From: Amod <amodjaltade@gmail.com>
To: xen-devel@lists.xensource.com
Subject: Sharing information between Driver Domain and hypervisor
Date: Thu, 14 Jan 2010 00:29:31 +0530 [thread overview]
Message-ID: <53e074931001131059r32fd26d7vdf2bb4deaf8f28b8@mail.gmail.com> (raw)
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Hello,
I want to share some information between a driver domain for a NIC and the
hypervisor, for eg, the number of packets transferred etc.
To do this, I am using the HYPERVISOR_shared_info in the netback driver,
within the IDD to store the count of number of packets transferred. I have
added some extra fields in the shared_info structure to suit my purpose.
I want to transfer this packet count from netback to the hypervisor.
As i understand, the HYPERVISOR_shared_info page of a domain is shared as
shared_info in the struct domain (defined in sched.h).
But, the data is not propagating from the netback driver to the hypervisor.
Even though the packet count in IDD's HYPERVISOR_shared_info is increasing,
the packet count in domain->shared_info does not change.
What am i missing here ? or is there a better way to do this ?
Thanks in advance !
--
--
With Regards ,
Amod Jaltade
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