If the memory backend file is not large enough to hold the required 'size',
Qemu will report error and exit.
Signed-off-by: Haozhong Zhang <haozhong.zh...@intel.com>
Message-Id: <20161027042300.5929-3-haozhong.zh...@intel.com>
Reviewed-by: Eduardo Habkost <ehabk...@redhat.com>
---
Changes in RESEND:
* Use format string RAM_ADDR_FMT for variable 'memory'.
This change is to fix the build error.
* Add Eduardo's r-b.
* Add the message id of this thread.
---
exec.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/exec.c b/exec.c
index a2b371a..23c21c2 100644
--- a/exec.c
+++ b/exec.c
@@ -1316,6 +1316,13 @@ static void *file_ram_alloc(RAMBlock *block,
goto error;
}
+ if (file_size > 0 && file_size < memory) {
+ error_setg(errp, "backing store %s size 0x%" PRIx64
+ " does not match 'size' option 0x" RAM_ADDR_FMT,
+ path, file_size, memory);
+ goto error;
+ }
+
memory = ROUND_UP(memory, block->page_size);
/*
--
2.10.1
