KVM: s390: implement the RI support of guest

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This patch adds runtime instrumentation support for KVM guest. We need to
setup a save area for the runtime instrumentation-controls control block(RICCB)
and implement the necessary interfaces to live migrate the guest settings.

We setup the sie control block in a way, that the runtime
instrumentation instructions of a guest are handled by hardware.

We also add a capability KVM_CAP_S390_RI to make this feature opt-in as
it needs migration support.

Signed-off-by: Fan Zhang <zhangfan@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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Fan Zhang 2016-01-07 18:24:29 +08:00 • committed by Christian Borntraeger

parent c57ee5faf4

commit c6e5f16637

4 changed files with 28 additions and 1 deletions

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3

arch/s390/include/asm/kvm_host.h

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3

arch/s390/include/uapi/asm/kvm.h

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22

arch/s390/kvm/kvm-s390.c

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1

include/uapi/linux/kvm.h

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