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| author | Richard Henderson | 2019-03-14 21:06:29 +0100 |
|---|---|---|
| committer | Richard Henderson | 2019-05-22 18:38:54 +0200 |
| commit | 9c09a2518eac6277c09ee006841c94abe7305e53 (patch) | |
| tree | fd63e4e66875cd1d0087b04cbfe1f8592abfcabd /qemu-options.hx | |
| parent | util: Add qemu_guest_getrandom and associated routines (diff) | |
| download | qemu-9c09a2518eac6277c09ee006841c94abe7305e53.tar.gz qemu-9c09a2518eac6277c09ee006841c94abe7305e53.tar.xz qemu-9c09a2518eac6277c09ee006841c94abe7305e53.zip | |
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 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 5daa5a8fb0..7ae3373a00 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3641,6 +3641,16 @@ 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 pseudo-random number generator\n", + QEMU_ARCH_ALL) +STEXI +@item -seed @var{number} +@findex -seed +Force the guest to use a deterministic pseudo-random number generator, seeded +with @var{number}. This does not affect crypto routines within the host. +ETEXI + DEF("L", HAS_ARG, QEMU_OPTION_L, \ "-L path set the directory for the BIOS, VGA BIOS and keymaps\n", QEMU_ARCH_ALL) |