On Tue, 13 Oct 2015, John Snow wrote: > On 10/13/2015 11:55 AM, Fabio Fantoni wrote: > > I added ahci disk support in libxl and using it for week seems that was > > ok, after a reply of Stefano Stabellini seems that xen disk unplug > > support only ide disks: > > http://git.qemu.org/?p=qemu.git;a=commitdiff;h=679f4f8b178e7c66fbc2f39c905374ee8663d5d8 > > > > Today Paul Durrant told me that even if pv disk is ok also with ahci and > > the emulated one is offline can be a risk: > > http://lists.xenproject.org/archives/html/win-pv-devel/2015-10/msg00021.html > > > > > > I tried to take a fast look in qemu code but I not understand the needed > > thing for add the xen disk unplug support also for ahci, can someone do > > it or tell me useful information for do it please? > > > > Thanks for any reply and sorry for my bad english. > > > > I'm not entirely sure what features you need AHCI to support in order > for Xen to be happy. > > I'd guess hotplugging, but where I get confused is that IDE disks don't > support hotplugging either, so I guess I'm not sure sure what you need. > > Stefano, can you help bridge my Xen knowledge gap? Hi John,
we need something like hw/i386/xen/xen_platform.c:unplug_disks but that can unplug AHCI disk. And by unplug, I mean "make disappear" like pci_piix3_xen_ide_unplug does for ide.
