Answering comment #4: > What I don't understand is ppc64 for IBM machine emulation, but qemu ppc64 > can't support AIX most of the time, but can support Linux on power very well.
QEMU doesn't implement the full PAPR specification. Historically we've only added the bits that are essential for a Linux guest to be happy. AIX 5.1 is fairly old and neither IBM, nor the QEMU community invested time and effort in getting it to work under QEMU. AIX being a closed source OS certainly didn't help things to go forward. Things have changed recently though. IBM added virtio drivers and some workarounds to AIX, as well some fixes to QEMU. Latest AIX 7.2 releases should now be able to run under QEMU with a POWER8 or newer CPU model. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1853083 Title: qemu ppc64 4.0 boot AIX5.1 hung Status in QEMU: Incomplete Bug description: When boot AIX5.1 from cdrom device, qemu hung there, no further info is displayed and cpu consumption is high. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1853083/+subscriptions
