From: "Jan Beulich" <JBeulich@suse.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: kevin.tian@intel.com, eddie.dong@intel.com,
jun.nakajima@intel.com, suravee.suthikulpanit@amd.com,
xen-devel@lists.xen.org
Subject: Re: [PATCH v5 0/3] Time-related fixes for migration
Date: Thu, 17 Apr 2014 08:46:48 +0100 [thread overview]
Message-ID: <534FA3080200007800009E08@nat28.tlf.novell.com> (raw)
In-Reply-To: <1397689165-5242-1-git-send-email-boris.ostrovsky@oracle.com>
>>> On 17.04.14 at 00:59, <boris.ostrovsky@oracle.com> wrote:
> Version 5:
> * Fixed checks in tsc_set_info to make sure that PV works.
>
> The fix also covers PVH case although after having a quick look at PVH
> support wrt time/TSC it's pretty clear that more work needs to be done.
> For example, PVH doesn't appear to touch TSC offsets in VMCB, it uses
PVH and VMCB (i.e. SVM) don't work together anyway.
Jan
> hosts TSC value as is. It also doesn't initialise guest time (which is
> possibly why TSC emulation doesn't work). All these issues will have to
> be addressed separately.
>
> * Syntax cleanup
next prev parent reply other threads:[~2014-04-17 7:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-16 22:59 [PATCH v5 0/3] Time-related fixes for migration Boris Ostrovsky
2014-04-16 22:59 ` [PATCH v5 1/3] x86: Use native RDTSC(P) execution when guest and host frequencies are the same Boris Ostrovsky
2014-04-16 22:59 ` [PATCH v5 2/3] x86/svm: Enable TSC scaling Boris Ostrovsky
2014-04-16 22:59 ` [PATCH v5 3/3] x86/HVM: Use fixed TSC value when saving or restoring domain Boris Ostrovsky
2014-04-17 7:46 ` Jan Beulich [this message]
2014-04-17 13:30 ` [PATCH v5 0/3] Time-related fixes for migration Boris Ostrovsky
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