x86, head_32: Give the 6 label a real name
authorBorislav Petkov <bp@suse.de>
Mon, 11 Feb 2013 14:22:18 +0000 (15:22 +0100)
committerH. Peter Anvin <hpa@linux.intel.com>
Tue, 12 Feb 2013 23:48:42 +0000 (15:48 -0800)
Jumping here we are about to enable paging so rename the label
accordingly.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1360592538-10643-5-git-send-email-bp@alien8.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/kernel/head_32.S

index 2e8532e7c80a6d927113da7736dad092e49eb534..3c3f58a0808fb544987f70372d3ac202d2c75086 100644 (file)
@@ -329,7 +329,7 @@ default_entry:
        pushfl
        popl %eax                       # get EFLAGS
        testl $X86_EFLAGS_ID,%eax       # did EFLAGS.ID remained set?
-       jz 6f                           # hw disallowed setting of ID bit
+       jz enable_paging                # hw disallowed setting of ID bit
                                        # which means no CPUID and no CR4
 
        xorl %eax,%eax
@@ -339,13 +339,13 @@ default_entry:
        movl $1,%eax
        cpuid
        andl $~1,%edx                   # Ignore CPUID.FPU
-       jz 6f                           # No flags or only CPUID.FPU = no CR4
+       jz enable_paging                # No flags or only CPUID.FPU = no CR4
 
        movl pa(mmu_cr4_features),%eax
        movl %eax,%cr4
 
        testb $X86_CR4_PAE, %al         # check if PAE is enabled
-       jz 6f
+       jz enable_paging
 
        /* Check if extended functions are implemented */
        movl $0x80000000, %eax
@@ -353,7 +353,7 @@ default_entry:
        /* Value must be in the range 0x80000001 to 0x8000ffff */
        subl $0x80000001, %eax
        cmpl $(0x8000ffff-0x80000001), %eax
-       ja 6f
+       ja enable_paging
 
        /* Clear bogus XD_DISABLE bits */
        call verify_cpu
@@ -362,7 +362,7 @@ default_entry:
        cpuid
        /* Execute Disable bit supported? */
        btl $(X86_FEATURE_NX & 31), %edx
-       jnc 6f
+       jnc enable_paging
 
        /* Setup EFER (Extended Feature Enable Register) */
        movl $MSR_EFER, %ecx
@@ -372,7 +372,7 @@ default_entry:
        /* Make changes effective */
        wrmsr
 
-6:
+enable_paging:
 
 /*
  * Enable paging