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Tue, 15 Apr 2025 14:05:09 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2B8735805C; Tue, 15 Apr 2025 14:05:08 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.248.247]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 15 Apr 2025 14:05:08 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=vGKanFs/llgf5AvvC KwDpFDL2TMYbQ4sUcJ+mfE1oNg=; b=tme+vUqLqBr7+R6wqB2oJMmp0mSc7x7oA UNs1OoduyJz4qlncMp6fyqSXU59WNqOiR9CBEIdqsZaV0FXhRw3surG3ldQ6+Ayp 48V1kKD2dW600wCU9uXNPyl6VzP+4uspBHNF0KipM9kc5bpSYzH+tggGvfpMilmv e5n+KAqgh59n6MAhHSU+SDOhFOBrY+pvpYD3mubARNL+ogs41OPThf/9DVYD66j2 xUSie+wI8L6t2+ubi2AGQjDJmg89iJsqEeA1L+/dC80ck9Ob8+L41oV4462Bt1r1 yFkpjCcCbGwZaD3mz1xzy0+H1iFYyqJq9ZpeiJmjWQP2NE7TdCn9g== From: Rorie Reyes To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: pbonzini@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, jjherne@linux.ibm.com, borntraeger@linux.ibm.com, alex.williamson@redhat.com, clg@redhat.com, thuth@redhat.com, akrowiak@linux.ibm.com, rreyes@linux.ibm.com Subject: [RFC PATCH v5 1/5] linux-headers: NOTFORMERGE - placeholder uapi updates for AP config change Date: Tue, 15 Apr 2025 10:05:02 -0400 Message-ID: <20250415140506.1516-2-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250415140506.1516-1-rreyes@linux.ibm.com> References: <20250415140506.1516-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Lc_P0H-wkzFEFfGC5BW9fJNf5S-NBFIY X-Proofpoint-GUID: Lc_P0H-wkzFEFfGC5BW9fJNf5S-NBFIY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-15_06,2025-04-15_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=954 impostorscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504150099 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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=rreyes@linux.ibm.com; helo=mx0b-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1744725978289019100 Content-Type: text/plain; charset="utf-8" This patch adds enumeration constant VFIO_AP_CFG_CHG_IRQ_INDEX to specify an IRQ index for signaling that a change has been made to the guest's AP configuration. This is a placeholder for QEMU patches that use this value since it is a linux-headers update which includes changes that aren't merged into the kernel. Linux-headers patches should be generated using scripts/update-linux-headers.sh. Signed-off-by: Rorie Reyes --- linux-headers/linux/vfio.h | 1 + 1 file changed, 1 insertion(+) diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index 1b5e254d6a..d0426b5ec0 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -671,6 +671,7 @@ enum { */ enum { VFIO_AP_REQ_IRQ_INDEX, + VFIO_AP_CFG_CHG_IRQ_INDEX, VFIO_AP_NUM_IRQS }; =20 --=20 2.48.1 From nobody Thu Dec 18 22:22:54 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1744726026; cv=none; d=zohomail.com; s=zohoarc; b=hKoQiAPig1xJamsAPWHXGW3+aOY4BwWS+hAjicvvkHryRSSjO+5V5pCtvTAljyw2kj9r2meoHJk6UMqWLb7O4FTeQaJB4NzSda1fQzT6Wr3K92M3j2Wu+jTTAVQrwQ+WOL+cNq+6HmruwV4g8llvDmCHCvJVl79px/36GTt7ap4= ARC-Message-Signature: i=1; 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a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=DbGe6NBfmik512jP0 vpRGSQqkwwS4t6t23BBrq4fQ2Q=; b=UEgjPFzpoLDF+cXvy0+sIPLlW78LehhDB YmAwVHf3FXsMWG+llAtbypc4PAzs3Fql+pkTL3pyAVb6dP1y8PYBe42r4aDRHR5s Uo8fqjiuV4N8kHAaG++L3Jb4gM28l4zPmnilNrhpa72E9ko9m5isl7Uc0tJPf8Re x1zAfEtiq/FzDJprbtNdshNH0PhikFv6hUiix9/UG/piw2GavGLHJPUIx61ecxm8 sqKZn4H53t3flhrZD7MG1hBjQqJKMAc8wEgPskOmY336aZfVovqxBH3+LGNYbve8 afT9EuQPNa6RELLJzt+yYEK9BcfwdLGmbhykFEXZhPVQ6fGrFAiDw== From: Rorie Reyes To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: pbonzini@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, jjherne@linux.ibm.com, borntraeger@linux.ibm.com, alex.williamson@redhat.com, clg@redhat.com, thuth@redhat.com, akrowiak@linux.ibm.com, rreyes@linux.ibm.com Subject: [RFC PATCH v5 2/5] hw/vfio/ap: notification handler for AP config changed event Date: Tue, 15 Apr 2025 10:05:03 -0400 Message-ID: <20250415140506.1516-3-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250415140506.1516-1-rreyes@linux.ibm.com> References: <20250415140506.1516-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: E8deRSpccBL-Ef-xogDgY6oGZFrSSh7n X-Proofpoint-GUID: E8deRSpccBL-Ef-xogDgY6oGZFrSSh7n X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-15_06,2025-04-15_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 mlxscore=0 bulkscore=0 clxscore=1015 spamscore=0 adultscore=0 mlxlogscore=999 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504150099 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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=rreyes@linux.ibm.com; helo=mx0b-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1744726027062019000 Content-Type: text/plain; charset="utf-8" Register an event notifier handler to process AP configuration change events by queuing the event and generating a CRW to let the guest know its AP configuration has changed Signed-off-by: Rorie Reyes Reviewed-by: Anthony Krowiak --- hw/vfio/ap.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index c7ab4ff57a..3614657218 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -18,6 +18,7 @@ #include "hw/vfio/vfio-common.h" #include "system/iommufd.h" #include "hw/s390x/ap-device.h" +#include "hw/s390x/css.h" #include "qemu/error-report.h" #include "qemu/event_notifier.h" #include "qemu/main-loop.h" @@ -37,6 +38,7 @@ struct VFIOAPDevice { APDevice apdev; VFIODevice vdev; EventNotifier req_notifier; + EventNotifier cfg_notifier; }; =20 OBJECT_DECLARE_SIMPLE_TYPE(VFIOAPDevice, VFIO_AP_DEVICE) @@ -70,6 +72,18 @@ static void vfio_ap_req_notifier_handler(void *opaque) } } =20 +static void vfio_ap_cfg_chg_notifier_handler(void *opaque) +{ + VFIOAPDevice *vapdev =3D opaque; + + if (!event_notifier_test_and_clear(&vapdev->cfg_notifier)) { + return; + } + + css_generate_css_crws(0); + +} + static bool vfio_ap_register_irq_notifier(VFIOAPDevice *vapdev, unsigned int irq, Error **errp) { @@ -85,6 +99,10 @@ static bool vfio_ap_register_irq_notifier(VFIOAPDevice *= vapdev, notifier =3D &vapdev->req_notifier; fd_read =3D vfio_ap_req_notifier_handler; break; + case VFIO_AP_CFG_CHG_IRQ_INDEX: + notifier =3D &vapdev->cfg_notifier; + fd_read =3D vfio_ap_cfg_chg_notifier_handler; + break; default: error_setg(errp, "vfio: Unsupported device irq(%d)", irq); return false; @@ -136,6 +154,9 @@ static void vfio_ap_unregister_irq_notifier(VFIOAPDevic= e *vapdev, case VFIO_AP_REQ_IRQ_INDEX: notifier =3D &vapdev->req_notifier; break; + case VFIO_AP_CFG_CHG_IRQ_INDEX: + notifier =3D &vapdev->cfg_notifier; + break; default: error_report("vfio: Unsupported device irq(%d)", irq); return; @@ -175,6 +196,15 @@ static void vfio_ap_realize(DeviceState *dev, Error **= errp) warn_report_err(err); } =20 + if (!vfio_ap_register_irq_notifier(vapdev, VFIO_AP_CFG_CHG_IRQ_INDEX, = &err)) + { + /* + * Report this error, but do not make it a failing condition. + * Lack of this IRQ in the host does not prevent normal operation. + */ + warn_report_err(err); + } + return; =20 error: @@ -187,6 +217,7 @@ static void vfio_ap_unrealize(DeviceState *dev) VFIOAPDevice *vapdev =3D VFIO_AP_DEVICE(dev); =20 vfio_ap_unregister_irq_notifier(vapdev, VFIO_AP_REQ_IRQ_INDEX); + vfio_ap_unregister_irq_notifier(vapdev, VFIO_AP_CFG_CHG_IRQ_INDEX); vfio_detach_device(&vapdev->vdev); g_free(vapdev->vdev.name); } --=20 2.48.1 From nobody Thu Dec 18 22:22:54 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Tue, 15 Apr 2025 14:05:10 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=5/BFVyl2dIV23uTjQ ps4yRlo0hXjrGLrECnKRja+Ets=; b=LpSeoyq0reyoEgRlNLdTgXwOoBdvxSFid dx3ySo+vCyDtojIirmNJfZJwqbht+5jywqIbXVtBumyXzxwXtp8hGpNLdVl7+scU la5AmMyLOm1bzeU2T1o9IatqbGFtjCnTTslbYYRZR3+OIXet2AORGsJixO4L5CP0 7mMx4Rv0Dps9EZbBLmTcrlD5a4aAwTVj/H7m1KMgUVUFkt1Mub2fFTBjh/BnqcQI ObAyD0jnibsZuJXpMEogLQbKLEunTr0M/fWnB5MR1SYNl3z+7axMS77fQEe2yht/ RIRDF5Z9Tg0zAj01PuNyvLkb7hR3nZM/dymmu6LNnIvrri00vyZXg== From: Rorie Reyes To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: pbonzini@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, jjherne@linux.ibm.com, borntraeger@linux.ibm.com, alex.williamson@redhat.com, clg@redhat.com, thuth@redhat.com, akrowiak@linux.ibm.com, rreyes@linux.ibm.com Subject: [RFC PATCH v5 3/5] hw/vfio/ap: store object indicating AP config changed in a queue Date: Tue, 15 Apr 2025 10:05:04 -0400 Message-ID: <20250415140506.1516-4-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250415140506.1516-1-rreyes@linux.ibm.com> References: <20250415140506.1516-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: cdjAzYfLsHibjYAul6weEEPNIK_5Ama1 X-Proofpoint-GUID: cdjAzYfLsHibjYAul6weEEPNIK_5Ama1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-15_06,2025-04-15_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 impostorscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504150099 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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=rreyes@linux.ibm.com; helo=mx0b-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1744726028158019100 Content-Type: text/plain; charset="utf-8" Creates an object indicating that an AP configuration change event has been received and stores it in a queue. These objects will later be used to store event information for an AP configuration change when the CHSC instruction is intercepted. Signed-off-by: Rorie Reyes --- hw/vfio/ap.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 3614657218..3fa986ca45 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -41,6 +41,13 @@ struct VFIOAPDevice { EventNotifier cfg_notifier; }; =20 +typedef struct APConfigChgEvent { + QTAILQ_ENTRY(APConfigChgEvent) next; +} APConfigChgEvent; + +QTAILQ_HEAD(, APConfigChgEvent) cfg_chg_events =3D + QTAILQ_HEAD_INITIALIZER(cfg_chg_events); + OBJECT_DECLARE_SIMPLE_TYPE(VFIOAPDevice, VFIO_AP_DEVICE) =20 static void vfio_ap_compute_needs_reset(VFIODevice *vdev) @@ -74,12 +81,17 @@ static void vfio_ap_req_notifier_handler(void *opaque) =20 static void vfio_ap_cfg_chg_notifier_handler(void *opaque) { + APConfigChgEvent *cfg_chg_event; VFIOAPDevice *vapdev =3D opaque; =20 if (!event_notifier_test_and_clear(&vapdev->cfg_notifier)) { return; } =20 + cfg_chg_event =3D g_new0(APConfigChgEvent, 1); + + QTAILQ_INSERT_TAIL(&cfg_chg_events, cfg_chg_event, next); + css_generate_css_crws(0); =20 } --=20 2.48.1 From nobody Thu Dec 18 22:22:54 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1744726063; cv=none; d=zohomail.com; s=zohoarc; b=MgU++S6hBwQNJcbKZE/HCKstfObx1jZPMkwLu/KFONMIe/B65s3I9nsO2ByTMhULoCFJg6CvKtgVgdvxauHLbikK6F0Sb+U8TP22QaYc/68qbiTSp0oNlDKLQAoFcYxvQTsYhPYMdwnRafTnTwXGCxM9ia8A2lOWTkDd0Io37KY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1744726063; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Arl31x0MijP9cRGMkDMApcImfI7o8BjEhAUPtlbgcuY=; b=Ddt5+6JMQiByKfY0U8z6piSR8JJYPa6O86wqUr/8aAtd2l4vDZ6Fif+M24+akHMnmS8MjQ9eJ0Pqfek10vWZ9xGCftEDPcF0V4jpslsCX1vvlcCcCVNC2YJrxDpspvYnIVq6MBJFmjhfJQoUku1o3RS3UbNCxoYyuu8TUpvQAOE= ARC-Authentication-Results: i=1; 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Tue, 15 Apr 2025 14:05:13 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7205A5805C; Tue, 15 Apr 2025 14:05:12 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.248.247]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 15 Apr 2025 14:05:12 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=Arl31x0MijP9cRGMk DMApcImfI7o8BjEhAUPtlbgcuY=; b=sIPcuVqJLMd7kld9OiTb74pYi+Hh1QJZ0 3gUU4Stq1dj7aOK9JpeOdpw9CSXGHs1u7W9EkXMPyc5uD192EMHBRwXwF1zD7SEW +3F6FnmvIXCMHAUeqOdwlWIJ//NywasVTOjvN27uhQK7sGloPSzqi4zNmvA339xQ +Nss15MEpEA/5Rp5hBKHkOxK3AZHGlJvkh4VnL6trmUS7UxPaCEQp8cP2Kq3TEfR ct+7iza3VT3KzdXF0n7cbwvzqmK1Fy1mlnRHlHu6nPdgOOOTNGAF1oeEHi3AprsX D8Z1pk1sGiTUWu8N+lgZtpIci9BO744FBLCT9/4762y/O90jzoHEw== From: Rorie Reyes To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: pbonzini@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, jjherne@linux.ibm.com, borntraeger@linux.ibm.com, alex.williamson@redhat.com, clg@redhat.com, thuth@redhat.com, akrowiak@linux.ibm.com, rreyes@linux.ibm.com Subject: [RFC PATCH v5 4/5] hw/vfio/ap: Storing event information for an AP configuration change event Date: Tue, 15 Apr 2025 10:05:05 -0400 Message-ID: <20250415140506.1516-5-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250415140506.1516-1-rreyes@linux.ibm.com> References: <20250415140506.1516-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 3wgrBmgUooNITm8jv8qgcE9fekNfsxVB X-Proofpoint-GUID: 3wgrBmgUooNITm8jv8qgcE9fekNfsxVB X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-15_06,2025-04-15_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 impostorscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504150099 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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=rreyes@linux.ibm.com; helo=mx0b-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1744726065697019100 Content-Type: text/plain; charset="utf-8" These functions can be invoked by the function that handles interception of the CHSC SEI instruction for requests indicating the accessibility of one or more adjunct processors has changed. Signed-off-by: Rorie Reyes --- hw/vfio/ap.c | 39 ++++++++++++++++++++++++++++++++++++ include/hw/s390x/ap-bridge.h | 22 ++++++++++++++++++++ 2 files changed, 61 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 3fa986ca45..4da246c538 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -96,6 +96,45 @@ static void vfio_ap_cfg_chg_notifier_handler(void *opaqu= e) =20 } =20 +int ap_chsc_sei_nt0_get_event(void *res) +{ + ChscSeiNt0Res *nt0_res =3D (ChscSeiNt0Res *)res; + APConfigChgEvent *cfg_chg_event; + + if (!ap_chsc_sei_nt0_have_event()) { + return 1; + } + + cfg_chg_event =3D QTAILQ_FIRST(&cfg_chg_events); + memset(nt0_res, 0, sizeof(*nt0_res)); + + QTAILQ_REMOVE(&cfg_chg_events, cfg_chg_event, next); + g_free(cfg_chg_event); + + /* + * If there are any AP configuration change events in the queue, + * indicate to the caller that there is pending event info in + * the response block + */ + if (ap_chsc_sei_nt0_have_event()) { + nt0_res->flags |=3D PENDING_EVENT_INFO_BITMASK; + } + + nt0_res->length =3D sizeof(ChscSeiNt0Res); + nt0_res->code =3D NT0_RES_RESPONSE_CODE; + nt0_res->nt =3D NT0_RES_NT_DEFAULT; + nt0_res->rs =3D NT0_RES_RS_AP_CHANGE; + nt0_res->cc =3D NT0_RES_CC_AP_CHANGE; + + return 0; + +} + +int ap_chsc_sei_nt0_have_event(void) +{ + return !QTAILQ_EMPTY(&cfg_chg_events); +} + static bool vfio_ap_register_irq_notifier(VFIOAPDevice *vapdev, unsigned int irq, Error **errp) { diff --git a/include/hw/s390x/ap-bridge.h b/include/hw/s390x/ap-bridge.h index 470e439a98..f4d838bf99 100644 --- a/include/hw/s390x/ap-bridge.h +++ b/include/hw/s390x/ap-bridge.h @@ -16,4 +16,26 @@ =20 void s390_init_ap(void); =20 +typedef struct ChscSeiNt0Res { + uint16_t length; + uint16_t code; + uint8_t reserved1; + uint16_t reserved2; + uint8_t nt; +#define PENDING_EVENT_INFO_BITMASK 0x80; + uint8_t flags; + uint8_t reserved3; + uint8_t rs; + uint8_t cc; +} QEMU_PACKED ChscSeiNt0Res; + +#define NT0_RES_RESPONSE_CODE 1; +#define NT0_RES_NT_DEFAULT 0; +#define NT0_RES_RS_AP_CHANGE 5; +#define NT0_RES_CC_AP_CHANGE 3; + +int ap_chsc_sei_nt0_get_event(void *res); + +int ap_chsc_sei_nt0_have_event(void); + #endif --=20 2.48.1 From nobody Thu Dec 18 22:22:54 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1744725985; cv=none; d=zohomail.com; s=zohoarc; b=T4AsBZ27BjOOcqpbM/vGUakZpHrsobP6JHIPYmmEuLO8tvc/OZrg/PjGW0uhWJMv4HBhtf0S53R7NUoeidmxH/aH/LM3u9FeECjTBT/bVl3IZFgj4lHbVCVD2L/Hyl+zOzT3I07J1kwXKW5dNUXUzLJh779uzTq3fnWUsy1wI7o= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1744725985; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=lyezz9Z86GAa8AmH92TZemxPDIJtkhisotNBVauzmcE=; 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Tue, 15 Apr 2025 14:05:15 GMT Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 159175805B; Tue, 15 Apr 2025 14:05:15 +0000 (GMT) Received: from smtpav02.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D1CF75805D; Tue, 15 Apr 2025 14:05:13 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.248.247]) by smtpav02.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 15 Apr 2025 14:05:13 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=lyezz9Z86GAa8AmH9 2TZemxPDIJtkhisotNBVauzmcE=; b=jK2agKqJZBiwDj50zw5YDM5RlH8vQEvOr mBtBo8x83Xx/fakkjpGwdW7RF0RvvJjWLt4RQvvWTxRKqdT8yBG/Y2GwUr+gaVm2 jq6eNsaaTnZmcff6hcf3RU2n3fvzeSSU/kZottjg9OUx/QTD8X5bfUsADp+vhphX IR0dDPtIYCDsGDtQ4npmb0smCECUsWOAUDnQsV2WZ0DOrxfEyuYq+sd/eZzvkLyD +RUg2J/yXth36KEL4eC7HSj8JRBv1ekjbwF3l6KKCaNZNHiX9l32f8z6Ooq0ydGd ewi4Yh6A9Yy2E3Dsuo/fidjnLyM/KveJGc98Xv5Cr6umrFBze2noQ== From: Rorie Reyes To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Cc: pbonzini@redhat.com, cohuck@redhat.com, pasic@linux.ibm.com, jjherne@linux.ibm.com, borntraeger@linux.ibm.com, alex.williamson@redhat.com, clg@redhat.com, thuth@redhat.com, akrowiak@linux.ibm.com, rreyes@linux.ibm.com Subject: [RFC PATCH v5 5/5] s390: implementing CHSC SEI for AP config change Date: Tue, 15 Apr 2025 10:05:06 -0400 Message-ID: <20250415140506.1516-6-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250415140506.1516-1-rreyes@linux.ibm.com> References: <20250415140506.1516-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: PWYhoVstxqIfVjI2gvZEFsxW68v0SERp X-Proofpoint-GUID: PWYhoVstxqIfVjI2gvZEFsxW68v0SERp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-15_06,2025-04-15_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 mlxscore=0 spamscore=0 malwarescore=0 mlxlogscore=999 impostorscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504150099 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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=rreyes@linux.ibm.com; helo=mx0b-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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1744725986588019000 Content-Type: text/plain; charset="utf-8" Handle interception of the CHSC SEI instruction for requests indicating the guest's AP configuration has changed. If configuring -without-defaul-devices, hw/vfio/ap-sub.c was created to handle such circumstance. Also added if CONFIG_VFIO_AP is false, it will use the stub file. Signed-off-by: Rorie Reyes Reviewed-by: Anthony Krowiak Tested-by: Anthony Krowiak --- MAINTAINERS | 1 + hw/vfio/ap-stub.c | 23 +++++++++++++++++++++++ hw/vfio/meson.build | 1 + target/s390x/ioinst.c | 11 +++++++++-- 4 files changed, 34 insertions(+), 2 deletions(-) create mode 100644 hw/vfio/ap-stub.c diff --git a/MAINTAINERS b/MAINTAINERS index d54b5578f8..45229837d1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -112,6 +112,7 @@ F: hw/intc/s390_flic.c F: hw/intc/s390_flic_kvm.c F: hw/s390x/ F: hw/vfio/ap.c +F: hw/vfio/ap-stub.c F: hw/vfio/ccw.c F: hw/watchdog/wdt_diag288.c F: include/hw/s390x/ diff --git a/hw/vfio/ap-stub.c b/hw/vfio/ap-stub.c new file mode 100644 index 0000000000..9d2c4c2e67 --- /dev/null +++ b/hw/vfio/ap-stub.c @@ -0,0 +1,23 @@ +/* + * VFIO based AP matrix device assignment + * + * Copyright 2025 IBM Corp. + * Author(s): Rorie Reyes + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + +#include "qemu/osdep.h" +#include "hw/s390x/ap-bridge.h" + +int ap_chsc_sei_nt0_get_event(void *res) +{ + return 0; +} + +int ap_chsc_sei_nt0_have_event(void) +{ + return 0; +} diff --git a/hw/vfio/meson.build b/hw/vfio/meson.build index a8939c8386..28f4c959b8 100644 --- a/hw/vfio/meson.build +++ b/hw/vfio/meson.build @@ -11,6 +11,7 @@ vfio_ss.add(when: 'CONFIG_VFIO_PCI', if_true: files( vfio_ss.add(when: 'CONFIG_VFIO_CCW', if_true: files('ccw.c')) vfio_ss.add(when: 'CONFIG_VFIO_PLATFORM', if_true: files('platform.c')) vfio_ss.add(when: 'CONFIG_VFIO_AP', if_true: files('ap.c')) +vfio_ss.add(when: 'CONFIG_VFIO_AP', if_false: files('ap-stub.c')) vfio_ss.add(when: 'CONFIG_VFIO_IGD', if_true: files('igd.c')) =20 specific_ss.add_all(when: 'CONFIG_VFIO', if_true: vfio_ss) diff --git a/target/s390x/ioinst.c b/target/s390x/ioinst.c index a944f16c25..f061c6db14 100644 --- a/target/s390x/ioinst.c +++ b/target/s390x/ioinst.c @@ -17,6 +17,7 @@ #include "trace.h" #include "hw/s390x/s390-pci-bus.h" #include "target/s390x/kvm/pv.h" +#include "hw/s390x/ap-bridge.h" =20 /* All I/O instructions but chsc use the s format */ static uint64_t get_address_from_regs(CPUS390XState *env, uint32_t ipb, @@ -573,13 +574,19 @@ out: =20 static int chsc_sei_nt0_get_event(void *res) { - /* no events yet */ + if (s390_has_feat(S390_FEAT_AP)) { + return ap_chsc_sei_nt0_get_event(res); + } + return 1; } =20 static int chsc_sei_nt0_have_event(void) { - /* no events yet */ + if (s390_has_feat(S390_FEAT_AP)) { + return ap_chsc_sei_nt0_have_event(); + } + return 0; } =20 --=20 2.48.1