On Tue, Oct 25, 2016 at 01:50:01PM -0500, Wei Huang wrote:
>
>
> On 10/25/2016 12:56 PM, Andrew Jones wrote:
>
> >>
> >> Compared with V7, my proposed solution above isn't so different as we
> >> thought. Details below. In V7,
> >>
> >> * has_pmu=off by default. It is turned on in target-arm/cpu
On 10/25/2016 12:56 PM, Andrew Jones wrote:
>>
>> Compared with V7, my proposed solution above isn't so different as we
>> thought. Details below. In V7,
>>
>> * has_pmu=off by default. It is turned on in target-arm/cpu.c (see
>> below). Apparently it is turned on only under KVM mode; UNDER TCG,
On Tue, Oct 25, 2016 at 11:55:05AM -0500, Wei Huang wrote:
>
>
> On 10/25/2016 10:26 AM, Peter Maydell wrote:
> > On 25 October 2016 at 08:33, Andrew Jones wrote:
> >> On Mon, Oct 24, 2016 at 11:39:59PM -0500, Wei Huang wrote:
> > V6->V7:
> > * change has_pmu variable type from OnOffAu
On 10/25/2016 10:59 AM, Peter Maydell wrote:
> On 25 October 2016 at 16:26, Peter Maydell wrote:
>> On 25 October 2016 at 08:33, Andrew Jones wrote:
>>> Yes, I prefer it to not being able to easily switch a command line from
>>> KVM to TCG. Granted, right now we mostly need to run with -cpu hos
On 10/25/2016 10:26 AM, Peter Maydell wrote:
> On 25 October 2016 at 08:33, Andrew Jones wrote:
>> On Mon, Oct 24, 2016 at 11:39:59PM -0500, Wei Huang wrote:
> V6->V7:
> * change has_pmu variable type from OnOffAuto to Boolean
> * only add "pmu" property to CPU under kvm mode, de
On 25 October 2016 at 16:26, Peter Maydell wrote:
> On 25 October 2016 at 08:33, Andrew Jones wrote:
>> Yes, I prefer it to not being able to easily switch a command line from
>> KVM to TCG. Granted, right now we mostly need to run with -cpu host for
>> KVM, which also needs to be switched for TC
On 25 October 2016 at 08:33, Andrew Jones wrote:
> On Mon, Oct 24, 2016 at 11:39:59PM -0500, Wei Huang wrote:
>> >> V6->V7:
>> >> * change has_pmu variable type from OnOffAuto to Boolean
>> >> * only add "pmu" property to CPU under kvm mode, default ON
>> >
>> > Hmm, if we don't allow the prop
On Mon, Oct 24, 2016 at 11:39:59PM -0500, Wei Huang wrote:
> >> V6->V7:
> >> * change has_pmu variable type from OnOffAuto to Boolean
> >> * only add "pmu" property to CPU under kvm mode, default ON
> >
> > Hmm, if we don't allow the property with TCG then switching a guest from
> > KVM to TCG
On 10/24/2016 03:49 AM, Andrew Jones wrote:
> On Fri, Oct 21, 2016 at 05:53:00PM -0400, Wei Huang wrote:
>> This patchset adds a pmu=[on/off] option to enable/disable vPMU support
>> for guest VM. There are several reasons to justify this option. First,
>> vPMU can be problematic for cross-migra
On Fri, Oct 21, 2016 at 05:53:00PM -0400, Wei Huang wrote:
> This patchset adds a pmu=[on/off] option to enable/disable vPMU support
> for guest VM. There are several reasons to justify this option. First,
> vPMU can be problematic for cross-migration between different SoC as perf
> counters are a
This patchset adds a pmu=[on/off] option to enable/disable vPMU support
for guest VM. There are several reasons to justify this option. First,
vPMU can be problematic for cross-migration between different SoC as perf
counters are architecture-dependent. It is more flexible to have an option
to tur
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