From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Juergen Gross <jgross@suse.com>
Cc: lguest@lists.ozlabs.org,
xen-devel <xen-devel@lists.xenproject.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
virtualization@lists.linux-foundation.org
Subject: Re: Support of lguest?
Date: Mon, 15 May 2017 16:22:12 +0200 [thread overview]
Message-ID: <87r2zqi4iz.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <7696c3d8-0ede-2704-34bb-d3d7dac6883d@suse.com> (Juergen Gross's message of "Mon, 15 May 2017 16:09:25 +0200")
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
next prev parent reply other threads:[~2017-05-15 14:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-15 14:09 Support of lguest? Juergen Gross
2017-05-15 14:22 ` Vitaly Kuznetsov [this message]
2017-05-15 14:24 ` Juergen Gross
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