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09f01d4efb
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4171 IoMmuDxe once was designed to support DMA operation when SEV is enabled. After TDX is enabled in IoMmuDxe, some files' name in IoMmuDxe need to be more general. So this patch rename: AmdSevIoMmu.h -> CcIoMmu.h AmdSevIoMmu.c -> CcIoMmu.c Accordingly there are some udates in IoMmuDxe.c and IoMmuDxe.inf. Cc: Erdem Aktas <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com> Signed-off-by: Min Xu <min.m.xu@intel.com> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/** @file
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The protocol provides support to allocate, free, map and umap a DMA buffer
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for bus master (e.g PciHostBridge). When SEV is enabled, the DMA operations
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must be performed on unencrypted buffer hence protocol clear the encryption
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bit from the DMA buffer.
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
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(C) Copyright 2017 Hewlett Packard Enterprise Development LP<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _AMD_SEV_IOMMU_H_
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#define _AMD_SEV_IOMMU_H_
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#include <Protocol/IoMmu.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemEncryptSevLib.h>
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#include <Library/MemEncryptTdxLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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/**
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Install IOMMU protocol to provide the DMA support for PciHostBridge.
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**/
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EFI_STATUS
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EFIAPI
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InstallIoMmuProtocol (
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VOID
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);
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#endif
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