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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42692C433EF for ; Tue, 12 Apr 2022 13:13:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355544AbiDLNPn (ORCPT ); Tue, 12 Apr 2022 09:15:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356782AbiDLNOJ (ORCPT ); Tue, 12 Apr 2022 09:14:09 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 46A2211C0C; Tue, 12 Apr 2022 06:00:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649768459; x=1681304459; h=date:from:to:cc:subject:message-id:reply-to:references: mime-version:in-reply-to; bh=lExz5hm5xcTzyOEY6YHWDS3MJSoSHVq4Qg2JWxxoCRg=; b=Y+6d7TPQpIfSQQxlgYThQcAbaudKPjvUzwzJcvxX3Sqil7dW7Emrc8xt l24+fusu2XXmJIJ1UYbAJlMnVgkJRL06DZqmGsZHBtH0dUexAFAjpwUB8 wO61WBwfoh1XZcH20OrK9QnoYUalxPPKCDX6CRDhb1cGcJX2g/24ViUQf vvWThyvfl8ERv4DT4oIWY5W9RNdyRj4RQjxoxjaemKkKLLY7qiVtRrOmW P/v11FVG4/ZDbW21y1F2WTeQPGlcIhu3fE/QOYD5gUbWSiqkWw24R0FxG vG9GG03m04HF7kdfrErSKP9AsZmbTO+L7VCG556xANO4+mGSf66TO0aYk w==; X-IronPort-AV: E=McAfee;i="6400,9594,10314"; a="348805462" X-IronPort-AV: E=Sophos;i="5.90,253,1643702400"; d="scan'208";a="348805462" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.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) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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