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Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/S3Resume2.h')
-rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/S3Resume2.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/S3Resume2.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/S3Resume2.h new file mode 100644 index 0000000000..2645c22975 --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/S3Resume2.h @@ -0,0 +1,92 @@ +/** @file + This PPI produces functions to interpret and execute the PI boot script table. + + This PPI is published by a PEIM and provides for the restoration of the platform's + configuration when resuming from the ACPI S3 power state. The ability to execute + the boot script may depend on the availability of other PPIs. For example, if + the boot script includes an SMBus command, this PEIM looks for the relevant PPI + that is able to execute that command. + + Copyright (c) 2010, 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. + + @par Revision Reference: + This PPI is defined in UEFI Platform Initialization Specification 1.2 Volume 5: + Standards + +**/ + +#ifndef __PEI_S3_RESUME_PPI_H__ +#define __PEI_S3_RESUME_PPI_H__ + +/// +/// Global ID for EFI_PEI_S3_RESUME2_PPI +/// +#define EFI_PEI_S3_RESUME2_PPI_GUID \ + { \ + 0x6D582DBC, 0xDB85, 0x4514, {0x8F, 0xCC, 0x5A, 0xDF, 0x62, 0x27, 0xB1, 0x47 } \ + } + +/// +/// Forward declaration for EFI_PEI_S3_RESUME_PPI +/// +typedef struct _EFI_PEI_S3_RESUME2_PPI EFI_PEI_S3_RESUME2_PPI; + +/** + Restores the platform to its preboot configuration for an S3 resume and + jumps to the OS waking vector. + + This function will restore the platform to its pre-boot configuration that was + pre-stored in the boot script table and transfer control to OS waking vector. + Upon invocation, this function is responsible for locating the following + information before jumping to OS waking vector: + - ACPI tables + - boot script table + - any other information that it needs + + The S3RestoreConfig() function then executes the pre-stored boot script table + and transitions the platform to the pre-boot state. The boot script is recorded + during regular boot using the EFI_S3_SAVE_STATE_PROTOCOL.Write() and + EFI_S3_SMM_SAVE_STATE_PROTOCOL.Write() functions. Finally, this function + transfers control to the OS waking vector. If the OS supports only a real-mode + waking vector, this function will switch from flat mode to real mode before + jumping to the waking vector. If all platform pre-boot configurations are + successfully restored and all other necessary information is ready, this + function will never return and instead will directly jump to the OS waking + vector. If this function returns, it indicates that the attempt to resume + from the ACPI S3 sleep state failed. + + @param[in] This Pointer to this instance of the PEI_S3_RESUME_PPI + + @retval EFI_ABORTED Execution of the S3 resume boot script table failed. + @retval EFI_NOT_FOUND Some necessary information that is used for the S3 + resume boot path could not be located. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PEI_S3_RESUME_PPI_RESTORE_CONFIG2)( + IN EFI_PEI_S3_RESUME2_PPI *This + ); + +/** + EFI_PEI_S3_RESUME2_PPI accomplishes the firmware S3 resume boot + path and transfers control to OS. +**/ +struct _EFI_PEI_S3_RESUME2_PPI { + /// + /// Restores the platform to its preboot configuration for an S3 resume and + /// jumps to the OS waking vector. + /// + EFI_PEI_S3_RESUME_PPI_RESTORE_CONFIG2 S3RestoreConfig2; +}; + +extern EFI_GUID gEfiPeiS3Resume2PpiGuid; + +#endif |