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memory: Return -1 again on reads from unsigned regions

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This restore the behavior prior to b018ddf633 which accidentally changed
the return code to 0. Specifically guests probing for register existence
were affected by this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2013-07-16 14:45:16 +02:00 committed by Paolo Bonzini
parent b4afea11aa
commit 9b8c692435
1 changed files with 1 additions and 1 deletions
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2
memory.c
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@ -840,7 +840,7 @@ static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
if (current_cpu != NULL) {
cpu_unassigned_access(current_cpu, addr, false, false, 0, size);
}
return 0;
return -1ULL;
}
static void unassigned_mem_write(void *opaque, hwaddr addr,