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33 lines
594 B
33 lines
594 B
// SPDX-License-Identifier: GPL-2.0-or-later |
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#include <asm/kup.h> |
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#include <asm/smp.h> |
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struct static_key_false disable_kuap_key; |
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EXPORT_SYMBOL(disable_kuap_key); |
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void kuap_lock_all_ool(void) |
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{ |
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kuap_lock_all(); |
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} |
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EXPORT_SYMBOL(kuap_lock_all_ool); |
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void kuap_unlock_all_ool(void) |
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{ |
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kuap_unlock_all(); |
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} |
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EXPORT_SYMBOL(kuap_unlock_all_ool); |
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void setup_kuap(bool disabled) |
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{ |
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if (!disabled) |
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kuap_lock_all_ool(); |
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if (smp_processor_id() != boot_cpuid) |
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return; |
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if (disabled) |
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static_branch_enable(&disable_kuap_key); |
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else |
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pr_info("Activating Kernel Userspace Access Protection\n"); |
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}
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