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Violators will be prosecuted; Mon, 19 Mar 2018 12:21:52 -0400 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w2JGLqVg38731944; Mon, 19 Mar 2018 16:21:52 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 109F012404C; Mon, 19 Mar 2018 13:24:02 -0400 (EDT) Received: from sbct-3.watson.ibm.com (unknown [9.47.158.153]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id EDB77124044; Mon, 19 Mar 2018 13:24:01 -0400 (EDT) From: Stefan Berger To: qemu-devel@nongnu.org Date: Mon, 19 Mar 2018 12:21:45 -0400 X-Mailer: git-send-email 2.5.5 In-Reply-To: <1521476505-30584-1-git-send-email-stefanb@linux.vnet.ibm.com> References: <1521476505-30584-1-git-send-email-stefanb@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18031916-0036-0000-0000-000002D30E04 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008703; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000254; SDB=6.01005383; UDB=6.00511825; IPR=6.00784666; MB=3.00020127; MTD=3.00000008; XFM=3.00000015; UTC=2018-03-19 16:21:53 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18031916-0037-0000-0000-000043B1C32E Message-Id: <1521476505-30584-2-git-send-email-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-03-19_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1803190183 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH] tpm: Set tpmRegValidSts flag to '1' in initialization X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcandre.lureau@redhat.com, Stefan Berger Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Fix the initialization of the tpmRegValidSts flag and set it to '1' during device reset without expecting a write to another register. This seems to also be the default behavior of real hardware. Signed-off-by: Stefan Berger --- hw/tpm/tpm_crb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c index d8917cb..114b66e 100644 --- a/hw/tpm/tpm_crb.c +++ b/hw/tpm/tpm_crb.c @@ -145,8 +145,6 @@ static void tpm_crb_mmio_write(void *opaque, hwaddr add= r, beenSeized, 0); ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE, locAssigned, 1); - ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE, - tpmRegValidSts, 1); break; } break; @@ -210,6 +208,8 @@ static void tpm_crb_reset(void *dev) =20 tpm_backend_reset(s->tpmbe); =20 + ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE, + tpmRegValidSts, 1); ARRAY_FIELD_DP32(s->regs, CRB_INTF_ID, InterfaceType, CRB_INTF_TYPE_CRB_ACTIVE); ARRAY_FIELD_DP32(s->regs, CRB_INTF_ID, --=20 2.5.5