From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754104Ab3ARRbm (ORCPT ); Fri, 18 Jan 2013 12:31:42 -0500 Received: from na01-by2-obe.ptr.protection.outlook.com ([207.46.100.30]:23641 "EHLO na01-by2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751411Ab3ARRbl convert rfc822-to-8bit (ORCPT ); Fri, 18 Jan 2013 12:31:41 -0500 X-Forefront-Antispam-Report-Untrusted: CIP:157.56.240.21;KIP:(null);UIP:(null);(null);H:BL2PRD0310HT002.namprd03.prod.outlook.com;R:internal;EFV:INT X-SpamScore: -1 X-BigFish: PS-1(zz9371I542I1432Izz1ee6h1de0h1202h1e76h1d1ah1d2ahz97hz8275bhz31h2a8h668h839h944hd24hf0ah1220h1288h12a5h12a9h12bdh137ah13b6h1441h1504h1537h153bh162dh1631h1758h9a9j1155h) X-Forefront-Antispam-Report-Untrusted: SFV:SKI;SFS:;DIR:OUT;SFP:;SCL:-1;SRVR:SN2PR03MB064;H:SN2PR03MB061.namprd03.prod.outlook.com;LANG:en; From: KY Srinivasan To: KY Srinivasan , "x86@kernel.org" , "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "devel@linuxdriverproject.org" , "olaf@aepfle.de" , "apw@canonical.com" , "jasowang@redhat.com" , "tglx@linutronix.de" Subject: RE: [PATCH 1/1] Drivers: hv: Bind all vmbbus interrupts to the boot CPU Thread-Topic: [PATCH 1/1] Drivers: hv: Bind all vmbbus interrupts to the boot CPU Thread-Index: AQHN9TUkm+scpn/SoEOWeidLYzPcqJhPVKJw Date: Fri, 18 Jan 2013 17:27:09 +0000 Message-ID: References: <1358485251-13801-1-git-send-email-kys@microsoft.com> In-Reply-To: <1358485251-13801-1-git-send-email-kys@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.255.156.132] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-OrganizationHeadersPreserved: SN2PR03MB064.namprd03.prod.outlook.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%CANONICAL.COM$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%AEPFLE.DE$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%LINUTRONIX.DE$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%REDHAT.COM$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%LINUXFOUNDATION.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%KERNEL.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%LINUXDRIVERPROJECT.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-FOPE-CONNECTOR: Id%59$Dn%VGER.KERNEL.ORG$RO%2$TLS%6$FQDN%131.107.125.5$TlsDn% X-CrossPremisesHeadersPromoted: TK5EX14MLTC102.redmond.corp.microsoft.com X-CrossPremisesHeadersFiltered: TK5EX14MLTC102.redmond.corp.microsoft.com X-Forefront-Antispam-Report: CIP:131.107.125.37;CTRY:US;IPV:CAL;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(13464002)(51704002)(377454001)(1511001)(47736001)(47776002)(16676001)(51856001)(74662001)(31966008)(44976002)(49866001)(50466001)(4396001)(47976001)(50986001)(6806001)(77982001)(59766001)(56816002)(56776001)(5343635001)(46406002)(74502001)(33646001)(76482001)(23726001)(46102001)(54316002)(79102001)(54356001)(53806001)(47446002)(24736002)(550254004);DIR:OUT;SFP:;SCL:1;SRVR:BL2FFO11HUB019;H:TK5EX14MLTC102.redmond.corp.microsoft.com;LANG:en; X-OriginatorOrg: microsoft.onmicrosoft.com X-Forefront-PRVS: 0730093765 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > -----Original Message----- > From: K. Y. Srinivasan [mailto:kys@microsoft.com] > Sent: Friday, January 18, 2013 12:01 AM > To: x86@kernel.org; gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org; > devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com; > jasowang@redhat.com; tglx@linutronix.de > Cc: KY Srinivasan > Subject: [PATCH 1/1] Drivers: hv: Bind all vmbbus interrupts to the boot CPU > > The default interrupt delivery model in Linux does not support the Hyper-V > vmbus delivery model when the guest is configured with multiple VCPUs. I have > sent a patch to address this - delivering the vmbus interrupt on a separate > IDT vector. Until this patch is applied, bind all vmbus interrupts to the boot > CPU. > > Signed-off-by: K. Y. Srinivasan > --- > drivers/hv/channel_mgmt.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c > index c80fe62..7478ef9 100644 > --- a/drivers/hv/channel_mgmt.c > +++ b/drivers/hv/channel_mgmt.c > @@ -337,7 +337,7 @@ static u32 get_vp_index(uuid_le *type_guid) > return 0; > } > cur_cpu = (++next_vp % max_cpus); > - return hv_context.vp_index[cur_cpu]; > + return 0; > } Greg, Please apply this patch. This temporary restriction will be removed once the Hyper-V IDT Patch (or some variant of that) is applied. Regards, K. Y > > /* > -- > 1.7.4.1 > >