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=-0.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 12E05C67839 for ; Thu, 13 Dec 2018 13:13:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C9EC720849 for ; Thu, 13 Dec 2018 13:13:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C9EC720849 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729379AbeLMNNb (ORCPT ); Thu, 13 Dec 2018 08:13:31 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51322 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729218AbeLMNNb (ORCPT ); Thu, 13 Dec 2018 08:13:31 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 67E2AC0587F9; Thu, 13 Dec 2018 13:13:30 +0000 (UTC) Received: from [10.36.112.30] (ovpn-112-30.ams2.redhat.com [10.36.112.30]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 98CE15D756; Thu, 13 Dec 2018 13:13:23 +0000 (UTC) Subject: Re: [PATCH v8 0/7] KVM: x86: Allow Qemu/KVM to use PVH entry point To: Maran Wilson , x86@kernel.org, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, jgross@suse.com Cc: boris.ostrovsky@oracle.com, bp@suse.de, dave.hansen@linux.intel.com, davem@davemloft.net, gregkh@linuxfoundation.org, hpa@zytor.com, jpoimboe@redhat.com, kirill.shutemov@linux.intel.com, luto@kernel.org, mchehab@kernel.org, mingo@redhat.com, rdunlap@infradead.org, tglx@linutronix.de, thomas.lendacky@amd.com, hch@infradead.org, roger.pau@citrix.com, rkrcmar@redhat.com References: <1544076152-21637-1-git-send-email-maran.wilson@oracle.com> From: Paolo Bonzini Openpgp: preference=signencrypt Autocrypt: addr=pbonzini@redhat.com; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Thu, 13 Dec 2018 13:13:30 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/12/18 19:09, Maran Wilson wrote: > On 12/6/2018 1:21 PM, Paolo Bonzini wrote: >> On 06/12/18 07:02, Maran Wilson wrote: >>> For certain applications it is desirable to rapidly boot a KVM virtual >>> machine. In cases where legacy hardware and software support within the >>> guest is not needed, Qemu should be able to boot directly into the >>> uncompressed Linux kernel binary without the need to run firmware. >>> >>> There already exists an ABI to allow this for Xen PVH guests and the ABI >>> is supported by Linux and FreeBSD: >>> >>>     https://xenbits.xen.org/docs/unstable/misc/pvh.html >>> >>> This patch series would enable Qemu to use that same entry point for >>> booting KVM guests. >> Thanks!  I should be able to post a Tested-by next Monday.  Boris, are >> you going to pick it up for 4.21? > > Hi Paolo, > > Are you still planning on running some testing of your own for these > patches? Should Boris wait to hear from you before moving forward? He can go ahead with v9, I was just curious about it. Paolo