[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH][VTD] enable integrated graphics passthrough for Calpella and Sandybridge
On Tue, 8 Jun 2010, Kay, Allen M wrote: > Stephano, > > Thanks for your feedback. I add "#ifdef CONFIG_PASSTHROUGH" in the next > version of the patch. > > I have tested the patch on a Intel Montevina software development platform > and found it has the same behavior as current xen qemu upstream. > > Can others who have been playing with IGD passthrough give the patch a try on > older platforms? > Are there any older platforms without opregion support? If that is the case what is the result of executing this code on such a platform? + /* 1:1 map ASL Storage register value */ + igd_opregion = pt_pci_host_read(0, 2, 0, 0xfc, 4); + PT_LOG("register_vga: igd_opregion = %x\n", igd_opregion); + ret |= xc_domain_memory_mapping(xc_handle, domid, + igd_opregion >> XC_PAGE_SHIFT, + igd_opregion >> XC_PAGE_SHIFT, + 2, + DPCI_ADD_MAPPING); _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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