diff options
| author | Borislav Petkov <bp@suse.de> | 2013-03-20 18:07:24 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2013-04-02 21:12:52 +0400 |
| commit | e2604b49e8a8827e8bc5b61bc0c5a889e028fdad (patch) | |
| tree | 43f39236ba314d50e31c02364dcd6c88e7c6cb10 /arch/x86 | |
| parent | 65fc985b37dc241c4db7cd32adcbc989193fe3c8 (diff) | |
| download | linux-e2604b49e8a8827e8bc5b61bc0c5a889e028fdad.tar.xz | |
x86, cpu: Convert F00F bug detection
... to using the new facility and drop the cpuinfo_x86 member.
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1363788448-31325-3-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/processor.h | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/intel.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/proc.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/fault.c | 2 |
5 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 16190abd8905..c0ad7e75815c 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -222,6 +222,8 @@ */ #define X86_BUG(x) (NCAPINTS*32 + (x)) +#define X86_BUG_F00F X86_BUG(0) /* Intel F00F */ + #if defined(__KERNEL__) && !defined(__ASSEMBLY__) #include <asm/asm.h> diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 23c8081d3870..1e55e2d543b5 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -92,7 +92,6 @@ struct cpuinfo_x86 { char hard_math; char rfu; char fdiv_bug; - char f00f_bug; char coma_bug; char pad0; #else diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 1905ce98bee0..1acdd42d86d1 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -209,11 +209,11 @@ static void __cpuinit intel_workarounds(struct cpuinfo_x86 *c) * system. * Note that the workaround only should be initialized once... */ - c->f00f_bug = 0; + clear_cpu_bug(c, X86_BUG_F00F); if (!paravirt_enabled() && c->x86 == 5) { static int f00f_workaround_enabled; - c->f00f_bug = 1; + set_cpu_bug(c, X86_BUG_F00F); if (!f00f_workaround_enabled) { trap_init_f00f_bug(); printk(KERN_NOTICE "Intel Pentium with F0 0F bug - workaround enabled.\n"); diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index e280253f6f94..2d60b2bec01c 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -35,7 +35,7 @@ static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c) "cpuid level\t: %d\n" "wp\t\t: %s\n", c->fdiv_bug ? "yes" : "no", - c->f00f_bug ? "yes" : "no", + static_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no", c->coma_bug ? "yes" : "no", c->hard_math ? "yes" : "no", c->hard_math ? "yes" : "no", diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 2b97525246d4..a1ce1facbacc 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -555,7 +555,7 @@ static int is_f00f_bug(struct pt_regs *regs, unsigned long address) /* * Pentium F0 0F C7 C8 bug workaround: */ - if (boot_cpu_data.f00f_bug) { + if (boot_cpu_has_bug(X86_BUG_F00F)) { nr = (address - idt_descr.address) >> 3; if (nr == 6) { |