[PATCH v4 19/21] arm64: cpufeatures: Allow disabling of BTI from the command-line

Catalin Marinas catalin.marinas at arm.com
Sat Jan 23 09:24:06 EST 2021


On Mon, Jan 18, 2021 at 09:45:31AM +0000, Marc Zyngier wrote:
> In order to be able to disable BTI at runtime, whether it is
> for testing purposes, or to work around HW issues, let's add
> support for overriding the ID_AA64PFR1_EL1.BTI field.
> 
> This is further mapped on the arm64.nobti command-line alias.
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>

Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>



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