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| author | Peter Xu | 2016-09-23 07:02:27 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2016-09-27 09:00:04 +0200 |
| commit | 5bf3d319030b1e95116ba49b31339f2bdd1d3b2a (patch) | |
| tree | b4d053cd9c0825b247957f30130e668d3965ac6c /hw/ppc/spapr_iommu.c | |
| parent | memory: introduce IOMMUNotifier and its caps (diff) | |
| download | qemu-5bf3d319030b1e95116ba49b31339f2bdd1d3b2a.tar.gz qemu-5bf3d319030b1e95116ba49b31339f2bdd1d3b2a.tar.xz qemu-5bf3d319030b1e95116ba49b31339f2bdd1d3b2a.zip | |
memory: introduce IOMMUOps.notify_flag_changed
The new interface can be used to replace the old notify_started() and
notify_stopped(). Meanwhile it provides explicit flags so that IOMMUs
can know what kind of notifications it is requested for.
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1474606948-14391-3-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/ppc/spapr_iommu.c')
| -rw-r--r-- | hw/ppc/spapr_iommu.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c index f20b0b884f..ae30bbe30f 100644 --- a/hw/ppc/spapr_iommu.c +++ b/hw/ppc/spapr_iommu.c @@ -156,14 +156,17 @@ static uint64_t spapr_tce_get_min_page_size(MemoryRegion *iommu) return 1ULL << tcet->page_shift; } -static void spapr_tce_notify_started(MemoryRegion *iommu) +static void spapr_tce_notify_flag_changed(MemoryRegion *iommu, + IOMMUNotifierFlag old, + IOMMUNotifierFlag new) { - spapr_tce_set_need_vfio(container_of(iommu, sPAPRTCETable, iommu), true); -} + struct sPAPRTCETable *tbl = container_of(iommu, sPAPRTCETable, iommu); -static void spapr_tce_notify_stopped(MemoryRegion *iommu) -{ - spapr_tce_set_need_vfio(container_of(iommu, sPAPRTCETable, iommu), false); + if (old == IOMMU_NOTIFIER_NONE && new != IOMMU_NOTIFIER_NONE) { + spapr_tce_set_need_vfio(tbl, true); + } else if (old != IOMMU_NOTIFIER_NONE && new == IOMMU_NOTIFIER_NONE) { + spapr_tce_set_need_vfio(tbl, false); + } } static int spapr_tce_table_post_load(void *opaque, int version_id) @@ -246,8 +249,7 @@ static const VMStateDescription vmstate_spapr_tce_table = { static MemoryRegionIOMMUOps spapr_iommu_ops = { .translate = spapr_tce_translate_iommu, .get_min_page_size = spapr_tce_get_min_page_size, - .notify_started = spapr_tce_notify_started, - .notify_stopped = spapr_tce_notify_stopped, + .notify_flag_changed = spapr_tce_notify_flag_changed, }; static int spapr_tce_table_realize(DeviceState *dev) |