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	cpuid
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	cpuid
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	bt $29, %edx 		# Test if long mode is supported.
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	bt $29, %edx 		# Test if long mode is supported.
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	jnc no_long_mode
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	jnc no_long_mode
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	# Load gdtr, idtr
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	# Load gdtr, idtr
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	lgdt gdtr_inst
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	lgdt bsp_bootstrap_gdtr
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	# Load idtr, but it contains mess - we should not get interrupt
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	# anyway
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	lidt idtr_inst
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	movl %cr0,%eax
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	movl %cr0,%eax
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	orl $0x1,%eax
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	orl $0x1,%eax
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	movl %eax,%cr0			# switch to protected mode
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	movl %eax,%cr0			# switch to protected mode
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	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
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	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
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	.fill 510,8,0
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	.fill 510,8,0
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	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
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	.quad ptl_1 + (PTL_WRITABLE | PTL_PRESENT)
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.global gdtr_inst
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.global gdtr_inst
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gdtr_inst:
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bsp_bootstrap_gdtr:
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	.word gdtselector(GDT_ITEMS)
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	.word gdtselector(GDT_ITEMS)
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	.long KA2PA(gdt)
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	.long KA2PA(gdt)
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.global idtr_inst
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.global ap_bootstrap_gdtr
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idtr_inst:
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ap_bootstrap_gdtr:
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	.word idtselector(IDT_ITEMS)
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	.word gdtselector(GDT_ITEMS)
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	.long KA2PA(idt)
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	.long KA2PA(gdt)
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