From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jan Kiszka <jan.kiszka@siemens.com>
Subject: Re: direct device assignment in nested VM
Date: Fri, 04 Jul 2014 07:44:11 +0200
Message-ID: <53B63F2B.1050503@siemens.com>
References: <CAHqbYQsN-9zMrsZ6aBG-iJ=vJ58y1s_tz5kX63Jo+kf+Nd2q1Q@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
To: Hu Yaohui <loki2441@gmail.com>, kvm <kvm@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Le Tan <tamlokveer@gmail.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <CAHqbYQsN-9zMrsZ6aBG-iJ=vJ58y1s_tz5kX63Jo+kf+Nd2q1Q@mail.gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

On 2014-07-04 05:27, Hu Yaohui wrote:
> Hi All,
> Is direct device assignment in nested VM supported in the latest KVM
> mainline now?

Le Tan is currently working on emulated device assignment (VT-d
emulation in QEMU). This is the necessary first step and could later be
extended to enable assignment of physical devices to nested guests with
support of the host IOMMU (out of scope for Le's project, though).

Jan

-- 
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux