From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753916AbZDXEZ2 (ORCPT ); Fri, 24 Apr 2009 00:25:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751453AbZDXEZO (ORCPT ); Fri, 24 Apr 2009 00:25:14 -0400 Received: from victor.provo.novell.com ([137.65.250.26]:35845 "EHLO victor.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751129AbZDXEZN (ORCPT ); Fri, 24 Apr 2009 00:25:13 -0400 From: Gregory Haskins Subject: [KVM PATCH v2 0/2] irqfd To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, avi@redhat.com, davidel@xmailserver.org Date: Fri, 24 Apr 2009 00:25:08 -0400 Message-ID: <20090424042142.1796.60756.stgit@dev.haskins.net> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (Applies to kvm.git b59cd3560111) This series implements a mechanism called "irqfd". It lets you create an eventfd based file-desriptor to inject interrupts to the guest. We associate one gsi per fd for proper routing granularity. This is v2. Changes since v1 *) Dropped notifier_chain based callbacks in favor of wait_queue_t::func and file::poll based callbacks (Thanks to Davide for the suggestion) -------- We do not have a user of this interface in this series, though note future version of virtual-bus (v4 and above) will be based on this. The first patch will require mainline buy-in, particularly from Davide (cc'd). The last patch is kvm specific. kvm-userspace.git patch to follow. -Greg --- Gregory Haskins (2): kvm: add support for irqfd via eventfd-notification interface eventfd: export fget and signal interfaces for module use arch/x86/kvm/Makefile | 2 - arch/x86/kvm/x86.c | 1 fs/eventfd.c | 3 + include/linux/kvm.h | 7 ++ include/linux/kvm_host.h | 7 ++ virt/kvm/irqfd.c | 146 ++++++++++++++++++++++++++++++++++++++++++++++ virt/kvm/kvm_main.c | 12 ++++ 7 files changed, 177 insertions(+), 1 deletions(-) create mode 100644 virt/kvm/irqfd.c -- Signature