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Re: [Xen-devel] [PATCH for-4.5 v6 00/16] Xen VMware tools support

On 09/22/2014 02:56 PM, Ian Campbell wrote:
On Sat, 2014-09-20 at 14:07 -0400, Don Slutz wrote:

I picked this subset to start with because it only has changes in

Some of this code is already in QEMU
As I suggest in my reply to one for the rpc port patches it's not clear
that any of this needs to be in Xen rather than qemu in the first place.

I came to think this even more once I saw the save/restore support...

I don't think qemu can get notified on either cpuid or #GP faults, can it?

A big chunk of the functionality here is to allow a userspace process to transparently make the "hypercalls" without the OS needing to explicitly give it access to the IO space, by trapping the resulting #GP faults and checking to see if they are IO instructions . If that's functionality we think is important, then it will have to be done in Xen, I think.


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