Re: [PATCH 13/21] KVM: Add support for enabling capabilities per-vcpu

[Avi Kivity <avi@redhat.com>]

On 03/24/2010 10:48 PM, Alexander Graf wrote:
> Some times we don't want all capabilities to be available to all
> our vcpus. One example for that is the OSI interface, implemented
> in the next patch.
>
> In order to have a generic mechanism in how to enable capabilities
> individually, this patch introduces a new ioctl that can be used
> for this purpose. That way features we don't want in all guests or
> userspace configurations can just not be enabled and we're good.
>
>   Documentation/kvm/api.txt  |   35 +++++++++++++++++++++++++++++++++++
>   arch/powerpc/kvm/powerpc.c |   27 +++++++++++++++++++++++++++
>   include/linux/kvm.h        |   12 ++++++++++++
>   3 files changed, 74 insertions(+), 0 deletions(-)
>
>    

Should really have been generic instead of ppc-specific, but can be 
moved later.

> @@ -697,6 +707,8 @@ struct kvm_clock_data {
>   /* Available with KVM_CAP_DEBUGREGS */
>   #define KVM_GET_DEBUGREGS         _IOR(KVMIO,  0xa1, struct kvm_debugregs)
>   #define KVM_SET_DEBUGREGS         _IOW(KVMIO,  0xa2, struct kvm_debugregs)
> +/* No need for CAP, because then it just always fails */
> +#define KVM_ENABLE_CAP            _IOW(KVMIO,  0xa3, struct kvm_enable_cap)
>    

I dropped this comment while applying.

-- 
error compiling committee.c: too many arguments to function