-/* (c) 2008, Peter Dinda <pdinda@northwestern.edu> */
-/* (c) 2008, The V3VEE Project <http://www.v3vee.org> */
-
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Peter Dinda <pdinda@northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Peter Dinda <pdinda@northwestern.edu>
+ * Contributor: 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ *
+ * This is free software. You are permitted to use,
+ * 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 <geekos/io.h>
+#include <palacios/vmm_list.h>
-#ifndef DEBUG_GENERIC
+#ifndef CONFIG_DEBUG_GENERIC
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
-#define PORT_HOOKS 1
-#define MEM_HOOKS 0 // not yet implmented in device model
-#define IRQ_HOOKS 0 // not yet implemented in device model
-
struct generic_internal {
- generic_port_range_type * port_ranges;
- uint_t num_port_ranges;
- generic_address_range_type * address_ranges;
- uint_t num_address_ranges;
- generic_irq_range_type * irq_ranges;
- uint_t num_irq_ranges;
+ struct list_head port_list;
+ uint_t num_port_ranges;
+
};
+struct port_range {
+ uint_t start;
+ uint_t end;
+ uint_t type;
+ struct list_head range_link;
+};
-int generic_reset_device(struct vm_device * dev)
-{
- PrintDebug("generic: reset device\n");
-
- return 0;
+
+
+static int generic_reset_device(struct vm_device * dev) {
+ PrintDebug("generic: reset device\n");
+ return 0;
}
-int generic_start_device(struct vm_device * dev)
-{
- PrintDebug("generic: start device\n");
- return 0;
+static int generic_start_device(struct vm_device * dev) {
+ PrintDebug("generic: start device\n");
+ return 0;
}
-int generic_stop_device(struct vm_device * dev)
-{
- PrintDebug("generic: stop device\n");
- return 0;
+static int generic_stop_device(struct vm_device * dev) {
+ PrintDebug("generic: stop device\n");
+ return 0;
}
-int generic_write_port_passthrough(ushort_t port,
- void * src,
- uint_t length,
- struct vm_device * dev)
-{
- uint_t i;
+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("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:
- Out_Byte(port, ((uchar_t*)src)[0]);
- break;
- case 2:
- Out_Word(port, ((ushort_t*)src)[0]);
- break;
- case 4:
- Out_DWord(port, ((uint_t*)src)[0]);
- break;
- default:
for (i = 0; i < length; i++) {
- Out_Byte(port, ((uchar_t*)src)[i]);
+ PrintDebug("%x", ((uchar_t*)src)[i]);
}
- } //switch length
+
+ PrintDebug(" to port 0x%x ... ", port);
+ switch (length) {
+ case 1:
+ v3_outb(port,((uchar_t*)src)[0]);
+ break;
+ case 2:
+ v3_outw(port,((uint16_t*)src)[0]);
+ break;
+ case 4:
+ v3_outdw(port,((uint_t*)src)[0]);
+ break;
+ default:
+ for (i = 0; i < length; i++) {
+ v3_outb(port, ((uchar_t*)src)[i]);
+ }
+ }
- PrintDebug(" done\n");
+ PrintDebug(" done\n");
- return length;
+ return length;
}
-int generic_read_port_passthrough(ushort_t port,
- void * src,
- uint_t length,
- struct vm_device * dev)
-{
- uint_t i;
+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);
+ PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port);
switch (length) {
- case 1:
- ((uchar_t*)src)[0] = In_Byte(port);
- break;
- case 2:
- ((ushort_t*)src)[0] = In_Word(port);
- break;
- case 4:
- ((uint_t*)src)[0] = In_DWord(port);
- break;
- default:
- for (i = 0; i < length; i++) {
- ((uchar_t*)src)[i] = In_Byte(port);
- }
- }//switch length
-
- PrintDebug(" done ... read 0x");
-
- for (i = 0; i < length; i++) {
- PrintDebug("%x", ((uchar_t*)src)[i]);
- }
-
- PrintDebug("\n");
-
- return length;
-}
+ case 1:
+ ((uchar_t*)src)[0] = v3_inb(port);
+ break;
+ case 2:
+ ((uint16_t*)src)[0] = v3_inw(port);
+ break;
+ case 4:
+ ((uint_t*)src)[0] = v3_indw(port);
+ break;
+ default:
+ for (i = 0; i < length; i++) {
+ ((uchar_t*)src)[i] = v3_inb(port);
+ }
+ }
-int generic_write_port_ignore(ushort_t port,
- void * src,
- uint_t length,
- struct vm_device * dev)
-{
- uint_t i;
+ PrintDebug(" done ... read 0x");
- PrintDebug("generic: writing 0x");
+ for (i = 0; i < length; i++) {
+ PrintDebug("%x", ((uchar_t*)src)[i]);
+ }
- for (i = 0; i < length; i++) {
- PrintDebug("%x", ((uchar_t*)src)[i]);
- }
-
- PrintDebug(" to port 0x%x ... ", port);
+ PrintDebug("\n");
- PrintDebug(" ignored\n");
-
- return length;
+ return length;
}
-int generic_read_port_ignore(ushort_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_write_port_ignore(uint16_t port, void * src,
+ uint_t length, struct vm_device * dev) {
+ uint_t i;
- memset((char*)src, 0, length);
- PrintDebug(" ignored (return zeroed buffer)\n");
+ PrintDebug("generic: writing 0x");
- return 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) {
+ PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port);
-int generic_interrupt(uint_t irq, struct vm_device * dev) {
- PrintDebug("generic: interrupt 0x%x - injecting into VM\n", irq);
-
- dev->vm->vm_ops.raise_irq(dev->vm, irq);
+ memset((char*)src, 0, length);
+ PrintDebug(" ignored (return zeroed buffer)\n");
- return 0;
+ return length;
}
-int generic_init_device(struct vm_device * dev) {
- struct generic_internal * state = (struct generic_internal *)(dev->private_data);
- uint_t i, j;
-
- PrintDebug("generic: init_device\n");
-
- // Would read state here
- generic_reset_device(dev);
- for (i = 0; i < state->num_port_ranges; i++) {
- PrintDebug("generic: hooking ports 0x%x to 0x%x as %x\n",
- state->port_ranges[i][0], state->port_ranges[i][1],
- (state->port_ranges[i][2] == GENERIC_PRINT_AND_PASSTHROUGH) ? "print-and-passthrough" : "print-and-ignore");
+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;
- if (PORT_HOOKS) { // This is a runtime conditional on a #define
- for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
- if (state->port_ranges[i][2] == GENERIC_PRINT_AND_PASSTHROUGH) {
+ PrintDebug("generic: deinit_device\n");
- if (dev_hook_io(dev, j, &generic_read_port_passthrough, &generic_write_port_passthrough)) {
- PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", j);
- }
-
- } else if (state->port_ranges[i][2] == GENERIC_PRINT_AND_IGNORE) {
-
- if (dev_hook_io(dev, j, &generic_read_port_ignore, &generic_write_port_ignore)) {
- PrintDebug("generic: can't hook port 0x%x (already hooked?)\n", j);
- }
-
- }
- }
- } else {
- PrintDebug("generic: hooking ports not supported\n");
- }
+ list_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) {
+ uint_t i;
- }
-
- for (i = 0; i < state->num_address_ranges; i++) {
-
- PrintDebug("generic: hooking addresses 0x%x to 0x%x\n",
- state->address_ranges[i][0], state->address_ranges[i][1]);
-
- if (MEM_HOOKS) { // This is a runtime conditional on a #define
- if (dev_hook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
- PrintDebug("generic: Can't hook addresses 0x%x to 0x%x (already hooked?)\n",
- state->address_ranges[i][0], state->address_ranges[i][1]);
- }
- } else {
- PrintDebug("generic: hooking addresses not supported\n");
- }
- }
-
- for (i = 0; i < state->num_irq_ranges; i++) {
-
- PrintDebug("generic: hooking irqs 0x%x to 0x%x\n",
- state->irq_ranges[i][0], state->irq_ranges[i][1]);
-
- if (IRQ_HOOKS) { // This is a runtime conditional on a #define
- for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
- if (dev_hook_irq(dev, j, &generic_interrupt)) {
- PrintDebug("generic: can't hook irq 0x%x (already hooked?)\n", j);
+ 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: hooking irqs not supported\n");
- }
- }
+ list_del(&(cur->range_link));
+ state->num_port_ranges--;
+ V3_Free(cur);
+ }
- return 0;
+ generic_reset_device(dev);
+ return 0;
}
-int generic_deinit_device(struct vm_device * dev) {
- struct generic_internal *state = (struct generic_internal *)(dev->private_data);
- uint_t i, j;
- PrintDebug("generic: deinit_device\n");
- for (i = 0; i < state->num_irq_ranges; i++) {
-
- PrintDebug("generic: unhooking irqs 0x%x to 0x%x\n",
- state->irq_ranges[i][0], state->irq_ranges[i][1]);
-
- if (IRQ_HOOKS) { // This is a runtime conditional on a #define
- for (j = state->irq_ranges[i][0]; j <= state->irq_ranges[i][1]; j++) {
-
- if (dev_unhook_irq(dev, j)) {
- PrintDebug("generic: can't unhook irq 0x%x (already unhooked?)\n",j);
- }
-
- }
- } else {
- PrintDebug("generic: unhooking irqs not supported\n");
- }
- }
- for (i = 0; i < state->num_address_ranges; i++) {
+static struct v3_device_ops dev_ops = {
+ .free = generic_free,
+ .reset = generic_reset_device,
+ .start = generic_start_device,
+ .stop = generic_stop_device,
+};
- PrintDebug("generic: unhooking addresses 0x%x to 0x%x\n",
- state->address_ranges[i][0], state->address_ranges[i][1]);
- if (MEM_HOOKS) {
- if (dev_unhook_mem(dev, state->address_ranges[i][0], state->address_ranges[i][1])) {
- PrintDebug("generic: Can't unhook addresses 0x%x to 0x%x (already unhooked?)\n",
- state->address_ranges[i][0], state->address_ranges[i][1]);
- }
- } else {
- PrintDebug("generic: unhooking addresses not supported\n");
- }
- }
+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));
+ uint_t i = 0;
- for (i = 0; i < state->num_port_ranges; i++) {
- PrintDebug("generic: unhooking ports 0x%x to 0x%x\n",
- state->port_ranges[i][0], state->port_ranges[i][1]);
-
- if (PORT_HOOKS) {
- for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
- if (dev_unhook_io(dev, j)) {
- PrintDebug("generic: can't unhook port 0x%x (already unhooked?)\n", j);
- }
- }
- } else {
- PrintDebug("generic: unhooking ports not supported\n");
+ 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");
+
+ 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) {
+ 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) {
+ PrintError("generic: can't hook port 0x%x (already hooked?)\n", i);
+ return -1;
+ }
+ }
}
- }
-
- generic_reset_device(dev);
- return 0;
+ list_add(&(range->range_link), &(state->port_list));
+ state->num_port_ranges++;
+
+ return 0;
}
-static struct vm_device_ops dev_ops = {
- .init = generic_init_device,
- .deinit = generic_deinit_device,
- .reset = generic_reset_device,
- .start = generic_start_device,
- .stop = generic_stop_device,
-};
-
-
-
-
-struct vm_device *create_generic(generic_port_range_type port_ranges[],
- generic_address_range_type address_ranges[],
- generic_irq_range_type irq_ranges[])
-{
- struct generic_internal * generic_state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal));
- int i;
- uint_t num_port_ranges;
- uint_t num_address_ranges;
- uint_t num_irq_ranges;
-
-
- num_port_ranges = 0;
-
- if (port_ranges != NULL) {
- i = 0;
-
- while ((port_ranges[i] != NULL) &&
- ( !( (port_ranges[i][0] == 0) &&
- (port_ranges[i][1] == 0) &&
- (port_ranges[i][2] == 0)) ) )
- {
- num_port_ranges++;
- i++;
- }
- }
-
+static int generic_init(struct guest_info * vm, void * cfg_data) {
+ struct generic_internal * state = (struct generic_internal *)V3_Malloc(sizeof(struct generic_internal));
- num_address_ranges = 0;
-
- if (address_ranges != NULL) {
- i = 0;
-
- while ((address_ranges[i] != NULL) &&
- ( !( (address_ranges[i][0] == 0) &&
- (address_ranges[i][1] == 0) &&
- (address_ranges[i][2] == 0)) ) )
- {
- num_address_ranges++;
- i++;
- }
- }
-
- num_irq_ranges = 0;
-
- if (irq_ranges != NULL) {
- i = 0;
-
- while ((irq_ranges[i] != NULL) &&
- ( !( (irq_ranges[i][0] == 0) &&
- (irq_ranges[i][1] == 0) &&
- (irq_ranges[i][2] == 0)) ) )
- {
- num_irq_ranges++;
- i++;
- }
- }
+ INIT_LIST_HEAD(&(state->port_list));
+ state->num_port_ranges = 0;
+ struct vm_device * dev = v3_allocate_device("GENERIC", &dev_ops, state);
- generic_state->num_port_ranges = num_port_ranges;
-
- if (num_port_ranges > 0) {
-
- generic_state->port_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_port_ranges);
- memcpy(generic_state->port_ranges, port_ranges,
- (sizeof(generic_port_range_type) * num_port_ranges));
-
- } else {
- generic_state->port_ranges = NULL;
- }
-
-
- generic_state->num_address_ranges = num_address_ranges;
-
- if (num_address_ranges > 0) {
-
- generic_state->address_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_address_ranges);
- memcpy(generic_state->address_ranges, address_ranges,
- (sizeof(generic_address_range_type) * num_address_ranges));
-
- } else {
- generic_state->address_ranges = NULL;
- }
-
-
- generic_state->num_irq_ranges = num_irq_ranges;
-
- if (num_irq_ranges > 0) {
-
- generic_state->irq_ranges = V3_Malloc(sizeof(generic_address_range_type) * num_irq_ranges);
- memcpy(generic_state->irq_ranges, irq_ranges,
- (sizeof(generic_irq_range_type) * num_port_ranges));
-
- } else {
- generic_state->irq_ranges = NULL;
- }
+ if (v3_attach_device(vm, dev) == -1) {
+ PrintError("Could not attach device %s\n", "GENERIC");
+ return -1;
+ }
- struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state);
+ PrintDebug("generic: init_device\n");
+ generic_reset_device(dev);
- return device;
+ return 0;
}
+
+device_register("GENERIC", generic_init)