Hi Jean,
On 10/8/20 7:15 PM, Jean-Philippe Brucker wrote:
> From: Bharat Bhushan <bbhush...@marvell.com>
>
> Add notify_flag_changed() to notice when memory listeners are added and
> removed.
>
> Signed-off-by: Bharat Bhushan <bbhush...@marvell.com>
> Signed-off-by: Jean-Philippe Brucker <jean-phili...@linaro.org>
> ---
> v10:
> * Use notifier flags instead of notifiers_list
> * Homogenize tracepoints
> ---
> hw/virtio/virtio-iommu.c | 14 ++++++++++++++
> hw/virtio/trace-events | 2 ++
> 2 files changed, 16 insertions(+)
>
> diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
> index d2b96846134..8823bfc804a 100644
> --- a/hw/virtio/virtio-iommu.c
> +++ b/hw/virtio/virtio-iommu.c
> @@ -901,6 +901,19 @@ unlock:
> qemu_mutex_unlock(&s->mutex);
> }
>
> +static int virtio_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu_mr,
> + IOMMUNotifierFlag old,
> + IOMMUNotifierFlag new,
> + Error **errp)
> +{
> + if (old == IOMMU_NOTIFIER_NONE) {
> + trace_virtio_iommu_notify_flag_add(iommu_mr->parent_obj.name);
> + } else if (new == IOMMU_NOTIFIER_NONE) {
> + trace_virtio_iommu_notify_flag_del(iommu_mr->parent_obj.name);
> + }
> + return 0;
> +}
> +
> static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
> {
> VirtIODevice *vdev = VIRTIO_DEVICE(dev);
> @@ -1132,6 +1145,7 @@ static void
> virtio_iommu_memory_region_class_init(ObjectClass *klass,
>
> imrc->translate = virtio_iommu_translate;
> imrc->replay = virtio_iommu_replay;
> + imrc->notify_flag_changed = virtio_iommu_notify_flag_changed;
> }
>
> static const TypeInfo virtio_iommu_info = {
> diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events
> index 16f4729db4b..9108992bcc3 100644
> --- a/hw/virtio/trace-events
> +++ b/hw/virtio/trace-events
> @@ -109,6 +109,8 @@ virtio_iommu_fill_resv_property(uint32_t devid, uint8_t
> subtype, uint64_t start,
> virtio_iommu_notify_map(const char *name, uint64_t virt_start, uint64_t
> virt_end, uint64_t phys_start) "mr=%s virt_start=0x%"PRIx64"
> virt_end=0x%"PRIx64" phys_start=0x%"PRIx64
> virtio_iommu_notify_unmap(const char *name, uint64_t virt_start, uint64_t
> virt_end) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64
> virtio_iommu_remap(const char *name, uint64_t virt_start, uint64_t virt_end,
> uint64_t phys_start) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64"
> phys_start=0x%"PRIx64
> +virtio_iommu_notify_flag_add(const char *name) "add notifier mr=%s"
Maybe "add notifier %d to mr=%s"
> +virtio_iommu_notify_flag_del(const char *name) "del notifier mr=%s"
from?
>
> # virtio-mem.c
> virtio_mem_send_response(uint16_t type) "type=%" PRIu16
>
Besides
Acked-by: Eric Auger <eric.au...@redhat.com>
Thanks
Eric
