// SPDX-License-Identifier: GPL-2.0-or-later

#include <asm/kup.h>
#include <asm/smp.h>

struct static_key_false disable_kuap_key;
EXPORT_SYMBOL(disable_kuap_key);

void __init setup_kuap(bool disabled)
{
	if (!disabled)
		kuap_update_sr(mfsr(0) | SR_KS, 0, TASK_SIZE);

	if (smp_processor_id() != boot_cpuid)
		return;

	if (disabled)
		static_branch_enable(&disable_kuap_key);
	else
		pr_info("Activating Kernel Userspace Access Protection\n");
}