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Last change
on this file since 80820 was 80721, checked in by vboxsync, 5 years ago |
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Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
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Property svn:eol-style
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File size:
986 bytes
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| 1 | /** @file
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| 2 |
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| 3 | The protocol provides support to allocate, free, map and umap a DMA buffer
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| 4 | for bus master (e.g PciHostBridge). When SEV is enabled, the DMA operations
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| 5 | must be performed on unencrypted buffer hence protocol clear the encryption
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| 6 | bit from the DMA buffer.
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| 7 |
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| 8 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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| 9 | Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
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| 10 | (C) Copyright 2017 Hewlett Packard Enterprise Development LP<BR>
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| 11 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 12 |
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| 13 | **/
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| 14 |
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| 15 | #ifndef _AMD_SEV_IOMMU_H_
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| 16 | #define _AMD_SEV_IOMMU_H_
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| 17 |
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| 18 | #include <Protocol/IoMmu.h>
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| 19 |
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| 20 | #include <Library/BaseLib.h>
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| 21 | #include <Library/BaseMemoryLib.h>
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| 22 | #include <Library/DebugLib.h>
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| 23 | #include <Library/MemEncryptSevLib.h>
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| 24 | #include <Library/MemoryAllocationLib.h>
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| 25 | #include <Library/UefiBootServicesTableLib.h>
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| 26 |
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| 27 | /**
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| 28 | Install IOMMU protocol to provide the DMA support for PciHostBridge and
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| 29 | MemEncryptSevLib.
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| 30 |
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| 31 | **/
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| 32 | EFI_STATUS
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| 33 | EFIAPI
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| 34 | AmdSevInstallIoMmuProtocol (
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| 35 | VOID
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| 36 | );
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| 37 |
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| 38 | #endif
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