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: Peter Maydell <peter.mayd...@linaro.org>
Cc: qemu-...@nongnu.org
Signed-off-by: Jason A. Donenfeld <ja...@zx2c4.com>
Message-id: 20221025004327.568476-5-ja...@zx2c4.com
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/arm/boot.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index b0b92af1889..b106f314685 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -683,6 +683,8 @@ int arm_load_dtb(hwaddr addr, const struct arm_boot_info
*binfo,
* the DTB is copied again upon reset, even if addr points into RAM.
*/
rom_add_blob_fixed_as("dtb", fdt, size, addr, as);
+ qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds,
+ rom_ptr_for_as(as, addr, size));
g_free(fdt);
--
2.25.1
