* redistribute, and modify it as specified in the file "V3VEE_LICENSE".
*/
-#include <devices/generic.h>
#include <palacios/vmm.h>
#include <palacios/vmm_types.h>
#include <palacios/vmm_list.h>
+#include <palacios/vmm_io.h>
+#include <palacios/vmm_dev_mgr.h>
-
-
-#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;
struct port_range {
uint_t start;
uint_t end;
- uint_t type;
+ generic_mode_t mode;
struct list_head range_link;
};
-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");
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);
((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);
for (i = 0; i < length; i++) {
((uchar_t*)src)[i] = v3_inb(port);
}
- }//switch length
+ }
PrintDebug(" done ... read 0x");
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");
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);
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;
-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);
}
