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Thu, 13 Aug 2026 16:43:24 +0000 (GMT) Received: from [9.111.39.35] (unknown [9.111.39.35]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 13 Aug 2026 16:43:24 +0000 (GMT) Message-ID: Date: Thu, 13 Aug 2026 18:43:24 +0200 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] kvm: s390: Improve floating IRQ injection behavior To: Janosch Frank , kvm@vger.kernel.org Cc: imbrenda@linux.ibm.com, linux-s390@vger.kernel.org References: <20260813154040.73437-1-frankja@linux.ibm.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <20260813154040.73437-1-frankja@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=XqfK/1F9 c=1 sm=1 tr=0 ts=6a7df431 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=vhUChTvZ1_M9NrF1dGAA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEzMDExOSBTYWx0ZWRfXylf6wl5Z3kwo cSj2FDWspK12nlyeu/gktsg3sgLXitQx5SdYfaMXPhWu4hDRPVyrZQp7XeOpRL9hapfeU+sMoaE pJ3pvPUkB0ujFvHAWJFIb8XHjhyUFBUzwYheaU1PKm7WIzW/N8opOuRKzB6m9q5uwTNurdWxA0i vo7mxAm3qwxfM35vOorK2gue/gtu3WrOfMAXVhR6j/3FsMbDb9woDIIOGBmsflNIuDhHDfdcHMP vgehQOPulvrUpUQqq3qFeAnb5pRleWseUPigQ+i4Bi7kTjVzWkQU/K8aWMl+rxwF8L0iWD4Yxjt O1V7Rtdg6t0vyeLltHxKOT9Ave44hOPajrzMbe7RfU64A/2e2FWCyw9cjg23zsKf7TQUaR3b12+ Jaw5ASdzp/eFa9OcrSfs9eUX4Cu2OZ4AyI2WEWhxxXni7D8khonzKNlPJ6O4zgMIK0QLXqK9bt0 HmGMSnCxveJYSjPX8jw== X-Proofpoint-ORIG-GUID: 09UimnzEgnZiMvf7nGIp6Lsg3y0kSHGX X-Proofpoint-GUID: 09UimnzEgnZiMvf7nGIp6Lsg3y0kSHGX X-Proofpoint-Spam-Info: AW1haW4tMjYwODEzMDExOSBTYWx0ZWRfXyfel2LQg7H8Q BVeMiZY3xc7cow3WkEjAhaZxg08X+me4ql4ohrAFyqWRT0QKHO4jZZMBV829F3PCIX/JU8d+gc7 OdX3FEIkiUhILxHZmRSdCvA2LZc1GaQ= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-13_05,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 adultscore=0 malwarescore=0 clxscore=1015 suspectscore=0 priorityscore=1501 impostorscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608130119 Am 13.08.26 um 16:56 schrieb Janosch Frank: kvm_s390_set_cpuflags(vcpu, CPUSTAT_WAIT); > @@ -1933,7 +1964,8 @@ static void __floating_irq_kick(struct kvm *kvm, u64 type) > for (sigcpu = kvm->arch.float_int.last_sleep_cpu; ; sigcpu++) { > sigcpu %= online_vcpus; > dst_vcpu = kvm_get_vcpu(kvm, sigcpu); > - if (!is_vcpu_stopped(dst_vcpu)) > + if (!is_vcpu_stopped(dst_vcpu) && > + deliverable_irqs(dst_vcpu)) We have the type. Wouldnt it be better to actually check if type is deliverable?