendorGuid is NULL.
@retval EFI_SUCCESS Variable successfully found.
@retval EFI_NOT_FOUND Variable not found
**/
EFI_STATUS
FindVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT VARIABLE_POINTER_TRACK *PtrTrack,
IN VARIABLE_GLOBAL *Global,
IN BOOLEAN IgnoreRtCheck
);
/**
This code finds variable in storage blocks (Volatile or Non-Volatile).
@@ -615,6 +655,25 @@ VarCheckVariablePropertySet (
IN VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
);
/**
Internal variable property get.
@param[in] Name Pointer to the variable name.
@param[in] Guid Pointer to the vendor GUID.
@param[out] VariableProperty Pointer to the output variable property.
@retval EFI_SUCCESS The property of variable specified by the Name and Guid was got successfully.
@retval EFI_NOT_FOUND The property of variable specified by the Name and Guid was not found.
**/
EFI_STATUS
EFIAPI
InternalVarCheckVariablePropertyGet (
IN CHAR16 *Name,
IN EFI_GUID *Guid,
OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
);
/**
Variable property get.
@@ -635,6 +694,15 @@ VarCheckVariablePropertyGet (
OUT VAR_CHECK_VARIABLE_PROPERTY *VariableProperty
);
/**
Initialize variable quota.
**/
VOID
InitializeVariableQuota (
VOID
);
extern VARIABLE_MODULE_GLOBAL *mVariableModuleGlobal;
#endif