Message ID | 20210715131518.146917-2-npiggin@gmail.com (mailing list archive) |
---|---|
State | RFC |
Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=NG2gZrOR; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4GQZd96WS6z9tD3 for <patchwork-incoming@ozlabs.org>; Thu, 15 Jul 2021 23:16:13 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GQZd95MRBz3bYP for <patchwork-incoming@ozlabs.org>; Thu, 15 Jul 2021 23:16:13 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=NG2gZrOR; 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 (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::532; helo=mail-pg1-x532.google.com; envelope-from=npiggin@gmail.com; receiver=<UNKNOWN>) Authentication-Results: lists.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=NG2gZrOR; dkim-atps=neutral Received: from mail-pg1-x532.google.com (mail-pg1-x532.google.com [IPv6:2607:f8b0:4864:20::532]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4GQZcL0pzTz2yMD for <linuxppc-dev@lists.ozlabs.org>; Thu, 15 Jul 2021 23:15:29 +1000 (AEST) Received: by mail-pg1-x532.google.com with SMTP id k20so6230800pgg.7 for <linuxppc-dev@lists.ozlabs.org>; Thu, 15 Jul 2021 06:15:29 -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=Dg+kECwAuBShufULtVDvhwFWlxHBpA5vuIilKUWCHKw=; b=NG2gZrORvpOx1ukjrrzSAx3vIGo65+AokhbSqsqCW+ATo/Fc3r3a8483nr08C+CKNm T4heEkQjD+3daIkQKXPGMMSFXPdBy/aIfzuBbeKRg2h9bRzXKe1zGJNSWL3Mne/fEEBu HApJ0QcRVqS9vf52yr2VJrTsJChSvAh1wFwRt6BYBN8EoqjEAWfEiCFU7/TkZT6UgCR/ xaAcjH7QATyIohzEZKdM1arlHoh3CKrCiNr32iEf+j/a4khT6qgfp/nHv/IE+ZTdVGc0 FGOx+Y8ryfIlrSpkYm0/1l9SVORCAxxhe9rRPUNc8LyPaRj8sdFV8G8qFdSMuTxFLxGf IEyw== 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=Dg+kECwAuBShufULtVDvhwFWlxHBpA5vuIilKUWCHKw=; b=gU4bts01NHf6Qx5OYpCTAXKaz+Jguw6DWQEUeQiARr40OulwbLgzqNCmzYw+sjoRj3 8lf86tTLDNRWtyZ/mE5YdnA/YcorAlAacN+5mUkgbe8eMcJrppSmFXI1Psn4624eW4cW yFnhI844KKq0AVXh5tgbxbqCOc/OohuPOrBh9OmHySRqcQQiaU3Rj/noZvpfgqokB2b+ kBl7GMtp4IRVADN0BIlelmU319gUHQ+wdxjpq8gLxbI2+a1KF2P5K/hIdOWj9x3ComZW 5C0U/He1BaS9MlU32OzeJt/HhpDhnY1xueEbq6/fXNZ7hPAHQdS8xIAvk4ibvUEjuYdx 7QtQ== X-Gm-Message-State: AOAM533E39LZWsaFxixXBC98mftiVJFJBrIj5hm6iqTkj04C8visU5T3 X+xQwpx3XDE9ny5lq5j2CoBoeHRZwkDpvw== X-Google-Smtp-Source: ABdhPJwTuWAXRw7sa81YbVR8I3Tp1EmxpLH90UEDYGKD0GbKrm+IKtLnyiBgmLCRrYOaPmHlNwVg6g== X-Received: by 2002:a05:6a00:1713:b029:332:7eca:41a1 with SMTP id h19-20020a056a001713b02903327eca41a1mr4694625pfc.26.1626354927624; Thu, 15 Jul 2021 06:15:27 -0700 (PDT) Received: from bobo.ozlabs.ibm.com (27-33-83-114.tpgi.com.au. [27.33.83.114]) by smtp.gmail.com with ESMTPSA id k6sm4864216pju.8.2021.07.15.06.15.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Jul 2021 06:15:27 -0700 (PDT) From: Nicholas Piggin <npiggin@gmail.com> To: kvm-ppc@vger.kernel.org Subject: [RFC PATCH 1/6] KVM: PPC: Book3S HV P9: Add unlikely annotation for !mmu_ready Date: Thu, 15 Jul 2021 23:15:13 +1000 Message-Id: <20210715131518.146917-2-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210715131518.146917-1-npiggin@gmail.com> References: <20210715131518.146917-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin <npiggin@gmail.com> Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> |
Series |
KVM: PPC: Book3S HV P9: Reduce guest entry/exit
|
expand
|
Related | show |
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 9d15bbafe333..27a7a856eed1 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4367,7 +4367,7 @@ 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;
The mmu will almost always be ready. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)