From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mtagate5.de.ibm.com (mtagate5.de.ibm.com [195.212.29.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mtagate5.de.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 4008ADE123 for ; Tue, 3 Jun 2008 22:45:22 +1000 (EST) Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate5.de.ibm.com (8.13.8/8.13.8) with ESMTP id m53CiOLt639122 for ; Tue, 3 Jun 2008 12:44:24 GMT Received: from d12av03.megacenter.de.ibm.com (d12av03.megacenter.de.ibm.com [9.149.165.213]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m53CiO9W3281018 for ; Tue, 3 Jun 2008 14:44:24 +0200 Received: from d12av03.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av03.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m53CiNl7016501 for ; Tue, 3 Jun 2008 14:44:23 +0200 From: Christian Borntraeger To: Linux PPC devel Subject: [RFC 0/3]: hvc_console rework for platform without hard irqs Date: Tue, 3 Jun 2008 14:44:21 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-Id: <200806031444.21945.borntraeger@de.ibm.com> Cc: Virtualization Mailing List , Jeremy Fitzhardinge , Rusty Russell , LKML List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch set if my first attempt to make virtio_console usable on s390. To do so, I had to change hvc_console, because s390 has no request_irq and no free_irq. I want to get feedback from the main users of hvc_console before I proceed. The basic idea of this patch set is to remove the calls to request_irq and free_irq and replace them with backend specific callbacks. Please see the descriptions of the patches for further details: 1/3: hvc_console: rework setup to replace irq functions with callbacks 2/3: virtio_console: use virtqueue notification for hvc_console 3/3: s390: use virtio_console for KVM on s390