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);
81 Out_Byte(port,((uchar_t*)src)[0]);
84 Out_Word(port,((ushort_t*)src)[0]);
87 Out_DWord(port,((uint_t*)src)[0]);
90 for (i = 0; i < length; i++) {
91 Out_Byte(port, ((uchar_t*)src)[i]);
95 GENERIC_DEBUG_PRINT(" done\n");
100 int generic_read_port(ushort_t port,
103 struct vm_device * dev)
107 GENERIC_DEBUG_PRINT("generic: reading 0x%x bytes from port 0x%x ...", length, port);
111 ((uchar_t*)src)[0] = In_Byte(port);
114 ((ushort_t*)src)[0] = In_Word(port);
117 ((uint_t*)src)[0] = In_DWord(port);
120 for (i = 0; i < length; i++) {
121 ((uchar_t*)src)[i] = In_Byte(port);
125 GENERIC_DEBUG_PRINT(" done ... read 0x");
127 for (i = 0; i < length; i++) {
128 GENERIC_DEBUG_PRINT("%x", ((uchar_t*)src)[i]);
131 GENERIC_DEBUG_PRINT("\n");
138 int generic_interrupt(uint_t irq,
139 struct vm_device * dev)
141 PrintDebug("generic: interrupt 0x%x - injecting into VM\n", irq);
143 dev->vm->vm_ops.raise_irq(dev->vm, irq);
150 int generic_init_device(struct vm_device * dev)
152 struct generic_internal *state = (struct generic_internal *)(dev->private_data);
155 GENERIC_DEBUG_PRINT("generic: init_device\n");
157 // Would read state here
159 generic_reset_device(dev);
161 for (i = 0; i < state->num_port_ranges; i++) {
162 GENERIC_DEBUG_PRINT("generic: hooking ports 0x%x to 0x%x\n", state->port_ranges[i][0], state->port_ranges[i][1]);
165 for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
166 if (dev_hook_io(dev, j, &generic_read_port, &generic_write_port)) {
167 GENERIC_DEBUG_PRINT("generic: can't hook port 0x%x (already hooked?)\n", j);
171 GENERIC_DEBUG_PRINT("generic: hooking ports not supported\n");
176 for (i = 0; i < state->num_address_ranges; i++) {
177 GENERIC_DEBUG_PRINT("generic: hooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]);
180 if (dev_hook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
181 GENERIC_DEBUG_PRINT("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n",
182 state->address_ranges[i][0], state->address_ranges[i][1]);
185 GENERIC_DEBUG_PRINT("generic: hooking addresses not supported\n");
190 for (i = 0; i < state->num_irq_ranges; i++) {
191 GENERIC_DEBUG_PRINT("generic: hooking irqs 0x%x to 0x%x\n",state->irq_ranges[i][0],state->irq_ranges[i][1]);
194 for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
195 if (dev_hook_irq(dev, j, &generic_interrupt)) {
196 GENERIC_DEBUG_PRINT("generic: can't hook irq 0x%x (already hooked?)\n", j);
200 GENERIC_DEBUG_PRINT("generic: hooking irqs not supported\n");
208 int generic_deinit_device(struct vm_device *dev)
210 struct generic_internal *state = (struct generic_internal *)(dev->private_data);
213 GENERIC_DEBUG_PRINT("generic: deinit_device\n");
215 for (i = 0; i < state->num_irq_ranges; i++) {
216 GENERIC_DEBUG_PRINT("generic: unhooking irqs 0x%x to 0x%x\n", state->irq_ranges[i][0], state->irq_ranges[i][1]);
219 for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
220 if (dev_unhook_irq(dev, j)) {
221 GENERIC_DEBUG_PRINT("generic: can't unhook irq 0x%x (already unhooked?)\n",j);
225 GENERIC_DEBUG_PRINT("generic: unhooking irqs not supported\n");
230 for (i = 0; i < state->num_address_ranges; i++) {
231 GENERIC_DEBUG_PRINT("generic: unhooking addresses 0x%x to 0x%x\n",state->address_ranges[i][0],state->address_ranges[i][1]);
234 if (dev_unhook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
235 GENERIC_DEBUG_PRINT("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n",
236 state->address_ranges[i][0], state->address_ranges[i][1]);
239 GENERIC_DEBUG_PRINT("generic: unhooking addresses not supported\n");
244 for (i = 0; i < state->num_port_ranges; i++) {
245 GENERIC_DEBUG_PRINT("generic: unhooking ports 0x%x to 0x%x\n",state->port_ranges[i][0],state->port_ranges[i][1]);
248 for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
249 if (dev_unhook_io(dev, j)) {
250 GENERIC_DEBUG_PRINT("generic: can't unhook port 0x%x (already unhooked?)\n", j);
254 GENERIC_DEBUG_PRINT("generic: unhooking ports not supported\n");
259 generic_reset_device(dev);
267 static struct vm_device_ops dev_ops = {
268 .init = generic_init_device,
269 .deinit = generic_deinit_device,
270 .reset = generic_reset_device,
271 .start = generic_start_device,
272 .stop = generic_stop_device,
278 struct vm_device *create_generic(generic_port_range_type port_ranges[],
279 uint_t num_port_ranges,
280 generic_address_range_type address_ranges[],
281 uint_t num_address_ranges,
282 generic_irq_range_type irq_ranges[],
283 uint_t num_irq_ranges)
285 struct generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal));
288 generic_state->num_port_ranges = num_port_ranges;
290 if (num_port_ranges > 0) {
291 generic_state->port_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_port_ranges);
292 memcpy(generic_state->port_ranges, port_ranges, sizeof(generic_port_range_type) * num_port_ranges);
294 generic_state->port_ranges = NULL;
298 generic_state->num_address_ranges = num_address_ranges;
300 if (num_address_ranges > 0) {
301 generic_state->address_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_address_ranges);
302 memcpy(generic_state->address_ranges, address_ranges, sizeof(generic_address_range_type) * num_address_ranges);
304 generic_state->address_ranges = NULL;
308 generic_state->num_irq_ranges = num_irq_ranges;
310 if (num_irq_ranges > 0) {
311 generic_state->irq_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_irq_ranges);
312 memcpy(generic_state->irq_ranges, irq_ranges, sizeof(generic_irq_range_type) * num_port_ranges);
314 generic_state->irq_ranges = NULL;
318 struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state);