> > I think it would be great to maintain compatibility with the binary-only > > versions of the vm tools though. > > But you're changing the semantics of the x86 instruction set. You > potentially break a real operating system. It also eliminates the > possibility of nesting with something like kqemu because you can't trap > all PIO operations.
Maybe have a commandline flag, and have it switched off by default? Or, even better, would be to detect valid vmware tools behaviour and switch it on iff that happened; the default being to behave normally for OSes that aren't running the VMware tools.. Cheers, Mark > Regards, > > Anthony Liguori > > > Regards, > > > > Alex > > > > ----- Ursprüngliche Nachricht ----- > > Von: Anthony Liguori <[EMAIL PROTECTED]> > > Gesendet: Sonntag, 20. Januar 2008 22:40 > > An: qemu-devel@nongnu.org > > Betreff: Re: [Qemu-devel] VMport patch > > > > Filip Navara wrote: > >> Hello, > >> > >> the current version of QEMU emulates the VMware backdoor I/O port and > >> it works quite well. Unfortunately it doesn't emulate the VMware > >> behavior of ignoring the I/O permissions when accessing this special > >> port. The attached patch corrects it. It's important to ignore the > >> permissions, so that user mode VMware tools can communicate to the > >> backdoor. = > > > > I really dislike that VMware relies on this. It's very hard to > > implement in kqemu or KVM. I think it would be better to modify > > open-vm-tools than to modify QEMU. > > > > Regards, > > > > Anthony Liguori > > > >> Best regards, > >> Filip Navara -- Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)
