diff options
| author | Yi Min Zhao | 2019-01-08 18:37:30 +0100 |
|---|---|---|
| committer | Cornelia Huck | 2019-01-18 11:52:01 +0100 |
| commit | 6e92c70c37547b6a247a206651dfcc583a57f484 (patch) | |
| tree | afceec8e082e87d26d8117173b1ed63b01795319 /hw/s390x/s390-pci-bus.c | |
| parent | s390x/pci: Ignore the unplug call if we already have a release_timer (diff) | |
| download | qemu-6e92c70c37547b6a247a206651dfcc583a57f484.tar.gz qemu-6e92c70c37547b6a247a206651dfcc583a57f484.tar.xz qemu-6e92c70c37547b6a247a206651dfcc583a57f484.zip | |
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>
Diffstat (limited to 'hw/s390x/s390-pci-bus.c')
| -rw-r--r-- | hw/s390x/s390-pci-bus.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c index 9d23c1b300..f017c1ded0 100644 --- a/hw/s390x/s390-pci-bus.c +++ b/hw/s390x/s390-pci-bus.c @@ -1000,6 +1000,7 @@ static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev, bus = pci_get_bus(pci_dev); devfn = pci_dev->devfn; object_unparent(OBJECT(pci_dev)); + fmb_timer_free(pbdev); s390_pci_msix_free(pbdev); s390_pci_iommu_free(s, bus, devfn); pbdev->pdev = NULL; @@ -1148,6 +1149,7 @@ static void s390_pci_device_realize(DeviceState *dev, Error **errp) } zpci->state = ZPCI_FS_RESERVED; + zpci->fmb.format = ZPCI_FMB_FORMAT; } static void s390_pci_device_reset(DeviceState *dev) @@ -1172,7 +1174,7 @@ static void s390_pci_device_reset(DeviceState *dev) pci_dereg_ioat(pbdev->iommu); } - pbdev->fmb_addr = 0; + fmb_timer_free(pbdev); } static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name, |