From: "Dr. David Alan Gilbert" <dgilb...@redhat.com> Hyperv's synic (that we emulate) is a feature that allows the guest to place some magic (4k) pages of RAM anywhere it likes in GPA. This confuses vhost's RAM section merging when these pages land over the top of hugepages.
Since they're not normal RAM, and they shouldn't have vhost DMAing into them, exclude them from the vhost set. This v2 is a complete rework after the v1 review; I've now got a flag on MemoryRegion's that we set. bz: https://bugzilla.redhat.com/show_bug.cgi?id=1779041 Dr. David Alan Gilbert (3): vhost: Add names to section rounded warning memory: Allow a MemoryRegion to be marked no_vhost hyperv/synic: Mark regions as no vhost hw/hyperv/hyperv.c | 8 ++++++++ hw/virtio/vhost.c | 10 ++++++---- include/exec/memory.h | 21 +++++++++++++++++++++ memory.c | 15 +++++++++++++++ 4 files changed, 50 insertions(+), 4 deletions(-) -- 2.24.1
