From patchwork Mon May 21 04:09:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Guo X-Patchwork-Id: 917372 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 40q6BR5BC2z9s0y for ; Mon, 21 May 2018 15:03:59 +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="pC8C8d7q"; 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 40q6BR37WLzF0dl for ; Mon, 21 May 2018 15:03:59 +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="pC8C8d7q"; 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:c01::243; helo=mail-pl0-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="pC8C8d7q"; dkim-atps=neutral Received: from mail-pl0-x243.google.com (mail-pl0-x243.google.com [IPv6:2607:f8b0:400e:c01::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 40q5nL08rJzF0dT for ; Mon, 21 May 2018 14:45:41 +1000 (AEST) Received: by mail-pl0-x243.google.com with SMTP id e6-v6so8031795plt.11 for ; Sun, 20 May 2018 21:45:41 -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=pC8C8d7qsTLkwzKI0lMdG/Wiur2owQcSTRTfGBTx74fn7/xaP+Pfq0VkmaMLv08OYm jTlDu6Go1Dep2LUD3ABexUA7BRdC4/LLLbgEfWQNamrAxz464Rost38+8B9yNrR5xcZc By7DlIzjl8PgA/wYrrl6rqliZfFJuleFGl0E6Mc4Gzck5YQrHH8O2cuWeYzp2bfFJNHT 4AaBtib5EoICVwSqWrNV1pkbkEkkEd3FW0UBdHRK1atzm8NDzV7xmMtmJzVPHTpMcEHy 8h8loL6KE6rLyCuyaXtxuHQnCQKmAEJ8hMN52ExQ42glJGmUeLfterZnHuB/z3fpG2LN tuqg== 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=oO0L7EI8Gy6BdXFjo2o4l8IwCdgT67fmcUPe64kNVY7CNccgmqET3g+jxvESY9zsDL EPWfUpULBim/2XCepIBuWb3gDZkKx5qi8Ocwuen1TRw+yLEOUGXJVnjh5quy0QewNgqy CdMtSFkjBOztNYyjAsPTIN7nUzk0M06yTwTdkW6xcd4SeLQHPF+YY7jXyDDhpy0SaEqF KC5YQX2kaL5fyLcUQOyOrGHBPFu1IqVAqOqiB03Zp2EP9SGO06rOdcx4gH2YWk4BP6oT xujeuSId5yrQhoL6DMBbkHj/FQ24uTZsA26M/xGdf4WL5Qtkrqsh/ien0KNbzFmj4jGY pomQ== X-Gm-Message-State: ALKqPweAi9y0Fl1+E+T0ovWHu3eZ1eFdZucPf/C8oOHxmPM3aW5fBPi4 wvOSf/pwu0lLzo5hekgP/V1dNw== X-Google-Smtp-Source: AB8JxZoxzZVoZnZwNFAK0L5x7b/mClN/byooSvvEE45mLTTD+qPmHXSYy+up6/iBO7dkzv4JqLjk0g== X-Received: by 2002:a17:902:ba93:: with SMTP id k19-v6mr18411923pls.379.1526877939457; Sun, 20 May 2018 21:45:39 -0700 (PDT) Received: from simonLocalRHEL7.cn.ibm.com ([112.73.0.89]) by smtp.gmail.com with ESMTPSA id t14-v6sm24575514pfa.31.2018.05.20.21.45.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 20 May 2018 21:45:38 -0700 (PDT) From: wei.guo.simon@gmail.com To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 06/29] KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm() Date: Mon, 21 May 2018 12:09:23 +0800 Message-Id: <1526875786-10372-7-git-send-email-wei.guo.simon@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1526875786-10372-1-git-send-email-wei.guo.simon@gmail.com> References: <1526875786-10372-1-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