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Tue, 4 Feb 2025 17:08:02 +0000 (GMT) Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8E0F658053; Tue, 4 Feb 2025 17:08:01 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.255.239]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 4 Feb 2025 17:08:01 +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=GpzwVFe2I6Yk5SZ8t ySdyYobiM3eUVaKLJ1IhAVx7pI=; b=NMDbeIBJ2OqMk+ddd+4JvP5O8n3ShBhcS dOe7oAe+tnM3IvjZmgtb8Ph8UwlUR7L8D/ndIzBexNUt5mfOZb9yj1Kj21gyqPZ4 hJR6xBwwlJ5lPc1MsvCN40v9XkR0DCv3ulCv+m7TePvxmYY4vEWYommr7mKneGRG O+McAwJFUePC7wWymHja95BUwOFtShHrjDtNEtOyY4PBaTrLH9Yyg9dwL71Lv/5c HhpujgGCwoJr6mHRSyigLrXDJb45x9dsQiG7/hy8tIThWl1BmjkX+QI4Ainx/Y/R /QgopJELDmVs/RJtjq2Qk6+iguKg9Wg9j6ny+Vs2zMgYdIt61WVwg== 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 Subject: [RFC PATCH v2 1/5] linux-headers: NOTFORMERGE - placeholder uapi updates for AP config change Date: Tue, 4 Feb 2025 12:07:55 -0500 Message-Id: <20250204170759.36540-2-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250204170759.36540-1-rreyes@linux.ibm.com> References: <20250204170759.36540-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: SFFbI6HugPm84FdCdyTmYOxxPapemkci X-Proofpoint-GUID: SFFbI6HugPm84FdCdyTmYOxxPapemkci X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-04_08,2025-02-04_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 mlxscore=0 malwarescore=0 spamscore=0 priorityscore=1501 phishscore=0 mlxlogscore=958 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502040131 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_H2=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: 1738688981208019100 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 2.39.5 (Apple Git-154) From nobody Fri Mar 14 08:11:56 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=1738688923; cv=none; d=zohomail.com; s=zohoarc; b=N86X+rnGZRMrojzUYOnaUfoRvLQrIbcpvcdR7Y1hGNa+oVcEg3oLm/FhbXVzi5GphCjSwecihI2AHkgGaLl80DCMiVVThRXU+OHeibn9uslftVV+dmr4pHEg+MVDyRN9RN5DI5pQzw5P84UqfrvaVZEDShMBHMnTwH33ghVp4wg= 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=rP6S36xEkDaWXxbu7 iGmB1qsEt469UxZGLkzp50ETKg=; b=pv4pd1/UkirVk2T0L0vmIcTfqsz7oe25k iaJrpU27XW8zhYtJeE7N2lyPBr8I6VLzGBe/27Cmw3YhCbx1Qud2snOZdKQtbl52 3VZiyx3k3nh4O7Ucc6Ay2iNn+wOu2JdzcU1LShC46yLpgHwc6p4AmaMJN+zUuK/v a61J5ephSPJsRw+yMHb+UwQrkdkCgypO8IIcEAbmeCiKdLVMLdMIaFjc/Dwnj+Su wwuy+8q2A42ox359W5RohMj6p4uctKeVLZNq50SzYqcfK8/HVS9T3h31JTPJz2qX v9iwFDau2tkrCv1SksoTJJqLYN/+i1gyAblLSZO6vkaE32mHDX45g== 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 Subject: [RFC PATCH v2 2/5] hw/vfio/ap: notification handler for AP config changed event Date: Tue, 4 Feb 2025 12:07:56 -0500 Message-Id: <20250204170759.36540-3-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250204170759.36540-1-rreyes@linux.ibm.com> References: <20250204170759.36540-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: GGkuPm2GyS8w7w4aUlXbgiGbnTK9-wD- X-Proofpoint-ORIG-GUID: GGkuPm2GyS8w7w4aUlXbgiGbnTK9-wD- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-04_08,2025-02-04_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 clxscore=1015 mlxlogscore=999 phishscore=0 malwarescore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502040131 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_H2=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: 1738688926899019100 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 --- hw/vfio/ap.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 30b08ad375..a2b3735349 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 +72,16 @@ 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)) { + css_generate_css_crws(0); + } + +} + static bool vfio_ap_register_irq_notifier(VFIOAPDevice *vapdev, unsigned int irq, Error **errp) { @@ -85,6 +97,10 @@ 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 +152,9 @@ 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 +194,15 @@ 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 +215,7 @@ 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 2.39.5 (Apple Git-154) From nobody Fri Mar 14 08:11:56 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Tue, 4 Feb 2025 17:08:05 +0000 (GMT) Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1BA8458043; Tue, 4 Feb 2025 17:08:04 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.255.239]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 4 Feb 2025 17:08:03 +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=bNzYzpaGa4HVQjxIG O0SCMx+GykusmFjflUjmi8fQec=; b=c8zHt5SVGy6Y2xYk2q7b1LXIO7X2/054Q V61ldJmCLLbSgO+qaOpqiVROpb6tUliyZMOX60vCJgvwB/g+745u60AGHz/d4DP+ rit96bokUwga8AbiS+wBtUg9QGhaMB8kh2qpgf4UNNPf0qf7a7akxk1p7hdW3ukb SQ0IphBv/7H0DBmGvKtW8cnO6R2a7RLxXy6A95AO0EJ+V/Qn75cXnHLXLKR1IdQT I5YPFPIZrsv3xDR8Tq3fb6V1hAyMN00CO7yj3YHKyjTaraLHy0ommtgdfVwGfMUS YIthdevS/d2Zjou8/jTustcF5aA5cOZz+TnPIUoYuojRSbRHML8Iw== 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 Subject: [RFC PATCH v2 3/5] hw/vfio/ap: store object indicating AP config changed in a queue Date: Tue, 4 Feb 2025 12:07:57 -0500 Message-Id: <20250204170759.36540-4-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250204170759.36540-1-rreyes@linux.ibm.com> References: <20250204170759.36540-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: UTtmRB5gPAJ9b4uTj0LH5jotkorSxkJD X-Proofpoint-GUID: UTtmRB5gPAJ9b4uTj0LH5jotkorSxkJD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-04_08,2025-02-04_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 clxscore=1015 adultscore=0 spamscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502040131 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_H2=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: 1738688926872019100 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 | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index a2b3735349..396fcf87de 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) @@ -75,11 +82,16 @@ static void vfio_ap_req_notifier_handler(void *opaque) static void vfio_ap_cfg_chg_notifier_handler(void *opaque) { VFIOAPDevice *vapdev =3D opaque; + APConfigChgEvent *cfg_chg_event =3D g_new0(APConfigChgEvent, 1); =20 if (!event_notifier_test_and_clear(&vapdev->cfg_notifier)) { - css_generate_css_crws(0); + return; } =20 + QTAILQ_INSERT_TAIL(&cfg_chg_events, cfg_chg_event, next); + + css_generate_css_crws(0); + } =20 static bool vfio_ap_register_irq_notifier(VFIOAPDevice *vapdev, --=20 2.39.5 (Apple Git-154) From nobody Fri Mar 14 08:11:56 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=1738688992; cv=none; d=zohomail.com; s=zohoarc; b=Vrsa04BYmSaX9UE+06OAXlmSrRp74QZFQ2QyR5FmmanWZRZYrXw65eRB5eUPjgHSpUiH7BSb47GcjsD0T7tkfiIZg45MFrg6dw1AeZVAgb/XOzeEuBQE631UFOkvRzJd2FLoeQdskzGPoTDfZajyDYxYHswneSfkkrd4IdoeXPM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1738688992; 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; 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Tue, 04 Feb 2025 17:08:07 +0000 Received: from smtpav05.wdc07v.mail.ibm.com (smtpav05.wdc07v.mail.ibm.com [10.39.53.232]) by smtprelay07.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 514H86i814090888 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 4 Feb 2025 17:08:06 GMT Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 70A5158053; Tue, 4 Feb 2025 17:08:06 +0000 (GMT) Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5EF9358043; Tue, 4 Feb 2025 17:08:05 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.255.239]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 4 Feb 2025 17:08:05 +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=+5G/FltpwJ2BlrebO 7IMI9chV6ZbWSu1tllcaz/IvK0=; b=EvWTZtJ/hwf93n1ZZaVtah46QvMd3S4f/ Mi1E/p+u/8i8sGuILYlFrQRuflShgz+9IcY4ztwdiTEwy4qf6c42Ht2cBLpuHqbq o0Jx6sXczC+IqcN+J0MeRVR9Mcfms6Ex1LEUFczNknZBSiID/c/xuiTaXeNK4zkr LbkUXANTOJCr1YC16+8et5PXeDKzlxqyy+xmleJ7TxpiiTfTfbBxOyZPMDgdi0sc Dw/tyaeZzRRPTh3TWJSFcC0Zm21GmRGkGn3WGmjbY8Kofn2wshOi2uguIivUe6Tr Ow9/qEeZHq1srxKeE5e+EzIqcgRsAgHKfV3GC8DH3ylMMCow5JICg== 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 Subject: [RFC PATCH v2 4/5] hw/vfio/ap: Storing event information for an AP configuration change event Date: Tue, 4 Feb 2025 12:07:58 -0500 Message-Id: <20250204170759.36540-5-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250204170759.36540-1-rreyes@linux.ibm.com> References: <20250204170759.36540-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: SjHrzZXisTKxd7jUCVR619KoNK4y734V X-Proofpoint-ORIG-GUID: SjHrzZXisTKxd7jUCVR619KoNK4y734V X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-04_08,2025-02-04_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 clxscore=1015 mlxlogscore=999 phishscore=0 malwarescore=0 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502040131 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_H2=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: 1738688994628019100 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 | 38 ++++++++++++++++++++++++++++++++++++ include/hw/s390x/ap-bridge.h | 22 +++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 396fcf87de..1ec5d1a64c 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -94,6 +94,44 @@ static void vfio_ap_cfg_chg_notifier_handler(void *opaqu= e) =20 } =20 +int ap_chsc_sei_nt0_get_event(void *res) +{ + APConfigChgEvent *cfg_chg_event =3D QTAILQ_FIRST(&cfg_chg_events); + ChscSeiNt0Res *nt0_res =3D (ChscSeiNt0Res *)res; + + memset(nt0_res, 0, sizeof(*nt0_res)); + + if (!cfg_chg_event) { + return 1; + } + + 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 2.39.5 (Apple Git-154) From nobody Fri Mar 14 08:11:56 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=1738688959; cv=none; d=zohomail.com; s=zohoarc; b=eI5I4o8XE9cKwas55psT9v37hJFWiPPBSjfTQDmHYcpY+tCVfZGW9p7ijAuHyeS6qkxmtIeMq2wrPqGwpvz/H1oOAubpnNxBS8Xp6hCf6tQENn9OOnpi2tNJuwC8eo3N0tAOmOm+KljPRNLDpk2em0KhoqfNh5gVNCxwKgx7HWI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1738688959; 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=bDtmD3uahoU0Rlnbm02OUIfLNADVPIOIcSjT34aX7BM=; 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Tue, 4 Feb 2025 17:08:08 GMT Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C5FD858053; Tue, 4 Feb 2025 17:08:07 +0000 (GMT) Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9703D58043; Tue, 4 Feb 2025 17:08:06 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.255.239]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Tue, 4 Feb 2025 17:08:06 +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=bDtmD3uahoU0Rlnbm 02OUIfLNADVPIOIcSjT34aX7BM=; b=nFUqmiPqO+7EdP0ZKTQnthW2mOGBAo4Sa Xpa0pY8p/V3jljDn0puh6gEaSTepM8HHHo+xPEOy1ULbbZWWknA4boRREMS1rhT5 THTjcZRAeea9oTalGtIJD8rzly1pdN/MTHcb/Va9t2aQDegPeR2+2Yg1aPn7eGqZ WCTfp79gd5PJo2CMCE9dzY501ABa14/0HBlXvhwWshyUSI51iny3yrIZHYf8KfC8 2yBsV+9MMTIgMCyTQKjVXS80GLgdqRryDrCBoj1JUR7TKSElxqvoHlrWCx10nO0x oXvYOijUGIMovNck1LgnRHxJ1P1LjeZuMQfN+fO03mgLz3gDX3sFA== 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 Subject: [RFC PATCH v2 5/5] s390: implementing CHSC SEI for AP config change Date: Tue, 4 Feb 2025 12:07:59 -0500 Message-Id: <20250204170759.36540-6-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20250204170759.36540-1-rreyes@linux.ibm.com> References: <20250204170759.36540-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: zwnfh5ws8WPTYF0yvywaONTAXTVnyr16 X-Proofpoint-GUID: zwnfh5ws8WPTYF0yvywaONTAXTVnyr16 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-04_08,2025-02-04_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 adultscore=0 lowpriorityscore=0 clxscore=1015 mlxscore=0 malwarescore=0 spamscore=0 priorityscore=1501 phishscore=0 mlxlogscore=925 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502040131 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_H2=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: 1738688962273019100 Content-Type: text/plain; charset="utf-8" Handle interception of the CHSC SEI instruction for requests indicating the guest's AP configuration has changed. Signed-off-by: Rorie Reyes Reviewed-by: Anthony Krowiak Tested-by: Anthony Krowiak --- target/s390x/ioinst.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) 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 2.39.5 (Apple Git-154)