int vmm_devtree_irq_get(struct vmm_devtree_node *node,
u32 *irq, int index)
{
u32 alen;
const char *aval;
if (!node || !irq || index < 0) {
return VMM_EFAIL;
}
aval = vmm_devtree_attrval(node, VMM_DEVTREE_INTERRUPTS_ATTR_NAME);
if (!aval) {
return VMM_ENOTAVAIL;
}
alen = vmm_devtree_attrlen(node, VMM_DEVTREE_INTERRUPTS_ATTR_NAME);
if (alen <= (index * sizeof(u32))) {
return VMM_ENOTAVAIL;
}
aval += index * sizeof(u32);
*irq = vmm_be32_to_cpu(*((u32 *)aval));
return VMM_OK;
}
u32 vmm_devtree_irq_count(struct vmm_devtree_node *node)
{
u32 alen;
if (!node) {
return 0;
}
alen = vmm_devtree_attrlen(node, VMM_DEVTREE_INTERRUPTS_ATTR_NAME);
return alen / sizeof(u32);
}
static int devtree_node_is_compatible(const struct vmm_devtree_node *node,
const char *compat)
{
const char *cp;
int cplen, l;
cp = vmm_devtree_attrval(node, VMM_DEVTREE_COMPATIBLE_ATTR_NAME);
cplen = vmm_devtree_attrlen(node, VMM_DEVTREE_COMPATIBLE_ATTR_NAME);
if (cp == NULL)
return 0;
while (cplen > 0) {
if (strcmp(cp, compat) == 0)
return 1;
l = strlen(cp) + 1;
cp += l;
cplen -= l;
}
return 0;
}
static void system_init_work(struct vmm_work *work)
{
#define BOOTCMD_WIDTH 256
int ret;
char bcmd[BOOTCMD_WIDTH];
const char *str;
u32 c, freed;
struct vmm_chardev *cdev;
#if defined(CONFIG_RTC)
struct vmm_rtcdev *rdev;
#endif
struct vmm_devtree_node *node, *node1;
/* Initialize command manager */
vmm_printf("Initialize Command Manager\n");
ret = vmm_cmdmgr_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Initialize device driver framework */
vmm_printf("Initialize Device Driver Framework\n");
ret = vmm_devdrv_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Initialize device emulation framework */
vmm_printf("Initialize Device Emulation Framework\n");
ret = vmm_devemu_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Initialize character device framework */
vmm_printf("Initialize Character Device Framework\n");
ret = vmm_chardev_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Initialize virtual serial port framework */
vmm_printf("Initialize Virtual Serial Port Framework\n");
ret = vmm_vserial_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
#if defined(CONFIG_SMP)
/* Poll for all present CPUs to become online */
/* Note: There is a timeout of 1 second */
/* Note: The modules might use SMP IPIs or might have per-cpu context
* so, we do this before vmm_modules_init() in-order to make sure that
* correct number of online CPUs are visible to all modules.
*/
ret = 1000;
while(ret--) {
int all_cpu_online = 1;
for_each_present_cpu(c) {
if (!vmm_cpu_online(c)) {
all_cpu_online = 0;
}
}
if (all_cpu_online) {
break;
}
vmm_mdelay(1);
}
#endif
/* Initialize hypervisor modules */
vmm_printf("Initialize Hypervisor Modules\n");
ret = vmm_modules_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Initialize cpu final */
vmm_printf("Initialize CPU Final\n");
ret = arch_cpu_final_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Intialize board final */
vmm_printf("Initialize Board Final\n");
ret = arch_board_final_init();
if (ret) {
vmm_panic("Error %d\n", ret);
}
/* Print status of present host CPUs */
for_each_present_cpu(c) {
if (vmm_cpu_online(c)) {
vmm_printf("CPU%d: Online\n", c);
} else {
vmm_printf("CPU%d: Possible\n", c);
}
}
vmm_printf("Brought Up %d CPUs\n", vmm_num_online_cpus());
/* Free init memory */
vmm_printf("Freeing init memory: ");
freed = vmm_host_free_initmem();
vmm_printf("%dK\n", freed);
/* Process attributes in chosen node */
node = vmm_devtree_getnode(VMM_DEVTREE_PATH_SEPARATOR_STRING
VMM_DEVTREE_CHOSEN_NODE_NAME);
if (node) {
/* Find character device based on console attribute */
str = vmm_devtree_attrval(node, VMM_DEVTREE_CONSOLE_ATTR_NAME);
if (!(cdev = vmm_chardev_find(str))) {
if ((node1 = vmm_devtree_getnode(str))) {
cdev = vmm_chardev_find(node1->name);
}
}
/* Set chosen console device as stdio device */
if (cdev) {
vmm_printf("Change stdio device to %s\n", cdev->name);
vmm_stdio_change_device(cdev);
}
#if defined(CONFIG_RTC)
/* Find rtc device based on rtcdev attribute */
str = vmm_devtree_attrval(node, VMM_DEVTREE_RTCDEV_ATTR_NAME);
if (!(rdev = vmm_rtcdev_find(str))) {
if ((node1 = vmm_devtree_getnode(str))) {
rdev = vmm_rtcdev_find(node1->name);
}
}
/* Syncup wallclock time with chosen rtc device */
if (rdev) {
ret = vmm_rtcdev_sync_wallclock(rdev);
vmm_printf("Syncup wallclock using %s", rdev->name);
if (ret) {
vmm_printf("(error %d)", ret);
}
vmm_printf("\n");
}
#endif
/* Execute boot commands */
str = vmm_devtree_attrval(node, VMM_DEVTREE_BOOTCMD_ATTR_NAME);
if (str) {
c = vmm_devtree_attrlen(node, VMM_DEVTREE_BOOTCMD_ATTR_NAME);
while (c) {
#if defined(CONFIG_VERBOSE_MODE)
/* Print boot command */
vmm_printf("bootcmd: %s\n", str);
#endif
/* Execute boot command */
strlcpy(bcmd, str, sizeof(bcmd));
cdev = vmm_stdio_device();
vmm_cmdmgr_execute_cmdstr(cdev, bcmd, NULL);
/* Next boot command */
c -= strlen(str) + 1;
str += strlen(str) + 1;
}
}
}
}
