WebSVN – HelenOS – Diff – /trunk/kernel/arch/ia32xen/src/interrupt.c


/*
 * Copyright (c) 2006 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup ia32xen_interrupt
 * @{
 */
/** @file
 */
 
#include <arch/interrupt.h>
#include <syscall/syscall.h>
#include <print.h>
#include <debug.h>
#include <panic.h>
#include <func.h>
#include <cpu.h>
#include <arch/asm.h>
#include <mm/tlb.h>
#include <mm/as.h>
#include <arch.h>
#include <symtab.h>
#include <proc/thread.h>
#include <proc/task.h>
#include <synch/spinlock.h>
#include <arch/ddi/ddi.h>
#include <ipc/sysipc.h>
#include <interrupt.h>
#include <ddi/irq.h>
 
/*
 * Interrupt and exception dispatching.
 */
 
void (* disable_irqs_function)(uint16_t irqmask) = NULL;
void (* enable_irqs_function)(uint16_t irqmask) = NULL;
void (* eoi_function)(void) = NULL;
 
void decode_istate(istate_t *istate)
{
    char *symbol = get_symtab_entry(istate->eip);
 
    if (!symbol)
        symbol = "";
 
    if (CPU)
        printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
    else
        printf("----------------EXCEPTION OCCURED----------------\n");
       
    printf("%%eip: %#x (%s)\n",istate->eip,symbol);
    printf("ERROR_WORD=%#x\n", istate->error_word);
    printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);
    printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n",  istate->eax,istate->ecx,istate->edx,&istate->stack[0]);
#ifdef CONFIG_DEBUG_ALLREGS
    printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n",  istate->esi,istate->edi,istate->ebp,istate->ebx);
#endif
    printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
    printf("       %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
}
 
static void trap_virtual_eoi(void)
{
    if (eoi_function)
        eoi_function();
    else
        panic("no eoi_function\n");
 
}
 
static void null_interrupt(int n, istate_t *istate)
{
    fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
 
    decode_istate(istate);
    panic("unserviced interrupt: %d\n", n);
}
 
/** General Protection Fault. */
static void gp_fault(int n, istate_t *istate)
{
    if (TASK) {
        count_t ver;
       
        spinlock_lock(&TASK->lock);
        ver = TASK->arch.iomapver;
        spinlock_unlock(&TASK->lock);
   
        if (CPU->arch.iomapver_copy != ver) {
            /*
             * This fault can be caused by an early access
             * to I/O port because of an out-dated
             * I/O Permission bitmap installed on CPU.
             * Install the fresh copy and restart
             * the instruction.
             */
            io_perm_bitmap_install();
            return;
        }
        fault_if_from_uspace(istate, "general protection fault");
    }
 
    decode_istate(istate);
    panic("general protection fault\n");
}
 
static void ss_fault(int n, istate_t *istate)
{
    fault_if_from_uspace(istate, "stack fault");
 
    decode_istate(istate);
    panic("stack fault\n");
}
 
static void simd_fp_exception(int n, istate_t *istate)
{
    uint32_t mxcsr;
    asm
    (
        "stmxcsr %0;\n"
        :"=m"(mxcsr)
    );
    fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx",
                 (unative_t)mxcsr);
 
    decode_istate(istate);
    printf("MXCSR: %#zx\n",(unative_t)(mxcsr));
    panic("SIMD FP exception(19)\n");
}
 
static void nm_fault(int n, istate_t *istate)
{
#ifdef CONFIG_FPU_LAZY     
    scheduler_fpu_lazy_request();
#else
    fault_if_from_uspace(istate, "fpu fault");
    panic("fpu fault");
#endif
}
 
#ifdef CONFIG_SMP
static void tlb_shootdown_ipi(int n, istate_t *istate)
{
    trap_virtual_eoi();
    tlb_shootdown_ipi_recv();
}
#endif
 
/** Handler of IRQ exceptions */
static void irq_interrupt(int n, istate_t *istate)
{
    ASSERT(n >= IVT_IRQBASE);
   
    int inum = n - IVT_IRQBASE;
    ASSERT(inum < IRQ_COUNT);
    ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));
 
    irq_t *irq = irq_dispatch_and_lock(inum);
    if (irq) {
        /*
         * The IRQ handler was found.
         */
        irq->handler(irq, irq->arg);
        spinlock_unlock(&irq->lock);
    } else {
        /*
         * Spurious interrupt.
         */
#ifdef CONFIG_DEBUG
        printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, inum);
#endif
    }
    trap_virtual_eoi();
}
 
void interrupt_init(void)
{
    int i;
   
    for (i = 0; i < IVT_ITEMS; i++)
        exc_register(i, "null", (iroutine) null_interrupt);
   
    for (i = 0; i < IRQ_COUNT; i++) {
        if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))
            exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);
    }
   
    exc_register(7, "nm_fault", (iroutine) nm_fault);
    exc_register(12, "ss_fault", (iroutine) ss_fault);
    exc_register(13, "gp_fault", (iroutine) gp_fault);
    exc_register(19, "simd_fp", (iroutine) simd_fp_exception);
   
#ifdef CONFIG_SMP
    exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);
#endif
}
 
void trap_virtual_enable_irqs(uint16_t irqmask)
{
    if (enable_irqs_function)
        enable_irqs_function(irqmask);
    else
        panic("no enable_irqs_function\n");
}
 
void trap_virtual_disable_irqs(uint16_t irqmask)
{
    if (disable_irqs_function)
        disable_irqs_function(irqmask);
    else
        panic("no disable_irqs_function\n");
}
 
/** @}
 */
 

Rev 1959	Rev 2071
1	/*	1	/*
2	* Copyright (C) 2006 Martin Decky	2	* Copyright (c) 2006 Martin Decky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup ia32xen_interrupt	29	/** @addtogroup ia32xen_interrupt
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/interrupt.h>	35	#include <arch/interrupt.h>
36	#include <syscall/syscall.h>	36	#include <syscall/syscall.h>
37	#include <print.h>	37	#include <print.h>
38	#include <debug.h>	38	#include <debug.h>
39	#include <panic.h>	39	#include <panic.h>
40	#include <func.h>	40	#include <func.h>
41	#include <cpu.h>	41	#include <cpu.h>
42	#include <arch/asm.h>	42	#include <arch/asm.h>
43	#include <mm/tlb.h>	43	#include <mm/tlb.h>
44	#include <mm/as.h>	44	#include <mm/as.h>
45	#include <arch.h>	45	#include <arch.h>
46	#include <symtab.h>	46	#include <symtab.h>
47	#include <proc/thread.h>	47	#include <proc/thread.h>
48	#include <proc/task.h>	48	#include <proc/task.h>
49	#include <synch/spinlock.h>	49	#include <synch/spinlock.h>
50	#include <arch/ddi/ddi.h>	50	#include <arch/ddi/ddi.h>
51	#include <ipc/sysipc.h>	51	#include <ipc/sysipc.h>
52	#include <interrupt.h>	52	#include <interrupt.h>
53	#include <ddi/irq.h>	53	#include <ddi/irq.h>
54		54
55	/*	55	/*
56	* Interrupt and exception dispatching.	56	* Interrupt and exception dispatching.
57	*/	57	*/
58		58
59	void (* disable_irqs_function)(uint16_t irqmask) = NULL;	59	void (* disable_irqs_function)(uint16_t irqmask) = NULL;
60	void (* enable_irqs_function)(uint16_t irqmask) = NULL;	60	void (* enable_irqs_function)(uint16_t irqmask) = NULL;
61	void (* eoi_function)(void) = NULL;	61	void (* eoi_function)(void) = NULL;
62		62
63	void decode_istate(istate_t *istate)	63	void decode_istate(istate_t *istate)
64	{	64	{
65	char *symbol = get_symtab_entry(istate->eip);	65	char *symbol = get_symtab_entry(istate->eip);
66		66
67	if (!symbol)	67	if (!symbol)
68	symbol = "";	68	symbol = "";
69		69
70	if (CPU)	70	if (CPU)
71	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);	71	printf("----------------EXCEPTION OCCURED (cpu%d)----------------\n", CPU->id);
72	else	72	else
73	printf("----------------EXCEPTION OCCURED----------------\n");	73	printf("----------------EXCEPTION OCCURED----------------\n");
74		74
75	printf("%%eip: %#x (%s)\n",istate->eip,symbol);	75	printf("%%eip: %#x (%s)\n",istate->eip,symbol);
76	printf("ERROR_WORD=%#x\n", istate->error_word);	76	printf("ERROR_WORD=%#x\n", istate->error_word);
77	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);	77	printf("%%cs=%#x,flags=%#x\n", istate->cs, istate->eflags);
78	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);	78	printf("%%eax=%#x, %%ecx=%#x, %%edx=%#x, %%esp=%#x\n", istate->eax,istate->ecx,istate->edx,&istate->stack[0]);
79	#ifdef CONFIG_DEBUG_ALLREGS	79	#ifdef CONFIG_DEBUG_ALLREGS
80	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);	80	printf("%%esi=%#x, %%edi=%#x, %%ebp=%#x, %%ebx=%#x\n", istate->esi,istate->edi,istate->ebp,istate->ebx);
81	#endif	81	#endif
82	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);	82	printf("stack: %#x, %#x, %#x, %#x\n", istate->stack[0], istate->stack[1], istate->stack[2], istate->stack[3]);
83	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);	83	printf(" %#x, %#x, %#x, %#x\n", istate->stack[4], istate->stack[5], istate->stack[6], istate->stack[7]);
84	}	84	}
85		85
86	static void trap_virtual_eoi(void)	86	static void trap_virtual_eoi(void)
87	{	87	{
88	if (eoi_function)	88	if (eoi_function)
89	eoi_function();	89	eoi_function();
90	else	90	else
91	panic("no eoi_function\n");	91	panic("no eoi_function\n");
92		92
93	}	93	}
94		94
95	static void null_interrupt(int n, istate_t *istate)	95	static void null_interrupt(int n, istate_t *istate)
96	{	96	{
97	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);	97	fault_if_from_uspace(istate, "unserviced interrupt: %d", n);
98		98
99	decode_istate(istate);	99	decode_istate(istate);
100	panic("unserviced interrupt: %d\n", n);	100	panic("unserviced interrupt: %d\n", n);
101	}	101	}
102		102
103	/** General Protection Fault. */	103	/** General Protection Fault. */
104	static void gp_fault(int n, istate_t *istate)	104	static void gp_fault(int n, istate_t *istate)
105	{	105	{
106	if (TASK) {	106	if (TASK) {
107	count_t ver;	107	count_t ver;
108		108
109	spinlock_lock(&TASK->lock);	109	spinlock_lock(&TASK->lock);
110	ver = TASK->arch.iomapver;	110	ver = TASK->arch.iomapver;
111	spinlock_unlock(&TASK->lock);	111	spinlock_unlock(&TASK->lock);
112		112
113	if (CPU->arch.iomapver_copy != ver) {	113	if (CPU->arch.iomapver_copy != ver) {
114	/*	114	/*
115	* This fault can be caused by an early access	115	* This fault can be caused by an early access
116	* to I/O port because of an out-dated	116	* to I/O port because of an out-dated
117	* I/O Permission bitmap installed on CPU.	117	* I/O Permission bitmap installed on CPU.
118	* Install the fresh copy and restart	118	* Install the fresh copy and restart
119	* the instruction.	119	* the instruction.
120	*/	120	*/
121	io_perm_bitmap_install();	121	io_perm_bitmap_install();
122	return;	122	return;
123	}	123	}
124	fault_if_from_uspace(istate, "general protection fault");	124	fault_if_from_uspace(istate, "general protection fault");
125	}	125	}
126		126
127	decode_istate(istate);	127	decode_istate(istate);
128	panic("general protection fault\n");	128	panic("general protection fault\n");
129	}	129	}
130		130
131	static void ss_fault(int n, istate_t *istate)	131	static void ss_fault(int n, istate_t *istate)
132	{	132	{
133	fault_if_from_uspace(istate, "stack fault");	133	fault_if_from_uspace(istate, "stack fault");
134		134
135	decode_istate(istate);	135	decode_istate(istate);
136	panic("stack fault\n");	136	panic("stack fault\n");
137	}	137	}
138		138
139	static void simd_fp_exception(int n, istate_t *istate)	139	static void simd_fp_exception(int n, istate_t *istate)
140	{	140	{
141	uint32_t mxcsr;	141	uint32_t mxcsr;
142	asm	142	asm
143	(	143	(
144	"stmxcsr %0;\n"	144	"stmxcsr %0;\n"
145	:"=m"(mxcsr)	145	:"=m"(mxcsr)
146	);	146	);
147	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx",	147	fault_if_from_uspace(istate, "SIMD FP exception(19), MXCSR: %#zx",
148	(unative_t)mxcsr);	148	(unative_t)mxcsr);
149		149
150	decode_istate(istate);	150	decode_istate(istate);
151	printf("MXCSR: %#zx\n",(unative_t)(mxcsr));	151	printf("MXCSR: %#zx\n",(unative_t)(mxcsr));
152	panic("SIMD FP exception(19)\n");	152	panic("SIMD FP exception(19)\n");
153	}	153	}
154		154
155	static void nm_fault(int n, istate_t *istate)	155	static void nm_fault(int n, istate_t *istate)
156	{	156	{
157	#ifdef CONFIG_FPU_LAZY	157	#ifdef CONFIG_FPU_LAZY
158	scheduler_fpu_lazy_request();	158	scheduler_fpu_lazy_request();
159	#else	159	#else
160	fault_if_from_uspace(istate, "fpu fault");	160	fault_if_from_uspace(istate, "fpu fault");
161	panic("fpu fault");	161	panic("fpu fault");
162	#endif	162	#endif
163	}	163	}
164		164
165	#ifdef CONFIG_SMP	165	#ifdef CONFIG_SMP
166	static void tlb_shootdown_ipi(int n, istate_t *istate)	166	static void tlb_shootdown_ipi(int n, istate_t *istate)
167	{	167	{
168	trap_virtual_eoi();	168	trap_virtual_eoi();
169	tlb_shootdown_ipi_recv();	169	tlb_shootdown_ipi_recv();
170	}	170	}
171	#endif	171	#endif
172		172
173	/** Handler of IRQ exceptions */	173	/** Handler of IRQ exceptions */
174	static void irq_interrupt(int n, istate_t *istate)	174	static void irq_interrupt(int n, istate_t *istate)
175	{	175	{
176	ASSERT(n >= IVT_IRQBASE);	176	ASSERT(n >= IVT_IRQBASE);
177		177
178	int inum = n - IVT_IRQBASE;	178	int inum = n - IVT_IRQBASE;
179	ASSERT(inum < IRQ_COUNT);	179	ASSERT(inum < IRQ_COUNT);
180	ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));	180	ASSERT((inum != IRQ_PIC_SPUR) && (inum != IRQ_PIC1));
181		181
182	irq_t *irq = irq_dispatch_and_lock(inum);	182	irq_t *irq = irq_dispatch_and_lock(inum);
183	if (irq) {	183	if (irq) {
184	/*	184	/*
185	* The IRQ handler was found.	185	* The IRQ handler was found.
186	*/	186	*/
187	irq->handler(irq, irq->arg);	187	irq->handler(irq, irq->arg);
188	spinlock_unlock(&irq->lock);	188	spinlock_unlock(&irq->lock);
189	} else {	189	} else {
190	/*	190	/*
191	* Spurious interrupt.	191	* Spurious interrupt.
192	*/	192	*/
193	#ifdef CONFIG_DEBUG	193	#ifdef CONFIG_DEBUG
194	printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, inum);	194	printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, inum);
195	#endif	195	#endif
196	}	196	}
197	trap_virtual_eoi();	197	trap_virtual_eoi();
198	}	198	}
199		199
200	void interrupt_init(void)	200	void interrupt_init(void)
201	{	201	{
202	int i;	202	int i;
203		203
204	for (i = 0; i < IVT_ITEMS; i++)	204	for (i = 0; i < IVT_ITEMS; i++)
205	exc_register(i, "null", (iroutine) null_interrupt);	205	exc_register(i, "null", (iroutine) null_interrupt);
206		206
207	for (i = 0; i < IRQ_COUNT; i++) {	207	for (i = 0; i < IRQ_COUNT; i++) {
208	if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))	208	if ((i != IRQ_PIC_SPUR) && (i != IRQ_PIC1))
209	exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);	209	exc_register(IVT_IRQBASE + i, "irq", (iroutine) irq_interrupt);
210	}	210	}
211		211
212	exc_register(7, "nm_fault", (iroutine) nm_fault);	212	exc_register(7, "nm_fault", (iroutine) nm_fault);
213	exc_register(12, "ss_fault", (iroutine) ss_fault);	213	exc_register(12, "ss_fault", (iroutine) ss_fault);
214	exc_register(13, "gp_fault", (iroutine) gp_fault);	214	exc_register(13, "gp_fault", (iroutine) gp_fault);
215	exc_register(19, "simd_fp", (iroutine) simd_fp_exception);	215	exc_register(19, "simd_fp", (iroutine) simd_fp_exception);
216		216
217	#ifdef CONFIG_SMP	217	#ifdef CONFIG_SMP
218	exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);	218	exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown", (iroutine) tlb_shootdown_ipi);
219	#endif	219	#endif
220	}	220	}
221		221
222	void trap_virtual_enable_irqs(uint16_t irqmask)	222	void trap_virtual_enable_irqs(uint16_t irqmask)
223	{	223	{
224	if (enable_irqs_function)	224	if (enable_irqs_function)
225	enable_irqs_function(irqmask);	225	enable_irqs_function(irqmask);
226	else	226	else
227	panic("no enable_irqs_function\n");	227	panic("no enable_irqs_function\n");
228	}	228	}
229		229
230	void trap_virtual_disable_irqs(uint16_t irqmask)	230	void trap_virtual_disable_irqs(uint16_t irqmask)
231	{	231	{
232	if (disable_irqs_function)	232	if (disable_irqs_function)
233	disable_irqs_function(irqmask);	233	disable_irqs_function(irqmask);
234	else	234	else
235	panic("no disable_irqs_function\n");	235	panic("no disable_irqs_function\n");
236	}	236	}
237		237
238	/** @}	238	/** @}
239	*/	239	*/
240		240

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ia32xen/src/interrupt.c – Rev 1959 → 2071