<div>Michael,</div><div><br></div><div>Thanks. My target is a Televideo TC7010. IPXE works fine when the PMM interface is disabled in seabios. It also works fine with qemu as target. The problem may lie with seabios :</div>
<div><br></div><div><div>SeaBIOS (version pre-0.6.2-20110211_070652-llocalhost.localdomain)</div><div>.</div><div>.</div><div>.</div><div>.</div><div>Searching CBFS for prefix pci100b,0020.rom</div><div>Copying data 60928@0xfffd4f38 to 192512@0x000c1000</div>
<div>Running option rom at c100:0003</div><div><br></div><div><br></div><div><br></div><div><br></div><div>iPXE (<a href="http://ipxe.org">http://ipxe.org</a>) 00:15.0 C100 PCI2.10 PnP PMMpmm call arg1=1</div><div>pmm01: handle=18ae1000</div>
<div>pmm call arg1=0</div><div>pmm00: length=ed5 handle=18ae1000 flags=2</div><div>+01DBEBD0pmm call arg1=1</div><div>pmm01: handle=18ae2004</div></div><div><br></div><div><br></div><div><br></div><div><br></div><div>Thanks</div>
<div><br></div><div>Peter</div><div><br></div><br><br><div class="gmail_quote">On Fri, Feb 11, 2011 at 10:39 PM, Michael Brown <span dir="ltr"><<a href="mailto:mbrown@fensystems.co.uk">mbrown@fensystems.co.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Saturday 12 Feb 2011 01:38:41 Peter Bannis wrote:<br>
> iPXE hangs in a PMM call when using seabios with PMM enabled.<br>
><br>
> How can I enable DEBUG messages for PMM calls in ipxe?<br>
<br>
</div>There are no debug messages available at that point, beyond what already gets<br>
printed to the screen. Your best bet is probably to run inside bochs, add a<br>
magic breakpoint ("xchgw %bx, %bx") at the start of get_pmm() in romprefix.S,<br>
and single-step through that routine.<br>
<font color="#888888"><br>
Michael<br>
</font></blockquote></div><br>