Re: Support of lguest?

Path	csiph.com!news.redatomik.org!aioe.org!bofh.it!news.nic.it!robomod
From	Vitaly Kuznetsov <vkuznets@redhat.com>
Newsgroups	linux.kernel
Subject	Re: Support of lguest?
Date	Mon, 15 May 2017 16:30:03 +0200
Message-ID	<tHpay-Ra-25@gated-at.bofh.it> (permalink)
References	<tHoRb-KQ-13@gated-at.bofh.it>
Dmarc-Filter	OpenDMARC Filter v1.3.2 mx1.redhat.com 386C7A1F6B
Authentication-Results	ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com
Authentication-Results	ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=vkuznets@redhat.com
Dkim-Filter	OpenDKIM Filter v2.11.0 mx1.redhat.com 386C7A1F6B
User-Agent	Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)
MIME-Version	1.0
Content-Type	text/plain
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 [10.5.110.39]); Mon, 15 May 2017 14:22:15 +0000 (UTC)
Sender	robomod@news.nic.it
List-ID	<linux-kernel.vger.kernel.org>
X-Mailing-List	linux-kernel@vger.kernel.org
Approved	robomod@news.nic.it
Lines	19
Organization	linux.* mail to news gateway
X-Original-Cc	Rusty Russell <rusty@rustcorp.com.au>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, virtualization@lists.linux-foundation.org, xen-devel <xen-devel@lists.xenproject.org>, lguest@lists.ozlabs.org
X-Original-Date	Mon, 15 May 2017 16:22:12 +0200
X-Original-Message-ID	<87r2zqi4iz.fsf@vitty.brq.redhat.com>
X-Original-References	<7696c3d8-0ede-2704-34bb-d3d7dac6883d@suse.com>
X-Original-Sender	linux-kernel-owner@vger.kernel.org
Xref	csiph.com linux.kernel:1641750

Show key headers only | View raw

Juergen Gross <jgross@suse.com> writes:

> Lguest and Xen pv-guests are the only users of pv_mmu_ops (with the
> one exception of the .exit_mmap member, which is being used by Xen
> HVM-guests, too).
>
> As it is possible now to build a kernel without Xen pv-guest support
> while keeping PVH and PVHVM support, I thought about putting most
> pv_mmu_ops functions in #ifdef CONFIG_XEN_HAS_PVMMU sections.

There is an ongoing work to enable PV TLB flushing for Hyper-V guests:
http://driverdev.linuxdriverproject.org/pipermail/driverdev-devel/2017-April/104411.html

it utilizes .flush_tlb_others member in pv_mmu_ops.

hopefully, this work will be merged in 4.13.

-- 
  Vitaly

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Support of lguest? Juergen Gross <jgross@suse.com> - 2017-05-15 16:10 +0200
  Re: Support of lguest? Juergen Gross <jgross@suse.com> - 2017-05-15 16:30 +0200
  Re: Support of lguest? Vitaly Kuznetsov <vkuznets@redhat.com> - 2017-05-15 16:30 +0200

csiph-web