|
Last change
on this file since 81913 was 80721, checked in by vboxsync, 5 years ago |
|
Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
|
-
Property svn:eol-style
set to
native
|
|
File size:
867 bytes
|
| Line | |
|---|
| 1 | /** @file
|
|---|
| 2 |
|
|---|
| 3 | IoMmuDxe driver installs EDKII_IOMMU_PROTOCOL to provide the support for DMA
|
|---|
| 4 | operations when SEV is enabled.
|
|---|
| 5 |
|
|---|
| 6 | Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
|
|---|
| 7 |
|
|---|
| 8 | SPDX-License-Identifier: BSD-2-Clause-Patent
|
|---|
| 9 |
|
|---|
| 10 | **/
|
|---|
| 11 |
|
|---|
| 12 | #include "AmdSevIoMmu.h"
|
|---|
| 13 |
|
|---|
| 14 | EFI_STATUS
|
|---|
| 15 | EFIAPI
|
|---|
| 16 | IoMmuDxeEntryPoint (
|
|---|
| 17 | IN EFI_HANDLE ImageHandle,
|
|---|
| 18 | IN EFI_SYSTEM_TABLE *SystemTable
|
|---|
| 19 | )
|
|---|
| 20 | {
|
|---|
| 21 | EFI_STATUS Status;
|
|---|
| 22 | EFI_HANDLE Handle;
|
|---|
| 23 |
|
|---|
| 24 | //
|
|---|
| 25 | // When SEV is enabled, install IoMmu protocol otherwise install the
|
|---|
| 26 | // placeholder protocol so that other dependent module can run.
|
|---|
| 27 | //
|
|---|
| 28 | if (MemEncryptSevIsEnabled ()) {
|
|---|
| 29 | Status = AmdSevInstallIoMmuProtocol ();
|
|---|
| 30 | } else {
|
|---|
| 31 | Handle = NULL;
|
|---|
| 32 |
|
|---|
| 33 | Status = gBS->InstallMultipleProtocolInterfaces (
|
|---|
| 34 | &Handle,
|
|---|
| 35 | &gIoMmuAbsentProtocolGuid,
|
|---|
| 36 | NULL, NULL);
|
|---|
| 37 | }
|
|---|
| 38 |
|
|---|
| 39 | return Status;
|
|---|
| 40 | }
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
