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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0FF1BC433F5 for ; Tue, 12 Apr 2022 13:01:02 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 69AD96B0082; Tue, 12 Apr 2022 09:01:02 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 623276B0083; Tue, 12 Apr 2022 09:01:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 49C446B0085; Tue, 12 Apr 2022 09:01:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0164.hostedemail.com [216.40.44.164]) by kanga.kvack.org (Postfix) with ESMTP id 335C66B0082 for ; Tue, 12 Apr 2022 09:01:02 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id EB6E1A89C8 for ; Tue, 12 Apr 2022 13:01:01 +0000 (UTC) X-FDA: 79348237122.23.0D9CEBB Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by imf03.hostedemail.com (Postfix) with ESMTP id 2068D20008 for ; Tue, 12 Apr 2022 13:00:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649768460; x=1681304460; h=date:from:to:cc:subject:message-id:reply-to:references: mime-version:in-reply-to; bh=lExz5hm5xcTzyOEY6YHWDS3MJSoSHVq4Qg2JWxxoCRg=; b=DuxuUEigKqGG+ZmpkEKib9jXggCICKfRJ+SbrKsJ+E4hcYHFiLQbaLlw vBIjbYXvEKErrubuLOxMRMzclJNaBpT5FV0SlvvHt56f7RqsssYcftM+o /D/nceyTdWVMLZBwCT9dr+ZChXXzabY1IJGfuOeix9dZodORWhb9EJbAa MPWSrlz+Aok/38XFwR4lWQY7LB2hguUCM5XtJF5mC+n4xbQWzyNAXqkEd s5KKmLcaK+CPSs7ujdZ3FmfbAemSZGil7NkVgadZoaOfH5DeKW8DHo3gf kGtQ5Tt5EcG2Cy84bo/zsxfGc+LcA5StCLCohBmLTXyC+zosDmIWsC6cO Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10314"; a="242955078" X-IronPort-AV: E=Sophos;i="5.90,253,1643702400"; d="scan'208";a="242955078" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2022 06:00:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,253,1643702400"; d="scan'208";a="699826034" Received: from chaop.bj.intel.com (HELO localhost) ([10.240.192.101]) by fmsmga001.fm.intel.com with ESMTP; 12 Apr 2022 06:00:51 -0700 Date: Tue, 12 Apr 2022 21:00:40 +0800 From: Chao Peng To: Vishal Annapurve Cc: Andy Lutomirski , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, qemu-devel@nongnu.org, Paolo Bonzini , Jonathan Corbet , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H . Peter Anvin" , Hugh Dickins , Jeff Layton , "J . Bruce Fields" , Andrew Morton , Mike Rapoport , Steven Price , "Maciej S . Szmigiero" , Vlastimil Babka , Yu Zhang , "Kirill A . Shutemov" , Jun Nakajima , dave.hansen@intel.com, ak@linux.intel.com, david@redhat.com Subject: Re: [PATCH v5 00/13] KVM: mm: fd-based approach for supporting KVM guest private memory Message-ID: <20220412130040.GD8013@chaop.bj.intel.com> Reply-To: Chao Peng References: <20220310140911.50924-1-chao.p.peng@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Rspamd-Server: rspam09 X-Rspam-User: X-Stat-Signature: egn3fru6fdzfpiik1d8dyddzyay4159u Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=DuxuUEig; dmarc=pass (policy=none) header.from=intel.com; spf=none (imf03.hostedemail.com: domain of chao.p.peng@linux.intel.com has no SPF policy when checking 192.55.52.151) smtp.mailfrom=chao.p.peng@linux.intel.com X-Rspamd-Queue-Id: 2068D20008 X-HE-Tag: 1649768459-725666 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Apr 08, 2022 at 11:35:05AM -1000, Vishal Annapurve wrote: > On Mon, Mar 28, 2022 at 10:17 AM Andy Lutomirski wrote: > > > > On Thu, Mar 10, 2022 at 6:09 AM Chao Peng wrote: > > > > > > This is the v5 of this series which tries to implement the fd-based KVM > > > guest private memory. The patches are based on latest kvm/queue branch > > > commit: > > > > > > d5089416b7fb KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2 > > > > Can this series be run and a VM booted without TDX? A feature like > > that might help push it forward. > > > > --Andy > > I have posted a RFC series with selftests to exercise the UPM feature > with normal non-confidential VMs via > https://lore.kernel.org/kvm/20220408210545.3915712-1-vannapurve@google.com/ Thanks Vishal, this sounds very helpful, it already started to find bugs. Chao > > -- Vishal