Re: Discussion: ACPI selective IRQ blacklist
From: Andrew de Quincey <hidden>
Date: 2003-09-04 01:15:23
On Wednesday 03 September 2003 23:16, Andrew de Quincey wrote:
So: If a motherboard is dodgy and IS in the bad-routing-blacklist, ACPI will not be used for PCI routing. If a motherboard is dodgy and is NOT in the bad-routing-blacklist, the fallback to picmode code should catch it. If the user then wants APIC with ACPI, they report the issue and the board is added to the bad-routing-blacklist.
On further thought, I realise this isn't future proof. This relies on the existence of legacy BIOS tables (e.g. MPBIOS). My machine for one does not have such a table; instead it relies on ACPI. In the meantime, VIA have kindly sent me the docs I need. It turns out the PCI routing entries for the problem BIOSes are wrong. The south bridge chip in question is the VT8235 (device ID 0x1337), which explains the spread of motherboards I've been seeing. I have a solution in mind; should have something in the next few days. ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf