From 2db07d0506d365884b140fd5640fd71db15eacbc Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Tue, 25 Oct 2022 02:43:26 +0200 Subject: [PATCH] openrisc: 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: Stafford Horne Signed-off-by: Jason A. Donenfeld Message-id: 20221025004327.568476-11-Jason@zx2c4.com Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/openrisc/boot.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/openrisc/boot.c b/hw/openrisc/boot.c index 128ccbcba24b..007e80cd5a0a 100644 --- a/hw/openrisc/boot.c +++ b/hw/openrisc/boot.c @@ -14,6 +14,7 @@ #include "hw/openrisc/boot.h" #include "sysemu/device_tree.h" #include "sysemu/qtest.h" +#include "sysemu/reset.h" #include @@ -111,6 +112,8 @@ uint32_t openrisc_load_fdt(void *fdt, hwaddr load_start, rom_add_blob_fixed_as("fdt", fdt, fdtsize, fdt_addr, &address_space_memory); + qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, + rom_ptr_for_as(&address_space_memory, fdt_addr, fdtsize)); return fdt_addr; }