aboutsummaryrefslogtreecommitdiff
path: root/hw/intc/ioapic.c
diff options
context:
space:
mode:
authorDavid Hildenbrand <david@redhat.com>2023-09-26 20:57:38 +0200
committerDavid Hildenbrand <david@redhat.com>2023-10-12 14:15:22 +0200
commitee6398d862c108f8136a26d93d26680f3d222a3a (patch)
treefb9f1a9d643b3f365a8eb16c5d621007dcaab66d /hw/intc/ioapic.c
parent533f5d667909177f2890fca0bd64ad67297d7ba6 (diff)
downloadqemu-ee6398d862c108f8136a26d93d26680f3d222a3a.zip
qemu-ee6398d862c108f8136a26d93d26680f3d222a3a.tar.gz
qemu-ee6398d862c108f8136a26d93d26680f3d222a3a.tar.bz2
virtio-mem: Mark memslot alias memory regions unmergeable
Let's mark the memslot alias memory regions as unmergable, such that flatview and vhost won't merge adjacent memory region aliases and we can atomically map/unmap individual aliases without affecting adjacent alias memory regions. This handles vhost and vfio in multiple-memslot mode correctly (which do not support atomic memslot updates) and avoids the temporary removal of large memslots, which can be an expensive operation. For example, vfio might have to unpin + repin a lot of memory, which is undesired. Message-ID: <20230926185738.277351-19-david@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com>
Diffstat (limited to 'hw/intc/ioapic.c')
0 files changed, 0 insertions, 0 deletions