Avi Kivity wrote: >>>> I wonder if there's a more elegant way dealing with older >>>> userspaces. For instance, is there any reason why we can allocate a >>>> userspace memory region on behalf of userspace. That way swap would >>>> even work with older userspaces. >>>> >>>> >>> if we can do that, yes swap will work on older userspace. >>> >>> >> I think it's just a matter of calling do_mmap() with the appropriate >> parameters. It looks likes there's some drivers call do_mmap() directly. >> >> >> > > This will halve the maximum size of virtual machines on i386 since > userspace will also mmap() the memory, and the virtual address space is > restricted to 3GB. > >
Upon further reflection, considering that this will only be generally available in a kernel in six months (2.6.25) and that new userspace has already been released, and that only i386 is affected, the simplification may be worthwhile. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
