From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33521) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cQpA3-0007Pj-Sz for qemu-devel@nongnu.org; Tue, 10 Jan 2017 00:39:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cQpA1-0005b3-BD for qemu-devel@nongnu.org; Tue, 10 Jan 2017 00:39:55 -0500 Received: from mail.kernel.org ([198.145.29.136]:47874) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cQpA1-0005a5-57 for qemu-devel@nongnu.org; Tue, 10 Jan 2017 00:39:53 -0500 Date: Tue, 10 Jan 2017 07:39:48 +0200 From: "Michael S. Tsirkin" Message-ID: <1484026704-28027-12-git-send-email-mst@redhat.com> References: <1484026704-28027-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1484026704-28027-1-git-send-email-mst@redhat.com> Subject: [Qemu-devel] [PULL 11/41] memory: handle alias for iommu notifier List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Jason Wang , Paolo Bonzini , Peter Xu From: Jason Wang Cc: Paolo Bonzini Acked-by: Paolo Bonzini Signed-off-by: Jason Wang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Peter Xu --- 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(&mr->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); } -- MST