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);
+ }
}
/****************************************************************************/
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next prev parent 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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