[Xen-devel] xm mem-set for HVM Domain

[cendhu <cendhu@xxxxxxxxx>]

HI,

     I have an ubuntu 10.04 with xen kernel 2.6.32.11 as Dom0. xm mem-set does not seem to have any effect on the HVM domains.

Xen Version : 4.0.1

HVM : Ubuntu 10.04

I have allocated 512MB to dom0 and 2048MB to HVM.

$xm list

Name                                        ID   Mem VCPUs      State   Time(s)

Domain-0                                     0   512     1     r-----    358.8

lucid_hvm                                    1  2048     1     -b----      5.9

The output of free command in the HVM

$free -m

             total       used       free     shared    buffers     cached

Mem:          2012        153       1858          0         24         74

-/+ buffers/cache:         55       1957

Swap:          228          0        228

Using xm mem-set, i tried to allocate 1024MB to the HVM

$xm mem-set lucid_hvm 1024

$xm list

Name                                        ID   Mem VCPUs      State   Time(s)

Domain-0                                     0   512     1     r-----    363.1

lucid_hvm                                    1  1024     1     -b----      7.2

 xm list shows that only 1024MB of physical memory is allocated to the HVM.

but, the output of free command in the HVM

$ free -m

             total       used       free     shared    buffers     cached

Mem:          2012        154       1858          0         24         74

-/+ buffers/cache:         55       1957

Swap:          228          0        228

No change in allocated memory. But, xm mem-set works perfectly with paraVM.

I migrated HVM to another machine and checked the amount of data transferred which is 2048MB.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel