X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=cc26934ed4113cf4bcbe2ce86c59ffdb985d2c5c;hb=4bc3ee757b44d3e466fd89e348106c47fa5511ee;hp=0d68f21cd1b1de951c00c9df6c5cc963e5893c25;hpb=4b93282ac2e60cd4d74b1e0be8ac758933140413;p=palacios.git diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index 0d68f21..cc26934 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -1,7 +1,28 @@ +/* + * This file is part of the Palacios Virtual Machine Monitor developed + * by the V3VEE Project with funding from the United States National + * Science Foundation and the Department of Energy. + * + * The V3VEE Project is a joint project between Northwestern University + * and the University of New Mexico. You can find out more at + * http://www.v3vee.org + * + * Copyright (c) 2008, Peter Dinda + * Copyright (c) 2008, The V3VEE Project + * All rights reserved. + * + * Author: Peter Dinda + * Contributor: 2008, Jack Lange + * + * + * This is free software. You are permitted to use, + * redistribute, and modify it as specified in the file "V3VEE_LICENSE". + */ + #include #include #include -#include +#include @@ -15,357 +36,346 @@ #define MEM_HOOKS 0 // not yet implmented in device model #define IRQ_HOOKS 0 // not yet implemented in device model + struct generic_internal { - generic_port_range_type *port_ranges; - uint_t num_port_ranges; - generic_address_range_type *address_ranges; - uint_t num_address_ranges; - generic_irq_range_type *irq_ranges; - uint_t num_irq_ranges; + struct list_head port_list; + uint_t num_port_ranges; + struct list_head mem_list; + uint_t num_mem_ranges; + struct list_head irq_list; + uint_t num_irq_ranges; }; - -#ifdef RAMDISK_BOOT -#include -//ramdisk_state -static struct ramdisk_t *ramdisk_state; -#endif +struct port_range { + uint_t start; + uint_t end; + uint_t type; + struct list_head range_link; +}; +struct mem_range { + void * start; + void * end; + uint_t type; + struct list_head range_link; +}; +struct irq_range { + uint_t start; + uint_t end; + uint_t type; + struct list_head range_link; +}; -int generic_reset_device(struct vm_device * dev) -{ - PrintDebug("generic: reset device\n"); - - return 0; +static int generic_reset_device(struct vm_device * dev) { + PrintDebug("generic: reset device\n"); + return 0; } -int generic_start_device(struct vm_device *dev) -{ - PrintDebug("generic: start device\n"); - return 0; +static int generic_start_device(struct vm_device * dev) { + PrintDebug("generic: start device\n"); + return 0; } -int generic_stop_device(struct vm_device *dev) -{ - PrintDebug("generic: stop device\n"); - return 0; +static int generic_stop_device(struct vm_device * dev) { + PrintDebug("generic: stop device\n"); + return 0; } -int generic_write_port_passthrough(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) -{ - uint_t i; - - PrintDebug("generic: writing 0x"); - - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } - - PrintDebug(" to port 0x%x ... ", port); - -#ifdef RAMDISK_BOOT - - uint_t err; - - if (((port >= 0x170 && port <= 0x177) || port == 0x376 || port == 0x377) - && (dev->vm->cpu_mode == REAL)) { - - - err = ramdisk_state->eops.write_port(port, src, length, dev); +static int generic_write_port_passthrough(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { + uint_t i; - }else{ -#endif + PrintDebug("generic: writing 0x"); - switch (length) { - case 1: - Out_Byte(port,((uchar_t*)src)[0]); - break; - case 2: - Out_Word(port,((ushort_t*)src)[0]); - break; - case 4: - Out_DWord(port,((uint_t*)src)[0]); - break; - default: for (i = 0; i < length; i++) { - Out_Byte(port, ((uchar_t*)src)[i]); + PrintDebug("%x", ((uchar_t*)src)[i]); } - } //switch length -#ifdef RAMDISK_BOOT - }//else not ramdisk -#endif - PrintDebug(" done\n"); - return length; -} - -int generic_read_port_passthrough(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) -{ - uint_t i; - - PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + PrintDebug(" to port 0x%x ... ", port); -#ifdef RAMDISK_BOOT - uint_t err; + switch (length) { + case 1: + v3_outb(port,((uchar_t*)src)[0]); + break; + case 2: + v3_outw(port,((ushort_t*)src)[0]); + break; + case 4: + v3_outdw(port,((uint_t*)src)[0]); + break; + default: + for (i = 0; i < length; i++) { + v3_outb(port, ((uchar_t*)src)[i]); + } + } //switch length + + + PrintDebug(" done\n"); + + return length; +} - if (((port >= 0x170 && port <= 0x177) || port == 0x376 || port == 0x377) - && (dev->vm->cpu_mode == REAL)) { +static int generic_read_port_passthrough(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { + uint_t i; - err = ramdisk_state->eops.read_port(port, src, length, dev); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - }else{ -#endif switch (length) { - case 1: - ((uchar_t*)src)[0] = In_Byte(port); - break; - case 2: - ((ushort_t*)src)[0] = In_Word(port); - break; - case 4: - ((uint_t*)src)[0] = In_DWord(port); - break; - default: - for (i = 0; i < length; i++) { - ((uchar_t*)src)[i] = In_Byte(port); - } + case 1: + ((uchar_t*)src)[0] = v3_inb(port); + break; + case 2: + ((ushort_t*)src)[0] = v3_inw(port); + break; + case 4: + ((uint_t*)src)[0] = v3_indw(port); + break; + default: + for (i = 0; i < length; i++) { + ((uchar_t*)src)[i] = v3_inb(port); + } }//switch length -#ifdef RAMDISK_BOOT - }//else not ramdisk -#endif - PrintDebug(" done ... read 0x"); + PrintDebug(" done ... read 0x"); - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); + } - PrintDebug("\n"); + PrintDebug("\n"); - return length; + return length; } -int generic_write_port_ignore(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) -{ - uint_t i; +static int generic_write_port_ignore(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { + uint_t i; - PrintDebug("generic: writing 0x"); + PrintDebug("generic: writing 0x"); - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); + } - PrintDebug(" to port 0x%x ... ", port); - - PrintDebug(" ignored\n"); + PrintDebug(" to port 0x%x ... ignored\n", port); -#ifdef RAMDISK_BOOT - - uint_t err; - - if (((port >= 0x3e8 && port <= 0x3ef) || - (port >= 0x2e8 && port <= 0x2ef)) - && (dev->vm->cpu_mode == REAL)) { - - err = ramdisk_state->eops.write_port_ignore(port, src, length, dev); - } -#endif - - return length; + return length; } -int generic_read_port_ignore(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) -{ - - PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - - memset((char*)src,0,length); - PrintDebug(" ignored (return zeroed buffer)\n"); - -#ifdef RAMDISK_BOOT +static int generic_read_port_ignore(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { - uint_t err; + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - if (((port >= 0x3e8 && port <= 0x3ef) || - (port >= 0x2e8 && port <= 0x2ef)) - && (dev->vm->cpu_mode == REAL)) { + memset((char*)src, 0, length); + PrintDebug(" ignored (return zeroed buffer)\n"); - err = ramdisk_state->eops.read_port_ignore(port, src, length, dev); - } -#endif - - return length; + return length; } -int generic_interrupt(uint_t irq, - struct vm_device * dev) -{ - PrintDebug("generic: interrupt 0x%x - injecting into VM\n", irq); - - dev->vm->vm_ops.raise_irq(dev->vm, irq); +static int generic_interrupt(uint_t irq, struct vm_device * dev) { + PrintDebug("generic: interrupt 0x%x - injecting into VM\n", irq); - return 0; + v3_raise_irq(dev->vm, irq); + return 0; } -int generic_init_device(struct vm_device * dev) -{ - struct generic_internal *state = (struct generic_internal *)(dev->private_data); - uint_t i, j; +static int generic_init_device(struct vm_device * dev) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); + + PrintDebug("generic: init_device\n"); + generic_reset_device(dev); + + + if (PORT_HOOKS) { // This is a runtime conditional on a #define + struct port_range * tmp = NULL; + + list_for_each_entry(tmp, &(state->port_list), range_link) { + uint_t i = 0; + + PrintDebug("generic: hooking ports 0x%x to 0x%x as %x\n", + tmp->start, tmp->end, + (tmp->type == GENERIC_PRINT_AND_PASSTHROUGH) ? "print-and-passthrough" : "print-and-ignore"); + + for (i = tmp->start; i <= tmp->end; i++) { + if (tmp->type == GENERIC_PRINT_AND_PASSTHROUGH) { + + if (v3_dev_hook_io(dev, i, &generic_read_port_passthrough, &generic_write_port_passthrough)) { + PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", i); + } + + } else if (tmp->type == GENERIC_PRINT_AND_IGNORE) { + + if (v3_dev_hook_io(dev, i, &generic_read_port_ignore, &generic_write_port_ignore)) { + PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", i); + } + } + } + + } + } else { + PrintDebug("generic: hooking ports not supported\n"); + } - PrintDebug("generic: init_device\n"); - // Would read state here - generic_reset_device(dev); + if (MEM_HOOKS) { // This is a runtime conditional on a #define + struct mem_range * tmp; - for (i = 0; i < state->num_port_ranges; i++) { - PrintDebug("generic: hooking ports 0x%x to 0x%x as %x\n", state->port_ranges[i][0], state->port_ranges[i][1], state->port_ranges[i][2]==GENERIC_PRINT_AND_PASSTHROUGH ? "print-and-passthrough" : "print-and-ignore"); + list_for_each_entry(tmp, &(state->mem_list), range_link) { -#if PORT_HOOKS - for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) { - if (state->port_ranges[i][2]==GENERIC_PRINT_AND_PASSTHROUGH) { - if (dev_hook_io(dev, j, &generic_read_port_passthrough, &generic_write_port_passthrough)) { - PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", j); - } - } else if (state->port_ranges[i][2]==GENERIC_PRINT_AND_IGNORE) { - if (dev_hook_io(dev, j, &generic_read_port_ignore, &generic_write_port_ignore)) { - PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", j); + PrintDebug("generic: hooking addresses 0x%x to 0x%x\n", + tmp->start, tmp->end); + + + if (v3_dev_hook_mem(dev, tmp->start, tmp->end)) { + PrintDebug("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n", + tmp->start, tmp->end); + } } - } + } else { + PrintDebug("generic: hooking addresses not supported\n"); } -#else - PrintDebug("generic: hooking ports not supported\n"); -#endif - } - for (i = 0; i < state->num_address_ranges; i++) { - PrintDebug("generic: hooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]); - -#if MEM_HOOKS - if (dev_hook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) { - PrintDebug("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n", - state->address_ranges[i][0], state->address_ranges[i][1]); - } -#else - PrintDebug("generic: hooking addresses not supported\n"); -#endif - } - for (i = 0; i < state->num_irq_ranges; i++) { - PrintDebug("generic: hooking irqs 0x%x to 0x%x\n",state->irq_ranges[i][0],state->irq_ranges[i][1]); + if (IRQ_HOOKS) { // This is a runtime conditional on a #define + struct irq_range * tmp; + + list_for_each_entry(tmp, &(state->irq_list), range_link) { + uint_t i; + + PrintDebug("generic: hooking irqs 0x%x to 0x%x\n", + tmp->start, tmp->end); + + for (i = tmp->start; i <= tmp->end; i++) { + if (v3_dev_hook_irq(dev, i, &generic_interrupt)) { + PrintDebug("generic: can't hook irq 0x%x (already hooked?)\n", i); + } + } -#if IRQ_HOOKS - for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) { - if (dev_hook_irq(dev, j, &generic_interrupt)) { - PrintDebug("generic: can't hook irq 0x%x (already hooked?)\n", j); - } + } + } else { + PrintDebug("generic: hooking irqs not supported\n"); } -#else - PrintDebug("generic: hooking irqs not supported\n"); -#endif - - } - -#ifdef RAMDISK_BOOT - ramdisk_state->cops.init(ramdisk_state, dev); -#endif - return 0; + return 0; } -int generic_deinit_device(struct vm_device *dev) -{ - struct generic_internal *state = (struct generic_internal *)(dev->private_data); - uint_t i, j; - - PrintDebug("generic: deinit_device\n"); +static int generic_deinit_device(struct vm_device * dev) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); -#ifdef RAMDISK_BOOT - ramdisk_state->cops.close(ramdisk_state); - -#endif + PrintDebug("generic: deinit_device\n"); - for (i = 0; i < state->num_irq_ranges; i++) { - PrintDebug("generic: unhooking irqs 0x%x to 0x%x\n", state->irq_ranges[i][0], state->irq_ranges[i][1]); -#if IRQ_HOOKS - for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) { - if (dev_unhook_irq(dev, j)) { - PrintDebug("generic: can't unhook irq 0x%x (already unhooked?)\n",j); - } + if (IRQ_HOOKS) { // This is a runtime conditional on a #define + struct irq_range * tmp; + struct irq_range * cur; + + list_for_each_entry_safe(cur, tmp, &(state->irq_list), range_link) { + uint_t i; + + PrintDebug("generic: unhooking irqs 0x%x to 0x%x\n", + cur->start, cur->end); + + + for (i = cur->start; i <= cur->end; i++) { + if (v3_dev_unhook_irq(dev, i)) { + PrintDebug("generic: can't unhook irq 0x%x (already unhooked?)\n", i); + } + } + + list_del(&(cur->range_link)); + state->num_irq_ranges--; + V3_Free(cur); + } + } else { + PrintDebug("generic: unhooking irqs not supported\n"); } -#else - PrintDebug("generic: unhooking irqs not supported\n"); -#endif - } - for (i = 0; i < state->num_address_ranges; i++) { - PrintDebug("generic: unhooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]); + if (MEM_HOOKS) { + struct mem_range * tmp; + struct mem_range * cur; + + list_for_each_entry_safe(cur, tmp, &(state->mem_list), range_link) { -#if MEM_HOOKS - if (dev_unhook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) { - PrintDebug("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n", - state->address_ranges[i][0], state->address_ranges[i][1]); - } -#else - PrintDebug("generic: unhooking addresses not supported\n"); -#endif + PrintDebug("generic: unhooking addresses 0x%x to 0x%x\n", + cur->start, cur->end); - } + if (v3_dev_unhook_mem(dev, cur->start, cur->end)) { + PrintDebug("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n", + cur->start, cur->end); + } - for (i = 0; i < state->num_port_ranges; i++) { - PrintDebug("generic: unhooking ports 0x%x to 0x%x\n",state->port_ranges[i][0],state->port_ranges[i][1]); + list_del(&(cur->range_link)); + state->num_mem_ranges--; + V3_Free(cur); + } + } else { + PrintDebug("generic: unhooking addresses not supported\n"); + } + -#if PORT_HOOKS - for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) { - if (dev_unhook_io(dev, j)) { - PrintDebug("generic: can't unhook port 0x%x (already unhooked?)\n", j); - } + if (PORT_HOOKS) { + struct port_range * tmp; + struct port_range * cur; + + list_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) { + uint_t i; + + PrintDebug("generic: unhooking ports 0x%x to 0x%x\n", + cur->start, cur->end); + + for (i = cur->start; i <= cur->end; i++) { + if (v3_dev_unhook_io(dev, i)) { + PrintDebug("generic: can't unhook port 0x%x (already unhooked?)\n", i); + } + } + + list_del(&(cur->range_link)); + state->num_port_ranges--; + V3_Free(cur); + } + } else { + PrintDebug("generic: unhooking ports not supported\n"); } -#else - PrintDebug("generic: unhooking ports not supported\n"); -#endif - } - generic_reset_device(dev); - return 0; + + generic_reset_device(dev); + return 0; } @@ -373,87 +383,96 @@ int generic_deinit_device(struct vm_device *dev) static struct vm_device_ops dev_ops = { - .init = generic_init_device, - .deinit = generic_deinit_device, - .reset = generic_reset_device, - .start = generic_start_device, - .stop = generic_stop_device, + .init = generic_init_device, + .deinit = generic_deinit_device, + .reset = generic_reset_device, + .start = generic_start_device, + .stop = generic_stop_device, }; -struct vm_device *create_generic(generic_port_range_type port_ranges[], - generic_address_range_type address_ranges[], - generic_irq_range_type irq_ranges[]) -{ - struct generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); - int i; - uint_t num_port_ranges, num_address_ranges, num_irq_ranges; +int v3_generic_add_port_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { - num_port_ranges=0; - if (port_ranges!=NULL) { - i=0; - while (port_ranges[i]!=NULL && - !(port_ranges[i][0]==0 && port_ranges[i][1]==0 && port_ranges[i][2]==0)) - { num_port_ranges++; i++; } - } + if (PORT_HOOKS) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); - - num_address_ranges=0; - if (address_ranges!=NULL) { - i=0; - while (address_ranges[i]!=NULL && - !(address_ranges[i][0]==0 && address_ranges[i][1]==0 && address_ranges[i][2]==0)) - { num_address_ranges++; i++; } - } - - num_irq_ranges=0; - if (irq_ranges!=NULL) { - i=0; - while (irq_ranges[i]!=NULL && - !(irq_ranges[i][0]==0 && irq_ranges[i][1]==0 && irq_ranges[i][2]==0) ) - { num_irq_ranges++; i++; } - } + struct port_range * range = (struct port_range *)V3_Malloc(sizeof(struct port_range)); + range->start = start; + range->end = end; + range->type = type; + + + PrintDebug("generic: Adding Port Range: 0x%x to 0x%x as %x\n", + range->start, range->end, + (range->type == GENERIC_PRINT_AND_PASSTHROUGH) ? "print-and-passthrough" : "print-and-ignore"); + list_add(&(range->range_link), &(state->port_list)); + state->num_port_ranges++; + } else { + PrintDebug("generic: hooking IO ports not supported\n"); + return -1; + } - generic_state->num_port_ranges = num_port_ranges; + return 0; +} - if (num_port_ranges > 0) { - generic_state->port_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_port_ranges); - memcpy(generic_state->port_ranges, port_ranges, sizeof(generic_port_range_type) * num_port_ranges); - } else { - generic_state->port_ranges = NULL; - } +int v3_generic_add_mem_range(struct vm_device * dev, void * start, void * end, uint_t type) { + if (MEM_HOOKS) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); + + struct mem_range * range = (struct mem_range *)V3_Malloc(sizeof(struct mem_range)); + range->start = start; + range->end = end; + range->type = type; + + list_add(&(range->range_link), &(state->port_list)); + state->num_mem_ranges++; + } else { + PrintDebug("generic: hooking memory not supported\n"); + return -1; + } - generic_state->num_address_ranges = num_address_ranges; + return 0; +} - if (num_address_ranges > 0) { - generic_state->address_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_address_ranges); - memcpy(generic_state->address_ranges, address_ranges, sizeof(generic_address_range_type) * num_address_ranges); - } else { - generic_state->address_ranges = NULL; - } +int v3_generic_add_irq_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { - generic_state->num_irq_ranges = num_irq_ranges; + if (IRQ_HOOKS) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); + + struct irq_range * range = (struct irq_range *)V3_Malloc(sizeof(struct irq_range)); + range->start = start; + range->end = end; + range->type = type; + + list_add(&(range->range_link), &(state->port_list)); + state->num_irq_ranges++; + } else { + PrintDebug("generic: hooking IRQs not supported\n"); + return -1; + } - if (num_irq_ranges > 0) { - generic_state->irq_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_irq_ranges); - memcpy(generic_state->irq_ranges, irq_ranges, sizeof(generic_irq_range_type) * num_port_ranges); - } else { - generic_state->irq_ranges = NULL; - } + return 0; +} -#ifdef RAMDISK_BOOT - ramdisk_state = create_ramdisk(); - V3_ASSERT(ramdisk_state != NULL); -#endif +struct vm_device * v3_create_generic() { + struct generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); + + generic_state->num_port_ranges = 0; + generic_state->num_mem_ranges = 0; + generic_state->num_irq_ranges = 0; - struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state); + INIT_LIST_HEAD(&(generic_state->port_list)); + INIT_LIST_HEAD(&(generic_state->mem_list)); + INIT_LIST_HEAD(&(generic_state->irq_list)); + + struct vm_device * device = v3_create_device("GENERIC", &dev_ops, generic_state); - return device; + return device; }