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



On 11/28/2012 03:46 PM, Konrad Rzeszutek Wilk wrote:
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.
I've already done that with my patch on the linux mailing list. The old frontend driver name was tpm_xenu.ko, the new one is xen-tpmfront.ko.

  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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