Commit d151f63f authored Oct 08, 2012 by Shuah Khan Committed by Marcelo Tosatti Oct 10, 2012

KVM: change kvm_assign_device() to print return value when iommu_attach_device() fails



Change existing kernel error message to include return value from
iommu_attach_device() when it fails. This will help debug device
assignment failures more effectively.

Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

parent b6785def

virt/kvm/iommu.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -168,11 +168,7 @@ int kvm_assign_device(struct kvm *kvm,

		r = iommu_attach_device(domain, &pdev->dev);
		if (r) {
		printk(KERN_ERR "assign device %x:%x:%x.%x failed",
		pci_domain_nr(pdev->bus),
		pdev->bus->number,
		PCI_SLOT(pdev->devfn),
		PCI_FUNC(pdev->devfn));
		dev_err(&pdev->dev, "kvm assign device failed ret %d", r);
		return r;
		}