X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=e4a00ff9d647ea2472d7afc6c4b044e8e5b4da44;hp=d9bf3ea7c721e2b749ef230d596d39c508740cf9;hb=123a1ba27ea09c8fa77a1b36ce625b43d7c48b14;hpb=44ca16e8c4976d51b5d740ec17caf07c779a5e7b diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index d9bf3ea..e4a00ff 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -1,430 +1,304 @@ -/* (c) 2008, Peter Dinda */ -/* (c) 2008, The V3VEE Project */ +/* + * 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 +#include +#include -#ifndef DEBUG_GENERIC +#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 +typedef enum {GENERIC_IGNORE, + GENERIC_PASSTHROUGH, + GENERIC_PRINT_AND_PASSTHROUGH, + GENERIC_PRINT_AND_IGNORE} generic_mode_t; 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; + generic_mode_t mode; + 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; +static int generic_write_port_passthrough(uint16_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]); - } - - PrintDebug(" to port 0x%x ... ", port); - - - 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 - - - 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); 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); - } - }//switch length - - PrintDebug(" done ... read 0x"); - - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } - - 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"); + case 1: + v3_outb(port,((uchar_t*)src)[0]); + break; + case 2: + v3_outw(port,((uint16_t*)src)[0]); + break; + case 4: + v3_outdw(port,((uint32_t *)src)[0]); + break; + default: + for (i = 0; i < length; i++) { + v3_outb(port, ((uchar_t *)src)[i]); + } + } - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } + PrintDebug(" done\n"); - PrintDebug(" to port 0x%x ... ", port); - - PrintDebug(" ignored\n"); - - 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"); - - return length; + return length; } +static int generic_read_port_passthrough(uint16_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); -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; - - PrintDebug("generic: init_device\n"); - - // Would read state here - - generic_reset_device(dev); - - 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"); - - if (PORT_HOOKS) { // This is a runtime conditional on a #define - 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); - } - - } - } - } else { - PrintDebug("generic: hooking ports not supported\n"); + switch (length) { + case 1: + ((uchar_t*)src)[0] = v3_inb(port); + break; + case 2: + ((uint16_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); + } } - } - - for (i = 0; i < state->num_address_ranges; i++) { + PrintDebug(" done ... read 0x"); - PrintDebug("generic: hooking addresses 0x%x to 0x%x\n", - state->address_ranges[i][0], state->address_ranges[i][1]); - - if (MEM_HOOKS) { // This is a runtime conditional on a #define - 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"); + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); } - } - for (i = 0; i < state->num_irq_ranges; i++) { + PrintDebug("\n"); - PrintDebug("generic: hooking irqs 0x%x to 0x%x\n", - state->irq_ranges[i][0], state->irq_ranges[i][1]); + return length; +} - if (IRQ_HOOKS) { // This is a runtime conditional on a #define - 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"); - } +static int generic_write_port_ignore(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { + uint_t i; - } + PrintDebug("generic: writing 0x"); - return 0; + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uchar_t*)src)[i]); + } + + PrintDebug(" to port 0x%x ... ignored\n", port); + + return length; } -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_read_port_ignore(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { - PrintDebug("generic: deinit_device\n"); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + memset((char*)src, 0, length); + PrintDebug(" ignored (return zeroed buffer)\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) { // This is a runtime conditional on a #define - 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); - } + return length; +} - } - } else { - PrintDebug("generic: unhooking irqs not supported\n"); - } - } - 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) { - 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]); +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; - } - } else { - PrintDebug("generic: unhooking addresses not supported\n"); - } - } + PrintDebug("generic: deinit_device\n"); - 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_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) { + uint_t i; - 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); + 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); + } } - } - } else { - PrintDebug("generic: unhooking ports not supported\n"); - } - } + list_del(&(cur->range_link)); + state->num_port_ranges--; + V3_Free(cur); + } - 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[], - 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; - uint_t num_address_ranges; - uint_t num_irq_ranges; - +static int add_port_range(struct vm_device * dev, uint_t start, uint_t end, generic_mode_t mode) { + 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; - 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++; - } - } + range->start = start; + range->end = end; + range->mode = mode; + + PrintDebug("generic: Adding Port Range: 0x%x to 0x%x as %s\n", + start, end, + (mode == GENERIC_PRINT_AND_PASSTHROUGH) ? "print-and-passthrough" : "print-and-ignore"); + + for (i = start; i <= end; i++) { + if (mode == 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 (mode == 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; + } + } + } - - 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++; - } - } + 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 = 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; - } - generic_state->num_address_ranges = num_address_ranges; - if (num_address_ranges > 0) { +static int generic_init(struct guest_info * vm, v3_cfg_tree_t * cfg) { + struct generic_internal * state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); + char * name = v3_cfg_val(cfg, "name"); - 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)); + v3_cfg_tree_t * port_cfg = v3_cfg_subtree(cfg, "ports"); - } else { - generic_state->address_ranges = NULL; - } + INIT_LIST_HEAD(&(state->port_list)); + state->num_port_ranges = 0; - generic_state->num_irq_ranges = num_irq_ranges; + + struct vm_device * dev = v3_allocate_device(name, &dev_ops, state); - if (num_irq_ranges > 0) { + if (v3_attach_device(vm, dev) == -1) { + PrintError("Could not attach device %s\n", name); + return -1; + } - 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)); + PrintDebug("generic: init_device\n"); + generic_reset_device(dev); + + // scan port list.... + while (port_cfg) { + uint16_t start = atox(v3_cfg_val(port_cfg, "start")); + uint16_t end = atox(v3_cfg_val(port_cfg, "end")); + char * mode_str = v3_cfg_val(port_cfg, "mode"); + generic_mode_t mode = GENERIC_IGNORE; + + if (strcasecmp(mode_str, "print_and_ignore") == 0) { + mode = GENERIC_PRINT_AND_IGNORE; + } else if (strcasecmp(mode_str, "print_and_passthrough") == 0) { + mode = GENERIC_PRINT_AND_PASSTHROUGH; + } else { + PrintError("Invalid Mode %s\n", mode_str); + return -1; + } + + if (add_port_range(dev, start, end, mode) == -1) { + PrintError("Could not add port range %d-%d\n", start, end); + return -1; + } - } else { - generic_state->irq_ranges = NULL; - } + port_cfg = v3_cfg_next_branch(port_cfg); + } - struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state); - return device; + return 0; } + +device_register("GENERIC", generic_init)