>>> On 20.06.16 at 08:37, <chkwo...@gmail.com> wrote:
> Hi I am studying xen memory setup
> 
> I am wondering the job of scrub heap pages in setup_mm
> 
> If i see the code, it clear unallocated page by setting them to 0 using
> memset instruction
> 
> But it looks unneccessary assuming unallocated page will be written to
> valid data when it is qllocated
> 
> Is there special reason?

Contents of ages freed by the hypervisor or recovered from a dying
guest must not be exposed to another guest.

Jan


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel

Reply via email to