x86/entry/entry_32.S

152 	movl	%cr3, %eax
153 	testl	$PTI_SWITCH_MASK, %eax
259 	pushl	%eax
261 	movl	5*4(%esp), %eax		# (modified) regs->sp
264 	movl	%ecx, %ss:-1*4(%eax)
268 	movl	%ecx, %ss:-2*4(%eax)
271 	movl	%ecx, %ss:-3*4(%eax)
273 	movl	1*4(%esp), %ecx		# eax
274 	movl	%ecx, %ss:-4*4(%eax)
277 	lea	-4*4(%eax), %esp
278 	popl	%eax
282 .macro SAVE_ALL pt_regs_ax=%eax switch_stacks=0 skip_gs=0 unwind_espfix=0
289 	pushl	%eax
290 	movl	$(__KERNEL_PERCPU), %eax
291 	movl	%eax, %fs
295 	popl	%eax
343 	popl	%eax
396 	movl	PT_EFLAGS(%esp), %eax		# mix EFLAGS, SS and CS
404 	andl	$(X86_EFLAGS_VM | (SEGMENT_TI_MASK << 8) | SEGMENT_RPL_MASK), %eax
405 	cmpl	$((SEGMENT_LDT << 8) | USER_RPL), %eax
420 	mov	PT_OLDESP(%esp), %eax		/* load userspace esp */
422 	sub	%eax, %edx			/* offset (low word is 0) */
427 	pushl	%eax				/* new kernel esp */
454 	SWITCH_TO_KERNEL_CR3 scratch_reg=%eax
570 	testl	$PTI_SWITCH_MASK, %eax
694 	SWITCH_TO_USER_CR3 scratch_reg=%eax
728 	movl	%esp, %eax
777 	movl	%esp, TASK_threadsp(%eax)
817 	pushl	%eax
819 	popl	%eax
842 	movl    %esp, %eax
847 1:	movl	%edi, %eax
908 	pushl	%eax
910 	SWITCH_TO_KERNEL_CR3 scratch_reg=%eax
911 	popl	%eax
923 	pushl	%eax			/* pt_regs->orig_ax */
949 	movl	%esp, %eax
951 	testl	%eax, %eax
964 	movl	PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %eax
965 	subl	$(2*4), %eax
970 	movl	%edi, (%eax)
971 	movl	%esi, 4(%eax)
986 	movl	%eax, %esp
989 	SWITCH_TO_USER_CR3 scratch_reg=%eax
999 	popl	%eax
1052 	pushl	%eax			/* pt_regs->orig_ax */
1056 	movl	%esp, %eax
1066 	SWITCH_TO_USER_CR3 scratch_reg=%eax
1092 	pushl	%eax
1093 	SWITCH_TO_USER_CR3 scratch_reg=%eax
1094 	popl	%eax
1127 	shl	$16, %eax
1130 	addl	%esp, %eax			/* the adjusted stack pointer */
1132 	pushl	%eax
1140 	movl	%ss, %eax
1165 	movl	%esp, %eax			# pt_regs pointer
1170 	movl	PT_EFLAGS(%esp), %eax		# mix EFLAGS and CS
1172 	andl	$(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax
1177 	movl	PT_CS(%esp), %eax
1178 	andl	$SEGMENT_RPL_MASK, %eax
1180 	cmpl	$USER_RPL, %eax			# returning to v8086 or userspace ?
1189 	movl	%esp, %eax
1248 	pushl	%eax
1249 	movl	%ss, %eax
1251 	popl	%eax
1255 	pushl	%eax				# pt_regs->orig_ax
1259 	movl	%esp, %eax			# pt_regs pointer
1264 	subl	%eax, %ecx	/* ecx = (end of entry_stack) - esp */
1306 	pushl	%eax		# orig_ax
1315 	movl	%esp, %eax			# pt_regs pointer