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From: | Sebastian Herbszt |
Subject: | [Qemu-devel] Re: [PATCH v2 1/6] Use IO port for qemu<->guest BIOScommunication. |
Date: | Mon, 25 Aug 2008 20:53:05 +0200 |
Jamie Lokier wrote:
What about 410?Whatever port is chosen, it should be one which common and rare operating systems, recent and ancient, don't "probe" to look for non-PNP ISA devices - unless the protocol requires a magic sequence to be woken (and goes back to sleep following a CPU reset). I quick Google suggests 0x410 is most commonly used by PCMCIA ethernet cards. I've no idea if they are probed using that port.
Ralf Brown's "Ports List, part 2 of 3" says "PORT 040A-043F - Intel 82378ZB embedded DMA controller". - Sebastian
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