From 68a7439a150d6b4da99082ab454b9328b151bc25 Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Mon, 2 Sep 2013 18:43:31 +0200 Subject: [PATCH] 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 Signed-off-by: Paolo Bonzini --- memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/memory.c b/memory.c index 886f838951..5a10fd0bde 100644 --- 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,