Files
linux/tools
Len Brown 19476a592b tools/power turbostat: Validate RAPL MSRs for AWS Nitro Hypervisor
Even though the platform->plat_rapl_msrs enumeration may be accurate,
a VM, such as AWS Nitro Hypervisor, may deny access to the underlying MSRs.

Probe if PKG_ENERGY is readable and non-zero.
If no, ignore all RAPL MSRs.

Reported-by: Emily Ehlert <ehemily@amazon.de>
Tested-by: Emily Ehlert <ehemily@amazon.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2025-12-02 16:11:14 -05:00
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