kup.h (c441bfb5f2866de71e092c1b9d866a65978dfe1a) kup.h (cb2f1fb205cc20695fcaef84baf80d9d3e54c88b)
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_BOOK3S_64_KUP_H
3#define _ASM_POWERPC_BOOK3S_64_KUP_H
4
5#include <linux/const.h>
6#include <asm/reg.h>
7
8#define AMR_KUAP_BLOCK_READ UL(0x5455555555555555)

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393static inline void set_kuap(unsigned long value) { }
394
395static __always_inline void allow_user_access(void __user *to, const void __user *from,
396 unsigned long size, unsigned long dir)
397{ }
398
399#endif /* !CONFIG_PPC_KUAP */
400
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_BOOK3S_64_KUP_H
3#define _ASM_POWERPC_BOOK3S_64_KUP_H
4
5#include <linux/const.h>
6#include <asm/reg.h>
7
8#define AMR_KUAP_BLOCK_READ UL(0x5455555555555555)

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393static inline void set_kuap(unsigned long value) { }
394
395static __always_inline void allow_user_access(void __user *to, const void __user *from,
396 unsigned long size, unsigned long dir)
397{ }
398
399#endif /* !CONFIG_PPC_KUAP */
400
401static inline void prevent_user_access(void __user *to, const void __user *from,
402 unsigned long size, unsigned long dir)
401static inline void prevent_user_access(unsigned long dir)
403{
404 set_kuap(AMR_KUAP_BLOCKED);
405 if (static_branch_unlikely(&uaccess_flush_key))
406 do_uaccess_flush();
407}
408
409static inline unsigned long prevent_user_access_return(void)
410{

--- 18 unchanged lines hidden --- 		402{
403 set_kuap(AMR_KUAP_BLOCKED);
404 if (static_branch_unlikely(&uaccess_flush_key))
405 do_uaccess_flush();
406}
407
408static inline unsigned long prevent_user_access_return(void)
409{

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