diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kernel/fpu/regset.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c index 783f84dfcd46..ccbe25f6627d 100644 --- a/arch/x86/kernel/fpu/regset.c +++ b/arch/x86/kernel/fpu/regset.c @@ -33,13 +33,18 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset, { struct fpu *fpu = &target->thread.fpu; - if (!boot_cpu_has(X86_FEATURE_FXSR)) + if (!cpu_feature_enabled(X86_FEATURE_FXSR)) return -ENODEV; fpu__prepare_read(fpu); - fpstate_sanitize_xstate(fpu); - return membuf_write(&to, &fpu->state.fxsave, sizeof(struct fxregs_state)); + if (!use_xsave()) { + return membuf_write(&to, &fpu->state.fxsave, + sizeof(fpu->state.fxsave)); + } + + copy_xstate_to_uabi_buf(to, &fpu->state.xsave, XSTATE_COPY_FX); + return 0; } int xfpregs_set(struct task_struct *target, const struct user_regset *regset, |