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From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>,
	GeorgeDunlap <George.Dunlap@eu.citrix.com>,
	Eddie Dong <eddie.dong@intel.com>,
	xen-devel <xen-devel@lists.xen.org>,
	paul.durrant@citrix.com, Jun Nakajima <jun.nakajima@intel.com>,
	Yang ZZhang <yang.z.zhang@intel.com>
Subject: Re: [PATCH v2 4/5] Viridian: populate CPUID leaf 6
Date: Thu, 4 Jul 2013 11:18:27 +0100	[thread overview]
Message-ID: <51D54BF3.5020500@citrix.com> (raw)
In-Reply-To: <51D564FC02000078000E2B49@nat28.tlf.novell.com>

On 04/07/13 11:05, Jan Beulich wrote:
>>>> On 04.07.13 at 11:38, Andrew Cooper <andrew.cooper3@citrix.com> wrote:
>> On 24/06/13 08:06, Jan Beulich wrote:
>>> Properly reporting hardware features we use can only help Windows in
>>> making decisions towards its own performance tuning.
>>>
>>> Signed-off-by: Jan Beulich <jbeulich@suse.com>
>> Does viridian allow for the possibility of these flags to change during
>> runtime, e.g. migrating an HVM domain from hardware supporting HAP to
>> hardware which can only manage shadow?
> Don't know, but this is only reporting capabilities of the hypervisor,
> so if they store those anywhere for any purpose they wouldn't
> have migration in mind even on their own hypervisor.
>
> Jan
>

Very true.

Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

  reply	other threads:[~2013-07-04 10:18 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-24  6:54 [PATCH v2 0/5] VMX: fix interaction of Viridian emulation with advanced features Jan Beulich
2013-06-24  7:03 ` [PATCH v2 1/5] VMX: fix interaction of APIC-V and Viridian emulation Jan Beulich
2013-06-24 10:10   ` George Dunlap
2013-06-24 12:52     ` Jan Beulich
2013-06-24 13:09       ` George Dunlap
2013-06-24 13:26         ` Jan Beulich
2013-06-24 13:29           ` George Dunlap
2013-06-24 13:48             ` Jan Beulich
2013-07-04  9:03   ` Andrew Cooper
2013-06-24  7:04 ` [PATCH v2 2/5] VMX/Viridian: suppress MSR-based APIC suggestion when having APIC-V Jan Beulich
2013-06-25 10:29   ` Paul Durrant
2013-06-25 13:43     ` George Dunlap
2013-06-25 13:59       ` Jan Beulich
2013-06-24  7:06 ` [PATCH v2 3/5] VMX: suppress pointless indirect calls Jan Beulich
2013-07-04  9:10   ` Andrew Cooper
2013-06-24  7:06 ` [PATCH v2 4/5] Viridian: populate CPUID leaf 6 Jan Beulich
2013-07-04  9:38   ` Andrew Cooper
2013-07-04 10:05     ` Jan Beulich
2013-07-04 10:18       ` Andrew Cooper [this message]
2013-06-24  7:08 ` [PATCH v2 5/5] Viridian: cleanup Jan Beulich
2013-07-04  9:38   ` Andrew Cooper
2013-07-04  8:38 ` [PATCH v2 0/5] VMX: fix interaction of Viridian emulation with advanced features Jan Beulich
2013-07-04  9:24   ` Zhang, Yang Z

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