[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
>>> On 28.07.14 at 19:55, <wei.ye@xxxxxxxxx> wrote: > ioreq-server is proposed to forward PIO and MMIO request to multiple device > models according to the io range. XenGT (Intel Graphics Virtualization > technology, > please refer to > https://01.org/xen/blogs/srclarkx/2013/graphics-virtualization- > xengt) driver reside in Dom0 as a virtual graphics device model also need to > trap > and emulate the guest's write operation to some specific memory pages, like > the > memory pages used by guest graphics driver as PPGTT(per-process graphics > translation table). We add an new p2m type "p2m_ram_wp" to trap the page > write > operation. Page of this new p2m type is read only and for write, the request > will > go to device model via ioreq-server. So how is this write-protection supposed to work on the IOMMU side when sharing page tables? Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |