tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdeModulePkg Ppi/IoMmu.h: Add EFI_NOT_AVAILABLE_YET return status code 

Install IOMMU PPI for pre-memory phase and return
EFI_NOT_AVAILABLE_YET to indicate that DMA protection has been enabled,
but DMA buffer are not available to be allocated yet.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Star Zeng 2018-01-26 11:46:17 +08:00
parent ed0e52fc9a
commit 20b58eb850
1 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
MdeModulePkg/Include/Ppi/IoMmu.h
View File

@ -1,7 +1,7 @@
/** @file
PEI IOMMU PPI.
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
@ -69,6 +69,8 @@ typedef struct _EDKII_IOMMU_PPI EDKII_IOMMU_PPI;
@retval EFI_UNSUPPORTED The IOMMU does not support the memory range specified by Mapping.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to modify the IOMMU access.
@retval EFI_DEVICE_ERROR The IOMMU device reported an error while attempting the operation.
@retval EFI_NOT_AVAILABLE_YET DMA protection has been enabled, but DMA buffer are
not available to be allocated yet.
**/
typedef
@ -97,6 +99,8 @@ EFI_STATUS
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
@retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
@retval EFI_NOT_AVAILABLE_YET DMA protection has been enabled, but DMA buffer are
not available to be allocated yet.
**/
typedef
@ -119,6 +123,9 @@ EFI_STATUS
@retval EFI_SUCCESS The range was unmapped.
@retval EFI_INVALID_PARAMETER Mapping is not a value that was returned by Map().
@retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
@retval EFI_NOT_AVAILABLE_YET DMA protection has been enabled, but DMA buffer are
not available to be allocated yet.
**/
typedef
EFI_STATUS
@ -144,6 +151,8 @@ EFI_STATUS
MEMORY_WRITE_COMBINE, MEMORY_CACHED and DUAL_ADDRESS_CYCLE.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
@retval EFI_NOT_AVAILABLE_YET DMA protection has been enabled, but DMA buffer are
not available to be allocated yet.
**/
typedef
@ -159,13 +168,15 @@ EFI_STATUS
/**
Frees memory that was allocated with AllocateBuffer().
@param This The protocol instance pointer.
@param This The PPI instance pointer.
@param Pages The number of pages to free.
@param HostAddress The base system memory address of the allocated range.
@retval EFI_SUCCESS The requested memory pages were freed.
@retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and Pages
was not allocated with AllocateBuffer().
@retval EFI_NOT_AVAILABLE_YET DMA protection has been enabled, but DMA buffer are
not available to be allocated yet.
**/
typedef