commit e2604b49e8a8827e8bc5b61bc0c5a889e028fdad
author Borislav Petkov <bp@suse.de> Wed Mar 20 15:07:24 2013 +0100
committer H. Peter Anvin <hpa@zytor.com> Tue Apr 02 10:12:52 2013 -0700
tree 43f39236ba314d50e31c02364dcd6c88e7c6cb10
parent 65fc985b37dc241c4db7cd32adcbc989193fe3c8

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>

arch/x86/include/asm/cpufeature.h

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>

arch/x86/include/asm/processor.h

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 23c8081d..1e55e2d 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -92,7 +92,6 @@
 	char			hard_math;
 	char			rfu;
 	char			fdiv_bug;
-	char			f00f_bug;
 	char			coma_bug;
 	char			pad0;
 #else

arch/x86/kernel/cpu/intel.c

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 @@
 	 * 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");

arch/x86/kernel/cpu/proc.c

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 @@
 		   "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",

arch/x86/mm/fault.c

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 @@
 	/*
 	 * 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) {