linux-user: Add missing /proc/cpuinfo fields for sparc

Add some missing fields which may be parsed by userspace applications.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <Z39B1wzNNpndmOxZ@p100>

linux-user/sparc/target_proc.h

@@ -8,7 +8,25 @@
 
 static int open_cpuinfo(CPUArchState *cpu_env, int fd)
 {
-    dprintf(fd, "type\t\t: sun4u\n");
+    int i, num_cpus;
+    const char *cpu_type;
+
+    num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+    if (cpu_env->def.features & CPU_FEATURE_HYPV) {
+        cpu_type = "sun4v";
+    } else {
+        cpu_type = "sun4u";
+    }
+
+    dprintf(fd, "cpu\t\t: %s (QEMU)\n", cpu_env->def.name);
+    dprintf(fd, "type\t\t: %s\n", cpu_type);
+    dprintf(fd, "ncpus probed\t: %d\n", num_cpus);
+    dprintf(fd, "ncpus active\t: %d\n", num_cpus);
+    dprintf(fd, "State:\n");
+    for (i = 0; i < num_cpus; i++) {
+        dprintf(fd, "CPU%d:\t\t: online\n", i);
+    }
+
     return 0;
 }
 #define HAVE_ARCH_PROC_CPUINFO