From patchwork Thu Apr 15 22:20:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 12206183 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90DE1C433B4 for ; Thu, 15 Apr 2021 22:21:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B625610FC for ; Thu, 15 Apr 2021 22:21:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236712AbhDOWVl (ORCPT ); Thu, 15 Apr 2021 18:21:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236304AbhDOWVk (ORCPT ); Thu, 15 Apr 2021 18:21:40 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5902C061574 for ; Thu, 15 Apr 2021 15:21:16 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id w9so3970423ybw.7 for ; Thu, 15 Apr 2021 15:21:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=2rHkFHcKdsKtPlphUZSPjmFsPrJ5FQMml9mM0e4W7Zc=; b=Sdv8k1IdZLOeBzPcIHjmgwJvr30lVQhykx0hvcsxfUl49I6CdmrwLkVbh3hV+Ki+lU 9FgNVGTL6AhKmBPLLJsOtFvFnVAmd9es66AmtmX93zsZySZKpzLCQcstWKqR18p9xu1V A4SAYuvwFCZj+IFvJs55MwqCJ3rSkkS8OincKBNAMhgM9zYj7ywd9/eNQQk8yr2ATmah fXun1sJdo3rL8im+W9tt+twTRmtH/ASLsnxpA84IpCEoOfjOfsRXmg8gMsxVBKugvghq /EQcpFNjuzdNG9gjvw1gOUYvKGfYWCL1jr88Kg0XSNlF0/0+spGD+TtUWO2AwUlYXQst i2TQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=2rHkFHcKdsKtPlphUZSPjmFsPrJ5FQMml9mM0e4W7Zc=; b=Lkb+qO2qVdTFDDx3+avuF5WON5aLBBZiyEtFI/0x7oFd4yRaJsknl7iQ4HvRyfcckJ wcaWTurBBaV9KazHusxkZNHlggplDMq2SE3HbuRVyLnhAeDHNn1xGTwXv73NWWdv4x7Y UwRdugQL3bQBk0u3/F9gx9zP5Ky1uvXDsAsg1r5+zF2cpQ05TuMHODA85JksD1D/VZDu tlVBXCRfAQ1v5XriNBTOYUO++IgRC7qSWYL1USxFVlais5iQdjRBtjQZvToFYOgbcinh ssdZDV3bPNgoREP32KnrNlA7VNEMNbcBIJl03t8mboRyT72U1Qgg8qw+rmwYTe+b4V2t u+yA== X-Gm-Message-State: AOAM533HRGgaGSaCXfNOWq36JqHYDM/PczJvT7G7rxDBj2ZmM7hRglG0 l0Szg8Hf5gz9hyDf9GDw0yO38ymxegw= X-Google-Smtp-Source: ABdhPJxt/mukU9KkDXUa7r3vWCK3xUAeHdvtmdgfysot73ik6ImSoiiXCJDED9AESLevjYuAltjuZtEJn5U= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:f:10:6c93:ada0:6bbf:e7db]) (user=seanjc job=sendgmr) by 2002:a25:e6c7:: with SMTP id d190mr6937056ybh.394.1618525275978; Thu, 15 Apr 2021 15:21:15 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 15 Apr 2021 15:20:58 -0700 In-Reply-To: <20210415222106.1643837-1-seanjc@google.com> Message-Id: <20210415222106.1643837-2-seanjc@google.com> Mime-Version: 1.0 References: <20210415222106.1643837-1-seanjc@google.com> X-Mailer: git-send-email 2.31.1.368.gbe11c130af-goog Subject: [PATCH v3 1/9] context_tracking: Move guest exit context tracking to separate helpers From: Sean Christopherson To: Paolo Bonzini Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Gleixner , Michael Tokarev , Christian Borntraeger Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Wanpeng Li Provide separate context tracking helpers for guest exit, the standalone helpers will be called separately by KVM x86 in later patches to fix tick-based accounting. Suggested-by: Thomas Gleixner Cc: Thomas Gleixner Cc: Sean Christopherson Cc: Michael Tokarev Cc: Christian Borntraeger Signed-off-by: Wanpeng Li Co-developed-by: Sean Christopherson Signed-off-by: Sean Christopherson Reviewed-by: Christian Borntraeger --- include/linux/context_tracking.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index bceb06498521..200d30cb3a82 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -131,10 +131,15 @@ static __always_inline void guest_enter_irqoff(void) } } -static __always_inline void guest_exit_irqoff(void) +static __always_inline void context_tracking_guest_exit_irqoff(void) { if (context_tracking_enabled()) __context_tracking_exit(CONTEXT_GUEST); +} + +static __always_inline void guest_exit_irqoff(void) +{ + context_tracking_guest_exit_irqoff(); instrumentation_begin(); if (vtime_accounting_enabled_this_cpu()) @@ -159,6 +164,8 @@ static __always_inline void guest_enter_irqoff(void) instrumentation_end(); } +static __always_inline void context_tracking_guest_exit_irqoff(void) { } + static __always_inline void guest_exit_irqoff(void) { instrumentation_begin();