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| author | Peter Xu <peterx@redhat.com> | 2018-05-18 15:25:12 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-05-23 17:33:57 +0300 |
| commit | 4f8a62a933a79094e44bc1b16b63bb23e62d67b4 (patch) | |
| tree | 4b1488663090cc8f14e65e57b380a91395b8bdff /hw/char/digic-uart.c | |
| parent | 1d9efa73e12ddf361ea997c2d532cc4afa6674d1 (diff) | |
| download | qemu-4f8a62a933a79094e44bc1b16b63bb23e62d67b4.zip | |
intel-iommu: only do page walk for MAP notifiers
For UNMAP-only IOMMU notifiers, we don't need to walk the page tables.
Fasten that procedure by skipping the page table walk. That should
boost performance for UNMAP-only notifiers like vhost.
CC: QEMU Stable <qemu-stable@nongnu.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/char/digic-uart.c')
0 files changed, 0 insertions, 0 deletions