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Wed, 27 May 2020 07:49:34 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 04R7mITS51380654 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 May 2020 07:48:18 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4B92FA4054; Wed, 27 May 2020 07:49:32 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 953E2A405B; Wed, 27 May 2020 07:49:31 +0000 (GMT) Received: from linux01.pok.stglabs.ibm.com (unknown [9.114.17.81]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 27 May 2020 07:49:31 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Subject: [PATCH v3 5/9] pc-bios: s390x: Rename and use PSW_MASK_ZMODE constant Date: Wed, 27 May 2020 03:49:16 -0400 Message-Id: <20200527074920.43669-6-frankja@linux.ibm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200527074920.43669-1-frankja@linux.ibm.com> References: <20200527074920.43669-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-05-27_02:2020-05-26, 2020-05-27 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=1 mlxlogscore=999 phishscore=0 malwarescore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 mlxscore=0 adultscore=0 clxscore=1015 priorityscore=1501 cotscore=-2147483648 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005270053 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=frankja@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/27 03:49:33 X-ACL-Warn: Detected OS = Linux 3.x [generic] [fuzzy] X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, KHOP_DYNAMIC=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action 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: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, cohuck@redhat.com, thuth@redhat.com, david@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" ZMODE has a lot of ambiguity with the ESAME architecture mode, but is actually 64 bit addressing. As PSW_MASK_64 is now effectively 33 bit long and the PSWLegacy struct has 2 32 bit members, let's also use a unsigned long pointer in dasd-ipl.c instead when oring the constant into a 8 byte PSW. Signed-off-by: Janosch Frank Reviewed-by: Pierre Morel Reviewed-by: David Hildenbrand --- pc-bios/s390-ccw/dasd-ipl.c | 5 ++--- pc-bios/s390-ccw/s390-arch.h | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/pc-bios/s390-ccw/dasd-ipl.c b/pc-bios/s390-ccw/dasd-ipl.c index 0fc879bb8e..0dbad051a2 100644 --- a/pc-bios/s390-ccw/dasd-ipl.c +++ b/pc-bios/s390-ccw/dasd-ipl.c @@ -206,7 +206,7 @@ static void run_ipl2(SubChannelId schid, uint16_t cutyp= e, uint32_t addr) */ void dasd_ipl(SubChannelId schid, uint16_t cutype) { - PSWLegacy *pswl =3D (PSWLegacy *) 0x00; + unsigned long *pswl =3D 0x0; uint32_t ipl2_addr; =20 /* Construct Read IPL CCW and run it to read IPL1 from boot disk */ @@ -229,7 +229,6 @@ void dasd_ipl(SubChannelId schid, uint16_t cutype) run_ipl2(schid, cutype, ipl2_addr); =20 /* Transfer control to the guest operating system */ - pswl->mask |=3D PSW_MASK_EAMODE; /* Force z-mode */ - pswl->addr |=3D PSW_MASK_BAMODE; /* ... */ + *pswl |=3D PSW_MASK_64; /* Force 64 bit addressing */ jump_to_low_kernel(); } diff --git a/pc-bios/s390-ccw/s390-arch.h b/pc-bios/s390-ccw/s390-arch.h index 5f36361c02..73852029d4 100644 --- a/pc-bios/s390-ccw/s390-arch.h +++ b/pc-bios/s390-ccw/s390-arch.h @@ -29,7 +29,7 @@ _Static_assert(sizeof(struct PSWLegacy) =3D=3D 8, "PSWLeg= acy size incorrect"); #define PSW_MASK_WAIT 0x0002000000000000ULL #define PSW_MASK_EAMODE 0x0000000100000000ULL #define PSW_MASK_BAMODE 0x0000000080000000ULL -#define PSW_MASK_ZMODE (PSW_MASK_EAMODE | PSW_MASK_BAMODE) +#define PSW_MASK_64 (PSW_MASK_EAMODE | PSW_MASK_BAMODE) =20 /* Low core mapping */ typedef struct LowCore { --=20 2.25.1