X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=c6dd8d61f0a67aa7276e4bd0afc57ac5534d46f7;hb=0e097100a26bc43eb8964734fa43130fc4c71429;hp=269840e1e5529b39d72dfe84a5001fab99626133;hpb=028d9b71d4a4e6d49a22ad5904b6dd2f8c596a26;p=palacios.git diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index 269840e..c6dd8d6 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -1,282 +1,270 @@ +/* + * 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 -#define GENERIC_DEBUG 1 - -#if GENERIC_DEBUG -#define GENERIC_DEBUG_PRINT(first, rest...) do { SerialPrint(first, ## rest ); } while (0) -#else -#define GENERIC_DEBUG_PRINT(first, rest...) +#ifndef CONFIG_DEBUG_GENERIC +#undef PrintDebug +#define PrintDebug(fmt, args...) #endif -#define PORT_HOOKS 1 -#define MEM_HOOKS 0 // not yet implmented in device model -#define IRQ_HOOKS 0 // not yet implemented in device model - -extern struct vmm_os_hooks *os_hooks; - -extern void SerialPrint(const char *format, ...); - - - 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 port_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"); - - 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) -{ - GENERIC_DEBUG_PRINT("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) -{ - GENERIC_DEBUG_PRINT("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(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) -{ - uint_t i; +static int generic_write_port_passthrough(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { + uint_t i; - GENERIC_DEBUG_PRINT("generic: writing 0x"); - for (i=0;ivm->vm_ops.raise_irq(dev->vm,irq,0); + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); + } - return 0; + PrintDebug("\n"); + return length; } +static int generic_write_port_ignore(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { + uint_t i; -int generic_init_device(struct vm_device * dev) -{ - struct generic_internal *state = (struct generic_internal *) dev->private_data; - uint_t i,j; + PrintDebug("generic: writing 0x"); - GENERIC_DEBUG_PRINT("generic: init_device\n"); + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); + } + + PrintDebug(" to port 0x%x ... ignored\n", port); + + return length; +} - // Would read state here +static int generic_read_port_ignore(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { - generic_reset_device(dev); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - for (i=0;inum_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); - } - } -#else - GENERIC_DEBUG_PRINT("generic: hooking ports not supported\n"); -#endif + memset((char*)src, 0, length); + PrintDebug(" ignored (return zeroed buffer)\n"); - } + return length; +} - for (i=0;inum_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 - } - for (i=0;inum_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]); -#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); - } - } -#else - GENERIC_DEBUG_PRINT("generic: hooking irqs not supported\n"); -#endif - } - return 0; -} -int generic_deinit_device(struct vm_device *dev) -{ - struct generic_internal *state = (struct generic_internal *) dev->private_data; - uint_t i,j; +static int generic_free(struct vm_device * dev) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); + struct port_range * tmp; + struct port_range * cur; - GENERIC_DEBUG_PRINT("generic: deinit_device\n"); + PrintDebug("generic: deinit_device\n"); - for (i=0;inum_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]); -#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 + 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); + } + } - for (i=0;inum_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]); -#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=0;inum_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); - } + list_del(&(cur->range_link)); + state->num_port_ranges--; + V3_Free(cur); } -#else - GENERIC_DEBUG_PRINT("generic: unhooking ports not supported\n"); -#endif - - } - generic_reset_device(dev); - return 0; + generic_reset_device(dev); + return 0; } -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, +static struct v3_device_ops dev_ops = { + .free = generic_free, + .reset = generic_reset_device, + .start = generic_start_device, + .stop = generic_stop_device, }; -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 = os_hooks->malloc(sizeof(struct generic_internal)); +int v3_generic_add_port_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { + struct generic_internal * state = (struct generic_internal *)(dev->private_data); + struct port_range * range = (struct port_range *)V3_Malloc(sizeof(struct port_range)); + uint_t i = 0; + + range->start = start; + range->end = end; + range->type = type; + + PrintDebug("generic: Adding Port Range: 0x%x to 0x%x as %s\n", + range->start, range->end, + (range->type == GENERIC_PRINT_AND_PASSTHROUGH) ? "print-and-passthrough" : "print-and-ignore"); + + for (i = start; i <= end; i++) { + if (type == GENERIC_PRINT_AND_PASSTHROUGH) { + if (v3_dev_hook_io(dev, i, &generic_read_port_passthrough, &generic_write_port_passthrough) == -1) { + PrintError("generic: can't hook port 0x%x (already hooked?)\n", i); + return -1; + } + } else if (type == GENERIC_PRINT_AND_IGNORE) { + if (v3_dev_hook_io(dev, i, &generic_read_port_ignore, &generic_write_port_ignore) == -1) { + PrintError("generic: can't hook port 0x%x (already hooked?)\n", i); + return -1; + } + } + } + + list_add(&(range->range_link), &(state->port_list)); + state->num_port_ranges++; + + return 0; +} - generic_state->num_port_ranges=num_port_ranges; - if (num_port_ranges>0) { - generic_state->port_ranges = os_hooks->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; - } - generic_state->num_address_ranges=num_address_ranges; - if (num_address_ranges>0) { - generic_state->address_ranges = os_hooks->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; - } - generic_state->num_irq_ranges=num_irq_ranges; - if (num_irq_ranges>0) { - generic_state->irq_ranges = os_hooks->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; - } - struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state); +static int generic_init(struct guest_info * vm, void * cfg_data) { + struct generic_internal * state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); + + INIT_LIST_HEAD(&(state->port_list)); + state->num_port_ranges = 0; + + struct vm_device * dev = v3_allocate_device("GENERIC", &dev_ops, state); + + if (v3_attach_device(vm, dev) == -1) { + PrintError("Could not attach device %s\n", "GENERIC"); + return -1; + } + + PrintDebug("generic: init_device\n"); + generic_reset_device(dev); - return device; + return 0; } + +device_register("GENERIC", generic_init)