Re: [Qemu-devel] [PATCH for-4.1 1/7] util: Add qemu_getrandom and support functions

[Laurent Vivier]

On 13/03/2019 07:26, Richard Henderson wrote:
> Initialize the system from system and linux-user arguments.
> Propagate deterministic seeds when creating new cpu threads.
>
> Signed-off-by: Richard Henderson <address@hidden>
> ---
>   include/qemu/random.h | 58 +++++++++++++++++++++++++++++++++
>   include/qom/cpu.h     |  1 +
>   cpus.c                |  9 +++++
>   linux-user/main.c     |  9 ++---
>   linux-user/syscall.c  |  3 ++
>   util/random.c         | 76 +++++++++++++++++++++++++++++++++++++++++++
>   vl.c                  |  4 +++
>   qemu-options.hx       | 10 ++++++
>   util/Makefile.objs    |  1 +
>   9 files changed, 164 insertions(+), 7 deletions(-)
>   create mode 100644 include/qemu/random.h
>   create mode 100644 util/random.c
...
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 8693f5fa3c..a45ae70d33 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -3598,6 +3598,16 @@ the 0x200 sized block starting at 0xffffffc000080000 and 
> another 0x1000 sized
>   block starting at 0xffffffc00005f000.
>   ETEXI
>   
> +DEF("seed", HAS_ARG, QEMU_OPTION_seed, \
> +    "-seed number       seed the psudorandom number generator\n",

s/psudorandom/pseudo random/

> +    QEMU_ARCH_ALL)
> +STEXI
> address@hidden -seed @var{number}
> address@hidden -seed
> +Force qemu to use a deterministic pseudo random number generator,
> +seeded with @var{number}.
> +ETEXI
> +

Thanks,
Laurent