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authorRichard Henderson <richard.henderson@linaro.org>2019-03-14 13:06:29 -0700
committerRichard Henderson <richard.henderson@linaro.org>2019-05-22 12:38:54 -0400
commit9c09a2518eac6277c09ee006841c94abe7305e53 (patch)
treefd63e4e66875cd1d0087b04cbfe1f8592abfcabd /vl.c
parent8d8404f1564496f42b90497e7be635921c000e9d (diff)
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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>
Diffstat (limited to 'vl.c')
-rw-r--r--vl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/vl.c b/vl.c
index 201144b..5550bd7 100644
--- a/vl.c
+++ b/vl.c
@@ -128,6 +128,7 @@ int main(int argc, char **argv)
#include "qapi/qapi-commands-ui.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/iothread.h"
+#include "qemu/guest-random.h"
#define MAX_VIRTIO_CONSOLES 1
@@ -3349,6 +3350,9 @@ int main(int argc, char **argv, char **envp)
case QEMU_OPTION_DFILTER:
qemu_set_dfilter_ranges(optarg, &error_fatal);
break;
+ case QEMU_OPTION_seed:
+ qemu_guest_random_seed_main(optarg, &error_fatal);
+ break;
case QEMU_OPTION_s:
add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
break;