| 1 | /** @file -- VarCheckPolicyMmiCommon.h
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| 2 | This header contains communication definitions that are shared between DXE
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| 3 | and the MM component of VarCheckPolicy.
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| 4 |
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| 5 | Copyright (c) Microsoft Corporation.
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 | **/
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| 8 |
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| 9 | #ifndef _VAR_CHECK_POLICY_MMI_COMMON_H_
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| 10 | #define _VAR_CHECK_POLICY_MMI_COMMON_H_
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| 11 |
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| 12 | #define VAR_CHECK_POLICY_COMM_SIG SIGNATURE_32('V', 'C', 'P', 'C')
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| 13 | #define VAR_CHECK_POLICY_COMM_REVISION 1
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| 14 |
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| 15 | #pragma pack(push, 1)
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| 16 |
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| 17 | typedef struct _VAR_CHECK_POLICY_COMM_HEADER {
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| 18 | UINT32 Signature;
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| 19 | UINT32 Revision;
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| 20 | UINT32 Command;
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| 21 | EFI_STATUS Result;
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| 22 | } VAR_CHECK_POLICY_COMM_HEADER;
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| 23 |
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| 24 | typedef struct _VAR_CHECK_POLICY_COMM_IS_ENABLED_PARAMS {
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| 25 | BOOLEAN State;
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| 26 | } VAR_CHECK_POLICY_COMM_IS_ENABLED_PARAMS;
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| 27 |
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| 28 | typedef struct _VAR_CHECK_POLICY_COMM_DUMP_PARAMS {
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| 29 | UINT32 PageRequested;
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| 30 | UINT32 TotalSize;
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| 31 | UINT32 PageSize;
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| 32 | BOOLEAN HasMore;
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| 33 | } VAR_CHECK_POLICY_COMM_DUMP_PARAMS;
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| 34 |
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| 35 | #pragma pack(pop)
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| 36 |
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| 37 | // Make sure that we will hold at least the headers.
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| 38 | #define VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE MAX((OFFSET_OF(EFI_MM_COMMUNICATE_HEADER, Data) + sizeof (VAR_CHECK_POLICY_COMM_HEADER) + EFI_PAGES_TO_SIZE(1)), EFI_PAGES_TO_SIZE(4))
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| 39 | #define VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE (VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE - \
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| 40 | (OFFSET_OF(EFI_MM_COMMUNICATE_HEADER, Data) + \
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| 41 | sizeof(VAR_CHECK_POLICY_COMM_HEADER) + \
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| 42 | sizeof(VAR_CHECK_POLICY_COMM_DUMP_PARAMS)))
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| 43 | STATIC_ASSERT (
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| 44 | VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE < VAR_CHECK_POLICY_MM_COMM_BUFFER_SIZE,
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| 45 | "an integer underflow may have occurred calculating VAR_CHECK_POLICY_MM_DUMP_BUFFER_SIZE"
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| 46 | );
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| 47 |
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| 48 | #define VAR_CHECK_POLICY_COMMAND_DISABLE 0x0001
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| 49 | #define VAR_CHECK_POLICY_COMMAND_IS_ENABLED 0x0002
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| 50 | #define VAR_CHECK_POLICY_COMMAND_REGISTER 0x0003
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| 51 | #define VAR_CHECK_POLICY_COMMAND_DUMP 0x0004
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| 52 | #define VAR_CHECK_POLICY_COMMAND_LOCK 0x0005
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| 53 |
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| 54 | #endif // _VAR_CHECK_POLICY_MMI_COMMON_H_
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