[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] Xen + other stuff?
Is this a hugh think to support in 1) the hypervisor? 2) domain 0 control functions? Does the hyper visor support PAE today? If the hypervisor did, then even if the domain 0 didn't support PAE, (and but the non-0 guest domain did), shouldn't domain 0 be able to construct and initialize the necessary page mappings on behalf of the guest, and then allow the hypervisor to actually stuff them into the hardware? -----Original Message----- From: xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:xen-devel-admin@xxxxxxxxxxxxxxxxxxxxx]On Behalf Of Bin Ren Sent: Thursday, November 13, 2003 4:03 PM To: Devel Xen Subject: Re: [Xen-devel] Xen + other stuff? On 13 Nov 2003, at 20:26, Keir Fraser wrote: > With CONFIG_HIGHMEM, Linux no longer needs a permanent mapping for > every page it owns. Pages in high memory can be temporarily mapped in > (just as the domain builder does in user space). We'll port this > config option real soon now, and that will mean that every Xenolinux > instance could be allocated anything up to 4GB. > > -- Keir To add, currently there are two modes of High Memory support: (1)4G: It uses 2 level page table entry + dynamic mapping so that each (Xeno)Linux instance can use anything up to 4G of physical memory. (2)64G: It uses 3 level PAE page table entry + dynamic mapping so that each (Xeno)Linux instance can use anything up to 64G of physical memory. -- Bin ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel ------------------------------------------------------- This SF.Net email sponsored by: ApacheCon 2003, 16-19 November in Las Vegas. Learn firsthand the latest developments in Apache, PHP, Perl, XML, Java, MySQL, WebDAV, and more! http://www.apachecon.com/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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