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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1749654399; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=O0eT/RRLKkx75jgMhDk96Io1CaksG/gWiIfL1S0D1JI=; b=ceF+dDAYZ/ToI7Evv5Kc7ZinXIBHQAr6ni2c7s0Dyah70wCR4fP07jcm81mWD+HsOLyopT WQNpOpIToEY/dx26+8wuRkkPRabVE8Npq9JtCjx70J1xCdGrJPebfqBE9YCcviTFinHcrV vpOeEYjDcmOm8fGY5y+ZJA5K88sWRXQ= X-MC-Unique: 9eYkzUvsM9yuaHHDHAYnhg-1 X-Mimecast-MFC-AGG-ID: 9eYkzUvsM9yuaHHDHAYnhg_1749654395 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Rorie Reyes , Anthony Krowiak , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 04/27] hw/vfio/ap: store object indicating AP config changed in a queue Date: Wed, 11 Jun 2025 17:05:56 +0200 Message-ID: <20250611150620.701903-5-clg@redhat.com> In-Reply-To: <20250611150620.701903-1-clg@redhat.com> References: <20250611150620.701903-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 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=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=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 @redhat.com) X-ZM-MESSAGEID: 1749655262049116600 From: Rorie Reyes 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 Link: https://lore.kernel.org/qemu-devel/20250609164418.17585-3-rreyes@linu= x.ibm.com Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio/ap.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/hw/vfio/ap.c b/hw/vfio/ap.c index 93c74ebedb937b7058b2c55a8b85559be1d7c9ed..681fd4a4f1cb861cb287fca9ce2= 134e55ec20323 100644 --- a/hw/vfio/ap.c +++ b/hw/vfio/ap.c @@ -21,6 +21,7 @@ #include "hw/s390x/css.h" #include "qemu/error-report.h" #include "qemu/event_notifier.h" +#include "qemu/lockable.h" #include "qemu/main-loop.h" #include "qemu/module.h" #include "qemu/option.h" @@ -41,6 +42,15 @@ struct VFIOAPDevice { EventNotifier cfg_notifier; }; =20 +typedef struct APConfigChgEvent { + QTAILQ_ENTRY(APConfigChgEvent) next; +} APConfigChgEvent; + +static QTAILQ_HEAD(, APConfigChgEvent) cfg_chg_events =3D + QTAILQ_HEAD_INITIALIZER(cfg_chg_events); + +static QemuMutex cfg_chg_events_lock; + OBJECT_DECLARE_SIMPLE_TYPE(VFIOAPDevice, VFIO_AP_DEVICE) =20 static void vfio_ap_compute_needs_reset(VFIODevice *vdev) @@ -74,12 +84,19 @@ 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); + + WITH_QEMU_LOCK_GUARD(&cfg_chg_events_lock) { + QTAILQ_INSERT_TAIL(&cfg_chg_events, cfg_chg_event, next); + } + css_generate_css_crws(0); =20 } --=20 2.49.0