diff options
| -rw-r--r-- | MdeModulePkg/Include/Ppi/SmmCommunication.h | 64 | ||||
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 3 |
2 files changed, 67 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Ppi/SmmCommunication.h b/MdeModulePkg/Include/Ppi/SmmCommunication.h new file mode 100644 index 0000000..a22ed9f --- /dev/null +++ b/MdeModulePkg/Include/Ppi/SmmCommunication.h @@ -0,0 +1,64 @@ +/** @file
+ EFI SMM Communication PPI definition.
+
+ This Ppi provides a means of communicating between PEIM and SMI
+ handlers inside of SMM.
+ This Ppi is produced and consumed only in S3 resume boot path.
+ It is NOT available in normal boot path.
+
+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.
+
+**/
+
+
+#ifndef _SMM_COMMUNICATION_PPI_H_
+#define _SMM_COMMUNICATION_PPI_H_
+
+#define EFI_PEI_SMM_COMMUNICATION_PPI_GUID \
+ { \
+ 0xae933e1c, 0xcc47, 0x4e38, { 0x8f, 0xe, 0xe2, 0xf6, 0x1d, 0x26, 0x5, 0xdf } \
+ }
+
+typedef struct _EFI_PEI_SMM_COMMUNICATION_PPI EFI_PEI_SMM_COMMUNICATION_PPI;
+
+/**
+ Communicates with a registered handler.
+
+ This function provides a service to send and receive messages from a registered UEFI service.
+
+ @param[in] This The EFI_PEI_SMM_COMMUNICATION_PPI instance.
+ @param[in] CommBuffer A pointer to the buffer to convey into SMRAM.
+ @param[in] CommSize The size of the data buffer being passed in.On exit, the size of data
+ being returned. Zero if the handler does not wish to reply with any data.
+
+ @retval EFI_SUCCESS The message was successfully posted.
+ @retval EFI_INVALID_PARAMETER The CommBuffer was NULL.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PEI_SMM_COMMUNICATE)(
+ IN CONST EFI_PEI_SMM_COMMUNICATION_PPI *This,
+ IN OUT VOID *CommBuffer,
+ IN OUT UINTN *CommSize
+ );
+
+///
+/// EFI SMM Communication Protocol provides runtime services for communicating
+/// between DXE drivers and a registered SMI handler.
+///
+struct _EFI_PEI_SMM_COMMUNICATION_PPI {
+ EFI_PEI_SMM_COMMUNICATE Communicate;
+};
+
+extern EFI_GUID gEfiPeiSmmCommunicationPpiGuid;
+
+#endif
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index a983c55..0a9cdcd 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -204,6 +204,9 @@ ## Include/Ppi/Capsule.h
gPeiCapsulePpiGuid = { 0x3acf33ee, 0xd892, 0x40f4, { 0xa2, 0xfc, 0x38, 0x54, 0xd2, 0xe1, 0x32, 0x3d }}
+ ## Include/Ppi/SmmCommunication.h
+ gEfiPeiSmmCommunicationPpiGuid = { 0xae933e1c, 0xcc47, 0x4e38, { 0x8f, 0xe, 0xe2, 0xf6, 0x1d, 0x26, 0x5, 0xdf }}
+
## Include/Ppi/SmmAccess.h
gPeiSmmAccessPpiGuid = { 0x268f33a9, 0xcccd, 0x48be, { 0x88, 0x17, 0x86, 0x5, 0x3a, 0xc3, 0x2e, 0xd6 }}
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