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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 25 Feb 2020 11:33:21 -0000 Received: from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com [9.149.105.60]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01PBXLwh2032006 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 25 Feb 2020 11:33:21 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E88B74203F; Tue, 25 Feb 2020 11:33:20 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9FABA4204C; Tue, 25 Feb 2020 11:33:20 +0000 (GMT) Received: from localhost.localdomain (unknown [9.145.153.129]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 25 Feb 2020 11:33:20 +0000 (GMT) Subject: Re: [PATCH v4 06/16] s390x: protvirt: KVM intercept changes To: David Hildenbrand , qemu-devel@nongnu.org References: <20200220125638.7241-1-frankja@linux.ibm.com> <20200220125638.7241-7-frankja@linux.ibm.com> <2f1aabd4-426c-6314-0dd9-1817853adbc3@redhat.com> From: Janosch Frank Autocrypt: addr=frankja@linux.ibm.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <2f1aabd4-426c-6314-0dd9-1817853adbc3@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Qjcl6bzaWThuNFz49CYOAHinr6CegYMkP" X-TM-AS-GCONF: 00 x-cbid: 20022511-0020-0000-0000-000003AD681A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20022511-0021-0000-0000-000022057E1E Message-Id: <2dc9d39d-1087-e2ab-bfcb-ce98f06de111@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-25_03:2020-02-21, 2020-02-25 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 bulkscore=0 impostorscore=0 adultscore=0 phishscore=0 malwarescore=0 mlxscore=0 suspectscore=0 mlxlogscore=999 lowpriorityscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002250094 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, mihajlov@linux.ibm.com, cohuck@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Qjcl6bzaWThuNFz49CYOAHinr6CegYMkP Content-Type: multipart/mixed; boundary="xfjOaqaIzZ2ERnLY1d4n5Zzv3izn33b52" --xfjOaqaIzZ2ERnLY1d4n5Zzv3izn33b52 Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2/25/20 11:01 AM, David Hildenbrand wrote: > On 20.02.20 13:56, Janosch Frank wrote: >> Secure guests no longer intercept with code 4 for an instruction >> interception. Instead they have codes 104 and 108 for secure >> instruction interception and secure instruction notification >> respectively. >> >> The 104 mirrors the 4 interception. >> >> The 108 is a notification interception to let KVM and QEMU know that >> something changed and we need to update tracking information or >> perform specific tasks. It's currently taken for the following >> instructions: >> >> * stpx (To inform about the changed prefix location) >> * sclp (On incorrect SCCB values, so we can inject a IRQ) >> * sigp (All but "stop and store status") >> * diag308 (Subcodes 0/1) >> >> Signed-off-by: Janosch Frank >> --- >> target/s390x/kvm.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c >> index 1d6fd6a27b..eec0b92479 100644 >> --- a/target/s390x/kvm.c >> +++ b/target/s390x/kvm.c >> @@ -115,6 +115,8 @@ >> #define ICPT_CPU_STOP 0x28 >> #define ICPT_OPEREXC 0x2c >> #define ICPT_IO 0x40 >> +#define ICPT_PV_INSTR 0x68 >> +#define ICPT_PV_INSTR_NOTIFICATION 0x6c >> =20 >> #define NR_LOCAL_IRQS 32 >> /* >> @@ -1693,6 +1695,8 @@ static int handle_intercept(S390CPU *cpu) >> (long)cs->kvm_run->psw_addr); >> switch (icpt_code) { >> case ICPT_INSTRUCTION: >> + case ICPT_PV_INSTR: >> + case ICPT_PV_INSTR_NOTIFICATION: >> r =3D handle_instruction(cpu, run); >> break; >> case ICPT_PROGRAM: >> >=20 > Reviewed-by: David Hildenbrand >=20 Thanks! --xfjOaqaIzZ2ERnLY1d4n5Zzv3izn33b52-- --Qjcl6bzaWThuNFz49CYOAHinr6CegYMkP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEwGNS88vfc9+v45Yq41TmuOI4ufgFAl5VBgAACgkQ41TmuOI4 ufizEQ/+L6UlhkhyAd7IBIb7PGWmOX8jS3qIB3Ocg/vxjnl2ZTbTiog+IDmqhZAa YyvEtSfEPoe5zrNSW8A8f0yvjbGVwWfAmGraDJuc0SnlufMRRtoEkkFIFL2iCCZY bzDOaQmuQfIGRhSz02U3B+rCAB8MfpDeRP8Jm170WOVj1N/nPliGgC1nSfBH9X8m HqPyIAcJBHvLV7hLu3ATAoV2NqlhrVbfS0CV8q/q9ylhsIZZBJaT6L4pwaoX5MDB 4W0cXhNjeA30mTq9PGK7rpw2HWRxm4L7hSW8i/N5GbnAXHrVbOPDaepGcmTaawho s/pe3QHGD4h2WPuB6NTrDOUPQ/XMphoLdg6DovQoZZqIaXUFEwfo3r+91pDLlpNH V7ACVinWdqee51p1Akx+srmeeFg9w1ctK5T6Jxr8Z8pOnj4j2IK8mq4CqvxGg6uA TbKBQ8nUHiPW6jShqG7PKXzaLnCvNNmu2YKDN1zrziJ65C6B8maQ+Z+Y6mCaLxfY Bz8kmnTqfHL3hu0VJDFabMMbBfvEAlLKDXaCgrAS10RgVxOpK3DvCYmd4hQeF1Cr 02K3GGkgUv4K/haDuRmFTPwYKZaU6udPHDCIKqwO4LloikyBcEJgmlNOykyPqQwM qYdiWHKVK+eq9+xXO26Psq6DAd0Yxg1Dowf71xkFMr+NiGCA7Z4= =G1jX -----END PGP SIGNATURE----- --Qjcl6bzaWThuNFz49CYOAHinr6CegYMkP--