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authorPaul Mackerras <paulus@samba.org>2013-04-27 00:28:37 +0000
committerAlexander Graf <agraf@suse.de>2013-05-02 15:28:36 +0200
commit5975a2e0950291a6bfe9fd5880e7952ff87764be (patch)
treea27a2f6645a74ad756ac4a3eba21e1086beab25d /virt
parentd133b40f2cdd527af01090ffd6a041485d1a29b4 (diff)
downloadvexpress-lsk-5975a2e0950291a6bfe9fd5880e7952ff87764be.tar.gz
KVM: PPC: Book3S: Add API for in-kernel XICS emulation
This adds the API for userspace to instantiate an XICS device in a VM and connect VCPUs to it. The API consists of a new device type for the KVM_CREATE_DEVICE ioctl, a new capability KVM_CAP_IRQ_XICS, which functions similarly to KVM_CAP_IRQ_MPIC, and the KVM_IRQ_LINE ioctl, which is used to assert and deassert interrupt inputs of the XICS. The XICS device has one attribute group, KVM_DEV_XICS_GRP_SOURCES. Each attribute within this group corresponds to the state of one interrupt source. The attribute number is the same as the interrupt source number. This does not support irq routing or irqfd yet. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5da9f02a2a6..e6e7abe16d0 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2247,6 +2247,11 @@ static int kvm_ioctl_create_device(struct kvm *kvm,
ops = &kvm_mpic_ops;
break;
#endif
+#ifdef CONFIG_KVM_XICS
+ case KVM_DEV_TYPE_XICS:
+ ops = &kvm_xics_ops;
+ break;
+#endif
default:
return -ENODEV;
}