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authorYi Min Zhao <zyimin@linux.ibm.com>2019-01-08 18:37:30 +0100
committerCornelia Huck <cohuck@redhat.com>2019-01-18 11:52:01 +0100
commit6e92c70c37547b6a247a206651dfcc583a57f484 (patch)
treeafceec8e082e87d26d8117173b1ed63b01795319 /configure
parent3549f8c9e4f0ef1c3417ff43b2164f68ad34b922 (diff)
s390x/pci: add common function measurement block
Common function measurement block is used to report zPCI internal counters of successful pcilg/stg/stb and rpcit instructions to a memory location provided by the program. This patch introduces a new ZpciFmb structure and schedules a timer callback to copy the zPCI measures to the FMB in the guest memory at an interval time set to 4s. An error while attemping to update the FMB, would generate an error event to the guest. The pcilg/stg/stb and rpcit interception handlers increase the related counter on a successful call. The guest shall pass a null FMBA (FMB address) in the FIB (Function Information Block) when it issues a Modify PCI Function Control instruction to switch off FMB and stop the corresponding timer. Signed-off-by: Yi Min Zhao <zyimin@linux.ibm.com> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Message-Id: <1546969050-8884-2-git-send-email-pmorel@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Collin Walling <walling@linux.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
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