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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=pmorel@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: thuth@redhat.com, pmorel@linux.ibm.com, david@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, rth@twiddle.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The Measurement Block Origin inside the SCHIB is used when Measurement Block format 1 is in used and must be aligned on 64 bytes otherwise an operand exception is recognized when issuing the Modify Sub CHannel (MSCH) instruction. Signed-off-by: Pierre Morel Reviewed-by: Thomas Huth --- target/s390x/ioinst.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/s390x/ioinst.c b/target/s390x/ioinst.c index a412926d27..1ee11522e1 100644 --- a/target/s390x/ioinst.c +++ b/target/s390x/ioinst.c @@ -121,6 +121,12 @@ static int ioinst_schib_valid(SCHIB *schib) if (be32_to_cpu(schib->pmcw.chars) & PMCW_CHARS_MASK_XMWME) { return 0; } + /* for MB format 1 bits 26-31 of word 11 must be 0 */ + /* MBA uses words 10 and 11, it means align on 2**6 */ + if ((be16_to_cpu(schib->pmcw.chars) & PMCW_CHARS_MASK_MBFC) && + (be64_to_cpu(schib->mba) & 0x03fUL)) { + return 0; + } return 1; } =20 --=20 2.25.1