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(unknown [9.114.12.104]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 24 Mar 2023 12:05:55 +0000 (GMT) From: Janosch Frank To: kvm@vger.kernel.org Cc: thuth@redhat.com, imbrenda@linux.ibm.com, nrb@linux.ibm.com Subject: [kvm-unit-tests PATCH v2 1/3] lib: s390x: Introduce UV validity function Date: Fri, 24 Mar 2023 12:04:29 +0000 Message-Id: <20230324120431.20260-2-frankja@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230324120431.20260-1-frankja@linux.ibm.com> References: <20230324120431.20260-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: vScXkabGjFUMxQrevJvyOvH9QnotMa-D X-Proofpoint-ORIG-GUID: YOR7P7whntbNrYdJCfxUxEKmoqdAK5zZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-24_06,2023-03-24_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 impostorscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 suspectscore=0 phishscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2303240099 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org PV related validities are in the 0x20** range but the last byte might be implementation specific, so everytime we check for a UV validity we need to mask the last byte. Let's add a function that checks for a UV validity and returns a boolean. Signed-off-by: Janosch Frank --- lib/s390x/uv.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/s390x/uv.h b/lib/s390x/uv.h index 5fe29bda..78b979b7 100644 --- a/lib/s390x/uv.h +++ b/lib/s390x/uv.h @@ -35,4 +35,11 @@ static inline void uv_setup_asces(void) lctlg(13, asce); } +static inline bool uv_validity_check(struct vm *vm) +{ + uint16_t vir = sie_get_validity(vm); + + return vm->sblk->icptcode == ICPT_VALIDITY && (vir & 0xff00) == 0x2000; +} + #endif /* UV_H */ -- 2.34.1