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=9313055d3160fa9469ce857c3479a40a8e4120df;hb=123a1ba27ea09c8fa77a1b36ce625b43d7c48b14;hpb=37c18b2c2335a41c68c2f0b779fd2b7d51ab216d diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index 9313055..e4a00ff 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -19,21 +19,22 @@ * redistribute, and modify it as specified in the file "V3VEE_LICENSE". */ -#include #include #include #include +#include +#include - - -#ifndef DEBUG_GENERIC +#ifndef CONFIG_DEBUG_GENERIC #undef PrintDebug #define PrintDebug(fmt, args...) #endif -#define PORT_HOOKS 1 - +typedef enum {GENERIC_IGNORE, + GENERIC_PASSTHROUGH, + GENERIC_PRINT_AND_PASSTHROUGH, + GENERIC_PRINT_AND_IGNORE} generic_mode_t; struct generic_internal { struct list_head port_list; @@ -45,7 +46,7 @@ struct generic_internal { struct port_range { uint_t start; uint_t end; - uint_t type; + generic_mode_t mode; struct list_head range_link; }; @@ -75,10 +76,8 @@ static int generic_stop_device(struct vm_device * dev) { -static int generic_write_port_passthrough(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) { +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"); @@ -89,33 +88,29 @@ static int generic_write_port_passthrough(ushort_t port, PrintDebug(" to port 0x%x ... ", port); - switch (length) { case 1: v3_outb(port,((uchar_t*)src)[0]); break; case 2: - v3_outw(port,((ushort_t*)src)[0]); + v3_outw(port,((uint16_t*)src)[0]); break; case 4: - v3_outdw(port,((uint_t*)src)[0]); + v3_outdw(port,((uint32_t *)src)[0]); break; default: for (i = 0; i < length; i++) { - v3_outb(port, ((uchar_t*)src)[i]); + v3_outb(port, ((uchar_t *)src)[i]); } - } //switch length - + } PrintDebug(" done\n"); return length; } -static int generic_read_port_passthrough(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) { +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); @@ -126,7 +121,7 @@ static int generic_read_port_passthrough(ushort_t port, ((uchar_t*)src)[0] = v3_inb(port); break; case 2: - ((ushort_t*)src)[0] = v3_inw(port); + ((uint16_t*)src)[0] = v3_inw(port); break; case 4: ((uint_t*)src)[0] = v3_indw(port); @@ -135,7 +130,7 @@ static int generic_read_port_passthrough(ushort_t port, for (i = 0; i < length; i++) { ((uchar_t*)src)[i] = v3_inb(port); } - }//switch length + } PrintDebug(" done ... read 0x"); @@ -148,10 +143,8 @@ static int generic_read_port_passthrough(ushort_t port, return length; } -static int generic_write_port_ignore(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) { +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"); @@ -165,10 +158,8 @@ static int generic_write_port_ignore(ushort_t port, return length; } -static int generic_read_port_ignore(ushort_t port, - void * src, - uint_t length, - struct vm_device * dev) { +static int generic_read_port_ignore(uint16_t port, void * src, + uint_t length, struct vm_device * dev) { PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); @@ -184,35 +175,27 @@ static int generic_read_port_ignore(ushort_t port, 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; PrintDebug("generic: deinit_device\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 (v3_dev_unhook_io(dev, i)) { - PrintDebug("generic: can't unhook port 0x%x (already unhooked?)\n", i); - } - } + list_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) { + uint_t i; - list_del(&(cur->range_link)); - state->num_port_ranges--; - V3_Free(cur); + 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; @@ -232,81 +215,86 @@ static struct v3_device_ops dev_ops = { -int v3_generic_add_port_range(struct vm_device * dev, uint_t start, uint_t end, uint_t type) { - - if (PORT_HOOKS) { - struct generic_internal * state = (struct generic_internal *)(dev->private_data); +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; - struct port_range * range = (struct port_range *)V3_Malloc(sizeof(struct port_range)); - range->start = start; - range->end = end; - range->type = type; - + range->start = start; + range->end = end; + range->mode = mode; - 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"); + 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"); - list_add(&(range->range_link), &(state->port_list)); - state->num_port_ranges++; - } else { - PrintDebug("generic: hooking IO ports not supported\n"); - return -1; + 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; + } + } } + list_add(&(range->range_link), &(state->port_list)); + state->num_port_ranges++; + return 0; } -static int generic_init(struct guest_info * vm, void * cfg_data) { + +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)); - - state->num_port_ranges = 0; + char * name = v3_cfg_val(cfg, "name"); + + v3_cfg_tree_t * port_cfg = v3_cfg_subtree(cfg, "ports"); + INIT_LIST_HEAD(&(state->port_list)); - - struct vm_device * dev = v3_allocate_device("GENERIC", &dev_ops, state); + state->num_port_ranges = 0; + + struct vm_device * dev = v3_allocate_device(name, &dev_ops, state); if (v3_attach_device(vm, dev) == -1) { - PrintError("Could not attach device %s\n", "GENERIC"); + PrintError("Could not attach device %s\n", name); return -1; } 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 %s\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); - } - } - } - + // 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; } - } else { - PrintDebug("generic: hooking ports not supported\n"); + + if (add_port_range(dev, start, end, mode) == -1) { + PrintError("Could not add port range %d-%d\n", start, end); + return -1; + } + + port_cfg = v3_cfg_next_branch(port_cfg); }