From: "Jason A. Donenfeld" <ja...@zx2c4.com>
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.rik...@syrmia.com>
Cc: Paul Burton <paulbur...@kernel.org>
Cc: Philippe Mathieu-Daudé <f4...@amsat.org>
Signed-off-by: Jason A. Donenfeld <ja...@zx2c4.com>
Message-id: 20221025004327.568476-9-ja...@zx2c4.com
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/mips/boston.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/mips/boston.c b/hw/mips/boston.c
index d2ab9da1a01..cab63f43bf4 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);
--
2.25.1
