Re: [Qemu-devel] [PATCH for-1.6] pc: fix up pc initialization

[Paolo Bonzini]

Il 13/08/2013 17:57, Andreas Färber ha scritto:
> Am 13.08.2013 17:27, schrieb Paolo Bonzini:
>> All that should happen is that after migration you will not get panic
>> notifications on the destination.
> 
> Well, how does the Linux driver cope with pvpanic device present on boot
> but not present on panic? ISA PIO is not usually expected to be
> hot-unplugged. ;)

On panic, the driver does a single "outb".  That outb will simply go to
the bitbucket.

Paolo