xref: /illumos-gate/usr/src/uts/i86xpv/ml/panic_asm.s (revision 86ef0a63)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#include <sys/asm_linkage.h>
28#include <sys/hypervisor.h>
29#include <sys/privregs.h>
30#include <sys/segments.h>
31#include <sys/traptrace.h>
32#include <sys/trap.h>
33#include <sys/psw.h>
34#include <sys/x86_archext.h>
35#include <sys/asm_misc.h>
36#include <sys/panic.h>
37
38#include "assym.h"
39
40	ENTRY_NP(xpv_panic_getcr3)
41	movq	%cr3, %rax
42	ret
43	SET_SIZE(xpv_panic_getcr3)
44
45	ENTRY_NP(xpv_panic_setcr3)
46	movq	%rdi, %cr3
47	ret
48	SET_SIZE(xpv_panic_setcr3)
49
50	ENTRY(xpv_panic_reload_cr3)
51	movq	%cr3, %rdi
52	movq	%rdi, %cr3
53	ret
54	SET_SIZE(xpv_panic_reload_cr3)
55
56	ENTRY_NP(xpv_panic_prep)
57	pushq   %rbp
58	movq	%rsp, %rbp
59
60	subq	$REGSIZE, %rsp
61	movq	%rax, REGOFF_RAX(%rsp)
62	movq	%rbx, REGOFF_RBX(%rsp)
63	movq	%rsp, %rax
64	addq	$REGSIZE, %rax
65	movq	(%rax), %rbx
66	movq	%rbx, REGOFF_RBP(%rsp)
67	movq	8(%rax), %rbx
68	movq	%rbx, REGOFF_TRAPNO(%rsp)
69	movq	16(%rax), %rbx
70	movq	%rbx, REGOFF_ERR(%rsp)
71	movq	24(%rax), %rbx
72	movq	%rbx, REGOFF_RIP(%rsp)
73	movq	32(%rax), %rbx
74	movq	%rbx, REGOFF_CS(%rsp)
75	movq	40(%rax), %rbx
76	movq	%rbx, REGOFF_RFL(%rsp)
77	addq	$56, %rax
78	movq	%rax, REGOFF_RSP(%rsp)
79	xorl	%eax, %eax
80	movw	%gs, %ax
81	mov	%rax, REGOFF_GS(%rsp)
82	movw	%fs, %ax
83	mov	%rax, REGOFF_FS(%rsp)
84	movw	%es, %ax
85	mov	%rax, REGOFF_ES(%rsp)
86	movw	%ds, %ax
87	mov	%rax, REGOFF_DS(%rsp)
88	movw	%ss, %ax
89	mov	%rax, REGOFF_SS(%rsp)
90	movq	%rcx, REGOFF_RCX(%rsp)
91	movq	%rdx, REGOFF_RDX(%rsp)
92	movq	%rdi, REGOFF_RDI(%rsp)
93	movq	%rsi, REGOFF_RSI(%rsp)
94	movq	%r8, REGOFF_R8(%rsp)
95	movq	%r9, REGOFF_R9(%rsp)
96	movq	%r10, REGOFF_R10(%rsp)
97	movq	%r11, REGOFF_R11(%rsp)
98	movq	%r12, REGOFF_R12(%rsp)
99	movq	%r13, REGOFF_R13(%rsp)
100	movq	%r14, REGOFF_R14(%rsp)
101	movq	%r15, REGOFF_R15(%rsp)
102
103	movq	%rsp, %rdi
104	call	xpv_die
105	SET_SIZE(xpv_panic_prep)
106
107	/*
108	 * Switch to the Solaris panic stack and jump into the Xen panic
109	 * handling code.
110	 */
111	ENTRY_NP(xpv_panic_hdlr)
112	leaq	panic_stack(%rip), %rsp
113	addq	$PANICSTKSIZE, %rsp
114	call	xpv_do_panic
115	SET_SIZE(xpv_panic_hdlr)
116
117	ENTRY_NP(xpv_surprise_intr)
118	pushq   %rbp
119	movq	%rsp, %rbp
120	subq	$REGOFF_TRAPNO, %rsp
121	__SAVE_REGS
122	movq	%rsp, %rdi
123	addq	$REGOFF_TRAPNO, %rdi
124	call	xpv_interrupt
125	__RESTORE_REGS
126	addq	$REGOFF_TRAPNO, %rsp
127	popq	%rbp
128	iretq
129	SET_SIZE(xpv_surprise_intr)
130
131	ENTRY_NP(xpv_timer_trap)
132	pushq   %rbp
133	movq	%rsp, %rbp
134	subq	$REGOFF_TRAPNO, %rsp
135	__SAVE_REGS
136	movq	%rsp, %rdi
137	addq	$REGOFF_TRAPNO, %rdi
138	call	xpv_timer_tick
139	__RESTORE_REGS
140	addq	$REGOFF_TRAPNO, %rsp
141	popq	%rbp
142	iretq
143	SET_SIZE(xpv_timer_trap)
144
145	ENTRY_NP(xpv_panic_sti)
146	sti
147	ret
148	SET_SIZE(xpv_panic_sti)
149
150	ENTRY_NP(xpv_panic_halt)
151	sti
152	hlt
153	ret
154	SET_SIZE(xpv_panic_halt)
155
156	ENTRY_NP(xpv_panic_resetgs)
157	movl	$KGS_SEL, %eax
158	movw	%ax, %gs
159	ret
160	SET_SIZE(xpv_panic_resetgs)
161
162	ENTRY_NP(xpv_invaltrap)
163	push	$0xbad0
164	push	$0x0bad
165	jmp	xpv_panic_prep
166	SET_SIZE(xpv_invaltrap)
167
168	ENTRY_NP(xpv_div0trap)
169	push	$0
170	push	$T_ZERODIV
171	jmp	xpv_panic_prep
172	SET_SIZE(xpv_div0trap)
173
174	ENTRY_NP(xpv_dbgtrap)
175	push	$0
176	push	$T_SGLSTP
177	jmp	xpv_panic_prep
178	SET_SIZE(xpv_dbgtrap)
179
180	ENTRY_NP(xpv_nmiint)
181	push	$0
182	push	$T_NMIFLT
183	jmp	xpv_panic_prep
184	SET_SIZE(xpv_nmiint)
185
186	ENTRY_NP(xpv_brktrap)
187	/* XXX: check for error */
188	push	$T_BPTFLT
189	jmp	xpv_panic_prep
190	SET_SIZE(xpv_brktrap)
191
192	ENTRY_NP(xpv_ovflotrap)
193	push	$0
194	push	$T_OVFLW
195	jmp	xpv_panic_prep
196	SET_SIZE(xpv_ovflotrap)
197
198	ENTRY_NP(xpv_boundstrap)
199	push	$0
200	push	$T_BOUNDFLT
201	jmp	xpv_panic_prep
202	SET_SIZE(xpv_boundstrap)
203
204	ENTRY_NP(xpv_invoptrap)
205	push	$T_ILLINST
206	jmp	xpv_panic_prep
207	SET_SIZE(xpv_invoptrap)
208
209	ENTRY_NP(xpv_ndptrap)
210	push	$0
211	push	$T_NOEXTFLT
212	jmp	xpv_panic_prep
213	SET_SIZE(xpv_ndptrap)
214
215	ENTRY_NP(xpv_syserrtrap)
216	/* XXX: check for error */
217	push	$T_DBLFLT
218	jmp	xpv_panic_prep
219	SET_SIZE(xpv_syserrtrap)
220
221	ENTRY_NP(xpv_invtsstrap)
222	push	$T_TSSFLT
223	jmp	xpv_panic_prep
224	SET_SIZE(xpv_invtsstrap)
225
226	ENTRY_NP(xpv_segnptrap)
227	push	$T_SEGFLT
228	jmp	xpv_panic_prep
229	SET_SIZE(xpv_segnptrap)
230
231	ENTRY_NP(xpv_stktrap)
232	push	$T_STKFLT
233	jmp	xpv_panic_prep
234	SET_SIZE(xpv_stktrap)
235
236	ENTRY_NP(xpv_gptrap)
237	push	$T_GPFLT
238	jmp	xpv_panic_prep
239	SET_SIZE(xpv_gptrap)
240
241	ENTRY_NP(xpv_pftrap)
242	push	$T_PGFLT
243	jmp	xpv_panic_prep
244	SET_SIZE(xpv_pftrap)
245
246	ENTRY_NP(xpv_ndperr)
247	push	$0
248	push	$T_EXTERRFLT
249	jmp	xpv_panic_prep
250	SET_SIZE(xpv_ndperr)
251
252	ENTRY_NP(xpv_achktrap)
253	push	$T_ALIGNMENT
254	jmp	xpv_panic_prep
255	SET_SIZE(xpv_achktrap)
256
257	ENTRY_NP(xpv_mcetrap)
258	push	$0
259	push	$T_MCE
260	jmp	xpv_panic_prep
261	SET_SIZE(xpv_mcetrap)
262
263	ENTRY_NP(xpv_xmtrap)
264	push	$0
265	push	$T_SIMDFPE
266	jmp	xpv_panic_prep
267	SET_SIZE(xpv_xmtrap)
268