From 994ed56575ca157296750f5e2c8153471c2253af Mon Sep 17 00:00:00 2001
From: Missy Connell <missyc@us.ibm.com>
Date: Thu, 14 Jun 2012 15:30:05 -0500
Subject: VMM tools support

    Added Support for the following Debug VMM tools:
	VirtToPhys - given a virtual address will return physical addr
             There are options to get more debug info or display the SPTE
        PrintVMM - prints out all segments,and their blocks

Change-Id: I9fb150804c91489e3c5d2ae2bfa129d534f198ba
RTC: 35306
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/1217
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>
---
 src/build/debug/Hostboot/PrintVMM.pm | 167 +++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 src/build/debug/Hostboot/PrintVMM.pm

(limited to 'src/build/debug/Hostboot/PrintVMM.pm')

diff --git a/src/build/debug/Hostboot/PrintVMM.pm b/src/build/debug/Hostboot/PrintVMM.pm
new file mode 100644
index 000000000..fcb3a2230
--- /dev/null
+++ b/src/build/debug/Hostboot/PrintVMM.pm
@@ -0,0 +1,167 @@
+#  IBM_PROLOG_BEGIN_TAG
+#  This is an automatically generated prolog.
+#
+#  $Source: src/build/debug/Hostboot/PrintVMM.pm $
+#
+#  IBM CONFIDENTIAL
+#
+#  COPYRIGHT International Business Machines Corp. 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_TAGuse strict;
+
+use strict;
+use Hostboot::_DebugFrameworkVMM;
+package Hostboot::PrintVMM;
+use Exporter;
+use integer;
+our @EXPORT_OK = ('main');
+
+
+
+sub main
+{
+    ::userDisplay "PrintVMM module.\n";
+
+    my ($packName,$args) = @_;
+
+    my $phyAddr = Hostboot::_DebugFrameworkVMM::NotFound;
+    my $debug = 0;
+    my $displaySPTE = 0;
+    my $displayAll = 1;
+    my $displayBase = 0;
+    my $displayStack = 0;
+    my $displayDevice = 0;
+
+    if (defined $args->{"debug"})
+    {
+        $debug = 1;
+    }
+
+    if (defined $args->{"base"})
+    {
+        $displayBase = 1;
+        $displayAll = 0;
+    }
+
+    if (defined $args->{"stack"})
+    {
+        $displayStack = 1;
+        $displayAll = 0;
+    }
+
+    if (defined $args->{"device"})
+    {
+        $displayDevice = 1;
+        $displayAll = 0;
+    }
+
+    # Get the device segment address
+    my @segment_manager_addr =
+          ::findSymbolAddress("Singleton<SegmentManager>::instance()::instance");
+
+    if (not defined @segment_manager_addr)
+    {
+	::userDisplay "   VirtualToPhy: Cannot find Device Segment symbol.\n"; die;
+    }
+
+    my $baseSegmentPtr =
+         ::read64 ($segment_manager_addr[0] +
+                   Hostboot::_DebugFrameworkVMM::SEGMGR_BASE_SEGMENT_OFFSET, 8);
+
+    my $StackSegmentPtr =
+         ::read64 ($segment_manager_addr[0] +
+                   Hostboot::_DebugFrameworkVMM::SEGMGR_STACK_SEGMENT_OFFSET, 8);
+
+    my $DeviceSegmentPtr = 
+         ::read64 ($segment_manager_addr[0] + 
+                   Hostboot::_DebugFrameworkVMM::SEGMGR_FIRSTDEVICE_SEGMENT_OFFSET, 8);
+
+    if (($displayBase) || ($displayAll))
+    {
+        ::userDisplay "\n-------------\n";
+        ::userDisplay "BASE SEGMENT\n";
+        ::userDisplay "-------------\n";
+
+
+        if ($baseSegmentPtr == 0)
+        {
+            ::userDisplay "   PrintVMM:  No Segment Pointer. Have you run yet?\n"; die;
+        }
+
+        Hostboot::_DebugFrameworkVMM::printBaseSegment($baseSegmentPtr);
+    }
+
+    if (($displayStack) || ($displayAll))
+    {
+
+        ::userDisplay "\n-------------\n";
+        ::userDisplay "STACK SEGMENT\n";
+        ::userDisplay "-------------\n";
+
+        if ($StackSegmentPtr == 0)
+        {
+            ::userDisplay "   PrintVMM:  No Segment Pointer. Have you run yet?\n"; die;
+        }
+
+        my $StackSegBaseAddr = ::read64($StackSegmentPtr +
+                                        Hostboot::_DebugFrameworkVMM::STACKSEGMENT_BASEADDR_OFFSET, 8);
+
+        ::userDisplay (sprintf "   Stack Segment base addr=%X\n" , $StackSegBaseAddr);
+
+        my $firststackptr = ::read64 ($StackSegmentPtr +
+                                      Hostboot::_DebugFrameworkVMM::STACKSEGMENT_FIRST_STACK_OFFSET, 8);
+
+        Hostboot::_DebugFrameworkVMM::printStackSegment($firststackptr);
+  
+     }
+
+    if (($displayDevice) || ($displayAll))
+    {
+
+        ::userDisplay "\n---------------\n";
+        ::userDisplay "DEVICE SEGMENTS\n";
+        ::userDisplay "---------------\n";
+
+        if ($DeviceSegmentPtr == 0)
+        {
+            ::userDisplay "   PrintVMM:  No Segment Pointer. Have you run yet?\n"; die;
+        }
+        #Pass in address of the pointer to the first device segment in the segment manager
+        # This routine will loop through all possible device semgnets and print their info.  
+        Hostboot::_DebugFrameworkVMM::printDeviceSegments($segment_manager_addr[0] +
+                   Hostboot::_DebugFrameworkVMM::SEGMGR_FIRSTDEVICE_SEGMENT_OFFSET);
+
+
+     }
+
+ return 0;
+}
+
+
+
+sub helpInfo
+{
+    my %info = (
+        name => "PrintVMM",
+        intro => ["Print out the VMM mapping. "],
+        options => {
+                    "debug" => ["More debug output."],
+                    "base" => ["Prints out BASE segment info."],
+                    "stack" => ["Prints out STACK segment info."],
+                    "device" => ["Prints out Device segment info."],
+                   },
+
+    );
+}
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