This is a new PPI introduced in PI 1.4 to pass multiple CPU information from SEC phase to PEI/DXE phases.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff....@intel.com> CC: Liming Gao <liming....@intel.com> --- MdePkg/Include/Ppi/SecPlatformInformation2.h | 85 ++++++++++++++++++++++++++++ MdePkg/MdePkg.dec | 3 + 2 files changed, 88 insertions(+) create mode 100644 MdePkg/Include/Ppi/SecPlatformInformation2.h diff --git a/MdePkg/Include/Ppi/SecPlatformInformation2.h b/MdePkg/Include/Ppi/SecPlatformInformation2.h new file mode 100644 index 0000000..7596333 --- /dev/null +++ b/MdePkg/Include/Ppi/SecPlatformInformation2.h @@ -0,0 +1,85 @@ +/** @file + This file declares Sec Platform Information2 PPI. + + This service is the primary handoff state into the PEI Foundation. + This service abstracts platform-specific information for many CPU's. + +Copyright (c) 2015, 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 +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. + + @par Revision Reference: + This PPI is defined in PI Version 1.4. + +**/ + +#ifndef __SEC_PLATFORM_INFORMATION2_PPI_H__ +#define __SEC_PLATFORM_INFORMATION2_PPI_H__ + +#include <Ppi/SecPlatformInformation.h> + +#define EFI_SEC_PLATFORM_INFORMATION2_GUID \ + { \ + 0x9e9f374b, 0x8f16, 0x4230, {0x98, 0x24, 0x58, 0x46, 0xee, 0x76, 0x6a, 0x97 } \ + } + +typedef struct _EFI_SEC_PLATFORM_INFORMATION2_PPI EFI_SEC_PLATFORM_INFORMATION2_PPI; + +/// +/// EFI_SEC_PLATFORM_INFORMATION_CPU. +/// +typedef struct { + UINT32 CpuLocation; + EFI_SEC_PLATFORM_INFORMATION_RECORD InfoRecord; +} EFI_SEC_PLATFORM_INFORMATION_CPU; + +/// +/// EFI_SEC_PLATFORM_INFORMATION_RECORD2. +/// +typedef struct { + /// + /// The CPU location would be the local APIC ID + /// + UINT32 NumberOfCpus; + EFI_SEC_PLATFORM_INFORMATION_CPU CpuInstance[1]; +} EFI_SEC_PLATFORM_INFORMATION_RECORD2; + +/** + This interface conveys state information out of the Security (SEC) phase into PEI. + + This service is published by the SEC phase. + + @param PeiServices The pointer to the PEI Services Table. + @param StructureSize The pointer to the variable describing size of the input buffer. + @param PlatformInformationRecord2 The pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD2. + + @retval EFI_SUCCESS The data was successfully returned. + @retval EFI_BUFFER_TOO_SMALL The buffer was too small. The current buffer size needed to + hold the record is returned in StructureSize. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_SEC_PLATFORM_INFORMATION2)( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN OUT UINT64 *StructureSize, + OUT EFI_SEC_PLATFORM_INFORMATION_RECORD2 *PlatformInformationRecord2 +); + +/// +/// This service abstracts platform-specific information for many CPU's. +/// It is the multi-processor equivalent of PlatformInformation for +/// implementations that synchronize all CPU's in the SEC phase. +/// +struct _EFI_SEC_PLATFORM_INFORMATION2_PPI { + EFI_SEC_PLATFORM_INFORMATION2 PlatformInformation2; +}; + +extern EFI_GUID gEfiSecPlatformInformation2PpiGuid; + +#endif diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index 29d7e11..677a82f 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -855,6 +855,9 @@ ## Include/Ppi/BlockIo2.h gEfiPeiVirtualBlockIo2PpiGuid = { 0x26cc0fad, 0xbeb3, 0x478a, { 0x91, 0xb2, 0xc, 0x18, 0x8f, 0x72, 0x61, 0x98 }} + ## Include/Ppi/SecPlatformInformation.h + gEfiSecPlatformInformation2PpiGuid = { 0x9e9f374b, 0x8f16, 0x4230, {0x98, 0x24, 0x58, 0x46, 0xee, 0x76, 0x6a, 0x97 } } + [Protocols] ## Include/Protocol/Pcd.h gPcdProtocolGuid = { 0x11B34006, 0xD85B, 0x4D0A, { 0xA2, 0x90, 0xD5, 0xA5, 0x71, 0x31, 0x0E, 0xF7 }} -- 1.9.5.msysgit.0 ------------------------------------------------------------------------------ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
