2021-07-12 19:01:19 +00:00
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <asm/kup.h>
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2021-07-20 16:20:39 +00:00
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#include <asm/smp.h>
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2021-07-12 19:01:19 +00:00
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2021-07-20 16:20:39 +00:00
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struct static_key_false disable_kuep_key;
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2021-07-12 19:01:19 +00:00
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2021-07-20 16:20:39 +00:00
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void setup_kuep(bool disabled)
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{
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2021-07-20 16:20:39 +00:00
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if (!disabled)
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kuep_lock();
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2021-07-12 19:01:19 +00:00
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2021-07-20 16:20:39 +00:00
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if (smp_processor_id() != boot_cpuid)
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return;
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2021-07-12 19:01:19 +00:00
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2021-07-20 16:20:39 +00:00
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if (disabled)
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static_branch_enable(&disable_kuep_key);
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else
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pr_info("Activating Kernel Userspace Execution Prevention\n");
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2021-07-12 19:01:19 +00:00
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}
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