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Re: [Xen-users] Cross domain syncrhonization in Zen.


  • To: "Tim Freeman" <tfreeman@xxxxxxxxxxx>
  • From: "Maulik Patel" <maulik.patel@xxxxxxxxx>
  • Date: Mon, 20 Mar 2006 09:54:51 +0530
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 20 Mar 2006 04:26:13 +0000
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Thanks Tim.
 
I see HYPERVISOR_shared_info struct exported in xen.h. That means it common to all the VMs and hence can be used across all VM for time keeping ? (Not sure though).
 
But looking at the shared_info_t definition, it looks like per VM structure.
shared_info can also be accessed via start_info which seems like a per VM structure.
 
Can someone  through light on it.
 
Thanks,
Maulik.
 
On 3/17/06, Tim Freeman <tfreeman@xxxxxxxxxxx> wrote:
On Fri, 17 Mar 2006 15:57:59 +0530
"Maulik Patel" < maulik.patel@xxxxxxxxx> wrote:
[...]
> What is the source of gettimeofday() for an O.S running on Xen ?

This section of the interface manual explains the various time mechanisms:

http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/interface/interface.html#SECTION00340000000000000000

Tim


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