From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: "Xen-devel@lists.xensource.com" <Xen-devel@lists.xensource.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: [hybrid]: hang in update_wall_time
Date: Tue, 20 Mar 2012 12:08:58 -0700 [thread overview]
Message-ID: <20120320120858.29e56741@mantra.us.oracle.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1203201227090.923@kaball-desktop>
On Tue, 20 Mar 2012 12:39:24 +0000
Stefano Stabellini <stefano.stabellini@eu.citrix.com> wrote:
> stime_local_stamp is set to get_s_time() and get_s_time scales the tsc
> value according to local_tsc_stamp and tsc_scale. You need to make
> sure that these two parameters are correct for dom0 hybrid as well.
>
> Also I would keep an eye on arch.hvm_vcpu.stime_offset and
> arch.hvm_vcpu.cache_tsc_offset that only play a role in hvm domains.
> Maybe they are not set to correct values in your case?
>
> Give a look at hvm_set_guest_tsc and hvm_set_guest_time. You probably
> need to initialize them on hybrid as well and make sure you take the
> is_hvm_domain path in __update_vcpu_system_time.
Hmm... I thought we decided we didn't want any HVM time paths for hybrid,
but PV only. A bit confused now. I'll take a look at HVM time variables
nevertheless.
thanks,
Mukesh
next prev parent reply other threads:[~2012-03-20 19:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 1:30 [hybrid]: hang in update_wall_time Mukesh Rathor
2012-03-20 9:19 ` Jan Beulich
2012-03-21 18:08 ` Mukesh Rathor
2012-03-20 12:39 ` Stefano Stabellini
2012-03-20 19:08 ` Mukesh Rathor [this message]
2012-03-21 10:42 ` Stefano Stabellini
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