X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=314248820b01300d9c742ee9fa29d5bbbbe0a370;hb=fe9b69407ae9ac7aeb6a9d1500c89d48953864ac;hp=e397cd2fa8817b9100c7b9dd911b22a28b3201b2;hpb=4f7c3b759e3889870c5b5e7d09b3ffcc168e5632;p=palacios.git diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index e397cd2..3142488 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -1,462 +1,256 @@ -/* Northwestern University */ -/* (c) 2008, Peter Dinda */ +/* + * 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; }; - -#ifdef RAMDISK_BOOT -#include -//ramdisk_state -static struct ramdisk_t *ramdisk_state; -#endif - - - - -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; -} - - -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; +struct port_range { + uint_t start; + uint_t end; + generic_mode_t mode; + struct list_head range_link; +}; - 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)) { +static int generic_write_port_passthrough(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + uint_t i; - - err = ramdisk_state->eops.write_port(port, src, length, dev); + PrintDebug("generic: writing 0x"); - }else{ -#endif - - 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", ((uint8_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(" to port 0x%x ... ", port); - PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - -#ifdef RAMDISK_BOOT + switch (length) { + case 1: + v3_outb(port, ((uint8_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, ((uint8_t *)src)[i]); + } + } - uint_t err; + 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(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + 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); - } - }//switch length -#ifdef RAMDISK_BOOT - }//else not ramdisk -#endif + case 1: + ((uint8_t *)src)[0] = v3_inb(port); + break; + case 2: + ((uint16_t *)src)[0] = v3_inw(port); + break; + case 4: + ((uint32_t *)src)[0] = v3_indw(port); + break; + default: + for (i = 0; i < length; i++) { + ((uint8_t *)src)[i] = v3_inb(port); + } + } - 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", ((uint8_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(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + int 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", ((uint8_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); +static int generic_read_port_ignore(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { - memset((char*)src,0,length); - PrintDebug(" ignored (return zeroed buffer)\n"); + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); -#ifdef RAMDISK_BOOT + memset((uint8_t *)src, 0, length); + PrintDebug(" ignored (return zeroed buffer)\n"); - uint_t err; - - if (((port >= 0x3e8 && port <= 0x3ef) || - (port >= 0x2e8 && port <= 0x2ef)) - && (dev->vm->cpu_mode == REAL)) { - - 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); - return 0; +static int generic_free(struct generic_internal * state) { + PrintDebug("generic: deinit_device\n"); + V3_Free(state); + 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 - 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"); -#endif - - } +static struct v3_device_ops dev_ops = { + .free = (int (*)(void *))generic_free, +}; - 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]); +static int add_port_range(struct vm_device * dev, uint_t start, uint_t end, generic_mode_t mode) { + uint_t i = 0; -#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); - } + 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; + } + } } -#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"); -#ifdef RAMDISK_BOOT - ramdisk_state->cops.close(ramdisk_state); - -#endif - 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); - } - } -#else - PrintDebug("generic: unhooking irqs not supported\n"); -#endif +static int generic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) { + struct generic_internal * state = NULL; + char * dev_id = v3_cfg_val(cfg, "ID"); + v3_cfg_tree_t * port_cfg = v3_cfg_subtree(cfg, "ports"); - } - 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]); + state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); -#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]); + if (state == NULL) { + PrintError("Could not allocate generic state\n"); + return -1; } -#else - PrintDebug("generic: unhooking addresses not supported\n"); -#endif + + memset(state, 0, sizeof(struct generic_internal)); + + struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, state); - } + if (dev == NULL) { + PrintError("Could not attach device %s\n", dev_id); + V3_Free(state); + return -1; + } - 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]); + PrintDebug("generic: init_device\n"); + + // 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); + v3_remove_device(dev); + return -1; + } + + if (add_port_range(dev, start, end, mode) == -1) { + PrintError("Could not add port range %d-%d\n", start, end); + v3_remove_device(dev); + return -1; + } -#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); - } + port_cfg = v3_cfg_next_branch(port_cfg); } -#else - PrintDebug("generic: unhooking ports not supported\n"); -#endif - } - generic_reset_device(dev); - return 0; + 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, -}; - - - - -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; - - 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++; } - } - - - 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++; } - } - - - 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) { - 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; - } - - - generic_state->num_irq_ranges = num_irq_ranges; - - 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; - } - -#ifdef RAMDISK_BOOT - - ramdisk_state = create_ramdisk(); - V3_ASSERT(ramdisk_state != NULL); - -#endif - - struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state); - - return device; -} +device_register("GENERIC", generic_init)