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| author | Bharat Bhushan <bbhushan2@marvell.com> | 2020-10-30 19:05:07 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-11-03 07:19:27 -0500 |
| commit | 457f8cbbd80f631cee02057c3c844a43ca65b5c4 (patch) | |
| tree | 23fea6608b60d057ca3c2e6c7a3fbf38fa337bd0 /softmmu | |
| parent | 6978bfaa688df55dc9ea581fe32b226f81aebc3a (diff) | |
| download | qemu-457f8cbbd80f631cee02057c3c844a43ca65b5c4.zip qemu-457f8cbbd80f631cee02057c3c844a43ca65b5c4.tar.gz qemu-457f8cbbd80f631cee02057c3c844a43ca65b5c4.tar.bz2 | |
memory: Add interface to set iommu page size mask
Allow to set the page size mask supported by an iommu memory region.
This enables a vIOMMU to communicate the page size granule supported by
an assigned device, on hosts that use page sizes greater than 4kB.
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-Id: <20201030180510.747225-8-jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'softmmu')
| -rw-r--r-- | softmmu/memory.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/softmmu/memory.c b/softmmu/memory.c index 21d533d..71951fe 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -1841,6 +1841,19 @@ static int memory_region_update_iommu_notify_flags(IOMMUMemoryRegion *iommu_mr, return ret; } +int memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr, + uint64_t page_size_mask, + Error **errp) +{ + IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr); + int ret = 0; + + if (imrc->iommu_set_page_size_mask) { + ret = imrc->iommu_set_page_size_mask(iommu_mr, page_size_mask, errp); + } + return ret; +} + int memory_region_register_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n, Error **errp) { |