osfmk/x86_64/idt64.s

87 	push	%rax				;\
88 	leaq	func(%rip), %rax		;\
89 	movq	%rax, 8(%rsp)			;\
90 	pop	%rax
101 	push	%rax				;\
103 	pop	%rax				;\
186 	mov	%rax, R64_RAX(%r15)
202 	mov	%cr2, %rax
203 	mov	%rax, R64_CR2(%r15)
215 	pushq	%rax
216 	leaq	HNDL_ALLTRAPS(%rip), %rax
217 	movq	%rax, ISF64_TRAPFN+8(%rsp)
218 	popq	%rax
256 	mov	%cr2, %rax
339 	movq	TH_PCB_IDS(%rdx),%rax	/* Obtain this thread's debug state */
341 	test	%rax, %rax		/* Is there a debug register context? */
345 	movl	DS_DR0(%rax), %ecx	/* If so, load the 32 bit DRs */
347 	movl	DS_DR1(%rax), %ecx
349 	movl	DS_DR2(%rax), %ecx
351 	movl	DS_DR3(%rax), %ecx
353 	movl	DS_DR7(%rax), %ecx
357 	mov	DS64_DR0(%rax), %rcx	/* Load the full width DRs*/
359 	mov	DS64_DR1(%rax), %rcx
361 	mov	DS64_DR2(%rax), %rcx
363 	mov	DS64_DR3(%rax), %rcx
365 	mov	DS64_DR7(%rax), %rcx
381 	mov	%gs:CPU_DR7, %rax	/* Is there a debug control register?*/
382 	cmp	$0, %rax
384 	mov	%rax, %dr7		/* Set DR7 */
492 	mov	R64_RAX(%r15), %rax
531  * These are entered via a syscall interrupt. The system call number in %rax
541 	pushq	%rax			/* save system call number */
549 	pushq	%rax			/* save system call number */
557 	pushq	%rax			/* save system call number */
579 	mov	%rax, ISF64_ERR(%rsp)		/* err/rax - syscall code */
616 	push	%rax			/* err/eax - syscall code */
626 	push	%rax			/* save %rax temporarily */
629 	pop	%rax			/* restore %rax, swapgs, and continue */
652 	push	%rax			/* save %rax temporarily */
653 	lea	EXT(idt64_sysenter)(%rip), %rax
654 	cmp	%rax, ISF64_RIP+8(%rsp)
655 	pop	%rax
676 	push	%rax
677 	leaq	EXT(idt64_syscall)(%rip), %rax
678 	cmp	%rax, ISF64_RIP+8(%rsp)
679 	pop	%rax
715 	push	%rax
718 	mov	ISF64_SS+8(%rsp), %rax
719 	mov	%rax, ISF64_SS(%rcx)
720 	mov	ISF64_RSP+8(%rsp), %rax
721 	mov	%rax, ISF64_RSP(%rcx)
722 	mov	ISF64_RFLAGS+8(%rsp), %rax
723 	mov	%rax, ISF64_RFLAGS(%rcx)
724 	mov	ISF64_CS+8(%rsp), %rax
725 	mov	%rax, ISF64_CS(%rcx)
726 	mov	ISF64_RIP+8(%rsp), %rax
727 	mov	%rax, ISF64_RIP(%rcx)
728 	mov	ISF64_ERR+8(%rsp), %rax
729 	mov	%rax, ISF64_ERR(%rcx)
730 	mov	ISF64_TRAPFN+8(%rsp), %rax
731 	mov	%rax, ISF64_TRAPFN(%rcx)
732 	mov	ISF64_TRAPNO+8(%rsp), %rax
733 	mov	%rax, ISF64_TRAPNO(%rcx)
734 	pop	%rax
741 	push	%rax
742 	leaq	EXT(ret32_iret)(%rip), %rax
743 	cmp	%rax, 8+ISF64_RIP(%rsp)
745 	leaq	EXT(ret64_iret)(%rip), %rax
746 	cmp	%rax, 8+ISF64_RIP(%rsp)
748 	leaq	EXT(ret32_set_ds)(%rip), %rax
749 	cmp	%rax, 8+ISF64_RIP(%rsp)
751 	leaq	EXT(ret32_set_es)(%rip), %rax
752 	cmp	%rax, 8+ISF64_RIP(%rsp)
754 	leaq	EXT(ret32_set_fs)(%rip), %rax
755 	cmp	%rax, 8+ISF64_RIP(%rsp)
757 	leaq	EXT(ret32_set_gs)(%rip), %rax
758 	cmp	%rax, 8+ISF64_RIP(%rsp)
767 	 * Note: %rax has been pushed on stack.
783 	movq	%gs:CPU_UBER_ISF, %rax		/* PCB stack addr */
784 	subq	%rsp, %rax
785 	cmpq	$(PAGE_SIZE), %rax		/* current stack in PCB? */
787 	pop	%rax				/*  - no, restore %rax */
794 	movq	%gs:CPU_KERNEL_STACK, %rax
795 	xchgq	%rax, %rsp
796 	pushq	8+ISF64_SS(%rax)
797 	pushq	8+ISF64_RSP(%rax)
798 	pushq	8+ISF64_RFLAGS(%rax)
799 	pushq	8+ISF64_CS(%rax)
800 	pushq	8+ISF64_RIP(%rax)
801 	pushq	8+ISF64_ERR(%rax)
802 	pushq	8+ISF64_TRAPFN(%rax)
803 	pushq	8+ISF64_TRAPNO(%rax)
804 	movq	(%rax), %rax
812  *  (rax saved above, which is immediately popped)
840 	pop	%rax			/* recover saved %rax */
841 	mov	%rax, ISF64_RIP(%rsp)	/* save rax (we don`t need saved rip) */
842 	mov	ISF64_RSP(%rsp), %rax
843 	xchg	%rax, %rsp		/* switch to PCB stack */
844 	push	ISF64_ERR(%rax)
845 	push	ISF64_TRAPFN(%rax)
846 	push	ISF64_TRAPNO(%rax)
847 	mov	ISF64_RIP(%rax), %rax	/* restore rax */
855  *  (rax saved above, which is immediately popped)
876 	pop	%rax			/* toss saved %rax from stack */
877 	mov	ISF64_TRAPNO(%rsp), %rax
881 	mov	%rax,R64_TRAPNO(%rsp)
925 	push	%rax				/* save RAX to ISF64_ERR */
956 	mov	%gs:CPU_KERNEL_STACK, %rax
957 	xor	%rcx, %rax
958 	and	EXT(kernel_stack_mask)(%rip), %rax
959 	test	%rax, %rax		/* are we on the kernel stack? */
962 	mov	%gs:CPU_INT_STACK_TOP, %rax
963 	dec	%rax			/* intr stack top is byte above max */
964 	xor	%rcx, %rax
965 	and	EXT(kernel_stack_mask)(%rip), %rax
966 	test	%rax, %rax		/* are we on the interrupt stack? */
989 	lea	HNDL_ALLINTRS(%rip), %rax
990 	push	%rax				/* trapfn allintrs */
992 	mov	ISF64_ERR(%rcx), %rax
1101 	movq	%gs:CPU_KERNEL_STACK,%rax
1103 	xorq	%rax,%rcx
1137 	mov	%cr0,%rax		/* get cr0 */
1139 	mov	%rax,%cr0		/* set cr0 */
1170 	movq	%gs:CPU_ACTIVE_THREAD,%rax
1171 	movq	TH_PCB_FPS(%rax),%rax	/* get pcb's ifps */
1172 	cmpq	$0,%rax			/* Is there a context */
1174 	movl	FP_VALID(%rax),%eax	/* Load fp_valid */
1180 	mov	%cr0,%rax		/* get cr0 */
1182 	mov	%rax,%cr0		/* set cr0 */
1378 	CCALL3(i386_exception, $(EXC_SYSCALL), %rax, $1)