[PATCH v1 0/2] KVM: s390: fix storage attributes migration

[Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>]

This patchset fixes the migration of storage attributes.

Each memory slot has a bitmap, with 2 bits per page, used to keep track
of dirty pages during migration. We only use one bit, the other would be
wasted. With this patch, the second bit is now used to keep track of
dirty storage attributes. This means that we do not need anymore to
allocate and manage the additional bitmap, and no extra work is needed
to keep track of memory slots. The code does get a little bit more
complicated when accounting for the memory slots, but overall it should
be more robust.

the first patch simply introduces two auxiliary functions, while the
second patch does the actual job.

Claudio Imbrenda (2):
  KVM: s390x: some utility functions for migration
  KVM: s390: Fix storage attributes migration with memory slots

 arch/s390/include/asm/kvm_host.h |   9 +-
 arch/s390/kvm/kvm-s390.c         | 286 +++++++++++++++++++++++++--------------
 arch/s390/kvm/priv.c             |  33 +++--
 3 files changed, 208 insertions(+), 120 deletions(-)

-- 
2.7.4