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[Qemu-devel] [PULL 07/30] exec.c: check memory backend file size with 's
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 07/30] exec.c: check memory backend file size with 'size' option |
Date: |
Tue, 1 Nov 2016 17:29:20 +0100 |
From: Haozhong Zhang <address@hidden>
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 <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
exec.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/exec.c b/exec.c
index f471e73..a3f9d8b 100644
--- a/exec.c
+++ b/exec.c
@@ -1321,6 +1321,13 @@ static void *file_ram_alloc(RAMBlock *block,
goto error;
}
+ if (file_size > 0 && file_size < memory) {
+ error_setg(errp, "backing store %s size %"PRId64
+ " does not match 'size' option %"PRIu64,
+ path, file_size, memory);
+ goto error;
+ }
+
memory = ROUND_UP(memory, block->page_size);
/*
--
2.7.4
- [Qemu-devel] [PULL v2 00/30] Misc patches for 2016-10-31, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 01/30] checkpatch: tweak "struct should normally be const" warning, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 02/30] nbd: Use CoQueue for free_sema instead of CoMutex, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 04/30] tests: send error_report to test log, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 03/30] qemu-error: remove dependency of stubs on monitor, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 05/30] exec.c: ensure all AddressSpaceDispatch updates under RCU, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 07/30] exec.c: check memory backend file size with 'size' option,
Paolo Bonzini <=
- [Qemu-devel] [PULL 06/30] exec.c: do not truncate non-empty memory backend file, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 08/30] nbd: Add qemu-nbd -D for human-readable description, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 10/30] nbd: Rename NBDRequest to NBDRequestData, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 09/30] nbd: Treat flags vs. command type as separate fields, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 13/30] nbd: Share common reply-sending code in server, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 11/30] nbd: Rename NbdClientSession to NBDClientSession, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 14/30] nbd: Send message along with server NBD_REP_ERR errors, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 15/30] nbd: Share common option-sending code in client, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 18/30] nbd: Less allocation during NBD_OPT_LIST, Paolo Bonzini, 2016/11/01
- [Qemu-devel] [PULL 17/30] nbd: Let client skip portions of server reply, Paolo Bonzini, 2016/11/01