[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[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: |
Wed, 2 Nov 2016 09:32:22 +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>
Reviewed-by: Eduardo Habkost <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..f3c2770 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 0x%" PRIx64
+ " does not match 'size' option 0x" RAM_ADDR_FMT,
+ path, file_size, memory);
+ goto error;
+ }
+
memory = ROUND_UP(memory, block->page_size);
/*
--
2.7.4