Re: [Qemu-devel] [PATCH V2 09/11] memory: handle alias for iommu notifier

[Paolo Bonzini]

On 03/11/2016 10:27, Jason Wang wrote:
> Cc: Paolo Bonzini 
> Signed-off-by: Jason Wang 
> ---
>  memory.c | 9 +
>  1 file changed, 9 insertions(+)
> 
> diff --git a/memory.c b/memory.c
> index 33110e9..2bfc37f 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -1603,6 +1603,11 @@ static void 
> memory_region_update_iommu_notify_flags(MemoryRegion *mr)
>  void memory_region_register_iommu_notifier(MemoryRegion *mr,
> IOMMUNotifier *n)
>  {
> +if (mr->alias) {
> +memory_region_register_iommu_notifier(mr->alias, n);
> +return;
> +}
> +
>  /* We need to register for at least one bitfield */
>  assert(n->notifier_flags != IOMMU_NOTIFIER_NONE);
>  QLIST_INSERT_HEAD(>iommu_notify, n, node);
> @@ -1643,6 +1648,10 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
> IOMMUNotifier *n,
>  void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
>   IOMMUNotifier *n)
>  {
> +if (mr->alias) {
> +memory_region_unregister_iommu_notifier(mr->alias, n);
> +return;
> +}
>  QLIST_REMOVE(n, node);
>  memory_region_update_iommu_notify_flags(mr);
>  }
> 

Acked-by: Paolo Bonzini 

[Qemu-devel] [PATCH V2 09/11] memory: handle alias for iommu notifier

[Jason Wang]

Cc: Paolo Bonzini 
Signed-off-by: Jason Wang 
---
 memory.c | 9 +
 1 file changed, 9 insertions(+)

diff --git a/memory.c b/memory.c
index 33110e9..2bfc37f 100644
--- a/memory.c
+++ b/memory.c
@@ -1603,6 +1603,11 @@ static void 
memory_region_update_iommu_notify_flags(MemoryRegion *mr)
 void memory_region_register_iommu_notifier(MemoryRegion *mr,
IOMMUNotifier *n)
 {
+if (mr->alias) {
+memory_region_register_iommu_notifier(mr->alias, n);
+return;
+}
+
 /* We need to register for at least one bitfield */
 assert(n->notifier_flags != IOMMU_NOTIFIER_NONE);
 QLIST_INSERT_HEAD(>iommu_notify, n, node);
@@ -1643,6 +1648,10 @@ void memory_region_iommu_replay(MemoryRegion *mr, 
IOMMUNotifier *n,
 void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
  IOMMUNotifier *n)
 {
+if (mr->alias) {
+memory_region_unregister_iommu_notifier(mr->alias, n);
+return;
+}
 QLIST_REMOVE(n, node);
 memory_region_update_iommu_notify_flags(mr);
 }
-- 
2.7.4