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-rw-r--r--block.c5
-rw-r--r--block/vdi.c14
-rw-r--r--qapi/block-core.json4
-rw-r--r--qemu-img.c4
-rwxr-xr-xtests/qemu-iotests/08414
-rw-r--r--tests/qemu-iotests/084.out13
-rwxr-xr-xtests/qemu-iotests/11153
-rw-r--r--tests/qemu-iotests/111.out3
-rw-r--r--tests/qemu-iotests/group1
9 files changed, 87 insertions, 24 deletions
diff --git a/block.c b/block.c
index dacd8815d3..4b5735ca9a 100644
--- a/block.c
+++ b/block.c
@@ -5608,11 +5608,6 @@ void bdrv_img_create(const char *filename, const char *fmt,
ret = bdrv_open(&bs, backing_file, NULL, NULL, back_flags,
backing_drv, &local_err);
if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not open '%s': %s",
- backing_file,
- error_get_pretty(local_err));
- error_free(local_err);
- local_err = NULL;
goto out;
}
size = bdrv_getlength(bs);
diff --git a/block/vdi.c b/block/vdi.c
index e1d211c9f7..39070b75e8 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -120,8 +120,18 @@ typedef unsigned char uuid_t[16];
#define VDI_IS_ALLOCATED(X) ((X) < VDI_DISCARDED)
-/* max blocks in image is (0xffffffff / 4) */
-#define VDI_BLOCKS_IN_IMAGE_MAX 0x3fffffff
+/* The bmap will take up VDI_BLOCKS_IN_IMAGE_MAX * sizeof(uint32_t) bytes; since
+ * the bmap is read and written in a single operation, its size needs to be
+ * limited to INT_MAX; furthermore, when opening an image, the bmap size is
+ * rounded up to be aligned on BDRV_SECTOR_SIZE.
+ * Therefore this should satisfy the following:
+ * VDI_BLOCKS_IN_IMAGE_MAX * sizeof(uint32_t) + BDRV_SECTOR_SIZE == INT_MAX + 1
+ * (INT_MAX + 1 is the first value not representable as an int)
+ * This guarantees that any value below or equal to the constant will, when
+ * multiplied by sizeof(uint32_t) and rounded up to a BDRV_SECTOR_SIZE boundary,
+ * still be below or equal to INT_MAX. */
+#define VDI_BLOCKS_IN_IMAGE_MAX \
+ ((unsigned)((INT_MAX + 1u - BDRV_SECTOR_SIZE) / sizeof(uint32_t)))
#define VDI_DISK_SIZE_MAX ((uint64_t)VDI_BLOCKS_IN_IMAGE_MAX * \
(uint64_t)DEFAULT_CLUSTER_SIZE)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 77a0cfbd82..8c3e45d4c3 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1422,7 +1422,9 @@
'refblock_alloc.write_blocks', 'refblock_alloc.write_table',
'refblock_alloc.switch_table', 'cluster_alloc',
'cluster_alloc_bytes', 'cluster_free', 'flush_to_os',
- 'flush_to_disk' ] }
+ 'flush_to_disk', 'pwritev_rmw.head', 'pwritev_rmw.after_head',
+ 'pwritev_rmw.tail', 'pwritev_rmw.after_tail', 'pwritev',
+ 'pwritev_zero', 'pwritev_done', 'empty_image_prepare' ] }
##
# @BlkdebugInjectErrorOptions
diff --git a/qemu-img.c b/qemu-img.c
index 66a7eb4045..a42335c632 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1126,7 +1126,6 @@ static int img_compare(int argc, char **argv)
blk1 = img_open("image_1", filename1, fmt1, flags, true, quiet);
if (!blk1) {
- error_report("Can't open file %s", filename1);
ret = 2;
goto out3;
}
@@ -1134,7 +1133,6 @@ static int img_compare(int argc, char **argv)
blk2 = img_open("image_2", filename2, fmt2, flags, true, quiet);
if (!blk2) {
- error_report("Can't open file %s", filename2);
ret = 2;
goto out2;
}
@@ -1482,7 +1480,6 @@ static int img_convert(int argc, char **argv)
true, quiet);
g_free(id);
if (!blk[bs_i]) {
- error_report("Could not open '%s'", argv[optind + bs_i]);
ret = -1;
goto out;
}
@@ -2962,7 +2959,6 @@ static int img_amend(int argc, char **argv)
blk = img_open("image", filename, fmt, flags, true, quiet);
if (!blk) {
- error_report("Could not open image '%s'", filename);
ret = -1;
goto out;
}
diff --git a/tests/qemu-iotests/084 b/tests/qemu-iotests/084
index 2712c023a9..733018d4a8 100755
--- a/tests/qemu-iotests/084
+++ b/tests/qemu-iotests/084
@@ -66,15 +66,15 @@ stat -c"disk image file size in bytes: %s" "${TEST_IMG}"
# check for image size too large
# poke max image size, and appropriate blocks_in_image value
-echo "Test 1: Maximum size (1024 TB):"
-poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf0\xff\xff\xff\x03\x00"
-poke_file "$TEST_IMG" "$bii_offset" "\xff\xff\xff\x3f"
+echo "Test 1: Maximum size (512 TB - 128 MB):"
+poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x00\xf8\xff\xff\x01\x00"
+poke_file "$TEST_IMG" "$bii_offset" "\x80\xff\xff\x1f"
_img_info
echo
-echo "Test 2: Size too large (1024TB + 1)"
+echo "Test 2: Size too large (512 TB - 128 MB + 64 kB)"
# This should be too large (-EINVAL):
-poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\xf1\xff\xff\xff\x03\x00"
+poke_file "$TEST_IMG" "$ds_offset" "\x00\x00\x01\xf8\xff\xff\x01\x00"
_img_info
echo
@@ -89,9 +89,9 @@ _img_info
echo
echo "Test 4: Size valid (64M), but Blocks In Image exceeds max allowed"
-# Now check the bounds of blocks_in_image - 0x3fffffff should be the max
+# Now check the bounds of blocks_in_image - 0x1fffff80 should be the max
# value here, and we should get -ENOTSUP
-poke_file "$TEST_IMG" "$bii_offset" "\x00\x00\x00\x40"
+poke_file "$TEST_IMG" "$bii_offset" "\x81\xff\xff\x1f"
_img_info
# Finally, 1MB is the only block size supported. Verify that
diff --git a/tests/qemu-iotests/084.out b/tests/qemu-iotests/084.out
index ea29ae0b9d..5ece8299c8 100644
--- a/tests/qemu-iotests/084.out
+++ b/tests/qemu-iotests/084.out
@@ -17,17 +17,20 @@ file format: IMGFMT
virtual size: 64M (67108864 bytes)
cluster_size: 1048576
disk image file size in bytes: 1024
-Test 1: Maximum size (1024 TB):
-qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Could not open 'TEST_DIR/t.IMGFMT': Invalid argument
+Test 1: Maximum size (512 TB - 128 MB):
+image: TEST_DIR/t.IMGFMT
+file format: IMGFMT
+virtual size: 512T (562949819203584 bytes)
+cluster_size: 1048576
-Test 2: Size too large (1024TB + 1)
-qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported VDI image size (size is 0x3fffffff10000, max supported is 0x3fffffff00000)
+Test 2: Size too large (512 TB - 128 MB + 64 kB)
+qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported VDI image size (size is 0x1fffff8010000, max supported is 0x1fffff8000000)
Test 3: Size valid (64M), but Blocks In Image too small (63)
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': unsupported VDI image (disk size 67108864, image bitmap has room for 66060288)
Test 4: Size valid (64M), but Blocks In Image exceeds max allowed
-qemu-img: Could not open 'TEST_DIR/t.IMGFMT': unsupported VDI image (too many blocks 1073741824, max is 1073741823)
+qemu-img: Could not open 'TEST_DIR/t.IMGFMT': unsupported VDI image (too many blocks 536870785, max is 536870784)
Test 5: Valid Image: 64MB, Blocks In Image 64, Block Size 1MB
image: TEST_DIR/t.IMGFMT
diff --git a/tests/qemu-iotests/111 b/tests/qemu-iotests/111
new file mode 100755
index 0000000000..6011c94b71
--- /dev/null
+++ b/tests/qemu-iotests/111
@@ -0,0 +1,53 @@
+#!/bin/bash
+#
+# Test case for non-existing backing file when creating a qcow2 image
+# and not specifying the size
+#
+# Copyright (C) 2014 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=mreitz@redhat.com
+
+seq="$(basename $0)"
+echo "QA output created by $seq"
+
+here="$PWD"
+tmp=/tmp/$$
+status=1 # failure is the default!
+
+_cleanup()
+{
+ _cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qed qcow qcow2 vmdk
+_supported_proto file
+_supported_os Linux
+_unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat"
+
+$QEMU_IMG create -f $IMGFMT -b "$TEST_IMG.inexistent" "$TEST_IMG" 2>&1 \
+ | _filter_testdir | _filter_imgfmt
+
+# success, all done
+echo '*** done'
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/111.out b/tests/qemu-iotests/111.out
new file mode 100644
index 0000000000..683c01a679
--- /dev/null
+++ b/tests/qemu-iotests/111.out
@@ -0,0 +1,3 @@
+QA output created by 111
+qemu-img: TEST_DIR/t.IMGFMT: Could not open 'TEST_DIR/t.IMGFMT.inexistent': No such file or directory
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 7b2c66676b..7dfe46940a 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -111,3 +111,4 @@
105 rw auto quick
107 rw auto quick
108 rw auto quick
+111 rw auto quick