Commit 2c28c490 authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Cornelia Huck
Browse files

s390x/pci: let pci devices start in configured mode 



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: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Acked-by: default avatarYi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: default avatarPierre Morel <pmorel@linux.vnet.ibm.com>
Message-Id: <20171107175455.73793-2-borntraeger@de.ibm.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent b0fbe46a

hw/s390x/s390-pci-bus.c

+1 −1
Original line number Diff line number Diff line
@@ -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 "