On Fri, 2013-05-24 at 16:41 -0300, Marcelo Tosatti wrote:
On Fri, May 24, 2013 at 06:11:16AM -0400, Vadim Rozenfeld wrote:
Is there a better option?
If setting TscSequence to zero makes Windows fall back to the MSR this is a
better option.
+1
This is why MS has two different
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Gleb Natapov g...@redhat.com
Cc: Peter Lieven p...@dlhnet.de, Vadim Rozenfeld vroze...@redhat.com,
kvm@vger.kernel.org, p...@dlh.net
Sent: Thursday, May 23, 2013 11:35:59 PM
Subject: Re: [RFC PATCH v2 2/2] add support
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm@vger.kernel.org, g...@redhat.com, p...@dlh.net
Sent: Thursday, May 23, 2013 11:47:46 PM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Thu, May 23
- Original Message -
From: Gleb Natapov g...@redhat.com
To: Marcelo Tosatti mtosa...@redhat.com
Cc: Vadim Rozenfeld vroze...@redhat.com, kvm@vger.kernel.org, p...@dlh.net
Sent: Friday, May 24, 2013 1:31:10 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Thu
- Original Message -
From: Paolo Bonzini pbonz...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm@vger.kernel.org, g...@redhat.com, mtosa...@redhat.com, p...@dlh.net
Sent: Friday, May 24, 2013 2:44:50 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
Il
On Fri, May 24, 2013 at 06:11:16AM -0400, Vadim Rozenfeld wrote:
Is there a better option?
If setting TscSequence to zero makes Windows fall back to the MSR this is a
better option.
+1
This is why MS has two different mechanisms:
iTSC as a primary, reference counters as a fall-back.
, May 22, 2013 10:50:46 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
, p...@dlh.net
Sent: Wednesday, May 22, 2013 10:50:46 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based
: kvm@vger.kernel.org, g...@redhat.com, p...@dlh.net
Sent: Wednesday, May 22, 2013 10:50:46 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm@vger.kernel.org, g...@redhat.com, p...@dlh.net
Sent: Thursday, May 23, 2013 7:23:30 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Wed, May 22
: Wednesday, May 22, 2013 10:50:46 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On 22.05.2013 23:23, Marcelo Tosatti wrote:
On Wed, May 22, 2013 at 03:22:55AM -0400, Vadim Rozenfeld wrote:
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm
, p...@dlh.net
Sent: Thursday, May 23, 2013 4:18:55 PM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On 22.05.2013 23:23, Marcelo Tosatti wrote:
On Wed, May 22, 2013 at 03:22:55AM -0400, Vadim Rozenfeld wrote:
- Original Message -
From: Marcelo Tosatti
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On 22.05.2013 23:23, Marcelo Tosatti wrote:
On Wed, May 22, 2013 at 03:22:55AM -0400, Vadim Rozenfeld wrote:
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
On Thu, May 23, 2013 at 12:13:16PM +0300, Gleb Natapov wrote:
Reference TSC during Save and Restore and Migration
To address migration scenarios to physical platforms that do not support
iTSC, the TscSequence field is used. In the event that a guest partition
is migrated from an
On Thu, May 23, 2013 at 08:21:29AM -0400, Vadim Rozenfeld wrote:
@@ -1848,6 +1847,11 @@ static int set_msr_hyperv_pw(struct kvm_vcpu
*vcpu, u32 msr, u64 data)
HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT);
if (kvm_is_error_hva(addr))
On Thu, May 23, 2013 at 12:12:29PM +0300, Gleb Natapov wrote:
To address migration scenarios to physical platforms that do not support
iTSC, the TscSequence field is used. In the event that a guest partition
is migrated from an iTSC capable host to a non-iTSC capable host, the
hypervisor
On Thu, May 23, 2013 at 10:35:59AM -0300, Marcelo Tosatti wrote:
On Thu, May 23, 2013 at 12:13:16PM +0300, Gleb Natapov wrote:
Reference TSC during Save and Restore and Migration
To address migration scenarios to physical platforms that do not support
iTSC, the TscSequence field
On Thu, May 23, 2013 at 10:53:38AM -0300, Marcelo Tosatti wrote:
On Thu, May 23, 2013 at 12:12:29PM +0300, Gleb Natapov wrote:
To address migration scenarios to physical platforms that do not support
iTSC, the TscSequence field is used. In the event that a guest partition
is migrated
Il 19/05/2013 09:06, Vadim Rozenfeld ha scritto:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
for an Invariant Time Stamp Counter (iTSC).
NOTE: This code will survive migration due to lack of VM stop/resume
- Original Message -
From: Marcelo Tosatti mtosa...@redhat.com
To: Vadim Rozenfeld vroze...@redhat.com
Cc: kvm@vger.kernel.org, g...@redhat.com, p...@dlh.net
Sent: Wednesday, May 22, 2013 10:50:46 AM
Subject: Re: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19
: [RFC PATCH v2 2/2] add support for Hyper-V invariant TSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
for an Invariant Time Stamp Counter (iTSC
On Sun, May 19, 2013 at 05:06:37PM +1000, Vadim Rozenfeld wrote:
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
for an Invariant Time Stamp Counter (iTSC).
NOTE: This code will survive migration due to lack of VM
The following patch allows to activate a partition reference
time enlightenment that is based on the host platform's support
for an Invariant Time Stamp Counter (iTSC).
NOTE: This code will survive migration due to lack of VM stop/resume
handlers, when offset, scale and sequence should be
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