diff options
Diffstat (limited to 'arch/x86/realmode/rm')
| -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 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/wakeup.h | 2 | ||||
| -rw-r--r-- | arch/x86/realmode/rm/wakeup_asm.S | 18 |
6 files changed, 15 insertions, 27 deletions
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index b2d534cab25..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 \ - $(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> diff --git a/arch/x86/realmode/rm/wakeup.h b/arch/x86/realmode/rm/wakeup.h index 9317e0042f2..7dd86a419f5 100644 --- a/arch/x86/realmode/rm/wakeup.h +++ b/arch/x86/realmode/rm/wakeup.h @@ -36,5 +36,7 @@ extern struct wakeup_header wakeup_header; /* Wakeup behavior bits */ #define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0 +#define WAKEUP_BEHAVIOR_RESTORE_CR4 1 +#define WAKEUP_BEHAVIOR_RESTORE_EFER 2 #endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */ diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S index 8905166b0bb..9e7e14797a7 100644 --- a/arch/x86/realmode/rm/wakeup_asm.S +++ b/arch/x86/realmode/rm/wakeup_asm.S @@ -75,7 +75,7 @@ ENTRY(wakeup_start) lidtl wakeup_idt /* Clear the EFLAGS */ - pushl $0 + pushl $0 popfl /* Check header signature... */ @@ -93,8 +93,8 @@ ENTRY(wakeup_start) /* Restore MISC_ENABLE before entering protected mode, in case BIOS decided to clear XD_DISABLE during S3. */ - movl pmode_behavior, %eax - btl $WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE, %eax + movl pmode_behavior, %edi + btl $WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE, %edi jnc 1f movl pmode_misc_en, %eax @@ -110,15 +110,15 @@ ENTRY(wakeup_start) movl pmode_cr3, %eax movl %eax, %cr3 - movl pmode_cr4, %ecx - jecxz 1f - movl %ecx, %cr4 + btl $WAKEUP_BEHAVIOR_RESTORE_CR4, %edi + jnc 1f + movl pmode_cr4, %eax + movl %eax, %cr4 1: + btl $WAKEUP_BEHAVIOR_RESTORE_EFER, %edi + jnc 1f movl pmode_efer, %eax movl pmode_efer + 4, %edx - movl %eax, %ecx - orl %edx, %ecx - jz 1f movl $MSR_EFER, %ecx wrmsr 1: |