From mboxrd@z Thu Jan 1 00:00:00 1970 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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 984AEC433B4 for ; Thu, 6 May 2021 19:54:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 73B3B613C2 for ; Thu, 6 May 2021 19:54:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233401AbhEFTzH (ORCPT ); Thu, 6 May 2021 15:55:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232012AbhEFTzG (ORCPT ); Thu, 6 May 2021 15:55:06 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82F06C061763 for ; Thu, 6 May 2021 12:54:06 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id md17so3915554pjb.0 for ; Thu, 06 May 2021 12:54:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=5X2Rzdz2NH6PFACa6nLoC7A42J+KFjvAw56dSs0lpaE=; b=PAO26QlDYl2Eaz6UQDTfk1m4vmaRxaiLU57OIW7bF8FSGWOGuhiGemSq4gkBExTYy+ QaVu0kNjNpaKFJ06WitlGYDa7YsBWqORokNmXqrOUM0TIfq68tCHT5JW+TK4wPq6ERvl wn9oQIEH+IBUhUkzNChsdmZj3JIvYw+Qs2ujeozWgkWeqweoQgAFXPtwVQ/GmITR/g9e Ze4hZ4gbPIoZbJMBrA3i4qsRD32yxuFhMkDFlgyqLgaHziTClwLuNF+V/F0JybFZE/ty q8CjaCT2rZbcKd4BSFgt7uYaAyKMlopKGXg/7Lcnl1bVbvGiKzL/HiFQMkZSEbswLOJz nKzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=5X2Rzdz2NH6PFACa6nLoC7A42J+KFjvAw56dSs0lpaE=; b=PtHY1ub9nuMjxMWhHqfPAG87Jie3Gu/LuM58/q0JrYo1sreMX9DnkvoUGOL5Tj6eox PgOgjt3q70/RKYi3UFqpy2/uGMqTNBeKmCSgiCtE/SWvxIPBJGx+UvgjXQQLGL2Y1VLz LhHI1E3aBK5FWjy9F/KVu9AMGcIpzgLcg3c0PvXcere10Hl74JsvPlTMEJyuS9RbJvxo 2dsWjwSNb1FOukyCH5RSjdUyR0XRaqFAk2dzdhtcwbfKAebHrc00YWLtJMrBh+1eMNCw VgY5kNx8Fy65pP/fpEbA96rdLVFbnd1fnkqsnKrt0UAhCcy0OVNJr76ahD1gzlmcYxlc 40Gg== X-Gm-Message-State: AOAM533u/fMdzUeqOJ+hy6HxNeWz/oWJUR/+YG8axN8JaLdtFKz5Pv9S x2fy2d81kqYs1NTV+xH8iLdGYQ== X-Google-Smtp-Source: ABdhPJzyr6JltbHsiyBI0ltWUPDEmo62OOltEQVDT13tc2OnqVP+6J7HEcLf7Hrl96Jo3uXVIE7FHQ== X-Received: by 2002:a17:90a:d24a:: with SMTP id o10mr19185659pjw.138.1620330845560; Thu, 06 May 2021 12:54:05 -0700 (PDT) Received: from google.com (240.111.247.35.bc.googleusercontent.com. [35.247.111.240]) by smtp.gmail.com with ESMTPSA id cp19sm2530785pjb.27.2021.05.06.12.54.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 May 2021 12:54:04 -0700 (PDT) Date: Thu, 6 May 2021 19:54:01 +0000 From: Sean Christopherson To: Marcelo Tosatti Cc: kvm@vger.kernel.org, Paolo Bonzini , Alex Williamson Subject: Re: [patch 1/2] KVM: x86: add start_assignment hook to kvm_x86_ops Message-ID: References: <20210506185732.609010123@redhat.com> <20210506190419.451446263@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210506190419.451446263@redhat.com> Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, May 06, 2021, Marcelo Tosatti wrote: > Index: kvm/arch/x86/kvm/x86.c > =================================================================== > --- kvm.orig/arch/x86/kvm/x86.c > +++ kvm/arch/x86/kvm/x86.c > @@ -11295,7 +11295,11 @@ bool kvm_arch_can_dequeue_async_page_pre > > void kvm_arch_start_assignment(struct kvm *kvm) > { > - atomic_inc(&kvm->arch.assigned_device_count); > + int ret; > + > + ret = atomic_inc_return(&kvm->arch.assigned_device_count); > + if (kvm_x86_ops.start_assignment) > + kvm_x86_ops.start_assignment(kvm, ret); This can be a static_call(), just needs an entry in kvm-x86-ops.h. > } > EXPORT_SYMBOL_GPL(kvm_arch_start_assignment); > > >