From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH v7 1/2] qemu-kvm: add irqfd support
Date: Sun, 31 May 2009 15:29:12 +0300
Message-ID: <4A227818.8030809@redhat.com>
References: <20090512183059.26356.94857.stgit@dev.haskins.net> <20090512183226.26356.46296.stgit@dev.haskins.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Cc: kvm@vger.kernel.org
To: Gregory Haskins <ghaskins@novell.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from mx2.redhat.com ([66.187.237.31]:51646 "EHLO mx2.redhat.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1752120AbZEaM3Q (ORCPT <rfc822;kvm@vger.kernel.org>);
	Sun, 31 May 2009 08:29:16 -0400
In-Reply-To: <20090512183226.26356.46296.stgit@dev.haskins.net>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

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