KVM: s390: fix cmma migration for multiple memory slots

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When multiple memory slots are present the cmma migration code
does not allocate enough memory for the bitmap. The memory slots
are sorted in reverse order, so we must use gfn and size of
slot[0] instead of the last one.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # 4.13+
Fixes: 190df4a212 (KVM: s390: CMMA tracking, ESSA emulation, migration mode)
Reviewed-by: Cornelia Huck <cohuck@redhat.com>

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Christian Borntraeger 2017-12-15 13:14:31 +01:00

parent ca76ec9ca8

commit 32aa144fc3

1 changed files with 5 additions and 4 deletions

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arch/s390/kvm/kvm-s390.c

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