From patchwork Tue Mar 23 01:02:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 1456886 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=JuDOVyXU; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4F4CnG1HkXz9snk for ; Tue, 23 Mar 2021 12:04:18 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229632AbhCWBDp (ORCPT ); Mon, 22 Mar 2021 21:03:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230465AbhCWBDe (ORCPT ); Mon, 22 Mar 2021 21:03:34 -0400 Received: from mail-pg1-x52c.google.com (mail-pg1-x52c.google.com [IPv6:2607:f8b0:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B83A1C061574 for ; Mon, 22 Mar 2021 18:03:33 -0700 (PDT) Received: by mail-pg1-x52c.google.com with SMTP id 32so3910058pgm.1 for ; Mon, 22 Mar 2021 18:03:33 -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 :mime-version:content-transfer-encoding; bh=A/SnEbu0v05VvXraZOiAb1e9wcvWFKJdoZf5OUf6Yb0=; b=JuDOVyXU2df0CU3+R6S09KRDtVt/8n4GJK0Ch+5DH5ljnxTiVaS3sdai/S8/zQzkDD S/ovhELE/16rS+8eVkva1wf/zoK7PIBGgCokdzWtOtpe0eecheLJmvzcPboQHT155fQ4 syVRm+RXb+pbaZjR1zC+DPni20iVW2uyH8o+qKlChvamO/vxebQbklnTuFVALfsqy+Cu zr4tlz4DAE4fYc6hBTIq0aWANeo3m/Vjq2xa7xa0N8QkhKqvKWPDFnUURVU6qHVRoHjS BXbiprbmUXW++Q9JDRcNfeCeuwsGUadw2PghxU/OceUoPoshiBy70vJ4HMZZYNIpkdhh uuMw== 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:mime-version:content-transfer-encoding; bh=A/SnEbu0v05VvXraZOiAb1e9wcvWFKJdoZf5OUf6Yb0=; b=GVR9IXYzS8iFpkMEHzC5GN2EFfhRkDbEdZM7e3Ttrmwlfk/TZM8x+tviXJ6vz4EBrF Ap+WRoqwydsRMmH6yK0o90xlFTxlQc8zDRlUvJYyb13EFYGBtWfBybeCBnG0Zq5HbXlr clFzZ3sdXuqcSbWajfYEjJWiMhhZAc7xAUN8DamBFSyNzxd6z+bn8qv+E1xiUpNrbaAX 4dM2cnw4gw7heTxELdpDqjUN2f5zG9lgdOlz6nHjdUbmzPsS3MsNuh2dOqgr0RXH9lOs XRHCsl/jO/O1qw2LPPB5RRz8yY+EqhVwCaRr1ax/mMZ60Qu99hR0D7jIeXAhN+K+cp5Q 7CrQ== X-Gm-Message-State: AOAM530lorUEscwmekV3T1YvAYjuqaZ1m1Vqel2uANd12dPlUjA5P0KH aeD1AqDfoRzz6WBvIzupJD47K7Z88gE= X-Google-Smtp-Source: ABdhPJxqJvrbrlx/7iCJz0s11fRARFxYLUUGvx9PFsEE91s5bQ+/yI9/oWpFx6L+15k1SwL7NpEifw== X-Received: by 2002:a17:902:c9c3:b029:e6:f027:b01e with SMTP id q3-20020a170902c9c3b02900e6f027b01emr818869pld.74.1616461412848; Mon, 22 Mar 2021 18:03:32 -0700 (PDT) Received: from bobo.ibm.com ([58.84.78.96]) by smtp.gmail.com with ESMTPSA id e7sm14491894pfc.88.2021.03.22.18.03.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 18:03:32 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Cc: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org, Fabiano Rosas , Daniel Axtens Subject: [PATCH v4 05/46] KVM: PPC: Book3S HV: Remove redundant mtspr PSPB Date: Tue, 23 Mar 2021 11:02:24 +1000 Message-Id: <20210323010305.1045293-6-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210323010305.1045293-1-npiggin@gmail.com> References: <20210323010305.1045293-1-npiggin@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org This SPR is set to 0 twice when exiting the guest. Suggested-by: Fabiano Rosas Reviewed-by: Daniel Axtens Signed-off-by: Nicholas Piggin Acked-by: Paul Mackerras --- arch/powerpc/kvm/book3s_hv.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 1ffb0902e779..7cfaabab2c20 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3781,7 +3781,6 @@ static int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit, mtspr(SPRN_DSCR, host_dscr); mtspr(SPRN_TIDR, host_tidr); mtspr(SPRN_IAMR, host_iamr); - mtspr(SPRN_PSPB, 0); if (host_amr != vcpu->arch.amr) mtspr(SPRN_AMR, host_amr);