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IntelSiliconPkg/include: Add VTD_INFO PPI. 

This VTD_INFO_PPI is to provide VTD information in PEI.
As such, we can have a generic VTd driver.

It is a lightweight version DMAR table, but it does
not contain PCI device information.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Jiewen Yao 2017-09-06 15:47:23 +08:00
parent ffe77707a3
commit 77562d13ac
1 changed files with 40 additions and 0 deletions
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40
IntelSiliconPkg/Include/Ppi/VtdInfo.h Normal file
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/** @file
The definition for VTD information PPI.
This is a lightweight VTd information report in PEI phase.
Copyright (c) 2017, 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
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __VTD_INFO_PPI_H__
#define __VTD_INFO_PPI_H__
#define EDKII_VTD_INFO_PPI_GUID \
{ \
0x8a59fcb3, 0xf191, 0x400c, { 0x97, 0x67, 0x67, 0xaf, 0x2b, 0x25, 0x68, 0x4a } \
}
typedef struct _EDKII_VTD_INFO_PPI EDKII_VTD_INFO_PPI;
#define EDKII_VTD_INFO_PPI_REVISION 0x00010000
struct _EDKII_VTD_INFO_PPI {
UINT64 Revision;
UINT8 HostAddressWidth;
UINT8 Reserved[3];
UINT32 VTdEngineCount;
UINT64 VTdEngineAddress[1];
};
extern EFI_GUID gEdkiiVTdInfoPpiGuid;
#endif