X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fgeneric.c;h=b7d1a181001368de960bf16ee7e17a680bb2341a;hb=a71f35bcb2dc587326be18345adb1ad1d81b9435;hp=c6dd8d61f0a67aa7276e4bd0afc57ac5534d46f7;hpb=3a4e54ec208ea3589963b410d2d73292bbc4a8fe;p=palacios-OLD.git diff --git a/palacios/src/devices/generic.c b/palacios/src/devices/generic.c index c6dd8d6..b7d1a18 100644 --- a/palacios/src/devices/generic.c +++ b/palacios/src/devices/generic.c @@ -19,12 +19,11 @@ * redistribute, and modify it as specified in the file "V3VEE_LICENSE". */ -#include #include #include #include - - +#include +#include #ifndef CONFIG_DEBUG_GENERIC #undef PrintDebug @@ -32,168 +31,155 @@ #endif -struct generic_internal { - struct list_head port_list; - uint_t num_port_ranges; +typedef enum {GENERIC_IGNORE, + GENERIC_PASSTHROUGH, + GENERIC_PRINT_AND_PASSTHROUGH, + GENERIC_PRINT_AND_IGNORE} generic_mode_t; +struct generic_internal { }; -struct port_range { - uint_t start; - uint_t end; - uint_t type; - struct list_head range_link; -}; - - - - -static int generic_reset_device(struct vm_device * dev) { - PrintDebug("generic: reset device\n"); - return 0; -} - - - -static int generic_start_device(struct vm_device * dev) { - PrintDebug("generic: start device\n"); - return 0; -} - - -static int generic_stop_device(struct vm_device * dev) { - PrintDebug("generic: stop device\n"); - return 0; -} - - - - -static int generic_write_port_passthrough(uint16_t port, void * src, - uint_t length, struct vm_device * dev) { +static int generic_write_port_passthrough(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { uint_t i; - 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: - v3_outb(port,((uchar_t*)src)[0]); + v3_outb(port, ((uint8_t *)src)[0]); break; case 2: - v3_outw(port,((uint16_t*)src)[0]); + v3_outw(port, ((uint16_t *)src)[0]); break; case 4: - v3_outdw(port,((uint32_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, ((uint8_t *)src)[i]); } } - PrintDebug(" done\n"); - return length; } -static int generic_read_port_passthrough(uint16_t port, void * src, - uint_t length, struct vm_device * dev) { +static int generic_write_port_print_and_passthrough(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { uint_t i; + int rc; - PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + PrintDebug("generic: writing 0x"); + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uint8_t *)src)[i]); + } + + PrintDebug(" to port 0x%x ... ", port); + + rc=generic_write_port_passthrough(core,port,src,length,priv_data); + + PrintDebug(" done\n"); + + return rc; +} + +static int generic_read_port_passthrough(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + uint_t i; switch (length) { case 1: - ((uchar_t*)src)[0] = v3_inb(port); + ((uint8_t *)src)[0] = v3_inb(port); break; case 2: - ((uint16_t*)src)[0] = v3_inw(port); + ((uint16_t *)src)[0] = v3_inw(port); break; case 4: - ((uint_t*)src)[0] = v3_indw(port); + ((uint32_t *)src)[0] = v3_indw(port); break; default: for (i = 0; i < length; i++) { - ((uchar_t*)src)[i] = v3_inb(port); + ((uint8_t *)src)[i] = v3_inb(port); } } + return length; +} + +static int generic_read_port_print_and_passthrough(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + uint_t i; + int rc; + + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); + + + rc=generic_read_port_passthrough(core,port,src,length,priv_data); + PrintDebug(" done ... read 0x"); - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); + for (i = 0; i < rc; i++) { + PrintDebug("%x", ((uint8_t *)src)[i]); } PrintDebug("\n"); - return length; + return rc; } -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"); +static int generic_read_port_ignore(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + + memset((uint8_t *)src, 0, length); - for (i = 0; i < length; i++) { - PrintDebug("%x", ((uchar_t*)src)[i]); - } - - PrintDebug(" to port 0x%x ... ignored\n", port); - return length; } -static int generic_read_port_ignore(uint16_t port, void * src, - uint_t length, struct vm_device * dev) { - +static int generic_read_port_print_and_ignore(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port); - memset((char*)src, 0, length); + memset((uint8_t *)src, 0, length); PrintDebug(" ignored (return zeroed buffer)\n"); return length; } +static int generic_write_port_ignore(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + return length; +} +static int generic_write_port_print_and_ignore(struct guest_info * core, uint16_t port, void * src, + uint_t length, void * priv_data) { + int i; + PrintDebug("generic: writing 0x%x bytes to port 0x%x ", length, 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; + memset((uint8_t *)src, 0, length); + PrintDebug(" ignored - data was: 0x"); - PrintDebug("generic: deinit_device\n"); + for (i = 0; i < length; i++) { + PrintDebug("%x", ((uint8_t *)src)[i]); + } + + PrintDebug("\n"); - list_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) { - uint_t i; + return length; +} - 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_del(&(cur->range_link)); - state->num_port_ranges--; - V3_Free(cur); - } - generic_reset_device(dev); + +static int generic_free(struct generic_internal * state) { + PrintDebug("generic: deinit_device\n"); + + V3_Free(state); return 0; } @@ -202,44 +188,50 @@ static int generic_free(struct vm_device * dev) { static struct v3_device_ops dev_ops = { - .free = generic_free, - .reset = generic_reset_device, - .start = generic_start_device, - .stop = generic_stop_device, + .free = (int (*)(void *))generic_free, }; -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)); +static int add_port_range(struct vm_device * dev, uint_t start, uint_t end, generic_mode_t mode) { 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"); + start, end, + (mode == 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) { + if (mode == GENERIC_PRINT_AND_PASSTHROUGH) { + if (v3_dev_hook_io(dev, i, + &generic_read_port_print_and_passthrough, + &generic_write_port_print_and_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_print_and_ignore, + &generic_write_port_print_and_ignore) == -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) { + } else if (mode == GENERIC_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_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; } @@ -248,21 +240,61 @@ int v3_generic_add_port_range(struct vm_device * dev, uint_t start, uint_t end, -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; +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"); + + + state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal)); + + if (state == NULL) { + PrintError("Could not allocate generic state\n"); + return -1; + } + + memset(state, 0, sizeof(struct generic_internal)); - struct vm_device * dev = v3_allocate_device("GENERIC", &dev_ops, state); + struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, state); - if (v3_attach_device(vm, dev) == -1) { - PrintError("Could not attach device %s\n", "GENERIC"); + if (dev == NULL) { + PrintError("Could not attach device %s\n", dev_id); + V3_Free(state); return -1; } 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 if (strcasecmp(mode_str, "passthrough") == 0) { + mode = GENERIC_PASSTHROUGH; + } else if (strcasecmp(mode_str, "ignore") == 0) { + mode = GENERIC_IGNORE; + } 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; + } + + port_cfg = v3_cfg_next_branch(port_cfg); + } + return 0; }