projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| f9d129e6 BS |
1 | /** @file\r |
| 2 | \r | |
| 3 | The protocol provides support to allocate, free, map and umap a DMA buffer for\r | |
| 4 | bus master (e.g PciHostBridge). When SEV is enabled, the DMA operations must\r | |
| 5 | be performed on unencrypted buffer hence protocol clear the encryption bit\r | |
| 6 | from the DMA buffer.\r | |
| 7 | \r | |
| 8 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r | |
| 9 | Copyright (c) 2017, AMD Inc. All rights reserved.<BR>\r | |
| 10 | This program and the accompanying materials are licensed and made available\r | |
| 11 | under the terms and conditions of the BSD License which accompanies this\r | |
| 12 | distribution. The full text of the license may be found at\r | |
| 13 | http://opensource.org/licenses/bsd-license.php\r | |
| 14 | \r | |
| 15 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 16 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 17 | \r | |
| 18 | **/\r | |
| 19 | \r | |
| 20 | #ifndef __AMD_SEV_IOMMU_H_\r | |
| 21 | #define __AMD_SEV_IOMMU_H\r | |
| 22 | \r | |
| 23 | #include <Protocol/IoMmu.h>\r | |
| 24 | \r | |
| 25 | #include <Library/BaseLib.h>\r | |
| 26 | #include <Library/DebugLib.h>\r | |
| 27 | #include <Library/BaseMemoryLib.h>\r | |
| 28 | #include <Library/MemoryAllocationLib.h>\r | |
| 29 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 30 | #include <Library/MemEncryptSevLib.h>\r | |
| 31 | \r | |
| 32 | /**\r | |
| 33 | Install IOMMU protocol to provide the DMA support for PciHostBridge and\r | |
| 34 | MemEncryptSevLib.\r | |
| 35 | \r | |
| 36 | **/\r | |
| 37 | VOID\r | |
| 38 | EFIAPI\r | |
| 39 | AmdSevInstallIoMmuProtocol (\r | |
| 40 | VOID\r | |
| 41 | );\r | |
| 42 | \r | |
| 43 | #endif\r |