static QEMUTimer *kvmppc_timer;
static unsigned int kvmppc_timer_rate;
-#ifdef CONFIG_FDT
-int kvmppc_read_host_property(const char *node_path, const char *prop,
- void *val, size_t len)
-{
- char *path;
- FILE *f;
- int ret = 0;
- int pathlen;
-
- pathlen = snprintf(NULL, 0, "%s/%s/%s", PROC_DEVTREE_PATH, node_path, prop)
- + 1;
- path = g_malloc(pathlen);
-
- snprintf(path, pathlen, "%s/%s/%s", PROC_DEVTREE_PATH, node_path, prop);
-
- f = fopen(path, "rb");
- if (f == NULL) {
- ret = errno;
- goto free;
- }
-
- len = fread(val, len, 1, f);
- if (len != 1) {
- ret = ferror(f);
- goto close;
- }
-
-close:
- fclose(f);
-free:
- free(path);
- return ret;
-}
-
-static int kvmppc_copy_host_cell(void *fdt, const char *node, const char *prop)
-{
- uint32_t cell;
- int ret;
-
- ret = kvmppc_read_host_property(node, prop, &cell, sizeof(cell));
- if (ret < 0) {
- fprintf(stderr, "couldn't read host %s/%s\n", node, prop);
- goto out;
- }
-
- ret = qemu_devtree_setprop_cell(fdt, node, prop, cell);
- if (ret < 0) {
- fprintf(stderr, "couldn't set guest %s/%s\n", node, prop);
- goto out;
- }
-
-out:
- return ret;
-}
-
-void kvmppc_fdt_update(void *fdt)
-{
- /* Copy data from the host device tree into the guest. Since the guest can
- * directly access the timebase without host involvement, we must expose
- * the correct frequencies. */
- kvmppc_copy_host_cell(fdt, "/cpus/cpu@0", "clock-frequency");
- kvmppc_copy_host_cell(fdt, "/cpus/cpu@0", "timebase-frequency");
-}
-#endif
-
static void kvmppc_timer_hack(void *opaque)
{
qemu_notify_event();
{
/* XXX The only reason KVM yields control back to qemu is device IO. Since
* an idle guest does no IO, qemu's device model will never get a chance to
- * run. So, until Qemu gains IO threads, we create this timer to ensure
+ * run. So, until QEMU gains IO threads, we create this timer to ensure
* that the device model gets a chance to run. */
kvmppc_timer_rate = get_ticks_per_sec() / 10;
kvmppc_timer = qemu_new_timer_ns(vm_clock, &kvmppc_timer_hack, NULL);