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From: Kouichi Yasaki <yasaki.kouichi@jp.fujitsu.com>
To: xen-devel@lists.xensource.com
Subject: [PATCH][BIOS]Fix TPMD and QEMU connection
Date: Thu, 20 Dec 2007 09:53:11 +0900	[thread overview]
Message-ID: <4769BCF7.1040409@jp.fujitsu.com> (raw)
In-Reply-To: <46EF1617.8020705@jp.fujitsu.com>

[-- Attachment #1: Type: text/plain, Size: 433 bytes --]

Hi,

In HVM domain, MA_Transmit function in tcgbios sometimes become an error
(TCG_NO_RESPONSE). The cause of the error is not to make connection of
QEMU and TPMD instance within a timeout of MA_Transmit function.

Before the MA_Transmit function was called, the attached patch corrected so
that connection of QEMU and TPMD might be completed.

Signed-off-by: Kouichi YASAKI <yasaki.kouichi@jp.fujitsu.com>

Thanks
  Kouichi YASAKI


[-- Attachment #2: tpm_tis_fix.diff --]
[-- Type: text/x-patch, Size: 507 bytes --]

diff -r d9ab9eb2bfee tools/ioemu/hw/tpm_tis.c
--- a/tools/ioemu/hw/tpm_tis.c	Sat Dec 15 18:29:27 2007 +0000
+++ b/tools/ioemu/hw/tpm_tis.c	Mon Dec 17 19:46:42 2007 +0900
@@ -904,6 +904,10 @@ void tpm_tis_init(SetIRQFunc *set_irq, v
     memset(s->buffer.buf,0,sizeof(s->buffer.buf));
 
     register_savevm("tpm-tis", 0, 1, tpm_save, tpm_load, s);
+
+    while(!IS_COMM_WITH_VTPM(s)){
+       open_vtpm_channel(s);
+    }
 }
 
 /****************************************************************************/

[-- Attachment #3: Type: text/plain, Size: 138 bytes --]

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  reply	other threads:[~2007-12-20  0:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-18  0:04 [PATCH][VTPM] re-send:Fix vTPM function in HVM domain Kouichi Yasaki
2007-12-20  0:53 ` Kouichi Yasaki [this message]
2007-12-20  2:20   ` [PATCH][BIOS]Fix TPMD and QEMU connection Stefan Berger
2007-12-20  3:12     ` Kouichi Yasaki

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