From patchwork Mon Jul 26 03:50:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 1509757 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=q0zvUm3T; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4GY5bv225Zz9t6h for ; Mon, 26 Jul 2021 13:52:43 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231747AbhGZDMN (ORCPT ); Sun, 25 Jul 2021 23:12:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231738AbhGZDML (ORCPT ); Sun, 25 Jul 2021 23:12:11 -0400 Received: from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com [IPv6:2607:f8b0:4864:20::1029]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 759A4C061757 for ; Sun, 25 Jul 2021 20:52:40 -0700 (PDT) Received: by mail-pj1-x1029.google.com with SMTP id o44-20020a17090a0a2fb0290176ca3e5a2fso5069958pjo.1 for ; Sun, 25 Jul 2021 20:52:40 -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=uA8TbX3pYs2LbKbx2AqpBXWdMPxg/1XwQyLtHZ8k4pk=; b=q0zvUm3TdOgPeQLfr9sl7pSpHI3OiRrMO74Sa2ndO/muk12RQUeSUujFdcIE80IV7P F4gtTODUo9IguULkuthSrvAqvksQeHi9a2ud4K1wl9wPv5e31dnvzLQznN0gbEBWpZ4y 8AZouMK2qFnGJkyFIeh/6kl3o8Z280aQ5Xx/burOJgp09wXcF/l4LnnVvK/dbXa6kB2B yMyxrW3DQjrEv6eybQeFtlsL83USLO/9JJRVpcH68YkMUm3HCSGT5phXnxq8t9ApUgRO /yJSOpFbSBYNQjTv2IwpcT20cz7LwuvTjrwSKf0r1NApVreyV0AYUk7F5nPiDnAR5y0q I5Hg== 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=uA8TbX3pYs2LbKbx2AqpBXWdMPxg/1XwQyLtHZ8k4pk=; b=WKntqklP1Sg5bmX+i+iAnRyFOi7GhnAKDs1r1Bz1+KRJyWVRInYqN4+gjeZt65glAM ttwpqiRhaRN1IzY1N3OlXIfPFNEgm84vpU6aDVsxPrGjU+etrCCSeAEkkZYx6+s0Msm3 LQo7Nhmj07S8HqeMjq/67ME6GZPwSk9h9i5WfgQdgOeOD4gJTPuDg3MoMM9XXOcgft4w UORiTlLFgB1XFv7q9kSUCeuq+2XuYQg9yJnOcffAOsgli2oy73J11n8BlHqx8Q0Rqv6u S/cbKuoz+a7DuTbq/nZneVNfQ3ndWQpKbEnVKIe+QXhFVodUJzzNEu+ge/Tlzs0EBp5N sy1Q== X-Gm-Message-State: AOAM533Img/sXcBX3sJ0vHdc/28E/dBSOyqcf7LjZXMOLVZI9vc0T5JY JJlpT/xqzRGFtEngQs7Gy4Q4Rn+WY/4= X-Google-Smtp-Source: ABdhPJyDzzba2kzswPB+YgoKplhqURknNv8gSWMDKpLSXONGI2J1wXWOnb44s6R5WiFC76hLE8jz6Q== X-Received: by 2002:a63:f712:: with SMTP id x18mr16448939pgh.389.1627271559976; Sun, 25 Jul 2021 20:52:39 -0700 (PDT) Received: from bobo.ibm.com (220-244-190-123.tpgi.com.au. [220.244.190.123]) by smtp.gmail.com with ESMTPSA id p33sm41140341pfw.40.2021.07.25.20.52.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Jul 2021 20:52:39 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Cc: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH v1 50/55] KVM: PPC: Book3S HV P9: Add unlikely annotation for !mmu_ready Date: Mon, 26 Jul 2021 13:50:31 +1000 Message-Id: <20210726035036.739609-51-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210726035036.739609-1-npiggin@gmail.com> References: <20210726035036.739609-1-npiggin@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org The mmu will almost always be ready. Signed-off-by: Nicholas Piggin --- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index ee4e38cf5df4..2bd000e2c269 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4376,7 +4376,7 @@ int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit, vc->runner = vcpu; /* See if the MMU is ready to go */ - if (!kvm->arch.mmu_ready) { + if (unlikely(!kvm->arch.mmu_ready)) { r = kvmhv_setup_mmu(vcpu); if (r) { run->exit_reason = KVM_EXIT_FAIL_ENTRY;