[libvirt] [Q]Why does libvirt check size of memory inxenStoreDriver?

Atsushi SAKAI sakaia at jp.fujitsu.com
Thu Oct 30 08:56:21 UTC 2008

Hi, Shigeki

At first, libvirt.c should not check VMM-arch specific value.
In this meaning, xs_internal.c do the right thing.
The problem is error handling on libvirt.c(Xen Store error is not handled properly).
Do you investigate it?

Atsushi SAKAI

"S.Sakamoto" <fj0588di at aa.jp.fujitsu.com> wrote:

> Hi,
> I have a question.
> Why does libvirt check size of memory in xenStoreDomainSetMemory of xs_internal.c?
> In the xen not exclude lifecycle,
> when I do the following command for the domain that is shutoff,
> error message is output and return value is 0 and the definition file(=/etc/xen/XXX) is updated.
>   --------------------
>   # virsh setmem(or setmaxmem) guestdom 65535(4096-65535)
>   libvir: Xen Store error : invalid argument in xenStoreDomainSetMemory
>   # echo $?
>   0
>   --------------------
> As a result that I research this,
> this error message is output by the check of the memory size in xenStoreDriver.
> Because libvirt checks the memory size of under 4096 in libvirt.c,
> I think that libvirt should check memory size range of 4096-65535 in libvirt.c.
> Thanks,
> Shigeki Sakamoto.
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