From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: [Qemu-ppc] [RFC PATCH 12/17] PowerPC: booke64: Add DO_KVM kernel hooks Date: Thu, 12 Jul 2012 08:28:00 +1000 Message-ID: <1342045680.18850.39.camel@pasglop> References: <1340627195-11544-1-git-send-email-mihai.caraman@freescale.com> <1340627195-11544-13-git-send-email-mihai.caraman@freescale.com> <1B2CBB56-7180-4A73-8E51-6538A725F710@suse.de> <1341440735.16808.42.camel@pasglop> <300B73AA675FCE4A93EB4FC1D42459FF15CDE6@039-SN2MPN1-013.039d.mgd.msft.net> ,<7305F50A-8E77-4E88-8EB8-4046A7E94DF9@suse.de> <300B73AA675FCE4A93EB4FC1D42459FF15CF83@039-SN2MPN1-013.039d.mgd.msft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Caraman Mihai Claudiu-B02008 , "" , KVM list , linuxppc-dev , "qemu-ppc@nongnu.org List" To: Alexander Graf Return-path: In-Reply-To: Sender: kvm-ppc-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On Thu, 2012-07-12 at 00:25 +0200, Alexander Graf wrote: > Or just free up another register early on, like here. If you're going to do that, you want to measure the impact on null syscall performance though. Cheers, Ben. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7E9B72C0089 for ; Thu, 12 Jul 2012 08:28:13 +1000 (EST) Message-ID: <1342045680.18850.39.camel@pasglop> Subject: Re: [Qemu-ppc] [RFC PATCH 12/17] PowerPC: booke64: Add DO_KVM kernel hooks From: Benjamin Herrenschmidt To: Alexander Graf Date: Thu, 12 Jul 2012 08:28:00 +1000 In-Reply-To: References: <1340627195-11544-1-git-send-email-mihai.caraman@freescale.com> <1340627195-11544-13-git-send-email-mihai.caraman@freescale.com> <1B2CBB56-7180-4A73-8E51-6538A725F710@suse.de> <1341440735.16808.42.camel@pasglop> <300B73AA675FCE4A93EB4FC1D42459FF15CDE6@039-SN2MPN1-013.039d.mgd.msft.net> ,<7305F50A-8E77-4E88-8EB8-4046A7E94DF9@suse.de> <300B73AA675FCE4A93EB4FC1D42459FF15CF83@039-SN2MPN1-013.039d.mgd.msft.net> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: "qemu-ppc@nongnu.org List" , Caraman Mihai Claudiu-B02008 , linuxppc-dev , KVM list , "" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2012-07-12 at 00:25 +0200, Alexander Graf wrote: > Or just free up another register early on, like here. If you're going to do that, you want to measure the impact on null syscall performance though. Cheers, Ben. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Date: Wed, 11 Jul 2012 22:28:00 +0000 Subject: Re: [Qemu-ppc] [RFC PATCH 12/17] PowerPC: booke64: Add DO_KVM kernel hooks Message-Id: <1342045680.18850.39.camel@pasglop> List-Id: References: <1340627195-11544-1-git-send-email-mihai.caraman@freescale.com> <1340627195-11544-13-git-send-email-mihai.caraman@freescale.com> <1B2CBB56-7180-4A73-8E51-6538A725F710@suse.de> <1341440735.16808.42.camel@pasglop> <300B73AA675FCE4A93EB4FC1D42459FF15CDE6@039-SN2MPN1-013.039d.mgd.msft.net> ,<7305F50A-8E77-4E88-8EB8-4046A7E94DF9@suse.de> <300B73AA675FCE4A93EB4FC1D42459FF15CF83@039-SN2MPN1-013.039d.mgd.msft.net> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Alexander Graf Cc: Caraman Mihai Claudiu-B02008 , "" , KVM list , linuxppc-dev , "qemu-ppc@nongnu.org List" On Thu, 2012-07-12 at 00:25 +0200, Alexander Graf wrote: > Or just free up another register early on, like here. If you're going to do that, you want to measure the impact on null syscall performance though. Cheers, Ben.