Kivity; kvm@vger.kernel.org; Zhang, Xiantao; Liu, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Tue, Oct 09, 2012 at 04:10:30PM +, Auld, Will wrote:
I am just testing the second version of this patch. It addresses all the
comments so far except Marcelo's issue
,
Will
-Original Message-
From: Marcelo Tosatti [mailto:mtosa...@redhat.com]
Sent: Wednesday, October 10, 2012 5:53 AM
To: Auld, Will
Cc: Avi Kivity; kvm@vger.kernel.org; Zhang, Xiantao; Liu, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Tue, Oct 09, 2012 at 04:10
, Will; kvm@vger.kernel.org; Zhang, Xiantao
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the IA32_TIME_STAMP_COUNTER MSR adds (or
subtracts) value X from the TSC,
the logical
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the IA32_TIME_STAMP_COUNTER MSR adds (or
subtracts) value X from the TSC,
the logical processor also adds (or subtracts) value X from the
IA32_TSC_ADJUST MSR.
This is not handled in the
On Tue, Oct 09, 2012 at 02:12:18PM +0200, Avi Kivity wrote:
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the IA32_TIME_STAMP_COUNTER MSR adds (or
subtracts) value X from the TSC,
the logical processor also adds (or subtracts)
On 10/09/2012 04:24 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 02:12:18PM +0200, Avi Kivity wrote:
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the IA32_TIME_STAMP_COUNTER MSR adds (or
subtracts) value X from the TSC,
the
On Tue, Oct 09, 2012 at 04:26:32PM +0200, Avi Kivity wrote:
On 10/09/2012 04:24 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 02:12:18PM +0200, Avi Kivity wrote:
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the
On 10/09/2012 04:27 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 04:26:32PM +0200, Avi Kivity wrote:
On 10/09/2012 04:24 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 02:12:18PM +0200, Avi Kivity wrote:
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
, October 09, 2012 5:12 AM
To: Marcelo Tosatti
Cc: Auld, Will; kvm@vger.kernel.org; Zhang, Xiantao
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On 10/08/2012 07:30 PM, Marcelo Tosatti wrote:
From Intel's manual:
• If an execution of WRMSR to the IA32_TIME_STAMP_COUNTER MSR adds
On Tue, Oct 09, 2012 at 04:30:28PM +0200, Avi Kivity wrote:
On 10/09/2012 04:27 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 04:26:32PM +0200, Avi Kivity wrote:
On 10/09/2012 04:24 PM, Marcelo Tosatti wrote:
On Tue, Oct 09, 2012 at 02:12:18PM +0200, Avi Kivity wrote:
On 10/08/2012
On Wed, Sep 19, 2012 at 05:44:46PM +, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00 2001
From: Will Auld will.a...@intel.com
Date: Wed, 12 Sep 2012 18:10:56 -0700
Subject: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
CPUID.7.0.EBX[1]=1 indicates
, Will
Cc: kvm@vger.kernel.org; Avi Kivity; Zhang, Xiantao; Liu, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Thu, Sep 27, 2012 at 08:31:22AM -0300, Marcelo Tosatti wrote:
On Thu, Sep 27, 2012 at 12:50:16AM +, Auld, Will wrote:
Marcelo,
I think I am missing
, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 26, 2012 at 10:58:46PM +, Auld, Will wrote:
Avi, Still working on your suggestions.
Marcelo,
The purpose is to be able to run guests that implement this change and not
require they revert to the older
; Zhang, Xiantao; Liu, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 26, 2012 at 10:58:46PM +, Auld, Will wrote:
Avi, Still working on your suggestions.
Marcelo,
The purpose is to be able to run guests that implement this change
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Thu, Sep 27, 2012 at 08:31:22AM -0300, Marcelo Tosatti wrote:
On Thu, Sep 27, 2012 at 12:50:16AM +, Auld, Will wrote:
Marcelo,
I think I am missing something. There should be no needed changes to
current algorithms
On Wed, Sep 19, 2012 at 05:44:46PM +, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00 2001
From: Will Auld will.a...@intel.com
Date: Wed, 12 Sep 2012 18:10:56 -0700
Subject: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
CPUID.7.0.EBX[1]=1 indicates
, Will
Cc: kvm@vger.kernel.org; Avi Kivity; Zhang, Xiantao
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 19, 2012 at 05:44:46PM +, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00
2001
From: Will Auld will.a...@intel.com
Date: Wed, 12
...@redhat.com]
Sent: Wednesday, September 26, 2012 2:35 PM
To: Auld, Will
Cc: kvm@vger.kernel.org; Avi Kivity; Zhang, Xiantao
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 19, 2012 at 05:44:46PM +, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da
, Will
Cc: kvm@vger.kernel.org; Avi Kivity; Zhang, Xiantao
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 19, 2012 at 05:44:46PM +, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00
2001
From: Will Auld will.a
, September 26, 2012 5:29 PM
To: Auld, Will
Cc: kvm@vger.kernel.org; Avi Kivity; Zhang, Xiantao; Liu, Jinsong
Subject: Re: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
On Wed, Sep 26, 2012 at 10:58:46PM +, Auld, Will wrote:
Avi, Still working on your suggestions.
Marcelo,
The purpose
On 09/19/2012 08:44 PM, Auld, Will wrote:
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00 2001
From: Will Auld will.a...@intel.com
Date: Wed, 12 Sep 2012 18:10:56 -0700
Subject: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR
On 09/19/2012 08:44 PM, Auld, Will wrote:
@@ -2241,6 +2244,13 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32
msr_index, u64 data)
}
ret = kvm_set_msr_common(vcpu, msr_index, data);
break;
+ case MSR_TSC_ADJUST:
+#define DUMMY 1
+
From 9982bb73460b05c1328068aae047b14b2294e2da Mon Sep 17 00:00:00 2001
From: Will Auld will.a...@intel.com
Date: Wed, 12 Sep 2012 18:10:56 -0700
Subject: [PATCH] Enabling IA32_TSC_ADJUST for guest VM
CPUID.7.0.EBX[1]=1 indicates IA32_TSC_ADJUST MSR 0x3b is supported
Basic design is to emulate
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