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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-07-19 14:20:33 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-07-22 19:01:44 +0200 |
| commit | c287941a4dd5570e4221b0a58590f7231f896e51 (patch) | |
| tree | 118376731c65ff1d106cbb3dc7eba0e83ecc1d66 /hw/rx/rx-gdbsim.c | |
| parent | 5e19cc68fb42c6ecabe5cf37012c887d25ffd144 (diff) | |
| download | qemu-c287941a4dd5570e4221b0a58590f7231f896e51.zip qemu-c287941a4dd5570e4221b0a58590f7231f896e51.tar.gz qemu-c287941a4dd5570e4221b0a58590f7231f896e51.tar.bz2 | |
hw/rx: pass random seed to fdt
If the FDT contains /chosen/rng-seed, then the Linux RNG will use it to
initialize early. Set this using the usual guest random number
generation function. This FDT node is part of the DT specification.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-Id: <20220719122033.135902-1-Jason@zx2c4.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/rx/rx-gdbsim.c')
| -rw-r--r-- | hw/rx/rx-gdbsim.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/rx/rx-gdbsim.c b/hw/rx/rx-gdbsim.c index be147b4..8ffe1b8 100644 --- a/hw/rx/rx-gdbsim.c +++ b/hw/rx/rx-gdbsim.c @@ -19,6 +19,7 @@ #include "qemu/osdep.h" #include "qemu/cutils.h" #include "qemu/error-report.h" +#include "qemu/guest-random.h" #include "qapi/error.h" #include "hw/loader.h" #include "hw/rx/rx62n.h" @@ -83,6 +84,7 @@ static void rx_gdbsim_init(MachineState *machine) MemoryRegion *sysmem = get_system_memory(); const char *kernel_filename = machine->kernel_filename; const char *dtb_filename = machine->dtb; + uint8_t rng_seed[32]; if (machine->ram_size < mc->default_ram_size) { char *sz = size_to_str(mc->default_ram_size); @@ -140,6 +142,8 @@ static void rx_gdbsim_init(MachineState *machine) error_report("Couldn't set /chosen/bootargs"); exit(1); } + qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); + qemu_fdt_setprop(dtb, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed)); /* DTB is located at the end of SDRAM space. */ dtb_offset = ROUND_DOWN(machine->ram_size - dtb_size, 16); rom_add_blob_fixed("dtb", dtb, dtb_size, |