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Re: [PATCH V2 3/5] memory: introduce memory_region_unmap_iommu_notifier_


From: Thomas Huth
Subject: Re: [PATCH V2 3/5] memory: introduce memory_region_unmap_iommu_notifier_range()
Date: Tue, 7 Mar 2023 14:19:29 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0

On 23/02/2023 07.59, Jason Wang wrote:
This patch introduces a new helper to unmap the range of a specific
IOMMU notifier.

Signed-off-by: Jason Wang <jasowang@redhat.com>
---
  include/exec/memory.h | 10 ++++++++++
  softmmu/memory.c      | 13 +++++++++++++
  2 files changed, 23 insertions(+)

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 2e602a2fad..6fa0b071f0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1731,6 +1731,16 @@ void memory_region_notify_iommu(IOMMUMemoryRegion 
*iommu_mr,
  void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
                                      IOMMUTLBEvent *event);
+/**
+ * memory_region_unmap_iommu_notifier_range: notify a unmap for an IOMMU
+ *                                           translation that covers the
+ *                                           range of a notifier
+ *
+ * @notifier: the notifier to be notified
+ */
+void memory_region_unmap_iommu_notifier_range(IOMMUNotifier *n);

FWIW, this causes warning during the build process for me now:

../include/exec/memory.h:1741: warning: Function parameter or member 'n' not 
described in 'memory_region_unmap_iommu_notifier_range'
../include/exec/memory.h:1741: warning: Excess function parameter 'notifier' 
description in 'memory_region_unmap_iommu_notifier_range'

 Thomas




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