From patchwork Wed May 23 07:01:49 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Guo X-Patchwork-Id: 918841 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40rQ800JxRz9s2L for ; Wed, 23 May 2018 18:06:24 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Nmt6t26s"; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 40rQ7z5vknzDqGQ for ; Wed, 23 May 2018 18:06:23 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Nmt6t26s"; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:400e:c00::243; helo=mail-pf0-x243.google.com; envelope-from=wei.guo.simon@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Nmt6t26s"; dkim-atps=neutral Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com [IPv6:2607:f8b0:400e:c00::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 40rPkC48HzzF0Vv for ; Wed, 23 May 2018 17:47:31 +1000 (AEST) Received: by mail-pf0-x243.google.com with SMTP id f189-v6so10081878pfa.7 for ; Wed, 23 May 2018 00:47:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=SX6A/ANM61CmnWS7fCllOmJoEH0GI+5OFtaFX6UIXiM=; b=Nmt6t26snO15T3h8bQWmJ7P5GAc7n0d6gsIh7E6RK+j4IlXapeB9S86bmPxJuukrkk GRzKK7lFH5Ax/wK31jY6oqdSskQjwwL98jUkH+oJYYxaLTg0I6h9PTNPl5BgiigZdwaz DFGwW9hHDZa6QEEFSnmZXlZMYH7PO/BNOn7/bUnp5gEo/mTg+R3VJe05daF6w7a1G/5f fZuZ2piai7TYdTVnIGOysiXF6bLj2DwpLTExBvqv0zO6AwASevWJlPOJbx01KORpXOke Q0023lM6g8Ow8R+iMYpjvesUmwuwb84soi6ckou1jrrw1HAmhbxtzLIoU3yzMcEEe9QQ c8Zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=SX6A/ANM61CmnWS7fCllOmJoEH0GI+5OFtaFX6UIXiM=; b=FDWp7sfbDxnbRmEN2Gaajto9wjw52DNJt/8ZzH6o2taMJn4cbX/zhNqKpziQUvt0Or AIK2n+O/KWzx5H10XnmLTlUCSGjjEdrMJrGLGiEHIAylsLbBHD78Od+NIMxppYnoV9pM TNe38BXSts3OoVvAXnjCzXxzSQzkCGvdt16YzO/jRnPIGjzJ048oWaFX+YY+g+xfXsni kedP6nBA0FEh8lDV43hZi/pVHbxLvdRJAfEY+mruWC7d4pb6se7mNYl0F4sWBfvsu7G+ NiXJBeBPk4rAey72/sZ/P/ureUg4QGAfl4SkukwQO1jujEikYFLsTz9H4ZL3Nb/BEr6E f79A== X-Gm-Message-State: ALKqPwfzGDqLWrSZvQmFGY59QIDRnf9Li81gJ6l2dCIMETIIWCv9Lr3U k7CsEviHl0xT2ErzaBxBDOLCuA== X-Google-Smtp-Source: AB8JxZqF0rskKNvr1SUARro7EGOwdcP6uHMZ3hrdye2rz004kKKrj8mZj1xIKtsrP3p8I50sU2S+Iw== X-Received: by 2002:a62:3889:: with SMTP id f131-v6mr1790513pfa.173.1527061649584; Wed, 23 May 2018 00:47:29 -0700 (PDT) Received: from simonLocalRHEL7.cn.ibm.com ([112.73.0.89]) by smtp.gmail.com with ESMTPSA id a4-v6sm39079171pfj.19.2018.05.23.00.47.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 May 2018 00:47:29 -0700 (PDT) From: wei.guo.simon@gmail.com To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 06/29] KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm() Date: Wed, 23 May 2018 15:01:49 +0800 Message-Id: <1527058932-7434-7-git-send-email-wei.guo.simon@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1527058932-7434-1-git-send-email-wei.guo.simon@gmail.com> References: <1527058932-7434-1-git-send-email-wei.guo.simon@gmail.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Simon Guo , kvm-ppc@vger.kernel.org, kvm@vger.kernel.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Simon Guo kvmppc_save_tm() invokes store_fp_state/store_vr_state(). So it is mandatory to turn on FP/VSX/VMX MSR bits for its execution, just like what kvmppc_restore_tm() did. Previsouly HV KVM has turned the bits on outside of function kvmppc_save_tm(). Now we include this bit change in kvmppc_save_tm() so that the logic is more clean. And PR KVM can reuse it later. Signed-off-by: Simon Guo Reviewed-by: Paul Mackerras --- arch/powerpc/kvm/tm.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/kvm/tm.S b/arch/powerpc/kvm/tm.S index cbe608a..b7057d5 100644 --- a/arch/powerpc/kvm/tm.S +++ b/arch/powerpc/kvm/tm.S @@ -42,6 +42,8 @@ _GLOBAL(kvmppc_save_tm) mfmsr r8 li r0, 1 rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG + ori r8, r8, MSR_FP + oris r8, r8, (MSR_VEC | MSR_VSX)@h mtmsrd r8 rldicl. r4, r4, 64 - MSR_TS_S_LG, 62