Re: [Qemu-devel] [PATCH v7 12/17] memory: provide iommu_replay_all()

[David Gibson]

On Tue, Feb 07, 2017 at 04:28:14PM +0800, Peter Xu wrote:
> This is an "global" version of exising memory_region_iommu_replay() - we
> announce the translations to all the registered notifiers, instead of a
> specific one.
> 
> Signed-off-by: Peter Xu <address@hidden>

Reviewed-by: David Gibson <address@hidden>

> ---
>  include/exec/memory.h | 8 ++++++++
>  memory.c              | 9 +++++++++
>  2 files changed, 17 insertions(+)
> 
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index f76e174..606ce88 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -707,6 +707,14 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
> IOMMUNotifier *n,
>                                  bool is_write);
>  
>  /**
> + * memory_region_iommu_replay_all: replay existing IOMMU translations
> + * to all the notifiers registered.
> + *
> + * @mr: the memory region to observe
> + */
> +void memory_region_iommu_replay_all(MemoryRegion *mr);
> +
> +/**
>   * memory_region_unregister_iommu_notifier: unregister a notifier for
>   * changes to IOMMU translation entries.
>   *
> diff --git a/memory.c b/memory.c
> index 523c43f..9e1bb75 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -1646,6 +1646,15 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
> IOMMUNotifier *n,
>      }
>  }
>  
> +void memory_region_iommu_replay_all(MemoryRegion *mr)
> +{
> +    IOMMUNotifier *notifier;
> +
> +    IOMMU_NOTIFIER_FOREACH(notifier, mr) {
> +        memory_region_iommu_replay(mr, notifier, false);
> +    }
> +}
> +
>  void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
>                                               IOMMUNotifier *n)
>  {

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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