From: Jason Wang <jasowang@redhat.com>
To: mst@redhat.com, jasowang@redhat.com,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, peterz@infradead.org, paulmck@kernel.org,
maz@kernel.org, pasic@linux.ibm.com, cohuck@redhat.com,
eperezma@redhat.com, lulu@redhat.com, sgarzare@redhat.com,
xuanzhuo@linux.alibaba.com,
Vineeth Vijayan <vneethv@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
linux-s390@vger.kernel.org
Subject: [PATCH V5 5/9] virtio-mmio: implement synchronize_cbs()
Date: Wed, 18 May 2022 11:59:47 +0800 [thread overview]
Message-ID: <20220518035951.94220-6-jasowang@redhat.com> (raw)
In-Reply-To: <20220518035951.94220-1-jasowang@redhat.com>
Simply synchronize the platform irq that is used by us.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Halil Pasic <pasic@linux.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Vineeth Vijayan <vneethv@linux.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
drivers/virtio/virtio_mmio.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 56128b9c46eb..4a3b66e4e198 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -345,6 +345,14 @@ static void vm_del_vqs(struct virtio_device *vdev)
free_irq(platform_get_irq(vm_dev->pdev, 0), vm_dev);
}
+
+static void vm_synchronize_cbs(struct virtio_device *vdev)
+{
+ struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
+
+ synchronize_irq(platform_get_irq(vm_dev->pdev, 0));
+}
+
static struct virtqueue *vm_setup_vq(struct virtio_device *vdev, unsigned index,
void (*callback)(struct virtqueue *vq),
const char *name, bool ctx)
@@ -541,6 +549,7 @@ static const struct virtio_config_ops virtio_mmio_config_ops = {
.finalize_features = vm_finalize_features,
.bus_name = vm_bus_name,
.get_shm_region = vm_get_shm_region,
+ .synchronize_cbs = vm_synchronize_cbs,
};
--
2.25.1
next prev parent reply other threads:[~2022-05-18 4:05 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-18 3:59 [PATCH V5 0/9] rework on the IRQ hardening of virtio Jason Wang
2022-05-18 3:59 ` [PATCH V5 1/9] virtio: use virtio_device_ready() in virtio_device_restore() Jason Wang
2022-05-18 3:59 ` [PATCH V5 2/9] virtio: use virtio_reset_device() when possible Jason Wang
2022-05-19 8:32 ` Stefano Garzarella
2022-05-18 3:59 ` [PATCH V5 3/9] virtio: introduce config op to synchronize vring callbacks Jason Wang
2022-05-19 8:34 ` Stefano Garzarella
2022-05-18 3:59 ` [PATCH V5 4/9] virtio-pci: implement synchronize_cbs() Jason Wang
2022-05-18 3:59 ` Jason Wang [this message]
2022-05-18 3:59 ` [PATCH V5 6/9] virtio-ccw: " Jason Wang
2022-05-18 9:32 ` Cornelia Huck
2022-05-19 8:02 ` Jason Wang
2022-05-24 16:29 ` Halil Pasic
2022-05-18 3:59 ` [PATCH V5 7/9] virtio: allow to unbreak virtqueue Jason Wang
2022-05-18 10:03 ` Cornelia Huck
2022-05-19 8:08 ` Jason Wang
2022-05-18 3:59 ` [PATCH V5 8/9] virtio: harden vring IRQ Jason Wang
2022-05-18 3:59 ` [PATCH V5 9/9] virtio: use WARN_ON() to warn illegal status value Jason Wang
2022-05-19 8:34 ` Stefano Garzarella
2022-05-23 8:53 ` [PATCH V5 0/9] rework on the IRQ hardening of virtio Halil Pasic
2022-05-24 16:27 ` Halil Pasic
2022-05-25 2:33 ` Jason Wang
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