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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 4 Mar 2019 15:47:44 -0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x24FlhSB10027106 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 Mar 2019 15:47:43 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4670EAC05B; Mon, 4 Mar 2019 15:47:43 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2CEA7AC059; Mon, 4 Mar 2019 15:47:43 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Mon, 4 Mar 2019 15:47:43 +0000 (GMT) From: Stefan Berger To: qemu-devel@nongnu.org Date: Mon, 4 Mar 2019 10:47:38 -0500 X-Mailer: git-send-email 2.17.2 In-Reply-To: <20190304154739.758486-1-stefanb@linux.vnet.ibm.com> References: <20190304154739.758486-1-stefanb@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19030415-2213-0000-0000-0000035DA88C X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010704; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000281; SDB=6.01169541; UDB=6.00611163; IPR=6.00950169; MB=3.00025830; MTD=3.00000008; XFM=3.00000015; UTC=2019-03-04 15:47:45 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19030415-2214-0000-0000-00005D8EBFCE Message-Id: <20190304154739.758486-2-stefanb@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-04_07:, , 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 mlxscore=0 impostorscore=0 mlxlogscore=844 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903040114 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PULL v1 1/2] tpm_tis: fix loop that cancels any seizure by a lower locality 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: peter.maydell@linaro.org, Stefan Berger Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Liam Merwick In tpm_tis_mmio_write() if the requesting locality is seizing access, any seizure by a lower locality is cancelled. However the loop doing the seizure had an off-by-one error and the locality immediately preceding the requesting locality was not being cleared. This is fixed by adjusting the test in the for loop to check the localities up to the requesting locality. Signed-off-by: Liam Merwick Reviewed-by: Stefan Berger Signed-off-by: Stefan Berger --- hw/tpm/tpm_tis.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c index fd6bb9b59a..61a130beef 100644 --- a/hw/tpm/tpm_tis.c +++ b/hw/tpm/tpm_tis.c @@ -624,7 +624,7 @@ static void tpm_tis_mmio_write(void *opaque, hwaddr add= r, } =20 /* cancel any seize by a lower locality */ - for (l =3D 0; l < locty - 1; l++) { + for (l =3D 0; l < locty; l++) { s->loc[l].access &=3D ~TPM_TIS_ACCESS_SEIZE; } =20 --=20 2.17.2