Re: [RFC PATCH 9/9] kvm_main.c: handle atomic memslot update

From: David Hildenbrand
Date: Tue Sep 27 2022 - 03:46:25 EST


On 09.09.22 12:45, Emanuele Giuseppe Esposito wrote:
When kvm_vm_ioctl_set_memory_region_list() is invoked, we need
to make sure that all memslots are updated in the inactive list
and then swap (preferreably only once) the lists, so that all
changes are visible immediately.

The only issue is that DELETE and MOVE need to perform 2 swaps:
firstly replace old memslot with invalid, and then remove invalid.


I'm curious, how would a resize (grow/shrink) or a split be handled?

--
Thanks,

David / dhildenb