diff options
Diffstat (limited to 'arch/x86/realmode')
| -rw-r--r-- | arch/x86/realmode/init.c | 26 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/Makefile | 19 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/reboot.S | 1 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/trampoline_32.S | 1 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/trampoline_64.S | 1 |
5 files changed, 16 insertions, 32 deletions
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index a44f457e70a..bad628a620c 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -29,12 +29,10 @@ void __init reserve_real_mode(void) void __init setup_real_mode(void) { u16 real_mode_seg; - u32 *rel; + const u32 *rel; u32 count; - u32 *ptr; - u16 *seg; - int i; unsigned char *base; + unsigned long phys_base; struct trampoline_header *trampoline_header; size_t size = PAGE_ALIGN(real_mode_blob_end - real_mode_blob); #ifdef CONFIG_X86_64 @@ -46,23 +44,23 @@ void __init setup_real_mode(void) memcpy(base, real_mode_blob, size); - real_mode_seg = __pa(base) >> 4; + phys_base = __pa(base); + real_mode_seg = phys_base >> 4; + rel = (u32 *) real_mode_relocs; /* 16-bit segment relocations. */ - count = rel[0]; - rel = &rel[1]; - for (i = 0; i < count; i++) { - seg = (u16 *) (base + rel[i]); + count = *rel++; + while (count--) { + u16 *seg = (u16 *) (base + *rel++); *seg = real_mode_seg; } /* 32-bit linear relocations. */ - count = rel[i]; - rel = &rel[i + 1]; - for (i = 0; i < count; i++) { - ptr = (u32 *) (base + rel[i]); - *ptr += __pa(base); + count = *rel++; + while (count--) { + u32 *ptr = (u32 *) (base + *rel++); + *ptr += phys_base; } /* Must be perfomed *after* relocation. */ diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 88692871823..7c0d7be176a 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -52,8 +52,9 @@ $(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE OBJCOPYFLAGS_realmode.bin := -O binary targets += realmode.bin -$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs +$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs FORCE $(call if_changed,objcopy) + @: quiet_cmd_relocs = RELOCS $@ cmd_relocs = arch/x86/tools/relocs --realmode $< > $@ @@ -64,19 +65,7 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE # --------------------------------------------------------------------------- -# How to compile the 16-bit code. Note we always compile for -march=i386, -# that way we can complain to the user if the CPU is insufficient. -KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \ - -I$(srctree)/arch/x86/boot \ - -DDISABLE_BRANCH_PROFILING \ - -Wall -Wstrict-prototypes \ - -march=i386 -mregparm=3 \ - -include $(srctree)/$(src)/../../boot/code16gcc.h \ - -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ - $(call cc-option, -ffreestanding) \ - $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) +KBUILD_CFLAGS := $(LINUXINCLUDE) $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \ + -I$(srctree)/arch/x86/boot KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ GCOV_PROFILE := n diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S index f932ea61d1c..d66c607bdc5 100644 --- a/arch/x86/realmode/rm/reboot.S +++ b/arch/x86/realmode/rm/reboot.S @@ -1,5 +1,4 @@ #include <linux/linkage.h> -#include <linux/init.h> #include <asm/segment.h> #include <asm/page_types.h> #include <asm/processor-flags.h> diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S index c1b2791183e..48ddd76bc4c 100644 --- a/arch/x86/realmode/rm/trampoline_32.S +++ b/arch/x86/realmode/rm/trampoline_32.S @@ -20,7 +20,6 @@ */ #include <linux/linkage.h> -#include <linux/init.h> #include <asm/segment.h> #include <asm/page_types.h> #include "realmode.h" diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S index bb360dc39d2..dac7b20d2f9 100644 --- a/arch/x86/realmode/rm/trampoline_64.S +++ b/arch/x86/realmode/rm/trampoline_64.S @@ -25,7 +25,6 @@ */ #include <linux/linkage.h> -#include <linux/init.h> #include <asm/pgtable_types.h> #include <asm/page_types.h> #include <asm/msr.h> |