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KVM: S390: take a full byte as ext_param indicator

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Currenty the ext_param field only distinguishes between "config change" and
"vring interrupt". We can do a lot more with it though, so let's enable a
full byte of possible values and constants to #defines while at it.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Alexander Graf
2010-08-24 15:48:50 +02:00
committed by Avi Kivity
parent 189be38db3
commit fc678d67fe
2 changed files with 19 additions and 6 deletions
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6
arch/s390/include/asm/kvm_virtio.h
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@@ -54,4 +54,10 @@ struct kvm_vqconfig {
* This is pagesize for historical reasons. */
#define KVM_S390_VIRTIO_RING_ALIGN 4096
/* These values are supposed to be in ext_params on an interrupt */
#define VIRTIO_PARAM_MASK 0xff
#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
#endif