From 6978bfaa688df55dc9ea581fe32b226f81aebc3a Mon Sep 17 00:00:00 2001 From: Bharat Bhushan Date: Fri, 30 Oct 2020 19:05:06 +0100 Subject: virtio-iommu: Add notify_flag_changed() memory region callback Add notify_flag_changed() to notice when memory listeners are added and removed. Acked-by: Eric Auger Signed-off-by: Bharat Bhushan Signed-off-by: Jean-Philippe Brucker Message-Id: <20201030180510.747225-7-jean-philippe@linaro.org> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/trace-events | 2 ++ hw/virtio/virtio-iommu.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+) (limited to 'hw/virtio') diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index ea3c3b25ad..982d0002a6 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, uint32_t flags) "mr=%s virt_start=0x%"PRIx64" virt_end=0x%"PRIx64" phys_start=0x%"PRIx64" flags=%d" 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 to mr %s" +virtio_iommu_notify_flag_del(const char *name) "del notifier from mr %s" # virtio-mem.c virtio_mem_send_response(uint16_t type) "type=%" PRIu16 diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index 985257c88f..78e07aa40a 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -886,6 +886,19 @@ 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); @@ -1116,6 +1129,7 @@ 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 = { -- cgit v1.2.3-55-g7522