That message isn't at all clear -- what does "Legacy x87" even mean?
Clarify it. If there's no FPU, say "x86/fpu: No FPU detected". If there's an FPU that doesn't have XSAVE, say "x86/fpu: x87 FPU will use FSAVE|FXSAVE". Signed-off-by: Andy Lutomirski <[email protected]> --- arch/x86/kernel/fpu/xstate.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 1d7770447b3e..1691311e5b23 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -705,8 +705,14 @@ void __init fpu__init_system_xstate(void) WARN_ON_FPU(!on_boot_cpu); on_boot_cpu = 0; + if (!boot_cpu_has(X86_FEATURE_FPU)) { + pr_info("x86/fpu: No FPU detected.\n"); + return; + } + if (!boot_cpu_has(X86_FEATURE_XSAVE)) { - pr_info("x86/fpu: Legacy x87 FPU detected.\n"); + pr_info("x86/fpu: x87 FPU will use %s.\n", + boot_cpu_has(X86_FEATURE_FXSR) ? "FXSAVE" : "FSAVE"); return; } -- 2.9.3
