2 files changed, 49 insertions, 0 deletions
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 0424a78..9886b54 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -252,3 +252,50 @@ int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run)
     return ret;
 }
 
+static int read_cpuinfo(const char *field, char *value, int len)
+{
+    FILE *f;
+    int ret = -1;
+    int field_len = strlen(field);
+    char line[512];
+
+    f = fopen("/proc/cpuinfo", "r");
+    if (!f) {
+        return -1;
+    }
+
+    do {
+        if(!fgets(line, sizeof(line), f)) {
+            break;
+        }
+        if (!strncmp(line, field, field_len)) {
+            strncpy(value, line, len);
+            ret = 0;
+            break;
+        }
+    } while(*line);
+
+    fclose(f);
+
+    return ret;
+}
+
+uint32_t kvmppc_get_tbfreq(void)
+{
+    char line[512];
+    char *ns;
+    uint32_t retval = get_ticks_per_sec();
+
+    if (read_cpuinfo("timebase", line, sizeof(line))) {
+        return retval;
+    }
+
+    if (!(ns = strchr(line, ':'))) {
+        return retval;
+    }
+
+    ns++;
+
+    retval = atoi(ns);
+    return retval;
+}
diff --git a/target-ppc/kvm_ppc.h b/target-ppc/kvm_ppc.h
index 3792ef7..e8d66e8 100644
--- a/target-ppc/kvm_ppc.h
+++ b/target-ppc/kvm_ppc.h
@@ -14,4 +14,6 @@ void kvmppc_fdt_update(void *fdt);
 int kvmppc_read_host_property(const char *node_path, const char *prop,
                                      void *val, size_t len);
 
+uint32_t kvmppc_get_tbfreq(void);
+
 #endif /* __KVM_PPC_H__ */