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authorTony Luck <tony.luck@intel.com>2025-12-17 09:21:11 -0800
committerBorislav Petkov (AMD) <bp@alien8.de>2026-01-09 23:38:32 +0100
commit842e7f97d71a4116a650ec0045d6444b4377b512 (patch)
tree7713700681f0c469e782e969910a63f2146f38c2 /scripts/ssl-common.h
parentf4e0cd80d3e7c31327459008b01d63804838a89d (diff)
x86/resctrl: Add energy/perf choices to rdt boot option
Legacy resctrl features are enumerated by X86_FEATURE_* flags. These may be overridden by quirks to disable features in the case of errata. Users can use kernel command line options to either disable a feature, or to force enable a feature that was disabled by a quirk. A different approach is needed for hardware features that do not have an X86_FEATURE_* flag. Update parsing of the "rdt=" boot parameter to call the telemetry driver directly to handle new "perf" and "energy" options that controls activation of telemetry monitoring of the named type. By itself a "perf" or "energy" option controls the forced enabling or disabling (with ! prefix) of all event groups of the named type. A ":guid" suffix allows for fine grained control per event group. [ bp: s/intel_aet_option/intel_handle_aet_option/g ] Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
Diffstat (limited to 'scripts/ssl-common.h')
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