From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755466Ab3AXTAG (ORCPT ); Thu, 24 Jan 2013 14:00:06 -0500 Received: from mo-p00-ob.rzone.de ([81.169.146.161]:60813 "EHLO mo-p00-ob.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755179Ab3AXTAC (ORCPT ); Thu, 24 Jan 2013 14:00:02 -0500 X-RZG-AUTH: :P2EQZWCpfu+qG7CngxMFH1J+zrwiavkK6tmQaLfmwtM48/ll3c7qES2M X-RZG-CLASS-ID: mo00 Date: Thu, 24 Jan 2013 19:59:43 +0100 From: Olaf Hering To: KY Srinivasan Cc: Jan Beulich , "bp@alien8.de" , "apw@canonical.com" , "x86@kernel.org" , "tglx@linutronix.de" , "devel@linuxdriverproject.org" , "gregkh@linuxfoundation.org" , "jasowang@redhat.com" , "linux-kernel@vger.kernel.org" , "hpa@zytor.com" Subject: Re: [PATCH RESEND 1/1] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts Message-ID: <20130124185943.GA19194@aepfle.de> References: <1358990259-22551-1-git-send-email-kys@microsoft.com> <5101035D02000078000B8FFD@nat28.tlf.novell.com> <27092660926e4d3f80394697cc0dc858@SN2PR03MB061.namprd03.prod.outlook.com> <51016C3202000078000B943E@nat28.tlf.novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21.rev5632 (2013-01-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 24, KY Srinivasan wrote: > > Question is - considering you stated that this is supported > > starting in Win8, doesn't Hyper-V itself announce that > > capability in some explicit way? > > Thanks Jan. Unfortunately I don't think tis interrupt delivery model > is specified via a "feature" bit (I will check with the Windows guys). > Perhaps, we can have a Hyper-V specific compilation switch to address > the Xen emulation issue. Would that really help if both pvops XEN_PVHVM and HYPERV are enabled in the config? I assume at this point the access to the DMI data is not yet possible. Olaf