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Revert "memory: Return -1 again on reads from unsigned regions"

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This reverts commit 9b8c692435.

The commit was wrong: We only return -1 on invalid accesses, not on
valid but unbacked ones. This broke various corner cases.

Cc: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2013-09-02 18:43:31 +02:00 committed by Paolo Bonzini
parent 3bb28b7208
commit 68a7439a15
1 changed files with 1 additions and 1 deletions
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memory.c
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@ -872,7 +872,7 @@ 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 -1ULL;
return 0;
}
static void unassigned_mem_write(void *opaque, hwaddr addr,