Host Data Service

Implemented functions to load the Host Interface Data
 into memory and retrieve pointers to specific pieces
 of data therein.
Verified in Murano and Tuleta configs.

RTC: 49509
Change-Id: I18b44cd53f2cab91b83ecad283b998783e275d4f
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/2367
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Terry J. Opie <opiet@us.ibm.com>
Reviewed-by: Melissa J. Connell <missyc@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

4 files changed, 92 insertions, 29 deletions

diff --git a/src/include/errno.h b/src/include/errno.h
index 020366357..5e7833985 100644
--- a/src/include/errno.h
+++ b/src/include/errno.h
@@ -1,26 +1,25 @@
-/*  IBM_PROLOG_BEGIN_TAG
- *  This is an automatically generated prolog.
- *
- *  $Source: src/include/errno.h $
- *
- *  IBM CONFIDENTIAL
- *
- *  COPYRIGHT International Business Machines Corp. 2011-2012
- *
- *  p1
- *
- *  Object Code Only (OCO) source materials
- *  Licensed Internal Code Source Materials
- *  IBM HostBoot Licensed Internal Code
- *
- *  The source code for this program is not published or other-
- *  wise divested of its trade secrets, irrespective of what has
- *  been deposited with the U.S. Copyright Office.
- *
- *  Origin: 30
- *
- *  IBM_PROLOG_END_TAG
- */
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/include/errno.h $                                         */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2011,2012              */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
 #ifndef _ERRNO_H
 #define _ERRNO_H
 
@@ -34,6 +33,7 @@
 #define EINVAL          22      // Invalid argument
 #define ENFILE          23      // Too many open files in system
 #define EDEADLK         35      // Operation would cause deadlock.
+#define EALREADY        114     // Operation already in progress 
 
 #define EWOULDBLOCK     EAGAIN  // operation would block
 
diff --git a/src/include/usr/runtime/runtime.H b/src/include/usr/runtime/runtime.H
index f638d9762..0681ad3a8 100644
--- a/src/include/usr/runtime/runtime.H
+++ b/src/include/usr/runtime/runtime.H
@@ -38,6 +38,43 @@ namespace RUNTIME
  */
 errlHndl_t populate_attributes( void );
 
+/**
+ * @brief  Add the host data mainstore location to VMM
+ */
+errlHndl_t load_host_data( void );
+
+/**
+ * HDAT Sections
+ */
+enum SectionId
+{
+    HSVC_NODE_DATA,       //< HostServices Node Attributes
+    HSVC_SYSTEM_DATA,     //< HostServices System Attributes
+    IPLPARMS_SYSTEM,      //< IPL Parms
+    MS_DUMP_SRC_TBL,      //< MDST: Memory Dump Source Table
+    MS_DUMP_DST_TBL,      //< MDDT: Memory Dump Destination Table
+    MS_DUMP_RESULTS_TBL,  //< MDRT: Memory Dump Results Table
+};
+
+/**
+ * @brief  Get a pointer to the beginning of a particular section of
+ *         the host data memory.
+ *
+ * @description  The returned pointer will not include any header hdat header
+ *     information.  
+ *
+ * @param[in] i_section  Chunk of data to find
+ * @param[in] i_instance  Instance of section when there are multiple entries
+ * @param[out] o_dataAddr  Physical memory address of data
+ * @param[out] o_dataSize  Size of data in bytes, 0 on error, DATA_SIZE_UNKNOWN if unknown
+ *
+ * @return errlHndl_t  NULL on success
+ */
+errlHndl_t get_host_data_section( SectionId i_section,
+                                  uint64_t i_instance,
+                                  uint64_t& o_dataAddr,
+                                  size_t& o_dataSize );
+const size_t DATA_SIZE_UNKNOWN = 0xFFFFFFFFFFFFFFFF;
 
 }
 
diff --git a/src/include/usr/runtime/runtime_reasoncodes.H b/src/include/usr/runtime/runtime_reasoncodes.H
index 3c81ac54b..0986d585b 100644
--- a/src/include/usr/runtime/runtime_reasoncodes.H
+++ b/src/include/usr/runtime/runtime_reasoncodes.H
@@ -29,14 +29,31 @@ namespace RUNTIME
 {
     enum RuntimeModuleId
     {
-        MOD_RUNTIME_INVALID             = 0x00, /**< Zero is an invalid module id */
-        MOD_RUNTIME_POP_SYS_ATTR        = 0x01, 
-        MOD_RUNTIME_POP_NODE_ATTR       = 0x02,
+        MOD_RUNTIME_INVALID             = 0x00, /**< Invalid module id */
+        MOD_RUNTIME_POP_SYS_ATTR        = 0x01, /**< populate_attributes.C */
+        MOD_RUNTIME_POP_NODE_ATTR       = 0x02, /**< populate_attributes.C */
+        MOD_HDATSERVICE_CHECK_HEADER    = 0x03, /**< hdatservice.C */
+        MOD_HDATSERVICE_CHECK_TUPLE     = 0x04, /**< hdatservice.C */
+        MOD_HDATSERVICE_LOAD_HOST_DATA  = 0x05, /**< hdatservice.C */
+        MOD_HDATSERVICE_GET_STANDALONE_SECTION  = 0x06, /**< hdatservice.C */
+        MOD_HDATSERVICE_GET_HOST_DATA_SECTION  = 0x07, /**< hdatservice.C */
+        MOD_HDATSERVICE_VERIFY_HDAT_ADDRESS  = 0x08, /**< hdatservice.C */
     };
 
     enum RuntimeReasonCode
     {
         RC_ATTR_GET_FAIL            = RUNTIME_COMP_ID | 0x01,
+        RC_BAD_HDAT_HEADER          = RUNTIME_COMP_ID | 0x02,
+        RC_BAD_HDAT_TUPLE           = RUNTIME_COMP_ID | 0x03,
+        RC_INVALID_STANDALONE       = RUNTIME_COMP_ID | 0x04,
+        RC_CANNOT_MAP_MEMORY        = RUNTIME_COMP_ID | 0x05,
+        RC_WRONG_PAYLOAD_ATTRS      = RUNTIME_COMP_ID | 0x06,
+        RC_CANNOT_MAP_MEMORY2       = RUNTIME_COMP_ID | 0x07,
+        RC_INVALID_PAYLOAD_KIND     = RUNTIME_COMP_ID | 0x08,
+        RC_NO_HSVC_NODE_DATA_FOUND  = RUNTIME_COMP_ID | 0x09,
+        RC_BAD_NACA                 = RUNTIME_COMP_ID | 0x0A,
+        RC_INVALID_ADDRESS          = RUNTIME_COMP_ID | 0x0B,
+        RC_INVALID_SECTION          = RUNTIME_COMP_ID | 0x0C,
     };
 };
 
diff --git a/src/include/usr/vmmconst.h b/src/include/usr/vmmconst.h
index 7a5250cce..d858ebbdb 100644
--- a/src/include/usr/vmmconst.h
+++ b/src/include/usr/vmmconst.h
@@ -58,13 +58,17 @@
 #define VMM_ADDR_BASE_BLOCK 0
 
 /** Base Segment Base Block size */
-#define VMM_BASE_BLOCK_SIZE 8*MEGABYTE
+#define VMM_BASE_BLOCK_SIZE (8*MEGABYTE)
 
 /** Base Segment Extended Memory Block Base Address */
-#define VMM_ADDR_EXTEND_BLOCK VMM_ADDR_BASE_BLOCK + VMM_BASE_BLOCK_SIZE
+#define VMM_ADDR_EXTEND_BLOCK (VMM_ADDR_BASE_BLOCK + VMM_BASE_BLOCK_SIZE)
+
+/** Maximize size of Base Segment Memory after expansion */
+#define VMM_MEMORY_SIZE (32*MEGABYTE)
 
 /** Base Segment Extended Memory Block Size */
-#define VMM_EXTEND_BLOCK_SIZE (32*MEGABYTE)-VMM_BASE_BLOCK_SIZE
+#define VMM_EXTEND_BLOCK_SIZE (VMM_MEMORY_SIZE-VMM_BASE_BLOCK_SIZE)
+
 /**
  * Resource Providers
  */
@@ -113,11 +117,16 @@ enum BlockPriority
 /**
  * Test Constants
  */
+
 /** Base virtual address used in remove pages test */
 #define VMM_VADDR_RMVPAGE_TEST (700 * GIGABYTE)
 
 /** Block size used in remove pages test */
 #define VMM_SIZE_RMVPAGE_TEST (8 * PAGESIZE)
 
+/** Chunk of physical memory to use for HostServices Attributes */
+#define HSVC_TEST_MEMORY_ADDR  (VMM_MEMORY_SIZE + 32*MEGABYTE)
+#define HSVC_TEST_MEMORY_SIZE  (2*MEGABYTE)
+
 
 #endif /* _VMMCONST_H */