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hw/ppc/e500: fix broken snapshot replay

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ppce500_reset_device_tree is registered for system reset, but after
c4b075318e this function rerandomizes rng-seed via
qemu_guest_getrandom_nofail. And when loading a snapshot, it tries to read
EVENT_RANDOM that doesn't exist, so we have an error:

  qemu-system-ppc: Missing random event in the replay log

To fix this, use qemu_register_reset_nosnapshotload instead of
qemu_register_reset.

Reported-by: Vitaly Cheptsov <cheptsov@ispras.ru>
Fixes: c4b075318e ("hw/ppc: pass random seed to fdt ")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1634
Signed-off-by: Maksim Kostin <maksim.kostin@ispras.ru>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
(cherry picked from commit 6ec65b69ba17c954414fa23a397fb8a3fcfb4a43)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Maksim Kostin 2023-08-09 13:07:33 +03:00 committed by Michael Tokarev
parent 6864f05cb1
commit 5358980d33
1 changed files with 1 additions and 1 deletions
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2
hw/ppc/e500.c
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@ -712,7 +712,7 @@ static int ppce500_prep_device_tree(PPCE500MachineState *machine,
p->kernel_base = kernel_base;
p->kernel_size = kernel_size;
qemu_register_reset(ppce500_reset_device_tree, p);
qemu_register_reset_nosnapshotload(ppce500_reset_device_tree, p);
p->notifier.notify = ppce500_init_notify;
qemu_add_machine_init_done_notifier(&p->notifier);