Extend VMM to 32M

Add mmLinearMap to create block at a specified phys addr.

Added iv_MaptoPhy in the block to indicate we are physically mapped
block and to not apply the HRMOR.

Change-Id: I75ddb19b82ae9a2035ff873edff8a34a33c74639
RTC:43401
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1846
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/kernel/syscall.C b/src/kernel/syscall.C
index 4eb3b4fa8..23239a8a3 100644
--- a/src/kernel/syscall.C
+++ b/src/kernel/syscall.C
@@ -42,6 +42,7 @@
 #include <kernel/intmsghandler.H>
 #include <sys/sync.h>
 
+
 extern "C"
 void kernel_execute_decrementer()
 {
@@ -92,6 +93,8 @@ namespace Systemcalls
     void MmSetPermission(task_t *t);
     void MmAllocPages(task_t *t);
     void MmVirtToPhys(task_t *t);
+    void MmExtend(task_t *t);
+    void MmLinearMap(task_t *t);
 
 
     syscall syscalls[] =
@@ -131,6 +134,8 @@ namespace Systemcalls
         &MmSetPermission, // MM_SET_PERMISSION
         &MmAllocPages,    // MM_ALLOC_PAGES
         &MmVirtToPhys,    // MM_VIRT_TO_PHYS
+        &MmExtend,        // MM_EXTEND
+        &MmLinearMap,     // MM_LINEAR_MAP
         };
 };
 
@@ -794,5 +799,28 @@ namespace Systemcalls
         uint64_t phys = VmmManager::findPhysicalAddress(i_vaddr);
         TASK_SETRTN(t, phys);
     }
+
+    /**
+     * Allocates a block of virtual memory that extends the VMM
+     * space upto 32MEG of Mainstore.
+     * @param[in] t: The task used to extend Memory 
+     */
+    void MmExtend(task_t* t)
+    {
+        TASK_SETRTN(t, VmmManager::mmExtend());
+    }
+
+    /**
+     * Allocates a block of memory of the given size
+     * to at a specified physical address 
+     */
+    void MmLinearMap(task_t* t)
+    {
+        void* paddr = (void *)TASK_GETARG0(t);
+        uint64_t size = (uint64_t)TASK_GETARG1(t);
+
+        TASK_SETRTN(t, VmmManager::mmLinearMap(paddr,size));
+    }
+
 };