Implemented SBE Passthrough for Attribute Override.

*Wrote a runtime SBE pass-through function to invoke the
runtime apply_attribute_overrides function. The caller
is required to place the request data in the
SBE COMMS reserved memory area and invoke the
sbe_message_passing function. The request data consists
of an sbeMessage_t header followed by binary override
data which can be obtained from the attributeOverride tool.
Upon completion of the sbe_message_passing function, the
respose data will be written to the SBE COMMS AREA.

*Added support for accessing system attributes at runtime.

RTC: 152409
Change-Id: Ieed3e026350cc272e6268e7802971551d3f39ed4
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/44311
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Roland Veloz <rveloz@us.ibm.com>
Reviewed-by: Martin Gloff <mgloff@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

3 files changed, 70 insertions, 0 deletions

diff --git a/src/include/usr/sbeio/runtime/sbe_msg_passing.H b/src/include/usr/sbeio/runtime/sbe_msg_passing.H
index 035047a28..53899d9f5 100644
--- a/src/include/usr/sbeio/runtime/sbe_msg_passing.H
+++ b/src/include/usr/sbeio/runtime/sbe_msg_passing.H
@@ -30,6 +30,12 @@
 #include <errl/errlmanager.H>
 #include <targeting/common/target.H>
 
+//Determine the Data Offset of an SBE Message
+#define SBE_MSG_DATA_OFFSET \
+static_cast<uint32_t>((reinterpret_cast<uint64_t>(\
+ (((const SBE_MSG::sbeMessage_t*)(0))->data)) - \
+reinterpret_cast<uint64_t>( \
+&(((const SBE_MSG::sbeMessage_t*)(0))->cmdHdr))))
 
 namespace SBE_MSG
 {
@@ -82,6 +88,8 @@ namespace SBE_MSG
         PASSTHRU_HTMGT_GET_PSTATE   = 0x00E00002, // HTMGT Get PState Table
         // Command Class 0xE1 - HBRT Messages
         PASSTHRU_HBRT_GET_PSTATE    = 0x00E10001, // HBRT Get PState Table
+        PASSTHRU_HBRT_OVERRIDE_ATTR = 0x00E10002, // HBRT Apply Override
+                                                  // attributes
     };
 
 
diff --git a/src/include/usr/sbeio/runtime/sbeio_attr_override.H b/src/include/usr/sbeio/runtime/sbeio_attr_override.H
new file mode 100644
index 000000000..ee826d128
--- /dev/null
+++ b/src/include/usr/sbeio/runtime/sbeio_attr_override.H
@@ -0,0 +1,60 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/include/usr/sbeio/runtime/sbeio_attr_override.H $         */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2017                             */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __SBE_MSG_SBEIO_ATTR_OVERRIDE_H
+#define __SBE_MSG_SBEIO_ATTR_OVERRIDE_H
+
+#include <errl/errlentry.H>
+#include <targeting/common/target.H>
+
+namespace SBE_MSG
+{
+
+/**
+ * @brief SBE pass-through command for applying attribute overrides at runtime.
+ *        This command acts as a bridge between sbe pass-through and the
+ *        runtime apply_attr_override function.
+ *
+ * @param[in]  i_targetHandle - The target of the request.
+ * @param[in]  i_reqDataSize - Size of the attribute overrides blob.
+ * @param[in]  i_reqData - Attribute overrides binary.
+ * @param[out] o_rspStatus - The return value from the apply_attr_overrides
+ * @param[out] o_rspDataSize - Set to 0 on return.
+ * @param[out] o_rspData - Not Used.
+ *
+ * @return nullptr upon success, pointer to ErrlEntry if an error occurred.
+ *
+ */
+errlHndl_t sbeApplyAttrOverrides(
+                                 TARGETING::TargetHandle_t i_targetHandle,
+                                 uint32_t   i_reqDataSize,
+                                 uint8_t  * i_reqData,
+                                 uint32_t * o_rspStatus,
+                                 uint32_t * o_rspDataSize,
+                                 uint8_t  * o_rspData
+                                );
+
+}
+
+#endif
diff --git a/src/include/usr/sbeio/sbeioreasoncodes.H b/src/include/usr/sbeio/sbeioreasoncodes.H
index 4746ff16e..4a6200ccc 100644
--- a/src/include/usr/sbeio/sbeioreasoncodes.H
+++ b/src/include/usr/sbeio/sbeioreasoncodes.H
@@ -49,6 +49,7 @@ enum sbeioModuleId
     SBEIO_FIFO_CONTINUE_MPIPL           = 0x04,
     SBEIO_RUNTIME                       = 0x05,
     SBEIO_MEM_REGION                    = 0x06,
+    SBEIO_RUNTIME_ATTR_OVERRIDE         = 0x07,
 };
 
 /**
@@ -99,6 +100,7 @@ enum sbeioReasonCode
     SBEIO_RT_FUNCTION_NOT_FOUND        = SBEIO_COMP_ID | 0x39,
     SBEIO_RT_NO_INTERFACE_POINTER      = SBEIO_COMP_ID | 0x3A,
     SBEIO_RT_NO_INTERFACE_FUNCTION     = SBEIO_COMP_ID | 0x3B,
+    SBEIO_RT_NO_APPLY_ATTR_FUNCTION    = SBEIO_COMP_ID | 0x3C,
 
     // SBE Unsecure Memory Region error codes
     SBEIO_MEM_REGION_DOES_NOT_EXIST    = SBEIO_COMP_ID | 0x50,