vendorcode: Add VariableFormat.h

Add the EDK2 variable format header in order to access the SPI flash
variable store.

https://github.com/tianocore/edk2/blob/edk2-stable202005/MdeModulePkg/Include/Guid/VariableFormat.h
Commit Hash: 9d510e61fceee7b92955ef9a3c20343752d8ce3f

Change-Id: Ibe44925555a7d1d2361dd48c0325b840bd68e0ca
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61959
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 221 insertions, 0 deletions

diff --git a/src/vendorcode/intel/edk2/UDK2017/MdeModulePkg/Include/Guid/VariableFormat.h b/src/vendorcode/intel/edk2/UDK2017/MdeModulePkg/Include/Guid/VariableFormat.h
new file mode 100644
index 0000000000..9ecf7698ac
--- /dev/null
+++ b/src/vendorcode/intel/edk2/UDK2017/MdeModulePkg/Include/Guid/VariableFormat.h
@@ -0,0 +1,221 @@
+/** @file
+  The variable data structures are related to EDK II-specific implementation of UEFI variables.
+  VariableFormat.h defines variable data headers and variable storage region headers.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __VARIABLE_FORMAT_H__
+#define __VARIABLE_FORMAT_H__
+
+#define EFI_VARIABLE_GUID \
+  { 0xddcf3616, 0x3275, 0x4164, { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d } }
+
+#define EFI_AUTHENTICATED_VARIABLE_GUID \
+  { 0xaaf32c78, 0x947b, 0x439a, { 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 } }
+
+extern EFI_GUID gEfiVariableGuid;
+extern EFI_GUID gEfiAuthenticatedVariableGuid;
+
+///
+/// Alignment of variable name and data, according to the architecture:
+/// * For IA-32 and Intel(R) 64 architectures: 1.
+///
+#define ALIGNMENT         1
+
+//
+// GET_PAD_SIZE calculates the miminal pad bytes needed to make the current pad size satisfy the alignment requirement.
+//
+#if (ALIGNMENT == 1)
+#define GET_PAD_SIZE(a) (0)
+#else
+#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))
+#endif
+
+///
+/// Alignment of Variable Data Header in Variable Store region.
+///
+#define HEADER_ALIGNMENT  4
+#define HEADER_ALIGN(Header)  (((UINTN) (Header) + HEADER_ALIGNMENT - 1) & (~(HEADER_ALIGNMENT - 1)))
+
+///
+/// Status of Variable Store Region.
+///
+typedef enum {
+  EfiRaw,
+  EfiValid,
+  EfiInvalid,
+  EfiUnknown
+} VARIABLE_STORE_STATUS;
+
+#pragma pack(1)
+
+#define VARIABLE_STORE_SIGNATURE  EFI_VARIABLE_GUID
+#define AUTHENTICATED_VARIABLE_STORE_SIGNATURE  EFI_AUTHENTICATED_VARIABLE_GUID
+
+///
+/// Variable Store Header Format and State.
+///
+#define VARIABLE_STORE_FORMATTED          0x5a
+#define VARIABLE_STORE_HEALTHY            0xfe
+
+///
+/// Variable Store region header.
+///
+typedef struct {
+  ///
+  /// Variable store region signature.
+  ///
+  EFI_GUID  Signature;
+  ///
+  /// Size of entire variable store,
+  /// including size of variable store header but not including the size of FvHeader.
+  ///
+  UINT32  Size;
+  ///
+  /// Variable region format state.
+  ///
+  UINT8   Format;
+  ///
+  /// Variable region healthy state.
+  ///
+  UINT8   State;
+  UINT16  Reserved;
+  UINT32  Reserved1;
+} VARIABLE_STORE_HEADER;
+
+///
+/// Variable data start flag.
+///
+#define VARIABLE_DATA                     0x55AA
+
+///
+/// Variable State flags.
+///
+#define VAR_IN_DELETED_TRANSITION     0xfe  ///< Variable is in obsolete transition.
+#define VAR_DELETED                   0xfd  ///< Variable is obsolete.
+#define VAR_HEADER_VALID_ONLY         0x7f  ///< Variable header has been valid.
+#define VAR_ADDED                     0x3f  ///< Variable has been completely added.
+
+///
+/// Variable Attribute combinations.
+///
+#define VARIABLE_ATTRIBUTE_NV_BS        (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)
+#define VARIABLE_ATTRIBUTE_BS_RT        (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)
+#define VARIABLE_ATTRIBUTE_BS_RT_AT     (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
+#define VARIABLE_ATTRIBUTE_NV_BS_RT     (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)
+#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_HARDWARE_ERROR_RECORD)
+#define VARIABLE_ATTRIBUTE_NV_BS_RT_AT  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
+#define VARIABLE_ATTRIBUTE_AT           EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS
+#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR_AT    (VARIABLE_ATTRIBUTE_NV_BS_RT_HR | VARIABLE_ATTRIBUTE_AT)
+///
+/// EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS is deprecated and should be considered as reserved
+///
+#define VARIABLE_ATTRIBUTE_AT_AW        (EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
+#define VARIABLE_ATTRIBUTE_NV_BS_RT_AW  (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
+#define VARIABLE_ATTRIBUTE_NV_BS_RT_HR_AT_AW    (VARIABLE_ATTRIBUTE_NV_BS_RT_HR | VARIABLE_ATTRIBUTE_AT_AW)
+
+///
+/// Single Variable Data Header Structure.
+///
+typedef struct {
+  ///
+  /// Variable Data Start Flag.
+  ///
+  UINT16      StartId;
+  ///
+  /// Variable State defined above.
+  ///
+  UINT8       State;
+  UINT8       Reserved;
+  ///
+  /// Attributes of variable defined in UEFI specification.
+  ///
+  UINT32      Attributes;
+  ///
+  /// Size of variable null-terminated Unicode string name.
+  ///
+  UINT32      NameSize;
+  ///
+  /// Size of the variable data without this header.
+  ///
+  UINT32      DataSize;
+  ///
+  /// A unique identifier for the vendor that produces and consumes this varaible.
+  ///
+  EFI_GUID    VendorGuid;
+} VARIABLE_HEADER;
+
+///
+/// Single Authenticated Variable Data Header Structure.
+///
+typedef struct {
+  ///
+  /// Variable Data Start Flag.
+  ///
+  UINT16      StartId;
+  ///
+  /// Variable State defined above.
+  ///
+  UINT8       State;
+  UINT8       Reserved;
+  ///
+  /// Attributes of variable defined in UEFI specification.
+  ///
+  UINT32      Attributes;
+  ///
+  /// Associated monotonic count value against replay attack.
+  ///
+  UINT64      MonotonicCount;
+  ///
+  /// Associated TimeStamp value against replay attack.
+  ///
+  EFI_TIME    TimeStamp;
+  ///
+  /// Index of associated public key in database.
+  ///
+  UINT32      PubKeyIndex;
+  ///
+  /// Size of variable null-terminated Unicode string name.
+  ///
+  UINT32      NameSize;
+  ///
+  /// Size of the variable data without this header.
+  ///
+  UINT32      DataSize;
+  ///
+  /// A unique identifier for the vendor that produces and consumes this varaible.
+  ///
+  EFI_GUID    VendorGuid;
+} AUTHENTICATED_VARIABLE_HEADER;
+
+typedef struct {
+  EFI_GUID    *Guid;
+  CHAR16      *Name;
+  UINTN       VariableSize;
+} VARIABLE_ENTRY_CONSISTENCY;
+
+#pragma pack()
+
+typedef struct _VARIABLE_INFO_ENTRY  VARIABLE_INFO_ENTRY;
+
+///
+/// This structure contains the variable list that is put in EFI system table.
+/// The variable driver collects all variables that were used at boot service time and produces this list.
+/// This is an optional feature to dump all used variables in shell environment.
+///
+struct _VARIABLE_INFO_ENTRY {
+  VARIABLE_INFO_ENTRY *Next;       ///< Pointer to next entry.
+  EFI_GUID            VendorGuid;  ///< Guid of Variable.
+  CHAR16              *Name;       ///< Name of Variable.
+  UINT32              Attributes;  ///< Attributes of variable defined in UEFI specification.
+  UINT32              ReadCount;   ///< Number of times to read this variable.
+  UINT32              WriteCount;  ///< Number of times to write this variable.
+  UINT32              DeleteCount; ///< Number of times to delete this variable.
+  UINT32              CacheCount;  ///< Number of times that cache hits this variable.
+  BOOLEAN             Volatile;    ///< TRUE if volatile, FALSE if non-volatile.
+};
+
+#endif // _EFI_VARIABLE_H_