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

This reverts commit 9b8c69243585a32d14b9bb9fcd52c37b0b5a1b71. 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>
2013-09-02 18:43:31 +02:00 · 2013-09-02 18:43:31 +02:00 · 68a7439a15
commit 68a7439a15
parent 3bb28b7208
1 changed files with 1 additions and 1 deletions
--- a/memory.c
+++ b/memory.c
@ -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,