Hi, When creating HVM guest(no balloon driver), what's the max memory we could set? We can get the current system free memory by "xl info", but when configure the free memory to a HVM guest, it fail to boot up. Does Xen allocate additional memory when do VM creating? How many the additional memory burning per HVM by Xen?
============================== # xl cr xlexample_win.hvm Parsing config from xlexample_win.hvm libxl: notice: libxl_numa.c:499:libxl__get_numa_candidate: NUMA placement failed, performance might be affected xc: error: Could not allocate memory for HVM guest as we cannot claim memory! (12 = Cannot allocate memory): Internal error libxl: error: libxl_dom.c:979:libxl__build_hvm: hvm building failed libxl: error: libxl_create.c:1163:domcreate_rebuild_done: cannot (re-)build domain: -3 libxl: error: libxl_dm.c:1667:kill_device_model: unable to find device model pid in /local/domain/236/image/device-model-pid libxl: error: libxl.c:1620:libxl__destroy_domid: libxl__destroy_device_model failed for 236 ============================== # xl info ... free_memory : 28036 ... ============================== xlexample_win.hvm configure file: builder = "hvm" name = "win8" memory = 28036 vcpus=2 vif = [ 'type=ioemu, mac=00:15:17:19:2D:35, bridge=xenbr0' ] disk = [ '/root/longtao/win8.qcow,qcow2,xvda,rw'] device_model_override = '/usr/local/lib/xen/bin/qemu-system-i386' device_model_version = 'qemu-xen' sdl=0 vnc=1 stdvga=1 hap=1 usb=1 usbdevice='tablet' hpet=1 Best Regards, Xudong _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
