Re: [PATCH v7 1/2] qemu-kvm: add irqfd support

[Avi Kivity <avi@redhat.com>]

Gregory Haskins wrote:
> irqfd lets you create an eventfd based file-desriptor to inject interrupts
> to a kvm guest.  We associate one gsi per fd for fine-grained routing.
>
>   

Sorry, getting to userspace a little late in the game.

> @@ -34,6 +34,7 @@
>  #include <string.h>
>  #include <errno.h>
>  #include <sys/ioctl.h>
> +#include <sys/eventfd.h>
>   

This only made it in 2.6.22.  So it needs a ./configure -time check for 
existence.

> +int kvm_create_irqfd(kvm_context_t kvm, int gsi, int flags)
> +{
> +	return -ENOENT;
> +}
> +
> +int kvm_destroy_irqfd(kvm_context_t kvm, int fd, int flags)
> +{
> +	return -ENOENT;
> +}
>   

-ENOSYS is more traditional.


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