On Tue, Feb 20, 2018 at 05:42:06PM +, Andrew Cooper wrote:
> On 20/02/18 17:03, Wei Liu wrote:
> > On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
> >> There are many problems with MSR_TSC_AUX handling.
> >>
> >> To being with, the RDPID instruction reads MSR_TSC_AUX, but it is
On Tue, Feb 20, 2018 at 06:28:15PM +, Andrew Cooper wrote:
> On 20/02/18 17:35, Roger Pau Monné wrote:
> > On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
> >> There are many problems with MSR_TSC_AUX handling.
> >>
> >> To being with, the RDPID instruction reads MSR_TSC_AUX,
On 20/02/18 17:35, Roger Pau Monné wrote:
> On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
>> There are many problems with MSR_TSC_AUX handling.
>>
>> To being with, the RDPID instruction reads MSR_TSC_AUX, but it is only the
>> RDTSCP feature which enumerates the MSR. Therefore,
On 20/02/18 17:03, Wei Liu wrote:
> On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
>> There are many problems with MSR_TSC_AUX handling.
>>
>> To being with, the RDPID instruction reads MSR_TSC_AUX, but it is only the
> ^
> begin
>
>> RDTSCP feature which enumerates the
On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
> There are many problems with MSR_TSC_AUX handling.
>
> To being with, the RDPID instruction reads MSR_TSC_AUX, but it is only the
> RDTSCP feature which enumerates the MSR. Therefore, RDPID functionally
> depends on RDTSCP.
>
>
On Tue, Feb 20, 2018 at 11:58:43AM +, Andrew Cooper wrote:
> There are many problems with MSR_TSC_AUX handling.
>
> To being with, the RDPID instruction reads MSR_TSC_AUX, but it is only the
^
begin
> RDTSCP feature which enumerates the MSR. Therefore, RDPID functionally
> depends
There are many problems with MSR_TSC_AUX handling.
To being with, the RDPID instruction reads MSR_TSC_AUX, but it is only the
RDTSCP feature which enumerates the MSR. Therefore, RDPID functionally
depends on RDTSCP.
For PV guests, we hide RDTSCP but advertise RDPID. We also silently drop
