kvm: KVM_CAP_IOMMU only available with device assignment

Fix build with CONFIG_PCI unset by linking KVM_CAP_IOMMU to
device assignment config option.  It has no purpose otherwise.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8747fef7fd59..96f914e828d4 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2544,9 +2544,11 @@ int kvm_dev_ioctl_check_extension(long ext)
         case KVM_CAP_PV_MMU:    /* obsolete */
                 r = 0;
                 break;
+#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
         case KVM_CAP_IOMMU:
                 r = iommu_present(&pci_bus_type);
                 break;
+#endif
         case KVM_CAP_MCE:
                 r = KVM_MAX_MCE_BANKS;
                 break;