lkml.org 
[lkml]   [2013]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/4] x86, 32-bit: Drop new_cpu_data
Date
From: Borislav Petkov <bp@suse.de>

We copy it to boot_cpu_data anyway so use boot_cpu_data from the get-go.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/x86/include/asm/processor.h | 1 -
arch/x86/kernel/head_32.S | 17 ++++++++---------
arch/x86/kernel/setup.c | 3 ---
arch/x86/lguest/boot.c | 6 +++---
arch/x86/xen/enlighten.c | 8 ++++----
5 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index cf500543f6ff..984223f93293 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -149,7 +149,6 @@ struct cpuinfo_x86 {
* capabilities of CPUs
*/
extern struct cpuinfo_x86 boot_cpu_data;
-extern struct cpuinfo_x86 new_cpu_data;

extern struct tss_struct doublefault_tss;
extern __u32 cpu_caps_cleared[NCAPINTS];
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 0dba3598cf02..fe77ec1202a5 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -27,17 +27,16 @@
#define pa(X) ((X) - __PAGE_OFFSET)

/*
- * References to members of the new_cpu_data structure.
+ * References to members of the boot_cpu_data structure.
*/
-#define X86 new_cpu_data+CPUINFO_x86
-#define X86_VENDOR new_cpu_data+CPUINFO_x86_vendor
-#define X86_MODEL new_cpu_data+CPUINFO_x86_model
-#define X86_MASK new_cpu_data+CPUINFO_x86_mask
-#define X86_HARD_MATH new_cpu_data+CPUINFO_hard_math
-#define X86_CAPABILITY new_cpu_data+CPUINFO_x86_capability
-#define X86_VENDOR_ID new_cpu_data+CPUINFO_x86_vendor_id
-
+#define X86 boot_cpu_data+CPUINFO_x86
+#define X86_VENDOR boot_cpu_data+CPUINFO_x86_vendor
+#define X86_MODEL boot_cpu_data+CPUINFO_x86_model
+#define X86_MASK boot_cpu_data+CPUINFO_x86_mask
+#define X86_HARD_MATH boot_cpu_data+CPUINFO_hard_math
#define X86_CPUID boot_cpu_data+CPUINFO_cpuid_level
+#define X86_CAPABILITY boot_cpu_data+CPUINFO_x86_capability
+#define X86_VENDOR_ID boot_cpu_data+CPUINFO_x86_vendor_id

/*
* This is how much memory in addition to the memory covered up to
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 4f322b3eb078..548044f751fc 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -171,8 +171,6 @@ static struct resource bss_resource = {


#ifdef CONFIG_X86_32
-/* cpu data as detected by the assembly code in head.S */
-struct cpuinfo_x86 new_cpu_data __cpuinitdata = {0, 0, 0, 0, -1, 1, 0, 0, -1};
/* common cpu data for all cpus */
struct cpuinfo_x86 boot_cpu_data __read_mostly = {0, 0, 0, 0, -1, 1, 0, 0, -1};
EXPORT_SYMBOL(boot_cpu_data);
@@ -749,7 +747,6 @@ early_param("reservelow", parse_reservelow);
void __init setup_arch(char **cmdline_p)
{
#ifdef CONFIG_X86_32
- memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
visws_early_detect();

/*
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 1cbd89ca5569..bd222f2495f4 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1404,12 +1404,12 @@ __init void lguest_init(void)
* This is messy CPU setup stuff which the native boot code does before
* start_kernel, so we have to do, too:
*/
- cpu_detect(&new_cpu_data);
+ cpu_detect(&boot_cpu_data);
/* head.S usually sets up the first capability word, so do it here. */
- new_cpu_data.x86_capability[0] = cpuid_edx(1);
+ boot_cpu_data.x86_capability[0] = cpuid_edx(1);

/* Math is always hard! */
- new_cpu_data.hard_math = 1;
+ boot_cpu_data.hard_math = 1;

/* We don't have features. We have puppies! Puppies! */
#ifdef CONFIG_X86_MCE
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 8b4c56d85ca0..85871df3cc68 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1454,10 +1454,10 @@ asmlinkage void __init xen_start_kernel(void)

#ifdef CONFIG_X86_32
/* set up basic CPUID stuff */
- cpu_detect(&new_cpu_data);
- new_cpu_data.hard_math = 1;
- new_cpu_data.wp_works_ok = 1;
- new_cpu_data.x86_capability[0] = cpuid_edx(1);
+ cpu_detect(&boot_cpu_data);
+ boot_cpu_data.hard_math = 1;
+ boot_cpu_data.wp_works_ok = 1;
+ boot_cpu_data.x86_capability[0] = cpuid_edx(1);
#endif

/* Poke various useful things into boot_params */
--
1.8.1.2.422.g08c0e7f


\
 
 \ /
  Last update: 2013-02-03 18:01    [W:0.120 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site