Commit 512fa408 authored by Peter Xu's avatar Peter Xu Committed by Eduardo Habkost
Browse files

memory: provide IOMMU_NOTIFIER_FOREACH macro 



A new macro is provided to iterate all the IOMMU notifiers hooked
under specific IOMMU memory region.

Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Reviewed-by: default avatar\"Michael S. Tsirkin\" <mst@redhat.com>
Signed-off-by: default avatarPeter Xu <peterx@redhat.com>
Message-Id: <1491562755-23867-3-git-send-email-peterx@redhat.com>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent 698feb5e

include/exec/memory.h

+3 −0
Original line number Diff line number Diff line
@@ -239,6 +239,9 @@ struct MemoryRegion { 
    IOMMUNotifierFlag iommu_notify_flags;

};



#define IOMMU_NOTIFIER_FOREACH(n, mr) \

    QLIST_FOREACH((n), &(mr)->iommu_notify, node)



/**

 * MemoryListener: callbacks structure for updates to the physical memory map

 *

memory.c

+2 −2
Original line number Diff line number Diff line
@@ -1583,7 +1583,7 @@ static void memory_region_update_iommu_notify_flags(MemoryRegion *mr) 
    IOMMUNotifierFlag flags = IOMMU_NOTIFIER_NONE;

    IOMMUNotifier *iommu_notifier;



    QLIST_FOREACH(iommu_notifier, &mr->iommu_notify, node) {

    IOMMU_NOTIFIER_FOREACH(iommu_notifier, mr) {

        flags |= iommu_notifier->notifier_flags;

    }
@@ -1667,7 +1667,7 @@ void memory_region_notify_iommu(MemoryRegion *mr, 
        request_flags = IOMMU_NOTIFIER_UNMAP;

    }



    QLIST_FOREACH(iommu_notifier, &mr->iommu_notify, node) {

    IOMMU_NOTIFIER_FOREACH(iommu_notifier, mr) {

        /*

         * Skip the notification if the notification does not overlap

         * with registered range.