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authorJason A. Donenfeld <Jason@zx2c4.com>2022-10-25 02:43:24 +0200
committerPeter Maydell <peter.maydell@linaro.org>2022-10-25 17:17:02 +0100
commit0a3ac01929d04544d6e42d5e999abdb557cbc053 (patch)
treec701eb04f29c35658d17da317cbbe1a7ae5cdde3
parenta86a79c163ae1c21798834498f212d9f3e1f8fc0 (diff)
mips/boston: re-randomize rng-seed on reboot
When the system reboots, the rng-seed that the FDT has should be re-randomized, so that the new boot gets a new seed. Since the FDT is in the ROM region at this point, we add a hook right after the ROM has been added, so that we have a pointer to that copy of the FDT. Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Message-id: 20221025004327.568476-9-Jason@zx2c4.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--hw/mips/boston.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/mips/boston.c b/hw/mips/boston.c
index d2ab9da1a0..cab63f43bf 100644
--- a/hw/mips/boston.c
+++ b/hw/mips/boston.c
@@ -41,6 +41,7 @@
#include "sysemu/sysemu.h"
#include "sysemu/qtest.h"
#include "sysemu/runstate.h"
+#include "sysemu/reset.h"
#include <libfdt.h>
#include "qom/object.h"
@@ -810,6 +811,8 @@ static void boston_mach_init(MachineState *machine)
/* Calculate real fdt size after filter */
dt_size = fdt_totalsize(dtb_load_data);
rom_add_blob_fixed("dtb", dtb_load_data, dt_size, dtb_paddr);
+ qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds,
+ rom_ptr(dtb_paddr, dt_size));
} else {
/* Try to load file as FIT */
fit_err = load_fit(&boston_fit_loader, machine->kernel_filename, s);