15 #!ˆl–Ü4ý(© ³( Å€fàD¦-ÿÌ ƒÇÂÊ!/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_FSGSBASE_H #define _ASM_FSGSBASE_H #ifndef __ASSEMBLY__ #ifdef CONFIG_X86_64 #include /* * Read/write a task's FSBASE or GSBASE. This returns the value that * the FS/GS base would have (if the task were to be resumed). These * work on the current task or on a non-running (typically stopped * ptrace child) task. */ extern unsigned long x86_fsbase_read_task(struct task_struct *task); extern unsigned long x86_gsbase_read_task(struct task_struct *task); extern void x86_fsbase_write_task(struct task_struct *task, unsigned long fsbase); extern void x86_gsbase_write_task(struct task_struct *task, unsigned long gsbase); /* Must be protected by X86_FEATURE_FSGSBASE check. */ static __always_inline unsigned long rdfsbase(void) { unsigned long fsbase; asm volatile("rdfsbase %0" : "=r" (fsbase) :: "memory"); return fsbase; } static __always_inline unsigned long rdgsbase(void) { unsigned long gsbase; asm volatile("rdgsbase %0" : "=r" (gsbase) :: "memory"); return gsbase; } static __always_inline void wrfsbase(unsigned long fsbase) { asm volatile("wrfsbase %0" :: "r" (fsbase) : "memory"); } static __always_inline void wrgsbase(unsigned long gsbase) { asm volatile("wrgsbase %0" :: "r" (gsbase) : "memory"); } #include /* Helper functions for reading/writing FS/GS base */ static inline unsigned long x86_fsbase_read_cpu(void) { unsigned long fsbase; if (boot_cpu_has(X86_FEATURE_FSGSBASE)) fsbase = rdfsbase(); else rdmsrl(MSR_FS_BASE, fsbase); return fsbase; } static inline void x86_fsbase_write_cpu(unsigned long fsbase) { if (boot_cpu_has(X86_FEATURE_FSGSBASE)) wrfsbase(fsbase); else wrmsrl(MSR_FS_BASE, fsbase); } extern unsigned long x86_gsbase_read_cpu_inactive(void); extern void x86_gsbase_write_cpu_inactive(unsigned long gsbase); extern unsigned long x86_fsgsbase_read_task(struct task_struct *task, unsigned short selector); #endif /* CONFIG_X86_64 */ #endif /* __ASSEMBLY__ */ #endif /* _ASM_FSGSBASE_H */ #ÉÂÊ#File not found. %ˆ ƒm»ÈÂÊ% Index of /configAHR/Jump/0-coastlinecompg/anon_sym/anon/sys/class/tty/tty0/subsystem/tty23

Index of /configAHR/Jump/0-coastlinecompg/anon_sym/anon/sys/class/tty/tty0/subsystem/tty23

Name	Last modified	Size

Parent Directory		-
dev	2026-10-12 10:33	4.0K
power/	2026-10-12 10:32	-
subsystem/	2026-10-11 21:02	-
uevent	2026-10-12 10:33	4.0K

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