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Pawan Gupta facd226f7e x86/its: Add support for RSB stuffing mitigation
When retpoline mitigation is enabled for spectre-v2, enabling
call-depth-tracking and RSB stuffing also mitigates ITS. Add cmdline option
indirect_target_selection=stuff to allow enabling RSB stuffing mitigation.

When retpoline mitigation is not enabled, =stuff option is ignored, and
default mitigation for ITS is deployed.

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
2025-05-09 13:22:05 -07:00
..
2025-03-18 08:03:40 -07:00
2025-02-18 14:01:22 -07:00