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Rev 4156 Rev 4201
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#include <arch/boot/boot.h>
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#include <arch/boot/boot.h>
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#include <arch/boot/memmap.h>
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#include <arch/boot/memmap.h>
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#include <arch/mm/page.h>
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#include <arch/mm/page.h>
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#include <arch/pm.h>
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#include <arch/pm.h>
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#include <arch/cpuid.h>
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#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
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#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
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.section K_TEXT_START, "ax"
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.section K_TEXT_START, "ax"
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	multiboot_meeting_point:
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	multiboot_meeting_point:
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	movl %eax, grub_eax         # save parameters from GRUB
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	movl %eax, grub_eax         # save parameters from GRUB
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	movl %ebx, grub_ebx
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	movl %ebx, grub_ebx
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	xorl %eax, %eax
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	movl $(INTEL_CPUID_LEVEL), %eax
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	cpuid
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	cpuid
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	cmp $0x0, %eax              # any function > 0?
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	cmp $0x0, %eax              # any function > 0?
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	jbe pse_unsupported
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	jbe pse_unsupported
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	movl $0x1, %eax             # basic function code 1
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	movl $(INTEL_CPUID_STANDARD), %eax
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	cpuid
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	cpuid
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	bt $3, %edx                 # test if PSE is supported
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	bt $(INTEL_PSE), %edx
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	jc pse_supported
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	jc pse_supported
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	pse_unsupported:
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	pse_unsupported:
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		movl $pse_msg, %esi
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		movl $pse_msg, %esi
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		jmp error_halt
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		jmp error_halt
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	pse_supported:
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	pse_supported:
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	bt $(INTEL_SEP), %edx
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	jc sep_supported
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		movl $sep_msg, %esi
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		jmp error_halt
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	sep_supported:
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#include "vesa_prot.inc"
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#include "vesa_prot.inc"
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	# map kernel and turn paging on
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	# map kernel and turn paging on
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	call map_kernel
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	call map_kernel
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grub_ebx:
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grub_ebx:
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	.long 0
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	.long 0
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pse_msg:
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pse_msg:
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	.asciz "Page Size Extension not supported. System halted."
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	.asciz "Page Size Extension not supported. System halted."
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sep_msg:
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	.asciz "SYSENTER/SYSEXIT not supported. System halted."