From 93a829e8e2c292f1d30155f64803101ca1cb7d3d Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 20 Mar 2013 15:07:25 +0100 Subject: x86, cpu: Convert FDIV bug detection ... to the new facility. Add a reference to the wikipedia article explaining the FDIV test we're doing here. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1363788448-31325-4-git-send-email-bp@alien8.de Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/bugs.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel/cpu/bugs.c') diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index af6455e3fcc9..c59635ecbbb8 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -59,7 +59,7 @@ static void __init check_fpu(void) * trap_init() enabled FXSR and company _before_ testing for FP * problems here. * - * Test for the divl bug.. + * Test for the divl bug: http://en.wikipedia.org/wiki/Fdiv_bug */ __asm__("fninit\n\t" "fldl %1\n\t" @@ -75,9 +75,10 @@ static void __init check_fpu(void) kernel_fpu_end(); - boot_cpu_data.fdiv_bug = fdiv_bug; - if (boot_cpu_data.fdiv_bug) + if (fdiv_bug) { + set_cpu_bug(&boot_cpu_data, X86_BUG_FDIV); pr_warn("Hmm, FPU with FDIV bug\n"); + } } /* -- cgit