From: "Kun Qin" <kuqin12@gmail.com>
To: devel@edk2.groups.io
Cc: "Michael D Kinney" <michael.d.kinney@intel.com>,
"Liming Gao" <gaoliming@byosoft.com.cn>,
"Zhiguang Liu" <zhiguang.liu@intel.com>,
"Hao A Wu" <hao.a.wu@intel.com>,
"Marvin Häuser" <mhaeuser@posteo.de>,
"Bret Barkelew" <Bret.Barkelew@microsoft.com>,
"Michael Kubacki" <michael.kubacki@microsoft.com>
Subject: [PATCH v3 4/7] MdePkg: MmCommunication: Introduce EFI_PEI_MM_COMMUNICATION3_PPI to MdePkg
Date: Mon, 16 Aug 2021 22:08:04 -0700 [thread overview]
Message-ID: <20210817050807.766-5-kuqin12@gmail.com> (raw)
In-Reply-To: <20210817050807.766-1-kuqin12@gmail.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3398
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3430
This change introduces a new definition for MM communicate PPI v3.
This PPI will be installed under a new GUID in contrast to exisiting
EFI_PEI_MM_COMMUNICATION_PPI.
Data communicated to MM through EFI_PEI_MM_COMMUNICATION3_PPI should
always start with EFI_MM_COMMUNICATE_HEADER_V3 with its HeaderGuid,
Signature and Version fields properly populated.
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Marvin Häuser <mhaeuser@posteo.de>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Kun Qin <kuqin12@gmail.com>
---
Notes:
v3:
- Newly introduced v3 communicate PPI
MdePkg/Include/Ppi/MmCommunication3.h | 58 ++++++++++++++++++++
MdePkg/MdePkg.dec | 3 +
2 files changed, 61 insertions(+)
diff --git a/MdePkg/Include/Ppi/MmCommunication3.h b/MdePkg/Include/Ppi/MmCommunication3.h
new file mode 100644
index 000000000000..11924099b4c3
--- /dev/null
+++ b/MdePkg/Include/Ppi/MmCommunication3.h
@@ -0,0 +1,58 @@
+/** @file
+ EFI MM Communication v3 PPI definition.
+
+ This Ppi provides a means of communicating between PEIM and MMI
+ handlers inside of MM.
+
+Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.
+
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#ifndef MM_COMMUNICATION3_PPI_H_
+#define MM_COMMUNICATION3_PPI_H_
+
+#include <Pi/PiMultiPhase.h>
+
+#define EFI_PEI_MM_COMMUNICATION3_PPI_GUID \
+ { \
+ 0xe70febf6, 0x13ef, 0x4a21, { 0x89, 0x9e, 0xb2, 0x36, 0xf8, 0x25, 0xff, 0xc9 } \
+ }
+
+typedef struct _EFI_PEI_MM_COMMUNICATION3_PPI EFI_PEI_MM_COMMUNICATION3_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_MM_COMMUNICATE3 instance.
+ @param[in, out] CommBuffer A pointer to the buffer to convey into MMRAM.
+ @param[in, out] 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_MM_COMMUNICATE3)(
+ IN CONST EFI_PEI_MM_COMMUNICATION3_PPI *This,
+ IN OUT VOID *CommBuffer,
+ IN OUT UINTN *CommSize
+ );
+
+///
+/// EFI MM Communication PPI provides runtime services for communicating
+/// between DXE drivers and a registered SMI handler.
+///
+struct _EFI_PEI_MM_COMMUNICATION3_PPI {
+ EFI_PEI_MM_COMMUNICATE3 Communicate;
+};
+
+extern EFI_GUID gEfiPeiMmCommunication3PpiGuid;
+
+#endif
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 3168534951c1..c194d6225501 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -1006,6 +1006,9 @@ [Ppis]
## Include/Ppi/DelayedDispatch.h
gEfiPeiDelayedDispatchPpiGuid = { 0x869c711d, 0x649c, 0x44fe, { 0x8b, 0x9e, 0x2c, 0xbb, 0x29, 0x11, 0xc3, 0xe6 }}
+ ## Include/Ppi/MmCommunication3.h
+ gEfiPeiMmCommunication3PpiGuid = { 0xe70febf6, 0x13ef, 0x4a21, { 0x89, 0x9e, 0xb2, 0x36, 0xf8, 0x25, 0xff, 0xc9 }}
+
[Protocols]
## Include/Protocol/Pcd.h
gPcdProtocolGuid = { 0x11B34006, 0xD85B, 0x4D0A, { 0xA2, 0x90, 0xD5, 0xA5, 0x71, 0x31, 0x0E, 0xF7 }}
--
2.32.0.windows.1
next prev parent reply other threads:[~2021-08-17 5:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 5:08 [PATCH v3 0/7] New MM Communicate header and interfaces Kun Qin
2021-08-17 5:08 ` [PATCH v3 1/7] EDK2 Code First: PI Specification: New communicate " Kun Qin
2021-08-17 5:08 ` [PATCH v3 2/7] MdePkg: MmCommunication: Introduce EFI_MM_COMMUNICATE_HEADER_V3 to MdePkg Kun Qin
2021-08-17 5:50 ` [edk2-devel] " Ni, Ray
2021-08-17 6:00 ` Kun Qin
2021-08-17 5:08 ` [PATCH v3 3/7] MdePkg: MmCommunication: Introduce EFI_MM_COMMUNICATION3_PROTOCOL " Kun Qin
2021-08-17 5:08 ` Kun Qin [this message]
2021-08-17 5:08 ` [PATCH v3 5/7] MdeModulePkg: PiSmmCore: Added parser of new MM communicate header Kun Qin
2021-08-17 5:08 ` [PATCH v3 6/7] StandaloneMmPkg: StandaloneMmCore: Parsing " Kun Qin
2021-08-17 5:08 ` [PATCH v3 7/7] MdeModulePkg: PiSmmIpl: Update MessageLength calculation for MmCommunicate Kun Qin
2021-09-16 2:15 ` [edk2-devel] [PATCH v3 0/7] New MM Communicate header and interfaces Kun Qin
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