1 #include <devices/generic.h>
2 #include <palacios/vmm.h>
3 #include <palacios/vmm_types.h>
7 #define GENERIC_DEBUG 1
10 #define GENERIC_DEBUG_PRINT(first, rest...) PrintDebug(first, ##rest)
12 #define GENERIC_DEBUG_PRINT(first, rest...)
17 #define MEM_HOOKS 0 // not yet implmented in device model
18 #define IRQ_HOOKS 0 // not yet implemented in device model
20 struct generic_internal {
21 generic_port_range_type *port_ranges;
22 uint_t num_port_ranges;
23 generic_address_range_type *address_ranges;
24 uint_t num_address_ranges;
25 generic_irq_range_type *irq_ranges;
26 uint_t num_irq_ranges;
36 int generic_reset_device(struct vm_device * dev)
38 GENERIC_DEBUG_PRINT("generic: reset device\n");
48 int generic_start_device(struct vm_device *dev)
50 GENERIC_DEBUG_PRINT("generic: start device\n");
55 int generic_stop_device(struct vm_device *dev)
57 GENERIC_DEBUG_PRINT("generic: stop device\n");
64 int generic_write_port(ushort_t port,
67 struct vm_device * dev)
71 GENERIC_DEBUG_PRINT("generic: writing 0x");
73 for (i = 0; i < length; i++) {
74 GENERIC_DEBUG_PRINT("%x", ((uchar_t*)src)[i]);
77 GENERIC_DEBUG_PRINT(" to port 0x%x ... ", port);
79 for (i = 0; i < length; i++) {
80 Out_Byte(port, ((uchar_t*)src)[i]);
83 GENERIC_DEBUG_PRINT(" done\n");
88 int generic_read_port(ushort_t port,
91 struct vm_device * dev)
95 GENERIC_DEBUG_PRINT("generic: reading 0x%x bytes from port 0x%x ...", length, port);
97 for (i = 0; i < length; i++) {
98 ((uchar_t*)src)[i] = In_Byte(port);
101 GENERIC_DEBUG_PRINT(" done ... read 0x");
103 for (i = 0; i < length; i++) {
104 GENERIC_DEBUG_PRINT("%x", ((uchar_t*)src)[i]);
107 GENERIC_DEBUG_PRINT("\n");
114 int generic_interrupt(uint_t irq,
115 struct vm_device * dev)
117 PrintDebug("generic: interrupt 0x%x - injecting into VM\n", irq);
119 dev->vm->vm_ops.raise_irq(dev->vm, irq);
126 int generic_init_device(struct vm_device * dev)
128 struct generic_internal *state = (struct generic_internal *)(dev->private_data);
131 GENERIC_DEBUG_PRINT("generic: init_device\n");
133 // Would read state here
135 generic_reset_device(dev);
137 for (i = 0; i < state->num_port_ranges; i++) {
138 GENERIC_DEBUG_PRINT("generic: hooking ports 0x%x to 0x%x\n", state->port_ranges[i][0], state->port_ranges[i][1]);
141 for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
142 if (dev_hook_io(dev, j, &generic_read_port, &generic_write_port)) {
143 GENERIC_DEBUG_PRINT("generic: can't hook port 0x%x (already hooked?)\n", j);
147 GENERIC_DEBUG_PRINT("generic: hooking ports not supported\n");
152 for (i = 0; i < state->num_address_ranges; i++) {
153 GENERIC_DEBUG_PRINT("generic: hooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]);
156 if (dev_hook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
157 GENERIC_DEBUG_PRINT("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n",
158 state->address_ranges[i][0], state->address_ranges[i][1]);
161 GENERIC_DEBUG_PRINT("generic: hooking addresses not supported\n");
166 for (i = 0; i < state->num_irq_ranges; i++) {
167 GENERIC_DEBUG_PRINT("generic: hooking irqs 0x%x to 0x%x\n",state->irq_ranges[i][0],state->irq_ranges[i][1]);
170 for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
171 if (dev_hook_irq(dev, j, &generic_interrupt)) {
172 GENERIC_DEBUG_PRINT("generic: can't hook irq 0x%x (already hooked?)\n", j);
176 GENERIC_DEBUG_PRINT("generic: hooking irqs not supported\n");
184 int generic_deinit_device(struct vm_device *dev)
186 struct generic_internal *state = (struct generic_internal *)(dev->private_data);
189 GENERIC_DEBUG_PRINT("generic: deinit_device\n");
191 for (i = 0; i < state->num_irq_ranges; i++) {
192 GENERIC_DEBUG_PRINT("generic: unhooking irqs 0x%x to 0x%x\n", state->irq_ranges[i][0], state->irq_ranges[i][1]);
195 for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
196 if (dev_unhook_irq(dev, j)) {
197 GENERIC_DEBUG_PRINT("generic: can't unhook irq 0x%x (already unhooked?)\n",j);
201 GENERIC_DEBUG_PRINT("generic: unhooking irqs not supported\n");
206 for (i = 0; i < state->num_address_ranges; i++) {
207 GENERIC_DEBUG_PRINT("generic: unhooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]);
210 if (dev_unhook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
211 GENERIC_DEBUG_PRINT("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n",
212 state->address_ranges[i][0], state->address_ranges[i][1]);
215 GENERIC_DEBUG_PRINT("generic: unhooking addresses not supported\n");
220 for (i = 0; i < state->num_port_ranges; i++) {
221 GENERIC_DEBUG_PRINT("generic: unhooking ports 0x%x to 0x%x\n",state->port_ranges[i][0],state->port_ranges[i][1]);
224 for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
225 if (dev_unhook_io(dev, j)) {
226 GENERIC_DEBUG_PRINT("generic: can't unhook port 0x%x (already unhooked?)\n", j);
230 GENERIC_DEBUG_PRINT("generic: unhooking ports not supported\n");
235 generic_reset_device(dev);
243 static struct vm_device_ops dev_ops = {
244 .init = generic_init_device,
245 .deinit = generic_deinit_device,
246 .reset = generic_reset_device,
247 .start = generic_start_device,
248 .stop = generic_stop_device,
254 struct vm_device *create_generic(generic_port_range_type port_ranges[],
255 uint_t num_port_ranges,
256 generic_address_range_type address_ranges[],
257 uint_t num_address_ranges,
258 generic_irq_range_type irq_ranges[],
259 uint_t num_irq_ranges)
261 struct generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal));
264 generic_state->num_port_ranges = num_port_ranges;
266 if (num_port_ranges > 0) {
267 generic_state->port_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_port_ranges);
268 memcpy(generic_state->port_ranges, port_ranges, sizeof(generic_port_range_type) * num_port_ranges);
270 generic_state->port_ranges = NULL;
274 generic_state->num_address_ranges = num_address_ranges;
276 if (num_address_ranges > 0) {
277 generic_state->address_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_address_ranges);
278 memcpy(generic_state->address_ranges, address_ranges, sizeof(generic_address_range_type) * num_address_ranges);
280 generic_state->address_ranges = NULL;
284 generic_state->num_irq_ranges = num_irq_ranges;
286 if (num_irq_ranges > 0) {
287 generic_state->irq_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_irq_ranges);
288 memcpy(generic_state->irq_ranges, irq_ranges, sizeof(generic_irq_range_type) * num_port_ranges);
290 generic_state->irq_ranges = NULL;
294 struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state);