From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mario Smarduch Subject: 32-bit fp/simd race Date: Wed, 17 Jun 2015 19:56:20 -0700 Message-ID: <55823354.1040207@samsung.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 9039F55F0D for ; Wed, 17 Jun 2015 22:45:49 -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 2tpqqYmKosZY for ; Wed, 17 Jun 2015 22:45:47 -0400 (EDT) Received: from usmailout4.samsung.com (mailout4.w2.samsung.com [211.189.100.14]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id CE96855EE0 for ; Wed, 17 Jun 2015 22:45:47 -0400 (EDT) Received: from uscpsbgex1.samsung.com (u122.gpu85.samsung.co.kr [203.254.195.122]) by usmailout4.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NQ400LPKDI2PY30@usmailout4.samsung.com> for kvmarm@lists.cs.columbia.edu; Wed, 17 Jun 2015 22:56:26 -0400 (EDT) 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: "kvmarm@lists.cs.columbia.edu" , "christoffer.dall@linaro.org" , Marc Zyngier , "kvm@vger.kernel.org" List-Id: kvmarm@lists.cs.columbia.edu Maybe I've been looking at this code too long, but it appears that on __kvm_vcpu_return we save/restore fp/simd registers and then change to hyp role. In between if we get an interrupt vCPU may be migrated to another CPU? Or am I missing something? Thanks, - Mario