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hal_kentry.S @ 86

Last change on this file since 86 was 86, checked in by max@…, 7 years ago
enable the timer (not yet calibrated)
File size: 3.5 KB

Rev	Line
[25]	1	/*
[29]	2	* hal_kentry.S - Entry points into the kernel (traps, interrupts, syscalls)
[25]	3	*
[29]	4	* Copyright (c) 2017 Maxime Villard
[25]	5	*
	6	* This file is part of ALMOS-MKH.
	7	*
	8	* ALMOS-MKH is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; version 2.0 of the License.
	11	*
	12	* ALMOS-MKH is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
[29]	18	* along with ALMOS-MKH.; if not, write to the Free Software Foundation,
[25]	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	20	*/
	21
[29]	22	#define x86_ASM
	23	#include <hal_boot.h>
	24	#include <hal_kentry.h>
[86]	25	#include <hal_apic.h>
[25]	26
[29]	27	#define TRAPENTRY(a) \
[86]	28	pushq $(a); \
	29	jmp alltraps;
[25]	30
[29]	31	#define ZTRAPENTRY(a) \
[86]	32	pushq $0; \
[29]	33	TRAPENTRY(a)
[25]	34
[29]	35	.text
	36	.globl hal_trap_entry
[86]	37	.globl hal_timer_intr
[29]	38	.type hal_trap_entry, @function
[86]	39	.type hal_timer_intr, @function
[25]	40
[45]	41	/*
	42	* General exceptions.
	43	*/
[29]	44	ASM_ENTRY(x86_trap00)
	45	ZTRAPENTRY(T_DIVIDE)
[25]	46
[29]	47	ASM_ENTRY(x86_trap01)
	48	ZTRAPENTRY(T_TRCTRAP)
[25]	49
[29]	50	ASM_ENTRY(x86_trap02)
	51	ZTRAPENTRY(T_NMI)
[25]	52
[29]	53	ASM_ENTRY(x86_trap03)
	54	ZTRAPENTRY(T_BPTFLT)
[25]	55
[29]	56	ASM_ENTRY(x86_trap04)
	57	ZTRAPENTRY(T_OFLOW)
[25]	58
[29]	59	ASM_ENTRY(x86_trap05)
	60	ZTRAPENTRY(T_BOUND)
[25]	61
[29]	62	ASM_ENTRY(x86_trap06)
	63	ZTRAPENTRY(T_PRIVINFLT)
[25]	64
[29]	65	ASM_ENTRY(x86_trap07)
	66	ZTRAPENTRY(T_DNA)
[25]	67
[29]	68	ASM_ENTRY(x86_trap08)
	69	TRAPENTRY(T_DOUBLEFLT)
[25]	70
[29]	71	ASM_ENTRY(x86_trap09)
	72	ZTRAPENTRY(T_FPOPFLT)
[25]	73
[29]	74	ASM_ENTRY(x86_trap0a)
	75	TRAPENTRY(T_TSSFLT)
[25]	76
[29]	77	ASM_ENTRY(x86_trap0b)
[82]	78	TRAPENTRY(T_SEGNPFLT)
[25]	79
[29]	80	ASM_ENTRY(x86_trap0c)
[82]	81	TRAPENTRY(T_STKFLT)
[25]	82
[29]	83	ASM_ENTRY(x86_trap0d)
[82]	84	TRAPENTRY(T_PROTFLT)
[25]	85
[29]	86	ASM_ENTRY(x86_trap0e)
	87	TRAPENTRY(T_PAGEFLT)
[25]	88
[29]	89	ASM_ENTRY(x86_trap0f)
	90	ZTRAPENTRY(T_ASTFLT)
[25]	91
[29]	92	ASM_ENTRY(x86_trap10)
	93	ZTRAPENTRY(T_ARITHTRAP)
[25]	94
[29]	95	ASM_ENTRY(x86_trap11)
	96	TRAPENTRY(T_ALIGNFLT)
[25]	97
[29]	98	ASM_ENTRY(x86_trap12)
	99	ZTRAPENTRY(T_MCA)
[25]	100
[29]	101	ASM_ENTRY(x86_trap13)
	102	ZTRAPENTRY(T_XMM)
[25]	103
[29]	104	ASM_ENTRY(x86_trap14)
	105	ASM_ENTRY(x86_trap15)
	106	ASM_ENTRY(x86_trap16)
	107	ASM_ENTRY(x86_trap17)
	108	ASM_ENTRY(x86_trap18)
	109	ASM_ENTRY(x86_trap19)
	110	ASM_ENTRY(x86_trap1a)
	111	ASM_ENTRY(x86_trap1b)
	112	ASM_ENTRY(x86_trap1c)
	113	ASM_ENTRY(x86_trap1d)
	114	ASM_ENTRY(x86_trap1e)
	115	ASM_ENTRY(x86_trap1f)
[80]	116	ASM_ENTRY(x86_rsvd)
[29]	117	/* 20 - 31 reserved for future exp */
	118	ZTRAPENTRY(T_RESERVED)
[25]	119
[45]	120	/*
	121	* LAPIC interrupts.
	122	*/
[86]	123	ASM_ENTRY(x86_lapic_spurious)
[45]	124	ZTRAPENTRY(T_ASTFLT)
	125
[86]	126	ASM_ENTRY(x86_lapic_timer)
	127	pushq $0
	128	pushq $T_ASTFLT
	129	INTR_SAVE_REGS
	130
	131	movq %rsp,%rdi
	132	call hal_timer_intr
	133
	134	movq lapic_va(%rip),%rax
	135	movl $0,LAPIC_EOI(%rax)
	136
	137	INTR_RESTORE_REGS
	138	addq $16,%rsp
	139	iretq
	140
[29]	141	/*
	142	* Arguments pushed on the stack:
	143	* tf_trapno
	144	* tf_err: Dummy inserted if not defined
	145	* tf_rip
	146	* tf_cs
	147	* tf_rflags
	148	* tf_rsp
	149	* tf_ss
	150	*/
	151	alltraps:
	152	movq %rsp,%rdi
	153	call hal_trap_entry
	154	/* NOTREACHED */
[25]	155
[29]	156	.data
	157	.globl x86_traps
[45]	158	.globl x86_intrs
[29]	159	.type x86_traps, @object
[45]	160	.type x86_intrs, @object
[25]	161
[29]	162	.align 64
	163	x86_traps:
	164	.quad x86_trap00, x86_trap01
	165	.quad x86_trap02, x86_trap03
	166	.quad x86_trap04, x86_trap05
	167	.quad x86_trap06, x86_trap07
	168	.quad x86_trap08, x86_trap09
	169	.quad x86_trap0a, x86_trap0b
	170	.quad x86_trap0c, x86_trap0d
	171	.quad x86_trap0e, x86_trap0f
	172	.quad x86_trap10, x86_trap11
	173	.quad x86_trap12, x86_trap13
	174	.quad x86_trap14, x86_trap15
	175	.quad x86_trap16, x86_trap17
	176	.quad x86_trap18, x86_trap19
	177	.quad x86_trap1a, x86_trap1b
	178	.quad x86_trap1c, x86_trap1d
	179	.quad x86_trap1e, x86_trap1f
	180
[45]	181	x86_intrs:
[86]	182	.quad x86_lapic_spurious
	183	.quad x86_lapic_timer
[45]	184

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