From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH] arm64: KVM: Enable minimalistic support for Thunder Date: Mon, 29 Jun 2015 18:11:13 +0100 Message-ID: <55917C31.4060107@arm.com> References: <1435348284-32132-1-git-send-email-tchalamarla@caviumnetworks.com> <55910794.6000107@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 00EE456A16 for ; Mon, 29 Jun 2015 13:00:08 -0400 (EDT) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FlcuHhDg-A0o for ; Mon, 29 Jun 2015 13:00:06 -0400 (EDT) Received: from foss.arm.com (foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C14FE56A12 for ; Mon, 29 Jun 2015 13:00:06 -0400 (EDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: "Chalamarla, Tirumalesh" Cc: Andre Przywara , Will Deacon , "linux-kernel@vger.kernel.org" , "rrichter@cavium.com" , "kvmarm@lists.cs.columbia.edu" , "linux-arm-kernel@lists.infradead.org" List-Id: kvmarm@lists.cs.columbia.edu On 29/06/15 18:06, Chalamarla, Tirumalesh wrote: > >> On Jun 29, 2015, at 1:53 AM, Marc Zyngier wrote: >> >> On 26/06/15 20:51, Tirumalesh Chalamarla wrote: >>> In order to allow KVM to run on Thunder implementations, add the >>> minimal support required. >>> >>> Signed-off-by: Tirumalesh Chalamarla >> >> CCing the KVM/ARM maintainers should be the first course of action. >> > thanks. > >> Also, you may want to try Suzuki's patch instead: >> >> http://www.spinics.net/lists/kvm/msg117703.html >> > will try with this. > >> Constantly adding new CPUs without providing any insight as to how they >> should be emulated only brings churn, and not much benefit. >> > we are not planning(at this point) to emulate Thunder with QEMU/others. Fair enough. If cross-cpu VM migration is none of your concern, then Suzuki's patch should be enough. Thanks, M. -- Jazz is not dead. It just smells funny... From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Mon, 29 Jun 2015 18:11:13 +0100 Subject: [PATCH] arm64: KVM: Enable minimalistic support for Thunder In-Reply-To: References: <1435348284-32132-1-git-send-email-tchalamarla@caviumnetworks.com> <55910794.6000107@arm.com> Message-ID: <55917C31.4060107@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 29/06/15 18:06, Chalamarla, Tirumalesh wrote: > >> On Jun 29, 2015, at 1:53 AM, Marc Zyngier wrote: >> >> On 26/06/15 20:51, Tirumalesh Chalamarla wrote: >>> In order to allow KVM to run on Thunder implementations, add the >>> minimal support required. >>> >>> Signed-off-by: Tirumalesh Chalamarla >> >> CCing the KVM/ARM maintainers should be the first course of action. >> > thanks. > >> Also, you may want to try Suzuki's patch instead: >> >> http://www.spinics.net/lists/kvm/msg117703.html >> > will try with this. > >> Constantly adding new CPUs without providing any insight as to how they >> should be emulated only brings churn, and not much benefit. >> > we are not planning(at this point) to emulate Thunder with QEMU/others. Fair enough. If cross-cpu VM migration is none of your concern, then Suzuki's patch should be enough. Thanks, M. -- Jazz is not dead. It just smells funny... From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753258AbbF2RLZ (ORCPT ); Mon, 29 Jun 2015 13:11:25 -0400 Received: from foss.arm.com ([217.140.101.70]:38879 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753177AbbF2RLS (ORCPT ); Mon, 29 Jun 2015 13:11:18 -0400 Message-ID: <55917C31.4060107@arm.com> Date: Mon, 29 Jun 2015 18:11:13 +0100 From: Marc Zyngier Organization: ARM Ltd User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0 MIME-Version: 1.0 To: "Chalamarla, Tirumalesh" CC: "kvmarm@lists.cs.columbia.edu" , Andre Przywara , Will Deacon , "linux-kernel@vger.kernel.org" , "rrichter@cavium.com" , "linux-arm-kernel@lists.infradead.org" , Christoffer Dall , Suzuki Poulose Subject: Re: [PATCH] arm64: KVM: Enable minimalistic support for Thunder References: <1435348284-32132-1-git-send-email-tchalamarla@caviumnetworks.com> <55910794.6000107@arm.com> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/06/15 18:06, Chalamarla, Tirumalesh wrote: > >> On Jun 29, 2015, at 1:53 AM, Marc Zyngier wrote: >> >> On 26/06/15 20:51, Tirumalesh Chalamarla wrote: >>> In order to allow KVM to run on Thunder implementations, add the >>> minimal support required. >>> >>> Signed-off-by: Tirumalesh Chalamarla >> >> CCing the KVM/ARM maintainers should be the first course of action. >> > thanks. > >> Also, you may want to try Suzuki's patch instead: >> >> http://www.spinics.net/lists/kvm/msg117703.html >> > will try with this. > >> Constantly adding new CPUs without providing any insight as to how they >> should be emulated only brings churn, and not much benefit. >> > we are not planning(at this point) to emulate Thunder with QEMU/others. Fair enough. If cross-cpu VM migration is none of your concern, then Suzuki's patch should be enough. Thanks, M. -- Jazz is not dead. It just smells funny...