diff options
| author | Ian Moffett <ian@osmora.org> | 2024-03-13 21:20:53 -0400 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2024-03-13 21:24:19 -0400 |
| commit | 73a209c0f7e350d819ce4b98374d4f2b83f7300d (patch) | |
| tree | c0cd32038fd4a9a3c1d36f86804d4a298c2e565a /sys | |
| parent | 10e2fc7e3c6a924923664cf2919393b7f7b37326 (diff) | |
kernel/amd64: cpu: Add fxsave/fxrstor helpers
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/include/arch/amd64/cpu.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/cpu.h b/sys/include/arch/amd64/cpu.h index 1968569..ee9bad7 100644 --- a/sys/include/arch/amd64/cpu.h +++ b/sys/include/arch/amd64/cpu.h @@ -138,6 +138,18 @@ amd64_write_cr4(uint64_t val) __ASMV("mov %0, %%cr4" :: "r" (val) : "memory"); } +static inline void +amd64_fxsave(void *area) +{ + __ASMV("fxsave (%0)" :: "r" (area) : "memory"); +} + +static inline void +amd64_fxrstor(void *area) +{ + __ASMV("fxrstor (%0)" :: "r" (area) : "memory"); +} + struct cpu_info *amd64_this_cpu(void); #endif /* !_AMD64_CPU_H_ */ |