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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 */
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