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This workaround is primarily implemented by the BIOS. However if the BIOS applies the workaround it will reserve a small piece of our DSM (which should be at the top, right below the WOPCM); we just need to keep that region reserved so that nothing else attempts to re-use it. v2 (Gustavo): - Check for NULL media_gt - Mask bits [5:0] to avoid potential issues in future platforms Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://lore.kernel.org/r/20231102124855.1940491-1-lucas.demarchi@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>