<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I was hoping I could use PCI Passthrough with an old Apple OEM Geforce 6600 PCI-E card, as the display device, but I’m not having any luck.<div class=""><br class=""></div><div class="">Openbios seems to have an error” Can not manage “VGA controller’ PCI device type ‘display’</div><div class="">10de 141 ( 3 0 0 )</div><div class=""><br class=""></div><div class="">I’m assuming that Openbios is not reading the Option Rom of the card, but I’m not sure why.</div><div class=""><br class=""></div><div class="">I’m having trouble checking to see if Openbios can read the Rom of the card, I’m, sure I’m not doing it right, could someone offer a little guidance?</div><div class=""><br class=""></div><div class=""><a href="http://mirror.informatimago.com/next/developer.apple.com/technotes/tn/tn2000.html" class="">http://mirror.informatimago.com/next/developer.apple.com/technotes/tn/tn2000.html</a></div><div class=""><br class=""></div><div class="">>dev / ls</div><div class="">>dev pci</div><div class="">>dev @10</div><div class="">>.properties</div><div class="">>” ..” find-device open</div><div class="">>.</div><div class=""><br class=""></div><div class="">This is where, I think it should return ffffffff, however it returns -1.</div><div class=""><br class=""></div><div class="">I was thinking “-1” was 0xffffffff?</div><div class=""><br class=""></div><div class="">Here is where I’m getting stuck:</div><div class=""><br class=""></div><div class="">>1180e config-b@ config-b@ undefined word.</div><div class=""><br class=""></div><div class="">Can anyone offer what I’m doing wrong, should I have another value for “1180e”?</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class="">The address </span><tt style="font-size: 10px;" class="">1180e</tt><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class=""> is the Configuration Space address we want to read. The word </span><tt style="font-size: 10px;" class="">config-b@</tt><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class=""> reads a byte from this address. The </span><tt style="font-size: 10px;" class="">.</tt><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class=""> word displays the top item on the stack, which is the Header Type register. Since this is a Header Type Zero, we know the expansion ROM BAR is at offset </span><code style="font-family: "Courier New", monospace; color: rgb(25, 38, 66);" class="">0x30</code><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class="">.</span></div><div class=""><span style="font-family: geneva, helvetica, arial, sans-serif; font-size: 10px; background-color: rgb(255, 255, 255);" class=""><br class=""></span></div><div class=""><font face="geneva, helvetica, arial, sans-serif" size="1" class="">Thanks</font></div></body></html>