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// SPDX-License-Identifier: GPL-2.0-or-later
#include <asm/kup.h>
#include <asm/smp.h>
void setup_kuap(bool disabled)
{
if (!disabled) {
update_user_segments(mfsr(0) | SR_KS);
isync(); /* Context sync required after mtsr() */
init_mm.context.sr0 |= SR_KS;
current->thread.sr0 |= SR_KS;
}
if (smp_processor_id() != boot_cpuid)
return;
if (disabled)
cur_cpu_spec->mmu_features &= ~MMU_FTR_KUAP;
else
pr_info("Activating Kernel Userspace Access Protection\n");
}