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Thu, 31 Oct 2024 15:01:48 +0000 (GMT) Message-ID: <8a9aa0c1-ff20-4d01-8884-590f77a13758@de.ibm.com> Date: Thu, 31 Oct 2024 16:01:48 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/1] s390/kvm: mask extra bits from program interrupt code To: Claudio Imbrenda , linux-kernel@vger.kernel.org Cc: nsg@linux.ibm.com, nrb@linux.ibm.com, frankja@linux.ibm.com, seiden@linux.ibm.com, hca@linux.ibm.com, agordeev@linux.ibm.com, gor@linux.ibm.com, kvm@vger.kernel.org, linux-s390@vger.kernel.org References: <20241031120316.25462-1-imbrenda@linux.ibm.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <20241031120316.25462-1-imbrenda@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: NcFY3BJBVtvUSVpHTqWGUqTyIsI_ZUED X-Proofpoint-GUID: NcFY3BJBVtvUSVpHTqWGUqTyIsI_ZUED X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 bulkscore=0 mlxlogscore=832 clxscore=1011 priorityscore=1501 suspectscore=0 lowpriorityscore=0 mlxscore=0 impostorscore=0 malwarescore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410310113 Am 31.10.24 um 13:03 schrieb Claudio Imbrenda: > The program interrupt code has some extra bits that are sometimes set > by hardware for various reasons; those bits should be ignored when the > program interrupt number is needed for interrupt handling. > > Fixes: ce2b276ebe51 ("s390/mm/fault: Handle guest-related program interrupts in KVM") > Reported-by: Christian Borntraeger > Signed-off-by: Claudio Imbrenda seems to fix my issue: Tested-by: Christian Borntraeger > --- > arch/s390/kvm/kvm-s390.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c > index 8b3afda99397..f2d1351f6992 100644 > --- a/arch/s390/kvm/kvm-s390.c > +++ b/arch/s390/kvm/kvm-s390.c > @@ -4737,7 +4737,7 @@ static int vcpu_post_run_handle_fault(struct kvm_vcpu *vcpu) > if (kvm_s390_cur_gmap_fault_is_write()) > flags = FAULT_FLAG_WRITE; > > - switch (current->thread.gmap_int_code) { > + switch (current->thread.gmap_int_code & PGM_INT_CODE_MASK) { > case 0: > vcpu->stat.exit_null++; > break;