* [Qemu-devel] [6464] block-vpc: Fix support for images > 4 GB (Kevin Wolf)
@ 2009-01-27 14:29 Anthony Liguori
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From: Anthony Liguori @ 2009-01-27 14:29 UTC (permalink / raw)
To: qemu-devel
Revision: 6464
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6464
Author: aliguori
Date: 2009-01-27 14:29:15 +0000 (Tue, 27 Jan 2009)
Log Message:
-----------
block-vpc: Fix support for images > 4 GB (Kevin Wolf)
This patch fixes the truncation of sector offsets to 32 bits.
Signed-off-by: Kevin Wolf <kwolf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Modified Paths:
--------------
trunk/block-vpc.c
Modified: trunk/block-vpc.c
===================================================================
--- trunk/block-vpc.c 2009-01-26 22:21:30 UTC (rev 6463)
+++ trunk/block-vpc.c 2009-01-27 14:29:15 UTC (rev 6464)
@@ -256,7 +256,7 @@
if (pagetable_index >= s->max_table_entries || s->pagetable[pagetable_index] == 0xffffffff)
return -1; // not allocated
- bitmap_offset = 512 * s->pagetable[pagetable_index];
+ bitmap_offset = 512 * (uint64_t) s->pagetable[pagetable_index];
block_offset = bitmap_offset + s->bitmap_size + (512 * pageentry_index);
// We must ensure that we don't write to any sectors which are marked as
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