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=-7.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 0C7B2C49EAB for ; Thu, 24 Jun 2021 07:31:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8D806100A for ; Thu, 24 Jun 2021 07:31:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231553AbhFXHdh (ORCPT ); Thu, 24 Jun 2021 03:33:37 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:34982 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231487AbhFXHdg (ORCPT ); Thu, 24 Jun 2021 03:33:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624519877; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1ummzXLEBVOW6zJVjd9RvyjdRwJ4z9g5ls7IEU8SqM4=; b=R/y7rJsvxaZ3LSb3r3KagQkRBukpodq6YsNcoQIJnDM1numaIMAHqf3h70No+idSjOo8ZZ cFShiMbzitDaIXAVmFLGu8uy+kGfKmvwUSEA63DlvGASqXMyU1IXIyPBjeLQKmbLSk6uXP QiyL3qQK4UNEbR/Kd6vj/QVgGib5pwg= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-572-WdKFnLbgN3CXymkb4ghjMQ-1; Thu, 24 Jun 2021 03:31:15 -0400 X-MC-Unique: WdKFnLbgN3CXymkb4ghjMQ-1 Received: by mail-wr1-f72.google.com with SMTP id x5-20020adff0c50000b029011a7be832b7so1846177wro.18 for ; Thu, 24 Jun 2021 00:31:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=1ummzXLEBVOW6zJVjd9RvyjdRwJ4z9g5ls7IEU8SqM4=; b=i1YzWxQrGVGawdz3qNklk2v5FZaslcgG2eVxLBKmBFx6VqmwPeGPjEu3+rUIf4mBbr 6lsIqPrilH4dI3p6PSg6CGLRloDRwP1sJUIBPzYPIc19mYPxtcs6jkPgk2kGqqAa9Bu5 w6p/QWDQ6jG5Ubjj74nMxmHr6GLJ2WP09G6RHsk106gQegO6ks+GjtiiOxK++xUjXOHZ 909PlAFaIQAbAKr8VC65zmFVu2MypVKgk5FuesyCdGW9HnXUSPblbAXlgDQsHrJYhHVa TmC5G36TK6l9qH4Fl2kLo7fDFNF+IBvj3+ysbkFypghwDa4/cY9fFPbT9lsFxrnGnyO5 ixHA== X-Gm-Message-State: AOAM533o+Unmbp8lOdNaq+OidSTmIp0G4HjjNOeS0+0E/LzkKOHzWfPN FccYIM/+t9gDL8r7nYitkA+ozrex4CujQ+/GbhuKAtjqHmIHVGIcw+idU2YhZvDJWR97WEiZtPB sl2yxKEwiD8Qp+36urLm7Sg== X-Received: by 2002:adf:f88e:: with SMTP id u14mr2674303wrp.391.1624519873867; Thu, 24 Jun 2021 00:31:13 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwmU2A8muf7XixWmRWMn8O50eJCa1GKEjZYZIlN1VsKBfgiuuBfyX9v0BcxFt1KFEfxAoHypw== X-Received: by 2002:adf:f88e:: with SMTP id u14mr2674272wrp.391.1624519873717; Thu, 24 Jun 2021 00:31:13 -0700 (PDT) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id f19sm2269746wre.48.2021.06.24.00.31.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Jun 2021 00:31:13 -0700 (PDT) Subject: Re: [PATCH 3/6] KVM: x86/mmu: avoid struct page in MMU To: David Stevens , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Paul Mackerras , Zhenyu Wang , Zhi Wang Cc: James Morse , Alexandru Elisei , Suzuki K Poulose , Will Deacon , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org References: <20210624035749.4054934-1-stevensd@google.com> <20210624035749.4054934-4-stevensd@google.com> From: Paolo Bonzini Message-ID: <49504c79-2cd4-1707-a0a5-79b679a4b214@redhat.com> Date: Thu, 24 Jun 2021 09:31:11 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210624035749.4054934-4-stevensd@google.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On 24/06/21 05:57, David Stevens wrote: > static int __direct_map(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code, > - int map_writable, int max_level, kvm_pfn_t pfn, > + int map_writable, int max_level, > + const struct kvm_pfn_page *pfnpg, > bool prefault, bool is_tdp) > { > bool nx_huge_page_workaround_enabled = is_nx_huge_pa So the main difference with my tentative patches is that here I was passing the struct by value. I'll try to clean this up for 5.15, but for now it's all good like this. Thanks again! Paolo