[PATCH 0/2] kvm: clear dirty bitmaps from all overlapping memslots

[Paolo Bonzini <pbonzini@redhat.com>]

A single ram_addr (representing a host-virtual address) could be aliased
to multiple guest physical addresses.  Since the KVM dirty page reporting
works on guest physical addresses, we need to clear all of the aliases
when a page is migrated, or there is a risk of losing writes to the
aliases that were not cleared.

Paolo

Paolo Bonzini (2):
  kvm: extract kvm_log_clear_one_slot
  kvm: clear dirty bitmaps from all overlapping memslots

 accel/kvm/kvm-all.c | 114 ++++++++++++++++++++++++++++++----------------------
 1 file changed, 66 insertions(+), 48 deletions(-)

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1.8.3.1