[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Xen-devel] [PATCH v1 0/2] Extend ioreq-server to support page write protection
- To: "Kevin Tian" <kevin.tian@xxxxxxxxx>
- From: "Jan Beulich" <JBeulich@xxxxxxxx>
- Date: Tue, 05 Aug 2014 07:35:18 +0100
- Cc: "keir@xxxxxxx" <keir@xxxxxxx>, "ian.campbell@xxxxxxxxxx" <ian.campbell@xxxxxxxxxx>, "stefano.stabellini@xxxxxxxxxxxxx" <stefano.stabellini@xxxxxxxxxxxxx>, "tim@xxxxxxx" <tim@xxxxxxx>, "ian.jackson@xxxxxxxxxxxxx" <ian.jackson@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>, "Paul.Durrant@xxxxxxxxxx" <Paul.Durrant@xxxxxxxxxx>, Zhiyuan Lv <zhiyuan.lv@xxxxxxxxx>, Wei Ye <wei.ye@xxxxxxxxx>
- Delivery-date: Tue, 05 Aug 2014 06:35:23 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
>>> On 04.08.14 at 23:34, <kevin.tian@xxxxxxxxx> wrote:
> 2nd option, like Wei mentioned in another mail, is to treat such write
> protected PPGTT page tables as MMIO. new hypercall is required to
> change the p2m type between p2m_io and p2m_ram, based on
> allocation/free of guest page table. This way may impact performance
> on read though.
Depends on whether you mean mmio_dm or mmio_direct here.
Jan
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel
|
