On Mon, May 07, 2018 at 02:36:30PM +0100, Peter Maydell wrote: > On 7 May 2018 at 13:11, Gerd Hoffmann <kra...@redhat.com> wrote: > >> This seems like a bit of an irritating reason to refuse to > >> allow multiple VGA devices though, since we could make > >> them work by having the vmstate be not-global. > > > > Multiple vga devices will also try to use the same isa vga > > ports. Seems that doesn't make qemu abort any more, which > > used to happen in older versions. > > Oh, good point. Shouldn't we be checking for that on > some other thing than whether global_vmstate is set here, > though? Otherwise it won't work consistently for the > vga devices which pass 'false'.
The only one which passes global_vmstate == false is "-device secondary-vga", and that does *not* register vga ioports (the registers can be accessed via mmio pci bar though). So, right now global_vmstate == "registers vga ioports", and I don't expect that to change. cheers, Gerd
