On 10/10/07, Avi Kivity <[EMAIL PROTECTED]> wrote: > Jun Koi wrote: > > Hi, > > > > On 10/10/07, Avi Kivity <[EMAIL PROTECTED]> wrote: > > > >> We've now switched to allocating guest memory in userspace rather than > >> in the kernel. This is important if you have a mainframe, but also if > >> you want to share memory between guests and implement nice features like > >> swapping. > >> > > > > This is interesting! But how can we do that now? (share memory between > > guests) > > > > > > It's not exposed by qemu, but you can now mmap() some file (or use SysV > shared memory) and use that as guest memory. >
OK, lets say we have 2 guest VMs share a memory, like mmap() a tmpfs file (which is actually in memory). Now one writes to the memory (shared file). Can we guarantee that the memory immediately updated, so other will see the change immediately? Or the data might be cached for a while, befere being flushed to the shared memory? Thanks, Jun ------------------------------------------------------------------------- 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
