Hi all,
I recently did some modification in the cpuidle core and the patches
were merge to linux-next.
Someone reported a problem with the intel_idle cpuidle driver.
I tried to reproduce the problem with kvm but the kernel fails to
intialize the driver because of intel_intel_init function fails in the
processor probe.
After digging a bit, I found it fails at:
drivers/idle/intel_idle.c
static int intel_idle_probe(void)
{
...
if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF)
return -ENODEV;
^^^^^
...
}
I assumed the virtualized processor does not support this, so I
specified the "-cpu host" because the host was running the intel_idle
driver. But the driver still fails in kvm.
I was wondering why that happens ? Does anyone have an idea of this
problem ?
Thanks in advance
-- Daniel
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