Gregory Haskins wrote: > This patch initializes the PIIX3 IDE controllers IDE channels as enabled. > They were previously unconfigured by QEMU. > > IDE devices have been broken on our local lab systems since the introduction > of QEMU 0.9.0 (KVM-14). Tracing the Linux driver for PIIX3 initialization > revealed that the "enabled" bits (bit 7 in the PCI-CONFIG space at address > 0x41 and 0x43, port 0 and 1 respectively) were not set. In a bare-metal > system, it would typically be the role of the BIOS to enable something like > this, so this solution may be a hack. I speculate that the real bug may be > something introduced into Bochs about the same time as the 0.9.0 deployment, > but I have not investigated this. Nonetheless, unless there is a specific > run-time switch to enable/disable the IDE channels, initializing them in QEMU > vs Bochs is probably 6 of one, half dozen of the other. > >
Is the bug present in stock qemu-0.9.0? I'm no acpi expert, but this may be related to our acpi breakage. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kvm-devel
