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| author | Paul Mackerras <paulus@samba.org> | 2013-04-27 00:28:37 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-05-02 15:28:36 +0200 |
| commit | 5975a2e0950291a6bfe9fd5880e7952ff87764be (patch) | |
| tree | a27a2f6645a74ad756ac4a3eba21e1086beab25d /virt/kvm | |
| parent | d133b40f2cdd527af01090ffd6a041485d1a29b4 (diff) | |
| download | linux-stable-5975a2e0950291a6bfe9fd5880e7952ff87764be.tar.gz linux-stable-5975a2e0950291a6bfe9fd5880e7952ff87764be.tar.bz2 linux-stable-5975a2e0950291a6bfe9fd5880e7952ff87764be.zip | |
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/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 5da9f02a2a67..e6e7abe16d05 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; } |