On Mon, 2015-08-17 at 15:04 +0300, Alexander Shishkin wrote:
> Huaitong Han writes:
>
> > rdmsrl_safe does not lead to #GP in native kernel although CPU
> > does not support INTEL_PT, but if KVM does not support INTEL_PT,
> > the codes cannot understand MSR_IA32_RTIT_CTL, and the warning
> > is
Huaitong Han writes:
> rdmsrl_safe does not lead to #GP in native kernel although CPU
> does not support INTEL_PT, but if KVM does not support INTEL_PT,
> the codes cannot understand MSR_IA32_RTIT_CTL, and the warning
> is produced.
"the codes"?
> If KVM does not support INTEL_PT, its guest
Huaitong Han huaitong@intel.com writes:
rdmsrl_safe does not lead to #GP in native kernel although CPU
does not support INTEL_PT, but if KVM does not support INTEL_PT,
the codes cannot understand MSR_IA32_RTIT_CTL, and the warning
is produced.
the codes?
If KVM does not support
On Mon, 2015-08-17 at 15:04 +0300, Alexander Shishkin wrote:
Huaitong Han huaitong@intel.com writes:
rdmsrl_safe does not lead to #GP in native kernel although CPU
does not support INTEL_PT, but if KVM does not support INTEL_PT,
the codes cannot understand MSR_IA32_RTIT_CTL, and the
rdmsrl_safe does not lead to #GP in native kernel although CPU
does not support INTEL_PT, but if KVM does not support INTEL_PT,
the codes cannot understand MSR_IA32_RTIT_CTL, and the warning
is produced.
If KVM does not support INTEL_PT, its guest CPUID also does not.
So test_cpu_cap is added
rdmsrl_safe does not lead to #GP in native kernel although CPU
does not support INTEL_PT, but if KVM does not support INTEL_PT,
the codes cannot understand MSR_IA32_RTIT_CTL, and the warning
is produced.
If KVM does not support INTEL_PT, its guest CPUID also does not.
So test_cpu_cap is added
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