X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=905a9a7657fa9bd6515f6b6301d09cdc661cd52d;hb=6eecf583b522147ef13faabb634562f6f23bb712;hp=7c24fd26a3ea56e5bcfb9e92bb176f3bc3076360;hpb=39857d6a3feab71eed4c610b394c0ac58f86f550;p=palacios.git diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index 7c24fd2..905a9a7 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -1,15 +1,17 @@ +/* (c) 2008, Peter Dinda */ +/* (c) 2008, The V3VEE Project */ + + #include #include #include -#include +#include -#define GENERIC_DEBUG 1 -#if GENERIC_DEBUG -#define GENERIC_DEBUG_PRINT(first, rest...) PrintDebug(first, ##rest) -#else -#define GENERIC_DEBUG_PRINT(first, rest...) +#ifndef DEBUG_GENERIC +#undef PrintDebug +#define PrintDebug(fmt, args...) #endif @@ -17,25 +19,43 @@ #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; }; - - +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) { - GENERIC_DEBUG_PRINT("generic: reset device\n"); + PrintDebug("generic: reset device\n"); return 0; @@ -45,217 +65,309 @@ int generic_reset_device(struct vm_device * dev) -int generic_start_device(struct vm_device *dev) +int generic_start_device(struct vm_device * dev) { - GENERIC_DEBUG_PRINT("generic: start device\n"); + PrintDebug("generic: start device\n"); return 0; } -int generic_stop_device(struct vm_device *dev) +int generic_stop_device(struct vm_device * dev) { - GENERIC_DEBUG_PRINT("generic: stop device\n"); + PrintDebug("generic: stop device\n"); return 0; } -int generic_write_port(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) +int generic_write_port_passthrough(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { uint_t i; - GENERIC_DEBUG_PRINT("generic: writing 0x"); + PrintDebug("generic: writing 0x"); for (i = 0; i < length; i++) { - GENERIC_DEBUG_PRINT("%x", ((uchar_t*)src)[i]); + PrintDebug("%x", ((uchar_t*)src)[i]); } - GENERIC_DEBUG_PRINT(" to port 0x%x ... ", port); + PrintDebug(" to port 0x%x ... ", port); + switch (length) { case 1: - Out_Byte(port,((uchar_t*)src)[0]); + + v3_outb(port,((uchar_t*)src)[0]); break; case 2: - Out_Word(port,((ushort_t*)src)[0]); + v3_outw(port,((ushort_t*)src)[0]); break; case 4: - Out_DWord(port,((uint_t*)src)[0]); + v3_outdw(port,((uint_t*)src)[0]); + break; default: for (i = 0; i < length; i++) { - Out_Byte(port, ((uchar_t*)src)[i]); + v3_outb(port, ((uchar_t*)src)[i]); } - } + } //switch length + - GENERIC_DEBUG_PRINT(" done\n"); + PrintDebug(" done\n"); return length; } -int generic_read_port(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) +int generic_read_port_passthrough(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) { uint_t i; - GENERIC_DEBUG_PRINT("generic: reading 0x%x bytes from port 0x%x ...", length, port); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + + + switch (length) { + 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 - 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); - } + PrintDebug(" done ... read 0x"); + + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); } - GENERIC_DEBUG_PRINT(" done ... read 0x"); + PrintDebug("\n"); + + return length; +} + +int generic_write_port_ignore(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++) { - GENERIC_DEBUG_PRINT("%x", ((uchar_t*)src)[i]); + PrintDebug("%x", ((uchar_t*)src)[i]); } + + PrintDebug(" to port 0x%x ... ignored\n", port); + + return length; +} + +int generic_read_port_ignore(ushort_t port, + void * src, + uint_t length, + struct vm_device * dev) +{ - GENERIC_DEBUG_PRINT("\n"); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + + memset((char*)src, 0, length); + PrintDebug(" ignored (return zeroed buffer)\n"); return length; } -int generic_interrupt(uint_t irq, - struct vm_device * dev) -{ +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); return 0; - } -int generic_init_device(struct vm_device * dev) -{ - struct generic_internal *state = (struct generic_internal *)(dev->private_data); - uint_t i, j; - - GENERIC_DEBUG_PRINT("generic: init_device\n"); - - // Would read state here +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); - for (i = 0; i < state->num_port_ranges; i++) { - GENERIC_DEBUG_PRINT("generic: hooking ports 0x%x to 0x%x\n", state->port_ranges[i][0], state->port_ranges[i][1]); -#if PORT_HOOKS - for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) { - if (dev_hook_io(dev, j, &generic_read_port, &generic_write_port)) { - GENERIC_DEBUG_PRINT("generic: can't hook port 0x%x (already hooked?)\n", j); + 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 (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 (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 - GENERIC_DEBUG_PRINT("generic: hooking ports not supported\n"); -#endif + } + } else { + PrintDebug("generic: hooking ports not supported\n"); } - for (i = 0; i < state->num_address_ranges; i++) { - GENERIC_DEBUG_PRINT("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])) { - GENERIC_DEBUG_PRINT("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n", - state->address_ranges[i][0], state->address_ranges[i][1]); - } -#else - GENERIC_DEBUG_PRINT("generic: hooking addresses not supported\n"); -#endif - } + if (MEM_HOOKS) { // This is a runtime conditional on a #define + struct mem_range * tmp; - for (i = 0; i < state->num_irq_ranges; i++) { - GENERIC_DEBUG_PRINT("generic: hooking irqs 0x%x to 0x%x\n",state->irq_ranges[i][0],state->irq_ranges[i][1]); + list_for_each_entry(tmp, &(state->mem_list), range_link) { -#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)) { - GENERIC_DEBUG_PRINT("generic: can't hook irq 0x%x (already hooked?)\n", j); + PrintDebug("generic: hooking addresses 0x%x to 0x%x\n", + tmp->start, tmp->end); + + + if (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 - GENERIC_DEBUG_PRINT("generic: hooking irqs not supported\n"); -#endif + } else { + PrintDebug("generic: hooking addresses not supported\n"); + } + + + + 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 (dev_hook_irq(dev, i, &generic_interrupt)) { + PrintDebug("generic: can't hook irq 0x%x (already hooked?)\n", i); + } + } + + } + } else { + PrintDebug("generic: hooking irqs not supported\n"); } + + return 0; } -int generic_deinit_device(struct vm_device *dev) -{ - struct generic_internal *state = (struct generic_internal *)(dev->private_data); - uint_t i, j; +int generic_deinit_device(struct vm_device * dev) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); - GENERIC_DEBUG_PRINT("generic: deinit_device\n"); - for (i = 0; i < state->num_irq_ranges; i++) { - GENERIC_DEBUG_PRINT("generic: unhooking irqs 0x%x to 0x%x\n", state->irq_ranges[i][0], state->irq_ranges[i][1]); + PrintDebug("generic: deinit_device\n"); -#if IRQ_HOOKS - for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) { - if (dev_unhook_irq(dev, j)) { - GENERIC_DEBUG_PRINT("generic: can't unhook irq 0x%x (already unhooked?)\n",j); - } - } -#else - GENERIC_DEBUG_PRINT("generic: unhooking irqs not supported\n"); -#endif - } + 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; - for (i = 0; i < state->num_address_ranges; i++) { - GENERIC_DEBUG_PRINT("generic: unhooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]); + PrintDebug("generic: unhooking irqs 0x%x to 0x%x\n", + cur->start, cur->end); + -#if MEM_HOOKS - if (dev_unhook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) { - GENERIC_DEBUG_PRINT("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n", - state->address_ranges[i][0], state->address_ranges[i][1]); - } -#else - GENERIC_DEBUG_PRINT("generic: unhooking addresses not supported\n"); -#endif + for (i = cur->start; i <= cur->end; i++) { + if (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"); } - for (i = 0; i < state->num_port_ranges; i++) { - GENERIC_DEBUG_PRINT("generic: unhooking ports 0x%x to 0x%x\n",state->port_ranges[i][0],state->port_ranges[i][1]); -#if PORT_HOOKS - for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) { - if (dev_unhook_io(dev, j)) { - GENERIC_DEBUG_PRINT("generic: can't unhook port 0x%x (already unhooked?)\n", j); + if (MEM_HOOKS) { + struct mem_range * tmp; + struct mem_range * cur; + + list_for_each_entry_safe(cur, tmp, &(state->mem_list), range_link) { + + PrintDebug("generic: unhooking addresses 0x%x to 0x%x\n", + cur->start, cur->end); + + if (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); } + + list_del(&(cur->range_link)); + state->num_mem_ranges--; + V3_Free(cur); } -#else - GENERIC_DEBUG_PRINT("generic: unhooking ports not supported\n"); -#endif + } else { + PrintDebug("generic: unhooking addresses not supported\n"); + } + + 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 (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"); } + + generic_reset_device(dev); return 0; } @@ -275,47 +387,86 @@ static struct vm_device_ops dev_ops = { -struct vm_device *create_generic(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 generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); - +int v3_generic_add_port_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { - generic_state->num_port_ranges = num_port_ranges; + if (PORT_HOOKS) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); - 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); + 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 { - generic_state->port_ranges = NULL; + PrintDebug("generic: hooking IO ports not supported\n"); + return -1; } + return 0; +} - generic_state->num_address_ranges = num_address_ranges; +int v3_generic_add_mem_range(struct vm_device * dev, void * start, void * end, uint_t type) { - 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); + 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 { - generic_state->address_ranges = NULL; + PrintDebug("generic: hooking memory not supported\n"); + return -1; } + return 0; +} + - generic_state->num_irq_ranges = num_irq_ranges; +int v3_generic_add_irq_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { - 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); + 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 { - generic_state->irq_ranges = NULL; + PrintDebug("generic: hooking IRQs not supported\n"); + return -1; } + return 0; +} + - struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state); + +struct vm_device * 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; + + 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 = create_device("GENERIC", &dev_ops, generic_state); return device; }