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Fri, 14 Jan 2022 11:20:05 +0000 (GMT) Received: from p-imbrenda (unknown [9.145.8.156]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 14 Jan 2022 11:20:05 +0000 (GMT) Date: Fri, 14 Jan 2022 12:19:00 +0100 From: Claudio Imbrenda To: Janosch Frank Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, david@redhat.com, thuth@redhat.com, cohuck@redhat.com, nrb@linux.ibm.com Subject: Re: [kvm-unit-tests PATCH 5/5] s390x: firq: Fix sclp buffer allocation Message-ID: <20220114121900.540bf127@p-imbrenda> In-Reply-To: <20220114100245.8643-6-frankja@linux.ibm.com> References: <20220114100245.8643-1-frankja@linux.ibm.com> <20220114100245.8643-6-frankja@linux.ibm.com> Organization: IBM X-Mailer: Claws Mail 3.18.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: tqgk-skTUEjNLS4XtN9JzGB19lXedfx7 X-Proofpoint-ORIG-GUID: Uex3p1Yi7nFrxUGsc17f6nXWbIidTR5b X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-01-14_04,2022-01-14_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 adultscore=0 impostorscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 spamscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2201140074 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On Fri, 14 Jan 2022 10:02:45 +0000 Janosch Frank wrote: > We need a 32 bit address for the sclp buffer so let's use a page from > the first 31 bits. > > Signed-off-by: Janosch Frank Reviewed-by: Claudio Imbrenda > --- > s390x/firq.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/s390x/firq.c b/s390x/firq.c > index 1f877183..a0ef1555 100644 > --- a/s390x/firq.c > +++ b/s390x/firq.c > @@ -87,7 +87,7 @@ static void test_wait_state_delivery(void) > */ > while(smp_sense_running_status(1)); > > - h = alloc_page(); > + h = alloc_pages_flags(1, AREA_DMA31); > h->length = 4096; > ret = servc(SCLP_CMDW_READ_CPU_INFO, __pa(h)); > if (ret) {