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| // SPDX-License-Identifier: GPL-2.0-only
| #ifndef __SELFTESTS_X86_HELPERS_H
| #define __SELFTESTS_X86_HELPERS_H
|
| #include <asm/processor-flags.h>
|
| static inline unsigned long get_eflags(void)
| {
| unsigned long eflags;
|
| asm volatile (
| #ifdef __x86_64__
| "subq $128, %%rsp\n\t"
| "pushfq\n\t"
| "popq %0\n\t"
| "addq $128, %%rsp"
| #else
| "pushfl\n\t"
| "popl %0"
| #endif
| : "=r" (eflags) :: "memory");
|
| return eflags;
| }
|
| static inline void set_eflags(unsigned long eflags)
| {
| asm volatile (
| #ifdef __x86_64__
| "subq $128, %%rsp\n\t"
| "pushq %0\n\t"
| "popfq\n\t"
| "addq $128, %%rsp"
| #else
| "pushl %0\n\t"
| "popfl"
| #endif
| :: "r" (eflags) : "flags", "memory");
| }
|
| #endif /* __SELFTESTS_X86_HELPERS_H */
|
|
