-/* (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>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
#include <devices/nvram.h>
#include <palacios/vmm.h>
-struct vm_device * thedev = NULL;
-
-static struct vm_device * demultiplex_timer_interrupt(uint_t period_us)
-{
- // hack
- return thedev;
-}
-
struct bcd_num {
uchar_t bot : 4;
uchar_t top : 4;
-} ;
+};
+
-static uchar_t add_to(uchar_t * left, uchar_t * right, uchar_t bcd)
-{
+
+static uchar_t add_to(uchar_t * left, uchar_t * right, uchar_t bcd) {
uchar_t temp;
if (bcd) {
return 0;
}
}
-
}
-static uchar_t days_in_month(struct vm_device *dev, uchar_t month, uchar_t bcd)
-{
+static uchar_t days_in_month(struct vm_device * dev, uchar_t month, uchar_t bcd) {
// This completely ignores Julian / Gregorian stuff right now
if (bcd) {
}
-static void update_time(struct vm_device *dev, uint_t period_us)
-{
+static void update_time(struct vm_device * dev, uint_t period_us) {
struct nvram_internal * data = (struct nvram_internal *) (dev->private_data);
struct rtc_stata * stata = (struct rtc_stata *) &((data->mem_state[NVRAM_REG_STAT_A]));
struct rtc_statb * statb = (struct rtc_statb *) &((data->mem_state[NVRAM_REG_STAT_B]));
}
+int handle_timer_event(struct guest_info * info,
+ struct v3_timer_event * evt,
+ void * priv_data) {
-
-void deliver_timer_interrupt_to_vmm(uint_t period_us)
-{
- struct vm_device * dev = demultiplex_timer_interrupt(period_us);
+ struct vm_device * dev = (struct vm_device *)priv_data;
if (dev) {
- update_time(dev, period_us);
+ update_time(dev, evt->period_us);
}
+ return 0;
}
-
-static int set_nvram_defaults(struct vm_device * dev)
-{
+static int set_nvram_defaults(struct vm_device * dev) {
struct nvram_internal * nvram_state = (struct nvram_internal *)dev->private_data;
-
//
// 2 1.44 MB floppy drives
//
nvram_state->pus = 0;
return 0;
-
}
-int nvram_reset_device(struct vm_device * dev)
-{
+int nvram_reset_device(struct vm_device * dev) {
struct nvram_internal * data = (struct nvram_internal *) dev->private_data;
PrintDebug("nvram: reset device\n");
-
data->dev_state = NVRAM_READY;
data->thereg = 0;
-int nvram_start_device(struct vm_device *dev)
-{
+int nvram_start_device(struct vm_device * dev) {
PrintDebug("nvram: start device\n");
return 0;
}
-int nvram_stop_device(struct vm_device *dev)
-{
+int nvram_stop_device(struct vm_device * dev) {
PrintDebug("nvram: stop device\n");
return 0;
}
int nvram_write_reg_port(ushort_t port,
void * src,
uint_t length,
- struct vm_device * dev)
-{
+ struct vm_device * dev) {
struct nvram_internal * data = (struct nvram_internal *)dev->private_data;
memcpy(&(data->thereg), src, 1);
int nvram_read_data_port(ushort_t port,
void * dst,
uint_t length,
- struct vm_device * dev)
-{
- struct nvram_internal * data = (struct nvram_internal *) dev->private_data;
-
-
+ struct vm_device * dev) {
+ struct nvram_internal * data = (struct nvram_internal *)dev->private_data;
memcpy(dst, &(data->mem_state[data->thereg]), 1);
int nvram_write_data_port(ushort_t port,
void * src,
uint_t length,
- struct vm_device * dev)
-{
+ struct vm_device * dev) {
struct nvram_internal * data = (struct nvram_internal *)dev->private_data;
memcpy(&(data->mem_state[data->thereg]), src, 1);
int nvram_init_device(struct vm_device * dev) {
- struct nvram_internal * data = (struct nvram_internal *) dev->private_data;
+ struct nvram_internal * data = (struct nvram_internal *)dev->private_data;
PrintDebug("nvram: init_device\n");
dev_hook_io(dev, NVRAM_REG_PORT, NULL, &nvram_write_reg_port);
dev_hook_io(dev, NVRAM_DATA_PORT, &nvram_read_data_port, &nvram_write_data_port);
+ v3_hook_host_event(dev->vm, HOST_TIMER_EVT, V3_HOST_EVENT_HANDLER(handle_timer_event), dev);
+
return 0;
}
-int nvram_deinit_device(struct vm_device *dev)
-{
-
-
+int nvram_deinit_device(struct vm_device * dev) {
dev_unhook_io(dev, NVRAM_REG_PORT);
dev_unhook_io(dev, NVRAM_DATA_PORT);
struct vm_device * create_nvram() {
- struct nvram_internal * nvram_state = (struct nvram_internal *)V3_Malloc(sizeof(struct nvram_internal) + 1000);
+ struct nvram_internal * nvram_state = NULL;
- PrintDebug("nvram: internal at %x\n",nvram_state);
+ nvram_state = (struct nvram_internal *)V3_Malloc(sizeof(struct nvram_internal) + 1000);
- struct vm_device * device = create_device("NVRAM", &dev_ops, nvram_state);
+ PrintDebug("nvram: internal at %x\n", nvram_state);
- if (thedev != NULL) {
- PrintDebug("nvram: warning! overwriting thedev\n");
- }
-
- thedev = device;
+ struct vm_device * device = create_device("NVRAM", &dev_ops, nvram_state);
return device;
}
