* Slutz, Donald Christopher (dsl...@verizon.com) wrote: > What is happening with this patch? I would like to use this code.
I need to rework it for the new machine types code; but it was pretty low down my list of priorities; but I can try and get a minute for it again. Dave > > -Don Slutz > > ________________________________________ > From: qemu-devel-bounces+don=cloudswitch....@nongnu.org > [qemu-devel-bounces+don=cloudswitch....@nongnu.org] on behalf of Gerd > Hoffmann [kra...@redhat.com] > Sent: Tuesday, May 20, 2014 6:10 AM > To: Richard W.M. Jones > Cc: m...@redhat.com; qemu-devel@nongnu.org; arm...@redhat.com; Dr. David Alan > Gilbert; aligu...@amazon.com; Anthony PERARD > Subject: Re: [Qemu-devel] [PATCH] -machine vmport=off: Allow disabling of > VMWare ioport emulation > > Hi, > > > It was disabled in this patch. The commit message is saying that > > vmport cannot work in Xen, but I'm not exactly clear why. > > > > commit 1611977c3d8fdbdac6090cbd1f5555cee4aed6d9 > > Author: Anthony PERARD <anthony.per...@citrix.com> > > Date: Tue May 3 17:06:54 2011 +0100 > > > > pc, Disable vmport initialisation with Xen. > > > > This is because there is not synchronisation of the vcpu register > > between Xen and QEMU, so vmport can't work properly. > > Ah, ok. The backdoor has side effects (writing the port does modify > vcpu registers). That is the bit which is problematic for xen. Scratch > the idea then. > > Original patch is fine. > > Reviewed-by: Gerd Hoffmann <kra...@redhat.com> > > cheers, > Gerd > > > -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
