<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
h1
{margin-top:12.0pt;
margin-right:0in;
margin-bottom:3.0pt;
margin-left:.3in;
text-indent:-.3in;
page-break-after:avoid;
mso-list:l0 level1 lfo3;
font-size:16.0pt;
font-family:Arial;
font-weight:bold;}
h2
{margin-top:0in;
margin-right:0in;
margin-bottom:12.0pt;
margin-left:.4in;
text-indent:-.4in;
page-break-after:avoid;
mso-list:l0 level2 lfo3;
font-size:14.0pt;
font-family:Arial;
font-weight:bold;}
h3
{margin-top:12.0pt;
margin-right:0in;
margin-bottom:3.0pt;
margin-left:.5in;
text-indent:-.5in;
page-break-after:avoid;
mso-list:l1 level3 lfo6;
font-size:13.0pt;
font-family:Arial;
font-weight:bold;}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
p
{mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:.5in .5in .5in .5in;}
div.Section1
{page:Section1;}
/* List Definitions */
@list l0
{mso-list-id:1143350910;
mso-list-template-ids:1338282562;}
@list l0:level1
{mso-level-style-link:"Heading 1";
mso-level-text:%1;
mso-level-tab-stop:.3in;
mso-level-number-position:left;
margin-left:.3in;
text-indent:-.3in;}
@list l0:level2
{mso-level-style-link:"Heading 2";
mso-level-text:"%1\.%2";
mso-level-tab-stop:.4in;
mso-level-number-position:left;
margin-left:.4in;
text-indent:-.4in;}
@list l0:level3
{mso-level-text:"%1\.%2\.%3";
mso-level-tab-stop:.5in;
mso-level-number-position:left;
margin-left:.5in;
text-indent:-.5in;}
@list l0:level4
{mso-level-text:"%1\.%2\.%3\.%4";
mso-level-tab-stop:.6in;
mso-level-number-position:left;
margin-left:.6in;
text-indent:-.6in;}
@list l0:level5
{mso-level-text:"%1\.%2\.%3\.%4\.%5";
mso-level-tab-stop:.7in;
mso-level-number-position:left;
margin-left:.7in;
text-indent:-.7in;}
@list l0:level6
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6";
mso-level-tab-stop:.8in;
mso-level-number-position:left;
margin-left:.8in;
text-indent:-.8in;}
@list l0:level7
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7";
mso-level-tab-stop:.9in;
mso-level-number-position:left;
margin-left:.9in;
text-indent:-.9in;}
@list l0:level8
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8";
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
margin-left:1.0in;
text-indent:-1.0in;}
@list l0:level9
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8\.%9";
mso-level-tab-stop:1.1in;
mso-level-number-position:left;
margin-left:1.1in;
text-indent:-1.1in;}
@list l1
{mso-list-id:1860200171;
mso-list-template-ids:1400561736;}
@list l1:level1
{mso-level-text:%1;
mso-level-tab-stop:.3in;
mso-level-number-position:left;
margin-left:.3in;
text-indent:-.3in;}
@list l1:level2
{mso-level-text:"%1\.%2";
mso-level-tab-stop:.4in;
mso-level-number-position:left;
margin-left:.4in;
text-indent:-.4in;}
@list l1:level3
{mso-level-reset-level:level2;
mso-level-style-link:"Heading 3";
mso-level-text:"%1\.%2\.%3";
mso-level-tab-stop:.5in;
mso-level-number-position:left;
margin-left:.5in;
text-indent:-.5in;}
@list l1:level4
{mso-level-text:"%1\.%2\.%3\.%4";
mso-level-tab-stop:.6in;
mso-level-number-position:left;
margin-left:.6in;
text-indent:-.6in;}
@list l1:level5
{mso-level-text:"%1\.%2\.%3\.%4\.%5";
mso-level-tab-stop:.7in;
mso-level-number-position:left;
margin-left:.7in;
text-indent:-.7in;}
@list l1:level6
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6";
mso-level-tab-stop:.8in;
mso-level-number-position:left;
margin-left:.8in;
text-indent:-.8in;}
@list l1:level7
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7";
mso-level-tab-stop:.9in;
mso-level-number-position:left;
margin-left:.9in;
text-indent:-.9in;}
@list l1:level8
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8";
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
margin-left:1.0in;
text-indent:-1.0in;}
@list l1:level9
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8\.%9";
mso-level-tab-stop:1.1in;
mso-level-number-position:left;
margin-left:1.1in;
text-indent:-1.1in;}
@list l2
{mso-list-id:2077240681;
mso-list-template-ids:-762429638;}
@list l2:level1
{mso-level-text:%1;
mso-level-tab-stop:.3in;
mso-level-number-position:left;
margin-left:.3in;
text-indent:-.3in;}
@list l2:level2
{mso-level-text:"%1\.%2";
mso-level-tab-stop:.4in;
mso-level-number-position:left;
margin-left:.4in;
text-indent:-.4in;}
@list l2:level3
{mso-level-text:"%1\.%2\.%3";
mso-level-tab-stop:.5in;
mso-level-number-position:left;
margin-left:.5in;
text-indent:-.5in;}
@list l2:level4
{mso-level-text:"%1\.%2\.%3\.%4";
mso-level-tab-stop:.6in;
mso-level-number-position:left;
margin-left:.6in;
text-indent:-.6in;}
@list l2:level5
{mso-level-text:"%1\.%2\.%3\.%4\.%5";
mso-level-tab-stop:.7in;
mso-level-number-position:left;
margin-left:.7in;
text-indent:-.7in;}
@list l2:level6
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6";
mso-level-tab-stop:.8in;
mso-level-number-position:left;
margin-left:.8in;
text-indent:-.8in;}
@list l2:level7
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7";
mso-level-tab-stop:.9in;
mso-level-number-position:left;
margin-left:.9in;
text-indent:-.9in;}
@list l2:level8
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8";
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
margin-left:1.0in;
text-indent:-1.0in;}
@list l2:level9
{mso-level-text:"%1\.%2\.%3\.%4\.%5\.%6\.%7\.%8\.%9";
mso-level-tab-stop:1.1in;
mso-level-number-position:left;
margin-left:1.1in;
text-indent:-1.1in;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
-->
</style>
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Ramkumar,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>XMD can definitely be used to help debug a
kernel. I use it to dump registers and to dump memory. I’m
not sure on the TLB entries yet but will check into it. I’m sure
that XMD does not handle any virtual address to physical conversions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I use it to dump the log buff sometimes
when the kernel doesn’t come up. You may need to do a RST and then
you need to use the physical address rather than the virtual address (Address –
0xC0000000).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You can do a help in XMD.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>John<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
linuxppc-embedded-bounces+john.linn=xilinx.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+john.linn=xilinx.com@ozlabs.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Ramkumar J<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, March 12, 2008
9:15 AM<br>
<b><span style='font-weight:bold'>To:</span></b> linuxppc-embedded@ozlabs.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> XMD to debug Linux kernel
2.6</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Hi All,<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I need to dump the TLB entries, i-cache and d-cache entries on a ML-403
board ( I use a PowerPc based design) using the Xilinx Parallel-4 Cable. When
I download the zImage.elf using dow command on XMD, I m not able to access
the TLB and cache address special memory mappings as displayed by the XMD. I
suspect that XMD only allows the dump for sections inside the elf file. If its
true, then how to access the sections of kernel.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Could XMD be used to debug a linux kernel by dumping the registers,
TLBs, cache entries,etc. Am I missing anything. Any pointers would be very
helpful.<o:p></o:p></span></font></p>
</div>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Thanks
and Regards,<br>
Ramkumar<o:p></o:p></span></font></p>
</div>
</body>
</html>