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[PULL 29/30] openrisc: re-randomize rng-seed on reboot
From: |
Peter Maydell |
Subject: |
[PULL 29/30] openrisc: re-randomize rng-seed on reboot |
Date: |
Tue, 25 Oct 2022 17:39:51 +0100 |
From: "Jason A. Donenfeld" <Jason@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: Stafford Horne <shorne@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-id: 20221025004327.568476-11-Jason@zx2c4.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
hw/openrisc/boot.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/openrisc/boot.c b/hw/openrisc/boot.c
index 128ccbcba24..007e80cd5a0 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 <libfdt.h>
@@ -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;
}
--
2.25.1
- [PULL 12/30] target/arm: Add ARMFault_UnsuppAtomicUpdate, (continued)
- [PULL 12/30] target/arm: Add ARMFault_UnsuppAtomicUpdate, Peter Maydell, 2022/10/25
- [PULL 13/30] target/arm: Remove loop from get_phys_addr_lpae, Peter Maydell, 2022/10/25
- [PULL 18/30] target/arm: Implement FEAT_HAFDBS, access flag portion, Peter Maydell, 2022/10/25
- [PULL 19/30] target/arm: Implement FEAT_HAFDBS, dirty bit portion, Peter Maydell, 2022/10/25
- [PULL 07/30] target/arm: Introduce regime_is_stage2, Peter Maydell, 2022/10/25
- [PULL 21/30] reset: allow registering handlers that aren't called by snapshot loading, Peter Maydell, 2022/10/25
- [PULL 23/30] x86: do not re-randomize RNG seed on snapshot load, Peter Maydell, 2022/10/25
- [PULL 28/30] mips/boston: re-randomize rng-seed on reboot, Peter Maydell, 2022/10/25
- [PULL 30/30] rx: re-randomize rng-seed on reboot, Peter Maydell, 2022/10/25
- [PULL 25/30] riscv: re-randomize rng-seed on reboot, Peter Maydell, 2022/10/25
- [PULL 29/30] openrisc: re-randomize rng-seed on reboot,
Peter Maydell <=
- [PULL 24/30] arm: re-randomize rng-seed on reboot, Peter Maydell, 2022/10/25
- [PULL 20/30] target/arm: Use the max page size in a 2-stage ptw, Peter Maydell, 2022/10/25
- [PULL 22/30] device-tree: add re-randomization helper function, Peter Maydell, 2022/10/25
- [PULL 26/30] m68k/virt: do not re-randomize RNG seed on snapshot load, Peter Maydell, 2022/10/25
- [PULL 27/30] m68k/q800: do not re-randomize RNG seed on snapshot load, Peter Maydell, 2022/10/25
- Re: [PULL 00/30] target-arm queue, Stefan Hajnoczi, 2022/10/26
- Re: [PULL 00/30] target-arm queue, Stefan Hajnoczi, 2022/10/26