cpus: Initialize pseudo-random seeds for all guest cpus

When the -seed option is given, call qemu_guest_random_seed_main,
putting the subsystem into deterministic mode.  Pass derived seeds
to each cpu created; which is a no-op unless the subsystem is in
deterministic mode.

Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 32983f27c3..98e12d914c 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -375,6 +375,7 @@ struct CPUState {
     int singlestep_enabled;
     int64_t icount_budget;
     int64_t icount_extra;
+    uint64_t random_seed;
     sigjmp_buf jmp_env;
 
     QemuMutex work_mutex;