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[PULL,for-2.11,1/2] s390x/pci: let pci devices start in configured mode

Message ID 20171109153204.26436-2-cohuck@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Cornelia Huck Nov. 9, 2017, 3:32 p.m. UTC 
From: Christian Borntraeger <borntraeger@de.ibm.com>

Currently, to enable a pci device in the guest, the user has to issue
echo 1 > /sys/bus/pci/slots/00000000/power. This is not what people
expect. On an LPAR, the user can put a PCI device in configured or
deconfigured state via IOCDS. The "start in deconfigured state" can be
used for "sharing" a pci function across LPARs. This is not what we are
going to use in KVM, so always start configured.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Message-Id: <20171107175455.73793-2-borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 hw/s390x/s390-pci-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index e7a58e81f7..2b1e1409bf 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -715,7 +715,7 @@  static void s390_pcihost_hot_plug(HotplugHandler *hotplug_dev,
         pbdev->pdev = pdev;
         pbdev->iommu = s390_pci_get_iommu(s, pdev->bus, pdev->devfn);
         pbdev->iommu->pbdev = pbdev;
-        pbdev->state = ZPCI_FS_STANDBY;
+        pbdev->state = ZPCI_FS_DISABLED;
 
         if (s390_pci_msix_init(pbdev)) {
             error_setg(errp, "MSI-X support is mandatory "