>>> On 20.02.18 at 12:58, wrote:
> The handling of RDTSCP for PV guests has been broken (AFAICT forever).
>
> To start with, RDTSCP is hidden from PV guests so the MSR_TSC_AUX path should
> be unreachable. However, this appears to be a "feature" of TSC_MODE_PVRDTSCP,
> and the emulator doesn't p
On Tue, Feb 20, 2018 at 04:37:51PM +, Andrew Cooper wrote:
> On 20/02/18 16:28, Roger Pau Monné wrote:
> > On Tue, Feb 20, 2018 at 11:58:42AM +, Andrew Cooper wrote:
> >> The handling of RDTSCP for PV guests has been broken (AFAICT forever).
> >>
> >> To start with, RDTSCP is hidden from PV
On 20/02/18 16:28, Roger Pau Monné wrote:
> On Tue, Feb 20, 2018 at 11:58:42AM +, Andrew Cooper wrote:
>> The handling of RDTSCP for PV guests has been broken (AFAICT forever).
>>
>> To start with, RDTSCP is hidden from PV guests so the MSR_TSC_AUX path should
>> be unreachable. However, this
On Tue, Feb 20, 2018 at 11:58:42AM +, Andrew Cooper wrote:
> The handling of RDTSCP for PV guests has been broken (AFAICT forever).
>
> To start with, RDTSCP is hidden from PV guests so the MSR_TSC_AUX path should
> be unreachable. However, this appears to be a "feature" of TSC_MODE_PVRDTSCP,
On Tue, Feb 20, 2018 at 11:58:42AM +, Andrew Cooper wrote:
> The handling of RDTSCP for PV guests has been broken (AFAICT forever).
>
> To start with, RDTSCP is hidden from PV guests so the MSR_TSC_AUX path should
> be unreachable. However, this appears to be a "feature" of TSC_MODE_PVRDTSCP,
