Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757512Ab1FVLlz (ORCPT ); Wed, 22 Jun 2011 07:41:55 -0400 Received: from va3ehsobe005.messaging.microsoft.com ([216.32.180.31]:43985 "EHLO VA3EHSOBE005.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757320Ab1FVLlx convert rfc822-to-8bit (ORCPT ); Wed, 22 Jun 2011 07:41:53 -0400 X-SpamScore: -14 X-BigFish: VS-14(zz9371M1432N98dKzz1202hzz8275bhz2dh2a8h668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPVD:NLI;H:mail.freescale.net;RD:none;EFVD:NLI Subject: Re: [PATCH 3/7] powerpc: introduce the ePAPR embedded hypervisor vmpic driver MIME-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset="us-ascii" From: Kumar Gala In-Reply-To: <1305813272-31826-4-git-send-email-timur@freescale.com> Date: Wed, 22 Jun 2011 06:41:41 -0500 CC: , , , , , Content-Transfer-Encoding: 8BIT Message-ID: <735A6D65-99B3-40BE-A842-F37D8D7D5D5B@freescale.com> References: <1305813272-31826-1-git-send-email-timur@freescale.com> <1305813272-31826-4-git-send-email-timur@freescale.com> To: Timur Tabi X-Mailer: Apple Mail (2.1084) X-OriginatorOrg: freescale.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1614 Lines: 40 On May 19, 2011, at 8:54 AM, Timur Tabi wrote: > From: Ashish Kalra > > The Freescale ePAPR reference hypervisor provides interrupt controller services > via a hypercall interface, instead of emulating the MPIC controller. This is > called the VMPIC. > > The ePAPR "virtual interrupt controller" provides interrupt controller services > for external interrupts. External interrupts received by a partition can come > from two sources: > > - Hardware interrupts - hardware interrupts come from external > interrupt lines or on-chip I/O devices. > - Virtual interrupts - virtual interrupts are generated by the hypervisor > as part of some hypervisor service or hypervisor-created virtual device. > > Both types of interrupts are processed using the same programming model and > same set of hypercalls. > > Signed-off-by: Ashish Kalra > Signed-off-by: Timur Tabi > --- > arch/powerpc/include/asm/ehv_pic.h | 40 +++++ > arch/powerpc/platforms/Kconfig | 4 + > arch/powerpc/sysdev/Makefile | 1 + > arch/powerpc/sysdev/ehv_pic.c | 302 ++++++++++++++++++++++++++++++++++++ > 4 files changed, 347 insertions(+), 0 deletions(-) > create mode 100644 arch/powerpc/include/asm/ehv_pic.h > create mode 100644 arch/powerpc/sysdev/ehv_pic.c applied to next - k -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/