-#include <devices/generic.h>
+/*
+ * 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 <palacios/vmm.h>
#include <palacios/vmm_types.h>
-#include <geekos/io.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
-#define MEM_HOOKS 0 // not yet implmented in device model
-#define IRQ_HOOKS 0 // not yet implemented in device model
+typedef enum {GENERIC_IGNORE,
+ GENERIC_PASSTHROUGH,
+ GENERIC_PRINT_AND_PASSTHROUGH,
+ GENERIC_PRINT_AND_IGNORE} generic_mode_t;
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;
+};
-
-#ifdef RAMDISK_BOOT
-#include <devices/ramdisk.h>
-//ramdisk_state
-static struct ramdisk_t *ramdisk_state;
-#endif
+struct port_range {
+ uint_t start;
+ uint_t end;
+ generic_mode_t mode;
+ 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;
-
- PrintDebug("generic: writing 0x");
-
- for (i = 0; i < length; i++) {
- PrintDebug("%x", ((uchar_t*)src)[i]);
- }
-
- PrintDebug(" to port 0x%x ... ", port);
-
-#ifdef RAMDISK_BOOT
-
- uint_t err;
-
- if (((port >= 0x170 && port <= 0x177) || port == 0x376 || port == 0x377)
- && (dev->vm->cpu_mode == REAL)) {
-
-
- err = ramdisk_state->eops.write_port(port, src, length, dev);
+static int generic_write_port_passthrough(uint16_t port, void * src,
+ uint_t length, struct vm_device * dev) {
+ uint_t i;
- }else{
-#endif
+ PrintDebug("generic: writing 0x");
- 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
-#ifdef RAMDISK_BOOT
- }//else not ramdisk
-#endif
- PrintDebug(" done\n");
- return length;
-}
-
-int generic_read_port_passthrough(ushort_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(" to port 0x%x ... ", port);
-#ifdef RAMDISK_BOOT
+ 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,((uint32_t *)src)[0]);
+ break;
+ default:
+ for (i = 0; i < length; i++) {
+ v3_outb(port, ((uchar_t *)src)[i]);
+ }
+ }
- uint_t err;
+ PrintDebug(" done\n");
+
+ return length;
+}
- if (((port >= 0x170 && port <= 0x177) || port == 0x376 || port == 0x377)
- && (dev->vm->cpu_mode == REAL)) {
+static int generic_read_port_passthrough(uint16_t port, void * src,
+ uint_t length, struct vm_device * dev) {
+ uint_t i;
- err = ramdisk_state->eops.read_port(port, src, length, dev);
+ PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port);
- }else{
-#endif
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
-#ifdef RAMDISK_BOOT
- }//else not ramdisk
-#endif
+ 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);
+ }
+ }
- PrintDebug(" done ... read 0x");
+ PrintDebug(" done ... read 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("\n");
+ PrintDebug("\n");
- return length;
+ return length;
}
-int generic_write_port_ignore(ushort_t port,
- void * src,
- uint_t length,
- struct vm_device * dev)
-{
- uint_t i;
+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");
+ 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(" ignored\n");
-
-#ifdef RAMDISK_BOOT
-
- uint_t err;
-
- if (((port >= 0x3e8 && port <= 0x3ef) ||
- (port >= 0x2e8 && port <= 0x2ef))
- && (dev->vm->cpu_mode == REAL)) {
-
- err = ramdisk_state->eops.write_port_ignore(port, src, length, dev);
- }
-#endif
+ PrintDebug(" to port 0x%x ... ignored\n", port);
- 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);
-
- memset((char*)src,0,length);
- PrintDebug(" ignored (return zeroed buffer)\n");
-
-#ifdef RAMDISK_BOOT
-
- uint_t err;
+static int generic_read_port_ignore(uint16_t port, void * src,
+ uint_t length, struct vm_device * dev) {
- if (((port >= 0x3e8 && port <= 0x3ef) ||
- (port >= 0x2e8 && port <= 0x2ef))
- && (dev->vm->cpu_mode == REAL)) {
+ PrintDebug("generic: reading 0x%x bytes from port 0x%x ...", length, port);
- err = ramdisk_state->eops.read_port_ignore(port, src, length, dev);
- }
-#endif
+ memset((char*)src, 0, length);
+ PrintDebug(" ignored (return zeroed buffer)\n");
- return length;
+ return length;
}
-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);
-
- return 0;
-
-}
-
-
-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
+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;
- generic_reset_device(dev);
+ PrintDebug("generic: deinit_device\n");
- 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");
+ list_for_each_entry_safe(cur, tmp, &(state->port_list), range_link) {
+ uint_t i;
-#if PORT_HOOKS
- for (j = state->port_ranges[i][0]; j <= state->port_ranges[i][1]; j++) {
- if (state->port_ranges[i][2]==GENERIC_PRINT_AND_PASSTHROUGH) {
- 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);
+ 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 ports not supported\n");
-#endif
-
- }
-
- 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
- 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]);
+ list_del(&(cur->range_link));
+ state->num_port_ranges--;
+ V3_Free(cur);
}
-#else
- PrintDebug("generic: hooking addresses not supported\n");
-#endif
-
- }
-
- 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
- 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);
- }
- }
-#else
- PrintDebug("generic: hooking irqs not supported\n");
-#endif
- }
-
-#ifdef RAMDISK_BOOT
-
- ramdisk_state->cops.init(ramdisk_state, dev);
-
-#endif
-
- 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");
-#ifdef RAMDISK_BOOT
- ramdisk_state->cops.close(ramdisk_state);
-
-#endif
-
- 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
- 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");
-#endif
- }
+static struct v3_device_ops dev_ops = {
+ .free = generic_free,
+ .reset = generic_reset_device,
+ .start = generic_start_device,
+ .stop = generic_stop_device,
+};
- for (i = 0; i < state->num_address_ranges; i++) {
- 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");
-#endif
- }
- 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]);
+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;
-#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);
- }
+ range->start = start;
+ range->end = end;
+ range->mode = mode;
+
+ 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");
+
+ 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;
+ }
+ }
}
-#else
- PrintDebug("generic: unhooking ports not supported\n");
-#endif
-
- }
- 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,
-};
-
-
+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));
+ char * name = v3_cfg_val(cfg, "name");
+ v3_cfg_tree_t * port_cfg = v3_cfg_subtree(cfg, "ports");
-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, num_address_ranges, 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++; }
- }
+ INIT_LIST_HEAD(&(state->port_list));
+ state->num_port_ranges = 0;
-
- 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++; }
- }
+ struct vm_device * dev = v3_allocate_device(name, &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;
- }
-
-#ifdef RAMDISK_BOOT
+ if (v3_attach_device(vm, dev) == -1) {
+ PrintError("Could not attach device %s\n", name);
+ return -1;
+ }
- ramdisk_state = create_ramdisk();
- V3_ASSERT(ramdisk_state != NULL);
+ 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 {
+ PrintError("Invalid Mode %s\n", mode_str);
+ return -1;
+ }
+
+ if (add_port_range(dev, start, end, mode) == -1) {
+ PrintError("Could not add port range %d-%d\n", start, end);
+ return -1;
+ }
-#endif
+ port_cfg = v3_cfg_next_branch(port_cfg);
+ }
- struct vm_device *device = create_device("GENERIC", &dev_ops, generic_state);
- return device;
+ return 0;
}
+
+device_register("GENERIC", generic_init)
