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Mon, 12 May 2025 18:02:32 +0000 (GMT) Received: from smtpav01.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F2DF658057; Mon, 12 May 2025 18:02:31 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.251.19]) by smtpav01.dal12v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 May 2025 18:02:31 +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=+fA/SIG8gl+4YBAHj oDQs685t45LmFkrAh9CfY+0pw4=; b=Tt1qqDJYv+AdRkf6U3RKeouAzs2X8Sm8h TOUPn1vVfdM7HPVnhklqwJSpRLhRthpTqV5UsyarWhMncYL1CqmChJ+ZPRP70a4D ABdNSV3PPXg9HDak1VonJf5wRfyaFpKHBZpMW82dQ3wNY1ZvAhh9XIhcTaJm/Jy7 iSqv7W41rUGhFzIzy6EAhncdmGamk9eM6kG18iOeX4aoWvCsiCIolciA6q6s8DAu cLiTtE7+ckdYC3WgB7l6kw/m0SqH3AlftShqo6Rrd06doXaHWbWxCOzLZpTaa9CN izwBJZjWG/bUmkwPb+u5roeToQx/MvlS6QOULFwZ8yFFuoxfU4mDQ== 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 v9 1/4] hw/vfio/ap: notification handler for AP config changed event Date: Mon, 12 May 2025 14:02:27 -0400 Message-ID: <20250512180230.50129-2-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250512180230.50129-1-rreyes@linux.ibm.com> References: <20250512180230.50129-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=OOUn3TaB c=1 sm=1 tr=0 ts=682237ba cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=dt9VzEwgFbYA:10 a=sWKEhP36mHoA:10 a=VnNF1IyMAAAA:8 a=cI7fhctStQOMI3-b00QA:9 X-Proofpoint-ORIG-GUID: D1NNHiu9CUSmaZFAiL1v3NFrcSA2h93S X-Proofpoint-GUID: D1NNHiu9CUSmaZFAiL1v3NFrcSA2h93S X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTEyMDE4MSBTYWx0ZWRfXzAxEmIPi3vUe rV+4WeZxSAJirJ/v3qLTxZeVSDN3B6MQFbgQ164u2rebFP5JHzYaxybOQlAWdf7CrJ+kxmCJ0PN rYEcvedwNSNs1xtEehDgG31JJtrp+B8kfU83jDSLMVh9ThjCGJb8clXt09u+ud62BKvC0ymurI8 1gG5SUyBUomkCVfXAJtoFvP15nyOlhP/zqCttr8f+YrxKa8OEXL//BoFYvM8jUm+6g9AQPaX1f+ G/qkwnWcgrRRcVpMRNC5oNcJp+gzyFRFeyYnBYvGQD8nmr9SzhESl751HlqpJ8rwAej7wu+AHxG 9X55RQ5xfwnXCWRx+5A79XUVqXYbm324roTqN66sjW915gB8p14Xb9nqq5oO3TR8ZDztT/2gNpI aTqZwLLIcvmXfcKjwEptrFD/YSxOCSib1okrVn46mxv/6S5EmOQY6/RVBlIyb+EftyK+Xw9B X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-12_06,2025-05-09_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1015 bulkscore=0 malwarescore=0 adultscore=0 mlxscore=0 mlxlogscore=999 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505120181 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=148.163.156.1; envelope-from=rreyes@linux.ibm.com; helo=mx0a-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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: 1747073057519019000 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 1207c08d8d..3d0af7a54a 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -18,6 +18,7 @@ #include "hw/vfio/vfio-device.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_device_detach(&vapdev->vdev); g_free(vapdev->vdev.name); } --=20 2.48.1 From nobody Fri Dec 19 02:51:02 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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Mon, 12 May 2025 18:02:32 +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=Aj6kFQ0EZN1GrkhPI HMJguSCyL4T1m3bwc+M2lQyeCU=; b=hjqAjNMsoMDurDkgxR7F0iI8GOx6gO7EC KODO3pTLMO+aOHOhu8lAqAQDuukM3HpluFQni7c+ACQ3no+8KhylifurBsdi7Gf3 Np2GlQd1Yb3RjwUIcvcmhPmFgkb7DJDTEfyo1vx7MCVyOdTD8f1Ny9siKX+VAfP0 tKSw6F87Be4X2Q0ffRHdrlKGtVqBWbn/b6v1ZA5b/3cwTjUvgRblJWcPbAy3x1SE XR3sDPoKfVvutpzhYdiJd+PFsJ4oV5+LZqONn+R2aHKLf7Sx9RAeYmuGTr+4t4ze 9a8LrJQgNMwMMuFz3fU1cD+DbT+I40LyDMPSALgi0J9tsiDgheiiA== 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 v9 2/4] hw/vfio/ap: store object indicating AP config changed in a queue Date: Mon, 12 May 2025 14:02:28 -0400 Message-ID: <20250512180230.50129-3-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250512180230.50129-1-rreyes@linux.ibm.com> References: <20250512180230.50129-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=DrhW+H/+ c=1 sm=1 tr=0 ts=682237bc cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=dt9VzEwgFbYA:10 a=VnNF1IyMAAAA:8 a=n_lu--N5RhutrOJcQFMA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTEyMDE4MSBTYWx0ZWRfX8eErOfpYq9Q0 tKZVDqMVboFnS0mWkhD9ZDe7eKK3U3J2hKtxLKO824FTzLMSxsnt8igUWEpCZRJ9s3wnKZHmzLl 4LHQrFB+NbxaNozk9A/jEJEBhAUcURs75AeB2LXA6FbPVj8K3HuLLF4lFx2QmBKjxo0iIeCuWT3 PBcAYE95cy8PXGHUGilfwiSIVxJ/ZxN8t3pBQM0FDm7oRGbytBJ6Ox+dtN/HnQ6D5TeqRe8Oxup RnTbgJgrF26e+9osgQa3fnZOhBrQBB7wPqy2XWvOJwwXlG0LjAExbSfmsKG1wTSEpP1uxks3uX6 AzmfPTRzoe0DWoCO2rgrSfC2DGTPrL6QWSs5m/3y0VKpIQSCEiTDSV4Gho7ne1KAwDmvaasrOoP 7tlavD4nJl/P7gmhgC5ymQmdSgEs1EKx1rxJH7CKNAUFFbU24Kr5ZL78kOxxvE5YrvOj/ucj X-Proofpoint-GUID: fyy2F8UXlrV5FXpv_55AUWnZF9rAdo_p X-Proofpoint-ORIG-GUID: fyy2F8UXlrV5FXpv_55AUWnZF9rAdo_p X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-12_06,2025-05-09_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 phishscore=0 bulkscore=0 mlxscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505120181 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=148.163.156.1; envelope-from=rreyes@linux.ibm.com; helo=mx0a-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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: 1747073057220116600 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 Reviewed-by: Anthony Krowiak --- hw/vfio/ap.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 3d0af7a54a..5ea5dd9cca 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 Fri Dec 19 02:51:02 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=1747073015; cv=none; d=zohomail.com; s=zohoarc; b=bi47fkAW1iDyhU8pEX49oUHuJY82HLLPZKLFPphRuJU35QgOr15MEHqXQCTMANZ71NiQ+W0NJikPwbtqWcO7iaff9+k2xmOsT4PnRGxmBg/+ILvIBjdPd5uV3SpHO5v+PUO5tnuvyKRxae9CT4Bw5xi11XRrwlS8BWU6frbJpqQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1747073015; 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=z+c0x+nvW4bJcM4OYexbji+5LoZMUs+4i9c/Z7KPEFo=; 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Mon, 12 May 2025 18:02:34 GMT Received: from smtpav01.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7C06C58061; Mon, 12 May 2025 18:02:34 +0000 (GMT) Received: from smtpav01.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BB23758063; Mon, 12 May 2025 18:02:33 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.251.19]) by smtpav01.dal12v.mail.ibm.com (Postfix) with ESMTP; Mon, 12 May 2025 18:02:33 +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=z+c0x+nvW4bJcM4OY exbji+5LoZMUs+4i9c/Z7KPEFo=; b=b11RSZ8hEUXugYqoM5wbG9QeBBhIzBi9w 4lO9YdnGYHnZEF2WY+HKkQCVYAc+aQTezGllJCOaCRcmTKlX5TqIy/1XrjNPNjLH VWOBE8Y4eIkB2oEpss7CeVd679zabAV+Hj1dWwpTlwswrWjYFU+bGxc7eeTj/frM HwhzS3s9lPRVCvB9BIM2zNCm62Tu0MN6Cg+8tRCLP1ooSEJvgsoG4r4IvRwCVu3a K7oEQxagliAVsyzfUwGtZTv+A261ZK8YfyK+sAAUHSvH0in3m+7aVHda6/QNSkYc h2HQqoauhLSr+2XCq+IsRHB1J6+HU6fik1QqRTWVObbvfQEV7GsJg== 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 v9 3/4] hw/vfio/ap: Storing event information for an AP configuration change event Date: Mon, 12 May 2025 14:02:29 -0400 Message-ID: <20250512180230.50129-4-rreyes@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250512180230.50129-1-rreyes@linux.ibm.com> References: <20250512180230.50129-1-rreyes@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=OOUn3TaB c=1 sm=1 tr=0 ts=682237bd cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=dt9VzEwgFbYA:10 a=sWKEhP36mHoA:10 a=VnNF1IyMAAAA:8 a=1fYsFTRr82c5d5Av3T0A:9 X-Proofpoint-ORIG-GUID: 1FtW1VmTtcrFEJX6Q0EB8tsBnNHAhbzi X-Proofpoint-GUID: 1FtW1VmTtcrFEJX6Q0EB8tsBnNHAhbzi X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTEyMDE4MSBTYWx0ZWRfXyFqAIC2kUyju 75vtZZeh3tZSt65cHIXtUptmMtec+cNgaXPPyKFeqYJL9QySmrxu8wtW6iwyedXaIK8Lr/919cz m7Q6lrYrDJxUEiDaeT/IrTFDAqFLMjqL5cfHpVPCrY9jU58mnaCGjJJO/n8rP25j2FX5hQsgev+ qZoxHJBziKnj3xiLpIS+xMBEmTJYoasnFx4aDxTYIeiQOys0QDGTqqfb8VexMMHqijf+C0Vx6TT P7Qu0sV4t0SmtQtI7RtohW/dIOF5s2pJg07E7KvpfrjYArI5DyTzUlKQKgPXKh8cb+Mz+gy649f 76Goe1SUqF9bpCSIZlcRhctCan1nP2Eh3yqFIbBWSo2FhD0KwCG1pJv3hRsrwaIm3VyaMQ7v+/H QK5VUK5gpJ3OlpIG957qzqhE8bvLUFq0DXirSfZPw4sOSk0Y3xC38Wd0Ga857T+aDdmt4dCa X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-12_06,2025-05-09_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1015 bulkscore=0 malwarescore=0 adultscore=0 mlxscore=0 mlxlogscore=999 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505120181 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=148.163.156.1; envelope-from=rreyes@linux.ibm.com; helo=mx0a-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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: 1747073017266116600 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 Reviewed-by: Anthony Krowiak --- 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 5ea5dd9cca..4f88f80c54 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 Fri Dec 19 02:51:02 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=1747073025; cv=none; d=zohomail.com; s=zohoarc; b=TqcgMOGCkHeJf3fElsZfkdzAi55GPEJaOopLvHUvHXMzHK8t2moGa2T3vHCUTbNEAHSI867t0KIVV7vHNchq+llrLEy297m5gD4u95tiuG2mqjE0w7dshqtppHbELextpHa5C41wDA044wx12/4wabbQHzvcM+rvSf/AUbdzrIY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1747073025; 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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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.156.1; envelope-from=rreyes@linux.ibm.com; helo=mx0a-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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: 1747073027899019000 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-default-devices, hw/s390x/ap-stub.c was created to handle such circumstance. Also added the following to hw/s390x/meson.build if CONFIG_VFIO_AP is false, it will use the stub file. Signed-off-by: Rorie Reyes Reviewed-by: Anthony Krowiak Reviewed-by: C=C3=A9dric Le Goater --- MAINTAINERS | 1 + hw/s390x/ap-stub.c | 25 +++++++++++++++++++++++++ hw/s390x/meson.build | 1 + target/s390x/ioinst.c | 11 +++++++++-- 4 files changed, 36 insertions(+), 2 deletions(-) create mode 100644 hw/s390x/ap-stub.c diff --git a/MAINTAINERS b/MAINTAINERS index 23174b4ca7..070c746c69 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/s390x/ap-stub.c F: hw/vfio/ccw.c F: hw/watchdog/wdt_diag288.c F: include/hw/s390x/ diff --git a/hw/s390x/ap-stub.c b/hw/s390x/ap-stub.c new file mode 100644 index 0000000000..e2dacff959 --- /dev/null +++ b/hw/s390x/ap-stub.c @@ -0,0 +1,25 @@ +/* + * VFIO based AP matrix device assignment + * + * Copyright 2025 IBM Corp. + * Author(s): Rorie Reyes + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * 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/s390x/meson.build b/hw/s390x/meson.build index 3bbebfd817..99cbcbd7d6 100644 --- a/hw/s390x/meson.build +++ b/hw/s390x/meson.build @@ -33,6 +33,7 @@ s390x_ss.add(when: 'CONFIG_S390_CCW_VIRTIO', if_true: fil= es( )) s390x_ss.add(when: 'CONFIG_TERMINAL3270', if_true: files('3270-ccw.c')) s390x_ss.add(when: 'CONFIG_VFIO', if_true: files('s390-pci-vfio.c')) +s390x_ss.add(when: 'CONFIG_VFIO_AP', if_false: files('ap-stub.c')) =20 virtio_ss =3D ss.source_set() virtio_ss.add(files('virtio-ccw.c')) diff --git a/target/s390x/ioinst.c b/target/s390x/ioinst.c index fe62ba5b06..2320dd4c12 100644 --- a/target/s390x/ioinst.c +++ b/target/s390x/ioinst.c @@ -18,6 +18,7 @@ #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, @@ -574,13 +575,19 @@ 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