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Re: [Xen-devel] [PATCH RFC] stubdom: Change vTPM shared page ABI



On Fri, Nov 23, 2012 at 11:04:06AM +0000, Ian Campbell wrote:
> On Tue, 2012-11-20 at 16:16 +0000, Fioravante, Matthew E. wrote:
> > This was something I've been wanting to do for a while so I'm very
> > happy you went ahead and fixed it yourself. Once you submit the linux
> > version I'll test it on my system.
> > 
> > Acked by: Matthew Fioravante <matthew.fioravante@xxxxxxxxxx>
> 
> Do we need to synchronise with anything else (Linux drivers?) or I can I
> just throw this into the tree once it is done?
> 
> Are we hanging any existing users of the tpm stuff out to dry? Could we
> get a feature-protocol-v2 flag in xenstore so users at least get an
> error message from either the front or backend to give a hint why it
> isn't working?

We could cop out and just name this new driver differently. Then
we would not have to deal with the older ones.

> 
> >  void send_response(tpmcmd_t* cmd, tpmif_t* tpmif)  {
> > -   tpmif_tx_request_t* tx;
> > -   int offset;
> > -   int i;
> > -   uint32_t domid;
> > -   int tocopy;
> > +   vtpm_shared_page_t* shr;
> > +   unsigned int offset;
> >     int flags;
> > +#ifdef TPMBACK_PRINT_DEBUG
> > +int i;
> > +#endif
> 
> Dodgy indentation? (I saw a bunch of these)
> 
> > - * Copyright (c) 2005, IBM Corporation
> > - *
> > - * Author: Stefan Berger, stefanb@xxxxxxxxxx
> > - * Grant table support: Mahadevan Gomathisankaran
> 
> Did you really remove everything these guys wrote?
> 
> > - * This code has been derived from tools/libxc/xen/io/netif.h
> > - *
> > - * Copyright (c) 2003-2004, Keir Fraser
> 
> I guess I can buy this bit no longer being true given that you reworked
> the whole protocol.
> 
> Ian
> 
> 
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> http://lists.xen.org/xen-devel
> 

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