From: Avi Kivity <a...@redhat.com> Signed-off-by: Avi Kivity <a...@redhat.com>
diff --git a/Documentation/kvm/api.txt b/Documentation/kvm/api.txt index 6f36235..baa8fde 100644 --- a/Documentation/kvm/api.txt +++ b/Documentation/kvm/api.txt @@ -974,7 +974,9 @@ pending operations. __u32 pad; } hypercall; -Unused. +Unused. This was once used for 'hypercall to userspace'. To implement +such functionality, use KVM_EXIT_IO (x86) or KVM_EXIT_MMIO (all except s390). +Note KVM_EXIT_IO is significantly faster than KVM_EXIT_MMIO. /* KVM_EXIT_TPR_ACCESS */ struct { -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html