Commit-ID: e2604b49e8a8827e8bc5b61bc0c5a889e028fdad Gitweb: http://git.kernel.org/tip/e2604b49e8a8827e8bc5b61bc0c5a889e028fdad Author: Borislav Petkov <b...@suse.de> AuthorDate: Wed, 20 Mar 2013 15:07:24 +0100 Committer: H. Peter Anvin <h...@zytor.com> CommitDate: Tue, 2 Apr 2013 10:12:52 -0700
x86, cpu: Convert F00F bug detection ... to using the new facility and drop the cpuinfo_x86 member. Signed-off-by: Borislav Petkov <b...@suse.de> Link: http://lkml.kernel.org/r/1363788448-31325-3-git-send-email...@alien8.de Signed-off-by: H. Peter Anvin <h...@zytor.com> --- arch/x86/include/asm/cpufeature.h | 2 ++ arch/x86/include/asm/processor.h | 1 - arch/x86/kernel/cpu/intel.c | 4 ++-- arch/x86/kernel/cpu/proc.c | 2 +- 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 16190ab..c0ad7e7 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 23c8081..1e55e2d 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 1905ce9..1acdd42 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 e280253..2d60b2b 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 2b97525..a1ce1fa 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) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
