KVM: s390: fix cmma migration for multiple memory slots

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commit 32aa144fc3 upstream.

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>
Fixes: 190df4a212 (KVM: s390: CMMA tracking, ESSA emulation, migration mode)
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Christian Borntraeger 2017-12-15 13:14:31 +01:00 • committed by Greg Kroah-Hartman

parent 756ac0b046

commit 853bcadeef

1 changed files with 5 additions and 4 deletions

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arch/s390/kvm/kvm-s390.c

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