* [PULL 00/17] Block layer patches
@ 2020-12-18 12:10 Kevin Wolf
2020-12-18 12:10 ` [PULL 01/17] iotests/210: Fix reference output Kevin Wolf
` (17 more replies)
0 siblings, 18 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
The following changes since commit 75ee62ac606bfc9eb59310b9446df3434bf6e8c2:
Merge remote-tracking branch 'remotes/ehabkost-gl/tags/x86-next-pull-request' into staging (2020-12-17 18:53:36 +0000)
are available in the Git repository at:
git://repo.or.cz/qemu/kevin.git tags/for-upstream
for you to fetch changes up to be7c5ddd0d80e2d6cf8e3ef12c049851d28d9c26:
block/vpc: Use sizeof() instead of HEADER_SIZE for footer size (2020-12-18 12:43:30 +0100)
----------------------------------------------------------------
Block layer patches:
- Add qemu-storage-daemon documentation
- hw/block/nand: Decommission the NAND museum
- vpc: Clean up some buffer abuse
- nfs: fix int overflow in nfs_client_open_qdict
- Several iotests fixes
----------------------------------------------------------------
Markus Armbruster (9):
block/vpc: Make vpc_open() read the full dynamic header
block/vpc: Don't abuse the footer buffer as BAT sector buffer
block/vpc: Don't abuse the footer buffer for dynamic header
block/vpc: Make vpc_checksum() take void *
block/vpc: Pad VHDDynDiskHeader, replace uint8_t[] buffers
block/vpc: Use sizeof() instead of 1024 for dynamic header size
block/vpc: Pad VHDFooter, replace uint8_t[] buffers
block/vpc: Pass footer buffers as VHDFooter * instead of uint8_t *
block/vpc: Use sizeof() instead of HEADER_SIZE for footer size
Max Reitz (1):
iotests/210: Fix reference output
Peter Lieven (1):
block/nfs: fix int overflow in nfs_client_open_qdict
Philippe Mathieu-Daudé (1):
hw/block/nand: Decommission the NAND museum
Stefan Hajnoczi (3):
docs: generate qemu-storage-daemon-qmp-ref(7) man page
docs: add qemu-storage-daemon(1) man page
MAINTAINERS: add Kevin Wolf as storage daemon maintainer
Vladimir Sementsov-Ogievskiy (2):
iotests: make _filter_qom_path more strict
iotests:172: use _filter_qom_path
docs/interop/conf.py | 2 +
docs/interop/index.rst | 1 +
docs/interop/qemu-storage-daemon-qmp-ref.rst | 13 +++
docs/meson.build | 1 +
docs/tools/conf.py | 2 +
docs/tools/index.rst | 1 +
docs/tools/qemu-storage-daemon.rst | 148 ++++++++++++++++++++++++++
block/nfs.c | 2 +-
block/vpc.c | 146 +++++++++++++------------
hw/block/nand.c | 12 +--
MAINTAINERS | 9 ++
storage-daemon/qapi/qapi-schema.json | 3 +
tests/qemu-iotests/172 | 2 +-
tests/qemu-iotests/172.out | 152 +++++++++++++--------------
tests/qemu-iotests/186.out | 56 +++++-----
tests/qemu-iotests/210.out | 2 +-
tests/qemu-iotests/common.filter | 2 +-
17 files changed, 361 insertions(+), 193 deletions(-)
create mode 100644 docs/interop/qemu-storage-daemon-qmp-ref.rst
create mode 100644 docs/tools/qemu-storage-daemon.rst
^ permalink raw reply [flat|nested] 19+ messages in thread
* [PULL 01/17] iotests/210: Fix reference output
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 02/17] hw/block/nand: Decommission the NAND museum Kevin Wolf
` (16 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Max Reitz <mreitz@redhat.com>
Commit 8b1170012b1 has added a global maximum disk length for the block
layer, so the error message when creating an overly large disk has
changed.
Fixes: 8b1170012b1de6649c66ac1887f4df7e312abf3b
("block: introduce BDRV_MAX_LENGTH")
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201214175158.299919-1-mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
tests/qemu-iotests/210.out | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/qemu-iotests/210.out b/tests/qemu-iotests/210.out
index a5e88e2a82..dc1a3c9786 100644
--- a/tests/qemu-iotests/210.out
+++ b/tests/qemu-iotests/210.out
@@ -182,7 +182,7 @@ Job failed: The requested file size is too large
=== Resize image with invalid sizes ===
{"execute": "block_resize", "arguments": {"node-name": "node1", "size": 9223372036854775296}}
-{"error": {"class": "GenericError", "desc": "The requested file size is too large"}}
+{"error": {"class": "GenericError", "desc": "Required too big image size, it must be not greater than 9223372035781033984"}}
{"execute": "block_resize", "arguments": {"node-name": "node1", "size": 9223372036854775808}}
{"error": {"class": "GenericError", "desc": "Invalid parameter type for 'size', expected: integer"}}
{"execute": "block_resize", "arguments": {"node-name": "node1", "size": 18446744073709551104}}
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 02/17] hw/block/nand: Decommission the NAND museum
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
2020-12-18 12:10 ` [PULL 01/17] iotests/210: Fix reference output Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 03/17] block/nfs: fix int overflow in nfs_client_open_qdict Kevin Wolf
` (15 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Philippe Mathieu-Daudé <f4bug@amsat.org>
This is the QEMU equivalent of this Linux commit (but 7 years later):
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f7025a43a9da2
The MTD subsystem has its own small museum of ancient NANDs
in a form of the CONFIG_MTD_NAND_MUSEUM_IDS configuration option.
The museum contains stone age NANDs with 256 bytes pages, as well
as iron age NANDs with 512 bytes per page and up to 8MiB page size.
It is with great sorrow that I inform you that the museum is being
decommissioned. The MTD subsystem is out of budget for Kconfig
options and already has too many of them, and there is a general
kernel trend to simplify the configuration menu.
We remove the stone age exhibits along with closing the museum,
but some of the iron age ones are transferred to the regular NAND
depot. Namely, only those which have unique device IDs are
transferred, and the ones which have conflicting device IDs are
removed.
The machine using this device are:
- axis-dev88
- tosa (via tc6393xb_init)
- spitz based (akita, borzoi, terrier)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214002620.342384-1-f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
hw/block/nand.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/hw/block/nand.c b/hw/block/nand.c
index 1d7a48a2ec..9ed54a0a92 100644
--- a/hw/block/nand.c
+++ b/hw/block/nand.c
@@ -137,7 +137,7 @@ static void mem_and(uint8_t *dest, const uint8_t *src, size_t n)
# define ADDR_SHIFT 16
# include "nand.c"
-/* Information based on Linux drivers/mtd/nand/nand_ids.c */
+/* Information based on Linux drivers/mtd/nand/raw/nand_ids.c */
static const struct {
int size;
int width;
@@ -147,21 +147,11 @@ static const struct {
} nand_flash_ids[0x100] = {
[0 ... 0xff] = { 0 },
- [0x6e] = { 1, 8, 8, 4, 0 },
- [0x64] = { 2, 8, 8, 4, 0 },
[0x6b] = { 4, 8, 9, 4, 0 },
- [0xe8] = { 1, 8, 8, 4, 0 },
- [0xec] = { 1, 8, 8, 4, 0 },
- [0xea] = { 2, 8, 8, 4, 0 },
- [0xd5] = { 4, 8, 9, 4, 0 },
[0xe3] = { 4, 8, 9, 4, 0 },
[0xe5] = { 4, 8, 9, 4, 0 },
[0xd6] = { 8, 8, 9, 4, 0 },
-
- [0x39] = { 8, 8, 9, 4, 0 },
[0xe6] = { 8, 8, 9, 4, 0 },
- [0x49] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 },
- [0x59] = { 8, 16, 9, 4, NAND_BUSWIDTH_16 },
[0x33] = { 16, 8, 9, 5, 0 },
[0x73] = { 16, 8, 9, 5, 0 },
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 03/17] block/nfs: fix int overflow in nfs_client_open_qdict
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
2020-12-18 12:10 ` [PULL 01/17] iotests/210: Fix reference output Kevin Wolf
2020-12-18 12:10 ` [PULL 02/17] hw/block/nand: Decommission the NAND museum Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 04/17] docs: generate qemu-storage-daemon-qmp-ref(7) man page Kevin Wolf
` (14 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Peter Lieven <pl@kamp.de>
nfs_client_open returns the file size in sectors. This effectively
makes it impossible to open files larger than 1TB.
Fixes: c22a03454544c2a08f1107c5cc8481a5574533d5
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <20201209121735.16437-1-pl@kamp.de>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/nfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/nfs.c b/block/nfs.c
index 77905f516d..8c1968bb41 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -592,7 +592,7 @@ static int64_t nfs_client_open_qdict(NFSClient *client, QDict *options,
int flags, int open_flags, Error **errp)
{
BlockdevOptionsNfs *opts;
- int ret;
+ int64_t ret;
opts = nfs_options_qdict_to_qapi(options, errp);
if (opts == NULL) {
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 04/17] docs: generate qemu-storage-daemon-qmp-ref(7) man page
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (2 preceding siblings ...)
2020-12-18 12:10 ` [PULL 03/17] block/nfs: fix int overflow in nfs_client_open_qdict Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 05/17] docs: add qemu-storage-daemon(1) " Kevin Wolf
` (13 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Stefan Hajnoczi <stefanha@redhat.com>
Although individual qemu-storage-daemon QMP commands are identical to
QEMU QMP commands, qemu-storage-daemon only supports a subset of QEMU's
QMP commands. Generate a manual page of just the commands supported by
qemu-storage-daemon so that users know exactly what is available in
qemu-storage-daemon.
Add an h1 heading in storage-daemon/qapi/qapi-schema.json so that
block-core.json is at the h2 heading level.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201209103802.350848-2-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
docs/interop/conf.py | 2 ++
docs/interop/index.rst | 1 +
docs/interop/qemu-storage-daemon-qmp-ref.rst | 13 +++++++++++++
docs/meson.build | 1 +
storage-daemon/qapi/qapi-schema.json | 3 +++
5 files changed, 20 insertions(+)
create mode 100644 docs/interop/qemu-storage-daemon-qmp-ref.rst
diff --git a/docs/interop/conf.py b/docs/interop/conf.py
index 2634ca3410..f4370aaa13 100644
--- a/docs/interop/conf.py
+++ b/docs/interop/conf.py
@@ -23,4 +23,6 @@ man_pages = [
[], 7),
('qemu-qmp-ref', 'qemu-qmp-ref', 'QEMU QMP Reference Manual',
[], 7),
+ ('qemu-storage-daemon-qmp-ref', 'qemu-storage-daemon-qmp-ref',
+ 'QEMU Storage Daemon QMP Reference Manual', [], 7),
]
diff --git a/docs/interop/index.rst b/docs/interop/index.rst
index cd78d679d8..95d56495f6 100644
--- a/docs/interop/index.rst
+++ b/docs/interop/index.rst
@@ -20,6 +20,7 @@ Contents:
qemu-ga
qemu-ga-ref
qemu-qmp-ref
+ qemu-storage-daemon-qmp-ref
vhost-user
vhost-user-gpu
vhost-vdpa
diff --git a/docs/interop/qemu-storage-daemon-qmp-ref.rst b/docs/interop/qemu-storage-daemon-qmp-ref.rst
new file mode 100644
index 0000000000..caf9dad23a
--- /dev/null
+++ b/docs/interop/qemu-storage-daemon-qmp-ref.rst
@@ -0,0 +1,13 @@
+QEMU Storage Daemon QMP Reference Manual
+========================================
+
+..
+ TODO: the old Texinfo manual used to note that this manual
+ is GPL-v2-or-later. We should make that reader-visible
+ both here and in our Sphinx manuals more generally.
+
+..
+ TODO: display the QEMU version, both here and in our Sphinx manuals
+ more generally.
+
+.. qapi-doc:: storage-daemon/qapi/qapi-schema.json
diff --git a/docs/meson.build b/docs/meson.build
index bb8fe4c9e4..71641b4fe0 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -56,6 +56,7 @@ if build_docs
'qemu-ga.8': (have_tools ? 'man8' : ''),
'qemu-ga-ref.7': 'man7',
'qemu-qmp-ref.7': 'man7',
+ 'qemu-storage-daemon-qmp-ref.7': (have_tools ? 'man7' : ''),
},
'tools': {
'qemu-img.1': (have_tools ? 'man1' : ''),
diff --git a/storage-daemon/qapi/qapi-schema.json b/storage-daemon/qapi/qapi-schema.json
index c6ad5ae1e3..28117c3aac 100644
--- a/storage-daemon/qapi/qapi-schema.json
+++ b/storage-daemon/qapi/qapi-schema.json
@@ -15,6 +15,9 @@
{ 'include': '../../qapi/pragma.json' }
+##
+# = Block devices
+##
{ 'include': '../../qapi/block-core.json' }
{ 'include': '../../qapi/block-export.json' }
{ 'include': '../../qapi/char.json' }
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 05/17] docs: add qemu-storage-daemon(1) man page
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (3 preceding siblings ...)
2020-12-18 12:10 ` [PULL 04/17] docs: generate qemu-storage-daemon-qmp-ref(7) man page Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 06/17] MAINTAINERS: add Kevin Wolf as storage daemon maintainer Kevin Wolf
` (12 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Stefan Hajnoczi <stefanha@redhat.com>
Document the qemu-storage-daemon tool. Most of the command-line options
are identical to their QEMU counterparts. Perhaps Sphinx hxtool
integration could be extended to extract documentation for individual
command-line options so they can be shared. For now the
qemu-storage-daemon simply refers to the qemu(1) man page where the
command-line options are identical.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201209103802.350848-3-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
docs/tools/conf.py | 2 +
docs/tools/index.rst | 1 +
docs/tools/qemu-storage-daemon.rst | 148 +++++++++++++++++++++++++++++
3 files changed, 151 insertions(+)
create mode 100644 docs/tools/qemu-storage-daemon.rst
diff --git a/docs/tools/conf.py b/docs/tools/conf.py
index 4760d36ff2..7072d99324 100644
--- a/docs/tools/conf.py
+++ b/docs/tools/conf.py
@@ -20,6 +20,8 @@ html_theme_options['description'] = \
man_pages = [
('qemu-img', 'qemu-img', u'QEMU disk image utility',
['Fabrice Bellard'], 1),
+ ('qemu-storage-daemon', 'qemu-storage-daemon', u'QEMU storage daemon',
+ [], 1),
('qemu-nbd', 'qemu-nbd', u'QEMU Disk Network Block Device Server',
['Anthony Liguori <anthony@codemonkey.ws>'], 8),
('qemu-pr-helper', 'qemu-pr-helper', 'QEMU persistent reservation helper',
diff --git a/docs/tools/index.rst b/docs/tools/index.rst
index b99f86c7c6..3a5829c17a 100644
--- a/docs/tools/index.rst
+++ b/docs/tools/index.rst
@@ -11,6 +11,7 @@ Contents:
:maxdepth: 2
qemu-img
+ qemu-storage-daemon
qemu-nbd
qemu-pr-helper
qemu-trace-stap
diff --git a/docs/tools/qemu-storage-daemon.rst b/docs/tools/qemu-storage-daemon.rst
new file mode 100644
index 0000000000..f63627eaf6
--- /dev/null
+++ b/docs/tools/qemu-storage-daemon.rst
@@ -0,0 +1,148 @@
+QEMU Storage Daemon
+===================
+
+Synopsis
+--------
+
+**qemu-storage-daemon** [options]
+
+Description
+-----------
+
+qemu-storage-daemon provides disk image functionality from QEMU, qemu-img, and
+qemu-nbd in a long-running process controlled via QMP commands without running
+a virtual machine. It can export disk images, run block job operations, and
+perform other disk-related operations. The daemon is controlled via a QMP
+monitor and initial configuration from the command-line.
+
+The daemon offers the following subset of QEMU features:
+
+* Block nodes
+* Block jobs
+* Block exports
+* Throttle groups
+* Character devices
+* Crypto and secrets
+* QMP
+* IOThreads
+
+Commands can be sent over a QEMU Monitor Protocol (QMP) connection. See the
+:manpage:`qemu-storage-daemon-qmp-ref(7)` manual page for a description of the
+commands.
+
+The daemon runs until it is stopped using the ``quit`` QMP command or
+SIGINT/SIGHUP/SIGTERM.
+
+**Warning:** Never modify images in use by a running virtual machine or any
+other process; this may destroy the image. Also, be aware that querying an
+image that is being modified by another process may encounter inconsistent
+state.
+
+Options
+-------
+
+.. program:: qemu-storage-daemon
+
+Standard options:
+
+.. option:: -h, --help
+
+ Display help and exit
+
+.. option:: -V, --version
+
+ Display version information and exit
+
+.. option:: -T, --trace [[enable=]PATTERN][,events=FILE][,file=FILE]
+
+ .. include:: ../qemu-option-trace.rst.inc
+
+.. option:: --blockdev BLOCKDEVDEF
+
+ is a block node definition. See the :manpage:`qemu(1)` manual page for a
+ description of block node properties and the :manpage:`qemu-block-drivers(7)`
+ manual page for a description of driver-specific parameters.
+
+.. option:: --chardev CHARDEVDEF
+
+ is a character device definition. See the :manpage:`qemu(1)` manual page for
+ a description of character device properties. A common character device
+ definition configures a UNIX domain socket::
+
+ --chardev socket,id=char1,path=/tmp/qmp.sock,server,nowait
+
+.. option:: --export [type=]nbd,id=<id>,node-name=<node-name>[,name=<export-name>][,writable=on|off][,bitmap=<name>]
+ --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,addr.type=unix,addr.path=<socket-path>[,writable=on|off][,logical-block-size=<block-size>][,num-queues=<num-queues>]
+ --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,addr.type=fd,addr.str=<fd>[,writable=on|off][,logical-block-size=<block-size>][,num-queues=<num-queues>]
+
+ is a block export definition. ``node-name`` is the block node that should be
+ exported. ``writable`` determines whether or not the export allows write
+ requests for modifying data (the default is off).
+
+ The ``nbd`` export type requires ``--nbd-server`` (see below). ``name`` is
+ the NBD export name. ``bitmap`` is the name of a dirty bitmap reachable from
+ the block node, so the NBD client can use NBD_OPT_SET_META_CONTEXT with the
+ metadata context name "qemu:dirty-bitmap:BITMAP" to inspect the bitmap.
+
+ The ``vhost-user-blk`` export type takes a vhost-user socket address on which
+ it accept incoming connections. Both
+ ``addr.type=unix,addr.path=<socket-path>`` for UNIX domain sockets and
+ ``addr.type=fd,addr.str=<fd>`` for file descriptor passing are supported.
+ ``logical-block-size`` sets the logical block size in bytes (the default is
+ 512). ``num-queues`` sets the number of virtqueues (the default is 1).
+
+.. option:: --monitor MONITORDEF
+
+ is a QMP monitor definition. See the :manpage:`qemu(1)` manual page for
+ a description of QMP monitor properties. A common QMP monitor definition
+ configures a monitor on character device ``char1``::
+
+ --monitor chardev=char1
+
+.. option:: --nbd-server addr.type=inet,addr.host=<host>,addr.port=<port>[,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]
+ --nbd-server addr.type=unix,addr.path=<path>[,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]
+
+ is a server for NBD exports. Both TCP and UNIX domain sockets are supported.
+ TLS encryption can be configured using ``--object`` tls-creds-* and authz-*
+ secrets (see below).
+
+ To configure an NBD server on UNIX domain socket path ``/tmp/nbd.sock``::
+
+ --nbd-server addr.type=unix,addr.path=/tmp/nbd.sock
+
+.. option:: --object help
+ --object <type>,help
+ --object <type>[,<property>=<value>...]
+
+ is a QEMU user creatable object definition. List object types with ``help``.
+ List object properties with ``<type>,help``. See the :manpage:`qemu(1)`
+ manual page for a description of the object properties.
+
+Examples
+--------
+Launch the daemon with QMP monitor socket ``qmp.sock`` so clients can execute
+QMP commands::
+
+ $ qemu-storage-daemon \
+ --chardev socket,path=qmp.sock,server,nowait,id=char1 \
+ --monitor chardev=char1
+
+Export raw image file ``disk.img`` over NBD UNIX domain socket ``nbd.sock``::
+
+ $ qemu-storage-daemon \
+ --blockdev driver=file,node-name=disk,filename=disk.img \
+ --nbd-server addr.type=unix,addr.path=nbd.sock \
+ --export type=nbd,id=export,node-name=disk,writable=on
+
+Export a qcow2 image file ``disk.qcow2`` as a vhosts-user-blk device over UNIX
+domain socket ``vhost-user-blk.sock``::
+
+ $ qemu-storage-daemon \
+ --blockdev driver=file,node-name=file,filename=disk.qcow2 \
+ --blockdev driver=qcow2,node-name=qcow2,file=file \
+ --export type=vhost-user-blk,id=export,addr.type=unix,addr.path=vhost-user-blk.sock,node-name=qcow2
+
+See also
+--------
+
+:manpage:`qemu(1)`, :manpage:`qemu-block-drivers(7)`, :manpage:`qemu-storage-daemon-qmp-ref(7)`
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 06/17] MAINTAINERS: add Kevin Wolf as storage daemon maintainer
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (4 preceding siblings ...)
2020-12-18 12:10 ` [PULL 05/17] docs: add qemu-storage-daemon(1) " Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 07/17] iotests: make _filter_qom_path more strict Kevin Wolf
` (11 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Stefan Hajnoczi <stefanha@redhat.com>
The MAINTAINERS file was not updated when the storage daemon was merged.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201209103802.350848-4-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
MAINTAINERS | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e7c8f0488..0e139d9612 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2165,6 +2165,15 @@ F: qobject/block-qdict.c
F: tests/check-block-qdict.c
T: git https://repo.or.cz/qemu/kevin.git block
+Storage daemon
+M: Kevin Wolf <kwolf@redhat.com>
+L: qemu-block@nongnu.org
+S: Supported
+F: storage-daemon/
+F: docs/interop/qemu-storage-daemon-qmp-ref.rst
+F: docs/tools/qemu-storage-daemon.rst
+T: git https://repo.or.cz/qemu/kevin.git block
+
Block I/O path
M: Stefan Hajnoczi <stefanha@redhat.com>
M: Fam Zheng <fam@euphon.net>
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 07/17] iotests: make _filter_qom_path more strict
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (5 preceding siblings ...)
2020-12-18 12:10 ` [PULL 06/17] MAINTAINERS: add Kevin Wolf as storage daemon maintainer Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 08/17] iotests:172: use _filter_qom_path Kevin Wolf
` (10 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
According to original commit, that added this filter (627f607e3dddb2),
the problematic thing in qom path is device[NUMBER], not the whole
path. Seems that tracking the other parts of the path in iotest output
is not bad. Let's make _filter_qom_path stricter.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201216095205.526235-2-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
tests/qemu-iotests/186.out | 56 ++++++++++++++++----------------
tests/qemu-iotests/common.filter | 2 +-
2 files changed, 29 insertions(+), 29 deletions(-)
diff --git a/tests/qemu-iotests/186.out b/tests/qemu-iotests/186.out
index 5b3504042a..01530040e5 100644
--- a/tests/qemu-iotests/186.out
+++ b/tests/qemu-iotests/186.out
@@ -7,7 +7,7 @@ Testing: -device floppy
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
/machine/peripheral-anon/device[1]: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -23,7 +23,7 @@ Testing: -device ide-cd
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
/machine/peripheral-anon/device[1]: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -39,7 +39,7 @@ Testing: -device scsi-cd
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
/machine/peripheral-anon/device[1]: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -58,7 +58,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device ide-hd,d
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Cache mode: writeback
(qemu) quit
@@ -74,7 +74,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device scsi-hd,
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Cache mode: writeback
(qemu) quit
@@ -90,7 +90,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device virtio-b
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -98,7 +98,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device virtio-b
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral/qdev_id/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -106,7 +106,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device floppy,d
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -124,7 +124,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device ide-cd,d
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -142,7 +142,7 @@ Testing: -blockdev driver=null-co,read-zeroes=on,node-name=null -device scsi-cd,
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
null: json:{"read-zeroes": true, "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -191,7 +191,7 @@ none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
Cache mode: writeback
null: json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral/qdev_id/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -241,7 +241,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device ide
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Cache mode: writeback
(qemu) quit
@@ -257,7 +257,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device scs
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Cache mode: writeback
(qemu) quit
@@ -273,7 +273,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device vir
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -281,7 +281,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device vir
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral/qdev_id/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -289,7 +289,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device flo
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -307,7 +307,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device ide
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -325,7 +325,7 @@ Testing: -drive if=none,driver=null-co,read-zeroes=on,node-name=null -device scs
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0 (null): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -353,7 +353,7 @@ Testing: -drive if=none -device floppy,drive=none0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -369,7 +369,7 @@ Testing: -drive if=none -device ide-cd,drive=none0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -385,7 +385,7 @@ Testing: -drive if=none -device scsi-cd,drive=none0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
none0: [not inserted]
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -404,7 +404,7 @@ Testing: -drive if=floppy
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
floppy0: [not inserted]
- Attached to: PATH
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -412,7 +412,7 @@ Testing: -drive if=floppy,driver=null-co,read-zeroes=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
floppy0 (NODE_NAME): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -421,7 +421,7 @@ Testing: -drive if=ide,driver=null-co,read-zeroes=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
ide0-hd0 (NODE_NAME): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/unattached/device[N]
Cache mode: writeback
(qemu) quit
@@ -429,7 +429,7 @@ Testing: -drive if=ide,media=cdrom
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
ide0-cd0: [not inserted]
- Attached to: PATH
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
(qemu) quit
@@ -437,7 +437,7 @@ Testing: -drive if=ide,driver=null-co,read-zeroes=on,media=cdrom
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
ide0-cd0 (NODE_NAME): json:{"read-zeroes": "on", "driver": "null-co"} (null-co, read-only)
- Attached to: PATH
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
(qemu) quit
@@ -446,7 +446,7 @@ Testing: -drive if=virtio,driver=null-co,read-zeroes=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
virtio0 (NODE_NAME): json:{"read-zeroes": "on", "driver": "null-co"} (null-co)
- Attached to: PATH
+ Attached to: /machine/peripheral-anon/device[N]/virtio-backend
Cache mode: writeback
(qemu) quit
@@ -454,7 +454,7 @@ Testing: -drive if=pflash,driver=null-co,read-zeroes=on,size=1M
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
pflash0 (NODE_NAME): json:{"read-zeroes": "on", "driver": "null-co", "size": "1M"} (null-co)
- Attached to: PATH
+ Attached to: /machine/system.flash0
Cache mode: writeback
(qemu) quit
diff --git a/tests/qemu-iotests/common.filter b/tests/qemu-iotests/common.filter
index 172ea5752e..268b749e2f 100644
--- a/tests/qemu-iotests/common.filter
+++ b/tests/qemu-iotests/common.filter
@@ -37,7 +37,7 @@ _filter_generated_node_ids()
_filter_qom_path()
{
- $SED -e 's#\(Attached to: *\) /.*#\1 PATH#'
+ $SED -e '/Attached to:/s/\device[[0-9]\+\]/device[N]/g'
}
# replace occurrences of the actual TEST_DIR value with TEST_DIR
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 08/17] iotests:172: use _filter_qom_path
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (6 preceding siblings ...)
2020-12-18 12:10 ` [PULL 07/17] iotests: make _filter_qom_path more strict Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 09/17] block/vpc: Make vpc_open() read the full dynamic header Kevin Wolf
` (9 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
device[NUMBER] thing in QOM path is not stable and tracking it during
code modifications is not fun. Let's filter it like it's already done
in iotest 186.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201216095205.526235-3-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
tests/qemu-iotests/172 | 2 +-
tests/qemu-iotests/172.out | 152 ++++++++++++++++++-------------------
2 files changed, 77 insertions(+), 77 deletions(-)
diff --git a/tests/qemu-iotests/172 b/tests/qemu-iotests/172
index 3abfa72948..b45782e8db 100755
--- a/tests/qemu-iotests/172
+++ b/tests/qemu-iotests/172
@@ -73,7 +73,7 @@ check_floppy_qtree()
(QEMU_OPTIONS="" do_run_qemu "$@" |
_filter_testdir |_filter_generated_node_ids | _filter_hmp |
sed -ne '/^ dev: isa-fdc/,/^ dev:/{x;p};/^[a-z][^ ]* (NODE_NAME):* /,/^(qemu)$/{p}') 2>&1 |
- _filter_win32 | _filter_qemu
+ _filter_win32 | _filter_qemu | _filter_qom_path
}
check_cache_mode()
diff --git a/tests/qemu-iotests/172.out b/tests/qemu-iotests/172.out
index cca2894af0..2cd4a8fd83 100644
--- a/tests/qemu-iotests/172.out
+++ b/tests/qemu-iotests/172.out
@@ -63,12 +63,12 @@ Testing: -fda TEST_DIR/t.qcow2
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -114,16 +114,16 @@ Testing: -fdb TEST_DIR/t.qcow2
share-rw = false
drive-type = "288"
floppy1 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
floppy0: [not inserted]
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -169,17 +169,17 @@ Testing: -fda TEST_DIR/t.qcow2 -fdb TEST_DIR/t.qcow2.2
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
floppy1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -255,12 +255,12 @@ Testing: -drive if=floppy,file=TEST_DIR/t.qcow2
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -306,16 +306,16 @@ Testing: -drive if=floppy,file=TEST_DIR/t.qcow2,index=1
share-rw = false
drive-type = "288"
floppy1 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
floppy0: [not inserted]
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -361,17 +361,17 @@ Testing: -drive if=floppy,file=TEST_DIR/t.qcow2 -drive if=floppy,file=TEST_DIR/t
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
floppy1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -411,12 +411,12 @@ Use -device floppy,unit=0,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -453,12 +453,12 @@ Use -device floppy,unit=1,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -508,17 +508,17 @@ Use -device floppy,unit=1,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -556,12 +556,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -596,12 +596,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0,unit=1
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -647,17 +647,17 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.qco
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[1]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -708,17 +708,17 @@ Use -device floppy,unit=1,drive=... instead.
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -766,17 +766,17 @@ Use -device floppy,unit=0,drive=... instead.
share-rw = false
drive-type = "144"
floppy1 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[16]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[23]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -838,17 +838,17 @@ Testing: -fda TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.qcow2.2 -device fl
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -894,17 +894,17 @@ Testing: -fda TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.qcow2.2 -device fl
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -950,17 +950,17 @@ Testing: -fdb TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.qcow2.2 -device fl
share-rw = false
drive-type = "144"
floppy1 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1006,17 +1006,17 @@ Testing: -fdb TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.qcow2.2 -device fl
share-rw = false
drive-type = "144"
floppy1 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1071,17 +1071,17 @@ Testing: -drive if=floppy,file=TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.q
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1127,17 +1127,17 @@ Testing: -drive if=floppy,file=TEST_DIR/t.qcow2 -drive if=none,file=TEST_DIR/t.q
share-rw = false
drive-type = "144"
floppy0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none0 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1191,17 +1191,17 @@ Use -device floppy,unit=0,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1249,17 +1249,17 @@ Use -device floppy,unit=0,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1307,17 +1307,17 @@ Use -device floppy,unit=1,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1365,17 +1365,17 @@ Use -device floppy,unit=1,drive=... instead.
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/unattached/device[15]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
none1 (NODE_NAME): TEST_DIR/t.qcow2.2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[22]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1410,12 +1410,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -global floppy.drive=none0 -device
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1603,12 +1603,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0,drive-t
share-rw = false
drive-type = "120"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1643,12 +1643,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0,drive-t
share-rw = false
drive-type = "288"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1686,12 +1686,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0,logical
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
@@ -1726,12 +1726,12 @@ Testing: -drive if=none,file=TEST_DIR/t.qcow2 -device floppy,drive=none0,physica
share-rw = false
drive-type = "144"
none0 (NODE_NAME): TEST_DIR/t.qcow2 (qcow2)
- Attached to: /machine/peripheral-anon/device[0]
+ Attached to: /machine/peripheral-anon/device[N]
Removable device: not locked, tray closed
Cache mode: writeback
ide1-cd0: [not inserted]
- Attached to: /machine/unattached/device[21]
+ Attached to: /machine/unattached/device[N]
Removable device: not locked, tray closed
sd0: [not inserted]
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 09/17] block/vpc: Make vpc_open() read the full dynamic header
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (7 preceding siblings ...)
2020-12-18 12:10 ` [PULL 08/17] iotests:172: use _filter_qom_path Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 10/17] block/vpc: Don't abuse the footer buffer as BAT sector buffer Kevin Wolf
` (8 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
The dynamic header's size is 1024 bytes.
vpc_open() reads only the 512 bytes of the dynamic header into buf[].
Works, because it doesn't actually access the second half. However, a
colleague told me that GCC 11 warns:
../block/vpc.c:358:51: error: array subscript 'struct VHDDynDiskHeader[0]' is partly outside array bounds of 'uint8_t[512]' [-Werror=array-bounds]
Clean up to read the full header.
Rename buf[] to dyndisk_header_buf[] while there.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-2-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 1ab55f9287..2fcf3f6283 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -220,7 +220,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
QemuOpts *opts = NULL;
Error *local_err = NULL;
bool use_chs;
- uint8_t buf[HEADER_SIZE];
+ uint8_t dyndisk_header_buf[1024];
uint32_t checksum;
uint64_t computed_size;
uint64_t pagetable_size;
@@ -340,14 +340,14 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
}
if (disk_type == VHD_DYNAMIC) {
- ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset), buf,
- HEADER_SIZE);
+ ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset),
+ dyndisk_header_buf, 1024);
if (ret < 0) {
error_setg(errp, "Error reading dynamic VHD header");
goto fail;
}
- dyndisk_header = (VHDDynDiskHeader *) buf;
+ dyndisk_header = (VHDDynDiskHeader *)dyndisk_header_buf;
if (strncmp(dyndisk_header->magic, "cxsparse", 8)) {
error_setg(errp, "Invalid header magic");
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 10/17] block/vpc: Don't abuse the footer buffer as BAT sector buffer
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (8 preceding siblings ...)
2020-12-18 12:10 ` [PULL 09/17] block/vpc: Make vpc_open() read the full dynamic header Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 11/17] block/vpc: Don't abuse the footer buffer for dynamic header Kevin Wolf
` (7 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
create_dynamic_disk() takes a buffer holding the footer as first
argument. It writes out the footer (512 bytes), then reuses the
buffer to initialize and write out the dynamic header (1024 bytes),
then reuses it again to initialize and write out BAT sectors (512).
Works, because the caller passes a buffer that is large enough for all
three purposes. I hate that.
Use a separate buffer for writing out BAT sectors. The next commit
will do the same for the dynamic header.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-3-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 2fcf3f6283..d18ecc3da1 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -824,6 +824,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
{
VHDDynDiskHeader *dyndisk_header =
(VHDDynDiskHeader *) buf;
+ uint8_t bat_sector[512];
size_t block_size, num_bat_entries;
int i;
int ret;
@@ -847,9 +848,9 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
/* Write the initial BAT */
offset = 3 * 512;
- memset(buf, 0xFF, 512);
+ memset(bat_sector, 0xFF, 512);
for (i = 0; i < DIV_ROUND_UP(num_bat_entries * 4, 512); i++) {
- ret = blk_pwrite(blk, offset, buf, 512, 0);
+ ret = blk_pwrite(blk, offset, bat_sector, 512, 0);
if (ret < 0) {
goto fail;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 11/17] block/vpc: Don't abuse the footer buffer for dynamic header
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (9 preceding siblings ...)
2020-12-18 12:10 ` [PULL 10/17] block/vpc: Don't abuse the footer buffer as BAT sector buffer Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 12/17] block/vpc: Make vpc_checksum() take void * Kevin Wolf
` (6 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
create_dynamic_disk() takes a buffer holding the footer as first
argument. It writes out the footer (512 bytes), then reuses the
buffer to initialize and write out the dynamic header (1024 bytes).
Works, because the caller passes a buffer that is large enough for
both purposes. I hate that.
Use a separate buffer for the dynamic header, and adjust the caller's
buffer.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-4-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index d18ecc3da1..34186640ee 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -822,8 +822,9 @@ static int calculate_geometry(int64_t total_sectors, uint16_t *cyls,
static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
int64_t total_sectors)
{
+ uint8_t dyndisk_header_buf[1024];
VHDDynDiskHeader *dyndisk_header =
- (VHDDynDiskHeader *) buf;
+ (VHDDynDiskHeader *)dyndisk_header_buf;
uint8_t bat_sector[512];
size_t block_size, num_bat_entries;
int i;
@@ -858,7 +859,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
}
/* Prepare the Dynamic Disk Header */
- memset(buf, 0, 1024);
+ memset(dyndisk_header_buf, 0, 1024);
memcpy(dyndisk_header->magic, "cxsparse", 8);
@@ -872,12 +873,13 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
dyndisk_header->block_size = cpu_to_be32(block_size);
dyndisk_header->max_table_entries = cpu_to_be32(num_bat_entries);
- dyndisk_header->checksum = cpu_to_be32(vpc_checksum(buf, 1024));
+ dyndisk_header->checksum = cpu_to_be32(vpc_checksum(dyndisk_header_buf,
+ 1024));
/* Write the header */
offset = 512;
- ret = blk_pwrite(blk, offset, buf, 1024, 0);
+ ret = blk_pwrite(blk, offset, dyndisk_header_buf, 1024, 0);
if (ret < 0) {
goto fail;
}
@@ -972,8 +974,8 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
BlockBackend *blk = NULL;
BlockDriverState *bs = NULL;
- uint8_t buf[1024];
- VHDFooter *footer = (VHDFooter *) buf;
+ uint8_t footer_buf[HEADER_SIZE];
+ VHDFooter *footer = (VHDFooter *)footer_buf;
uint16_t cyls = 0;
uint8_t heads = 0;
uint8_t secs_per_cyl = 0;
@@ -1036,7 +1038,7 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
}
/* Prepare the Hard Disk Footer */
- memset(buf, 0, 1024);
+ memset(footer_buf, 0, HEADER_SIZE);
memcpy(footer->creator, "conectix", 8);
if (vpc_opts->force_size) {
@@ -1069,15 +1071,15 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
qemu_uuid_generate(&uuid);
footer->uuid = uuid;
- footer->checksum = cpu_to_be32(vpc_checksum(buf, HEADER_SIZE));
+ footer->checksum = cpu_to_be32(vpc_checksum(footer_buf, HEADER_SIZE));
if (disk_type == VHD_DYNAMIC) {
- ret = create_dynamic_disk(blk, buf, total_sectors);
+ ret = create_dynamic_disk(blk, footer_buf, total_sectors);
if (ret < 0) {
error_setg(errp, "Unable to create or write VHD header");
}
} else {
- ret = create_fixed_disk(blk, buf, total_size, errp);
+ ret = create_fixed_disk(blk, footer_buf, total_size, errp);
}
out:
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 12/17] block/vpc: Make vpc_checksum() take void *
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (10 preceding siblings ...)
2020-12-18 12:10 ` [PULL 11/17] block/vpc: Don't abuse the footer buffer for dynamic header Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 13/17] block/vpc: Pad VHDDynDiskHeader, replace uint8_t[] buffers Kevin Wolf
` (5 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Some of the next commits will checksum structs. Change vpc_checksum()
to take void * instead of uint8_t, to save us pointless casts to
uint8_t *.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-5-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/vpc.c b/block/vpc.c
index 34186640ee..5af9837806 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -172,8 +172,9 @@ static QemuOptsList vpc_runtime_opts = {
static QemuOptsList vpc_create_opts;
-static uint32_t vpc_checksum(uint8_t *buf, size_t size)
+static uint32_t vpc_checksum(void *p, size_t size)
{
+ uint8_t *buf = p;
uint32_t res = 0;
int i;
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 13/17] block/vpc: Pad VHDDynDiskHeader, replace uint8_t[] buffers
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (11 preceding siblings ...)
2020-12-18 12:10 ` [PULL 12/17] block/vpc: Make vpc_checksum() take void * Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 14/17] block/vpc: Use sizeof() instead of 1024 for dynamic header size Kevin Wolf
` (4 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Pad VHDDynDiskHeader as specified in the "Virtual Hard Disk Image
Format Specification" version 1.0[*]. Change dynamic disk header
buffers from uint8_t[1024] to VHDDynDiskHeader. Their size remains
the same.
The VHDDynDiskHeader * variables pointing to a VHDDynDiskHeader
variable right next to it are now silly. Eliminate them.
[*] http://download.microsoft.com/download/f/f/e/ffef50a5-07dd-4cf8-aaa3-442c0673a029/Virtual%20Hard%20Disk%20Format%20Spec_10_18_06.doc
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-6-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 41 +++++++++++++++++++----------------------
1 file changed, 19 insertions(+), 22 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 5af9837806..08a0f710ad 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -127,8 +127,11 @@ typedef struct vhd_dyndisk_header {
uint32_t reserved;
uint64_t data_offset;
} parent_locator[8];
+ uint8_t reserved2[256];
} QEMU_PACKED VHDDynDiskHeader;
+QEMU_BUILD_BUG_ON(sizeof(VHDDynDiskHeader) != 1024);
+
typedef struct BDRVVPCState {
CoMutex lock;
uint8_t footer_buf[HEADER_SIZE];
@@ -217,11 +220,10 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
BDRVVPCState *s = bs->opaque;
int i;
VHDFooter *footer;
- VHDDynDiskHeader *dyndisk_header;
QemuOpts *opts = NULL;
Error *local_err = NULL;
bool use_chs;
- uint8_t dyndisk_header_buf[1024];
+ VHDDynDiskHeader dyndisk_header;
uint32_t checksum;
uint64_t computed_size;
uint64_t pagetable_size;
@@ -342,21 +344,19 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
if (disk_type == VHD_DYNAMIC) {
ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset),
- dyndisk_header_buf, 1024);
+ &dyndisk_header, 1024);
if (ret < 0) {
error_setg(errp, "Error reading dynamic VHD header");
goto fail;
}
- dyndisk_header = (VHDDynDiskHeader *)dyndisk_header_buf;
-
- if (strncmp(dyndisk_header->magic, "cxsparse", 8)) {
+ if (strncmp(dyndisk_header.magic, "cxsparse", 8)) {
error_setg(errp, "Invalid header magic");
ret = -EINVAL;
goto fail;
}
- s->block_size = be32_to_cpu(dyndisk_header->block_size);
+ s->block_size = be32_to_cpu(dyndisk_header.block_size);
if (!is_power_of_2(s->block_size) || s->block_size < BDRV_SECTOR_SIZE) {
error_setg(errp, "Invalid block size %" PRIu32, s->block_size);
ret = -EINVAL;
@@ -364,7 +364,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
}
s->bitmap_size = ((s->block_size / (8 * 512)) + 511) & ~511;
- s->max_table_entries = be32_to_cpu(dyndisk_header->max_table_entries);
+ s->max_table_entries = be32_to_cpu(dyndisk_header.max_table_entries);
if ((bs->total_sectors * 512) / s->block_size > 0xffffffffU) {
error_setg(errp, "Too many blocks");
@@ -396,7 +396,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- s->bat_offset = be64_to_cpu(dyndisk_header->table_offset);
+ s->bat_offset = be64_to_cpu(dyndisk_header.table_offset);
ret = bdrv_pread(bs->file, s->bat_offset, s->pagetable,
pagetable_size);
@@ -823,9 +823,7 @@ static int calculate_geometry(int64_t total_sectors, uint16_t *cyls,
static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
int64_t total_sectors)
{
- uint8_t dyndisk_header_buf[1024];
- VHDDynDiskHeader *dyndisk_header =
- (VHDDynDiskHeader *)dyndisk_header_buf;
+ VHDDynDiskHeader dyndisk_header;
uint8_t bat_sector[512];
size_t block_size, num_bat_entries;
int i;
@@ -860,27 +858,26 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
}
/* Prepare the Dynamic Disk Header */
- memset(dyndisk_header_buf, 0, 1024);
+ memset(&dyndisk_header, 0, 1024);
- memcpy(dyndisk_header->magic, "cxsparse", 8);
+ memcpy(dyndisk_header.magic, "cxsparse", 8);
/*
* Note: The spec is actually wrong here for data_offset, it says
* 0xFFFFFFFF, but MS tools expect all 64 bits to be set.
*/
- dyndisk_header->data_offset = cpu_to_be64(0xFFFFFFFFFFFFFFFFULL);
- dyndisk_header->table_offset = cpu_to_be64(3 * 512);
- dyndisk_header->version = cpu_to_be32(0x00010000);
- dyndisk_header->block_size = cpu_to_be32(block_size);
- dyndisk_header->max_table_entries = cpu_to_be32(num_bat_entries);
+ dyndisk_header.data_offset = cpu_to_be64(0xFFFFFFFFFFFFFFFFULL);
+ dyndisk_header.table_offset = cpu_to_be64(3 * 512);
+ dyndisk_header.version = cpu_to_be32(0x00010000);
+ dyndisk_header.block_size = cpu_to_be32(block_size);
+ dyndisk_header.max_table_entries = cpu_to_be32(num_bat_entries);
- dyndisk_header->checksum = cpu_to_be32(vpc_checksum(dyndisk_header_buf,
- 1024));
+ dyndisk_header.checksum = cpu_to_be32(vpc_checksum(&dyndisk_header, 1024));
/* Write the header */
offset = 512;
- ret = blk_pwrite(blk, offset, dyndisk_header_buf, 1024, 0);
+ ret = blk_pwrite(blk, offset, &dyndisk_header, 1024, 0);
if (ret < 0) {
goto fail;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 14/17] block/vpc: Use sizeof() instead of 1024 for dynamic header size
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (12 preceding siblings ...)
2020-12-18 12:10 ` [PULL 13/17] block/vpc: Pad VHDDynDiskHeader, replace uint8_t[] buffers Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 15/17] block/vpc: Pad VHDFooter, replace uint8_t[] buffers Kevin Wolf
` (3 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-7-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 08a0f710ad..6cb656ac82 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -344,7 +344,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
if (disk_type == VHD_DYNAMIC) {
ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset),
- &dyndisk_header, 1024);
+ &dyndisk_header, sizeof(dyndisk_header));
if (ret < 0) {
error_setg(errp, "Error reading dynamic VHD header");
goto fail;
@@ -858,7 +858,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
}
/* Prepare the Dynamic Disk Header */
- memset(&dyndisk_header, 0, 1024);
+ memset(&dyndisk_header, 0, sizeof(dyndisk_header));
memcpy(dyndisk_header.magic, "cxsparse", 8);
@@ -872,12 +872,13 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
dyndisk_header.block_size = cpu_to_be32(block_size);
dyndisk_header.max_table_entries = cpu_to_be32(num_bat_entries);
- dyndisk_header.checksum = cpu_to_be32(vpc_checksum(&dyndisk_header, 1024));
+ dyndisk_header.checksum = cpu_to_be32(
+ vpc_checksum(&dyndisk_header, sizeof(dyndisk_header)));
/* Write the header */
offset = 512;
- ret = blk_pwrite(blk, offset, &dyndisk_header, 1024, 0);
+ ret = blk_pwrite(blk, offset, &dyndisk_header, sizeof(dyndisk_header), 0);
if (ret < 0) {
goto fail;
}
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 15/17] block/vpc: Pad VHDFooter, replace uint8_t[] buffers
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (13 preceding siblings ...)
2020-12-18 12:10 ` [PULL 14/17] block/vpc: Use sizeof() instead of 1024 for dynamic header size Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 16/17] block/vpc: Pass footer buffers as VHDFooter * instead of uint8_t * Kevin Wolf
` (2 subsequent siblings)
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Pad VHDFooter as specified in the "Virtual Hard Disk Image Format
Specification" version 1.0[*]. Change footer buffers from
uint8_t[HEADER_SIZE] to VHDFooter. Their size remains the same.
The VHDFooter * variables pointing to a VHDFooter variable right next
to it are now silly. Eliminate them, and shorten the remaining
variables' names.
Most variables pointing to s->footer are now also silly. Eliminate
them, too.
[*] http://download.microsoft.com/download/f/f/e/ffef50a5-07dd-4cf8-aaa3-442c0673a029/Virtual%20Hard%20Disk%20Format%20Spec_10_18_06.doc
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-8-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 77 +++++++++++++++++++++++++----------------------------
1 file changed, 37 insertions(+), 40 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 6cb656ac82..f3ea92dcb0 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -95,8 +95,11 @@ typedef struct vhd_footer {
QemuUUID uuid;
uint8_t in_saved_state;
+ uint8_t reserved[427];
} QEMU_PACKED VHDFooter;
+QEMU_BUILD_BUG_ON(sizeof(VHDFooter) != 512);
+
typedef struct vhd_dyndisk_header {
char magic[8]; /* "cxsparse" */
@@ -134,7 +137,7 @@ QEMU_BUILD_BUG_ON(sizeof(VHDDynDiskHeader) != 1024);
typedef struct BDRVVPCState {
CoMutex lock;
- uint8_t footer_buf[HEADER_SIZE];
+ VHDFooter footer;
uint64_t free_data_block_offset;
int max_table_entries;
uint32_t *pagetable;
@@ -250,13 +253,13 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, s->footer_buf, HEADER_SIZE);
+ ret = bdrv_pread(bs->file, 0, &s->footer, HEADER_SIZE);
if (ret < 0) {
error_setg(errp, "Unable to read VHD header");
goto fail;
}
- footer = (VHDFooter *) s->footer_buf;
+ footer = &s->footer;
if (strncmp(footer->creator, "conectix", 8)) {
int64_t offset = bdrv_getlength(bs->file->bs);
if (offset < 0) {
@@ -270,7 +273,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
}
/* If a fixed disk, the footer is found only at the end of the file */
- ret = bdrv_pread(bs->file, offset-HEADER_SIZE, s->footer_buf,
+ ret = bdrv_pread(bs->file, offset - HEADER_SIZE, footer,
HEADER_SIZE);
if (ret < 0) {
goto fail;
@@ -285,7 +288,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
checksum = be32_to_cpu(footer->checksum);
footer->checksum = 0;
- if (vpc_checksum(s->footer_buf, HEADER_SIZE) != checksum) {
+ if (vpc_checksum(footer, HEADER_SIZE) != checksum) {
error_setg(errp, "Incorrect header checksum");
ret = -EINVAL;
goto fail;
@@ -535,7 +538,7 @@ static int rewrite_footer(BlockDriverState *bs)
BDRVVPCState *s = bs->opaque;
int64_t offset = s->free_data_block_offset;
- ret = bdrv_pwrite_sync(bs->file, offset, s->footer_buf, HEADER_SIZE);
+ ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, HEADER_SIZE);
if (ret < 0)
return ret;
@@ -598,9 +601,8 @@ fail:
static int vpc_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
BDRVVPCState *s = (BDRVVPCState *)bs->opaque;
- VHDFooter *footer = (VHDFooter *) s->footer_buf;
- if (be32_to_cpu(footer->type) != VHD_FIXED) {
+ if (be32_to_cpu(s->footer.type) != VHD_FIXED) {
bdi->cluster_size = s->block_size;
}
@@ -616,10 +618,9 @@ vpc_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
int64_t image_offset;
int64_t n_bytes;
int64_t bytes_done = 0;
- VHDFooter *footer = (VHDFooter *) s->footer_buf;
QEMUIOVector local_qiov;
- if (be32_to_cpu(footer->type) == VHD_FIXED) {
+ if (be32_to_cpu(s->footer.type) == VHD_FIXED) {
return bdrv_co_preadv(bs->file, offset, bytes, qiov, 0);
}
@@ -667,10 +668,9 @@ vpc_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
int64_t n_bytes;
int64_t bytes_done = 0;
int ret = 0;
- VHDFooter *footer = (VHDFooter *) s->footer_buf;
QEMUIOVector local_qiov;
- if (be32_to_cpu(footer->type) == VHD_FIXED) {
+ if (be32_to_cpu(s->footer.type) == VHD_FIXED) {
return bdrv_co_pwritev(bs->file, offset, bytes, qiov, 0);
}
@@ -724,13 +724,12 @@ static int coroutine_fn vpc_co_block_status(BlockDriverState *bs,
BlockDriverState **file)
{
BDRVVPCState *s = bs->opaque;
- VHDFooter *footer = (VHDFooter*) s->footer_buf;
int64_t image_offset;
bool allocated;
int ret;
int64_t n;
- if (be32_to_cpu(footer->type) == VHD_FIXED) {
+ if (be32_to_cpu(s->footer.type) == VHD_FIXED) {
*pnum = bytes;
*map = offset;
*file = bs->file->bs;
@@ -973,8 +972,7 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
BlockBackend *blk = NULL;
BlockDriverState *bs = NULL;
- uint8_t footer_buf[HEADER_SIZE];
- VHDFooter *footer = (VHDFooter *)footer_buf;
+ VHDFooter footer;
uint16_t cyls = 0;
uint8_t heads = 0;
uint8_t secs_per_cyl = 0;
@@ -1037,48 +1035,48 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
}
/* Prepare the Hard Disk Footer */
- memset(footer_buf, 0, HEADER_SIZE);
+ memset(&footer, 0, HEADER_SIZE);
- memcpy(footer->creator, "conectix", 8);
+ memcpy(footer.creator, "conectix", 8);
if (vpc_opts->force_size) {
- memcpy(footer->creator_app, "qem2", 4);
+ memcpy(footer.creator_app, "qem2", 4);
} else {
- memcpy(footer->creator_app, "qemu", 4);
+ memcpy(footer.creator_app, "qemu", 4);
}
- memcpy(footer->creator_os, "Wi2k", 4);
+ memcpy(footer.creator_os, "Wi2k", 4);
- footer->features = cpu_to_be32(0x02);
- footer->version = cpu_to_be32(0x00010000);
+ footer.features = cpu_to_be32(0x02);
+ footer.version = cpu_to_be32(0x00010000);
if (disk_type == VHD_DYNAMIC) {
- footer->data_offset = cpu_to_be64(HEADER_SIZE);
+ footer.data_offset = cpu_to_be64(HEADER_SIZE);
} else {
- footer->data_offset = cpu_to_be64(0xFFFFFFFFFFFFFFFFULL);
+ footer.data_offset = cpu_to_be64(0xFFFFFFFFFFFFFFFFULL);
}
- footer->timestamp = cpu_to_be32(time(NULL) - VHD_TIMESTAMP_BASE);
+ footer.timestamp = cpu_to_be32(time(NULL) - VHD_TIMESTAMP_BASE);
/* Version of Virtual PC 2007 */
- footer->major = cpu_to_be16(0x0005);
- footer->minor = cpu_to_be16(0x0003);
- footer->orig_size = cpu_to_be64(total_size);
- footer->current_size = cpu_to_be64(total_size);
- footer->cyls = cpu_to_be16(cyls);
- footer->heads = heads;
- footer->secs_per_cyl = secs_per_cyl;
+ footer.major = cpu_to_be16(0x0005);
+ footer.minor = cpu_to_be16(0x0003);
+ footer.orig_size = cpu_to_be64(total_size);
+ footer.current_size = cpu_to_be64(total_size);
+ footer.cyls = cpu_to_be16(cyls);
+ footer.heads = heads;
+ footer.secs_per_cyl = secs_per_cyl;
- footer->type = cpu_to_be32(disk_type);
+ footer.type = cpu_to_be32(disk_type);
qemu_uuid_generate(&uuid);
- footer->uuid = uuid;
+ footer.uuid = uuid;
- footer->checksum = cpu_to_be32(vpc_checksum(footer_buf, HEADER_SIZE));
+ footer.checksum = cpu_to_be32(vpc_checksum(&footer, HEADER_SIZE));
if (disk_type == VHD_DYNAMIC) {
- ret = create_dynamic_disk(blk, footer_buf, total_sectors);
+ ret = create_dynamic_disk(blk, (uint8_t *)&footer, total_sectors);
if (ret < 0) {
error_setg(errp, "Unable to create or write VHD header");
}
} else {
- ret = create_fixed_disk(blk, footer_buf, total_size, errp);
+ ret = create_fixed_disk(blk, (uint8_t *)&footer, total_size, errp);
}
out:
@@ -1172,9 +1170,8 @@ fail:
static int vpc_has_zero_init(BlockDriverState *bs)
{
BDRVVPCState *s = bs->opaque;
- VHDFooter *footer = (VHDFooter *) s->footer_buf;
- if (be32_to_cpu(footer->type) == VHD_FIXED) {
+ if (be32_to_cpu(s->footer.type) == VHD_FIXED) {
return bdrv_has_zero_init(bs->file->bs);
} else {
return 1;
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 16/17] block/vpc: Pass footer buffers as VHDFooter * instead of uint8_t *
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (14 preceding siblings ...)
2020-12-18 12:10 ` [PULL 15/17] block/vpc: Pad VHDFooter, replace uint8_t[] buffers Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-18 12:10 ` [PULL 17/17] block/vpc: Use sizeof() instead of HEADER_SIZE for footer size Kevin Wolf
2020-12-31 23:26 ` [PULL 00/17] Block layer patches Peter Maydell
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-9-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index f3ea92dcb0..aac13788df 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -819,7 +819,7 @@ static int calculate_geometry(int64_t total_sectors, uint16_t *cyls,
return 0;
}
-static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
+static int create_dynamic_disk(BlockBackend *blk, VHDFooter *footer,
int64_t total_sectors)
{
VHDDynDiskHeader dyndisk_header;
@@ -833,13 +833,13 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
block_size = 0x200000;
num_bat_entries = DIV_ROUND_UP(total_sectors, block_size / 512);
- ret = blk_pwrite(blk, offset, buf, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, offset, footer, HEADER_SIZE, 0);
if (ret < 0) {
goto fail;
}
offset = 1536 + ((num_bat_entries * 4 + 511) & ~511);
- ret = blk_pwrite(blk, offset, buf, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, offset, footer, HEADER_SIZE, 0);
if (ret < 0) {
goto fail;
}
@@ -887,7 +887,7 @@ static int create_dynamic_disk(BlockBackend *blk, uint8_t *buf,
return ret;
}
-static int create_fixed_disk(BlockBackend *blk, uint8_t *buf,
+static int create_fixed_disk(BlockBackend *blk, VHDFooter *footer,
int64_t total_size, Error **errp)
{
int ret;
@@ -900,7 +900,7 @@ static int create_fixed_disk(BlockBackend *blk, uint8_t *buf,
return ret;
}
- ret = blk_pwrite(blk, total_size - HEADER_SIZE, buf, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, total_size - HEADER_SIZE, footer, HEADER_SIZE, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Unable to write VHD header");
return ret;
@@ -1071,12 +1071,12 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
footer.checksum = cpu_to_be32(vpc_checksum(&footer, HEADER_SIZE));
if (disk_type == VHD_DYNAMIC) {
- ret = create_dynamic_disk(blk, (uint8_t *)&footer, total_sectors);
+ ret = create_dynamic_disk(blk, &footer, total_sectors);
if (ret < 0) {
error_setg(errp, "Unable to create or write VHD header");
}
} else {
- ret = create_fixed_disk(blk, (uint8_t *)&footer, total_size, errp);
+ ret = create_fixed_disk(blk, &footer, total_size, errp);
}
out:
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* [PULL 17/17] block/vpc: Use sizeof() instead of HEADER_SIZE for footer size
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (15 preceding siblings ...)
2020-12-18 12:10 ` [PULL 16/17] block/vpc: Pass footer buffers as VHDFooter * instead of uint8_t * Kevin Wolf
@ 2020-12-18 12:10 ` Kevin Wolf
2020-12-31 23:26 ` [PULL 00/17] Block layer patches Peter Maydell
17 siblings, 0 replies; 19+ messages in thread
From: Kevin Wolf @ 2020-12-18 12:10 UTC (permalink / raw)
To: qemu-block; +Cc: kwolf, peter.maydell, qemu-devel
From: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201217162003.1102738-10-armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/vpc.c | 29 ++++++++++++++---------------
1 file changed, 14 insertions(+), 15 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index aac13788df..17a705b482 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -39,8 +39,6 @@
/**************************************************************/
-#define HEADER_SIZE 512
-
//#define CACHE
enum vhd_type {
@@ -253,7 +251,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
- ret = bdrv_pread(bs->file, 0, &s->footer, HEADER_SIZE);
+ ret = bdrv_pread(bs->file, 0, &s->footer, sizeof(s->footer));
if (ret < 0) {
error_setg(errp, "Unable to read VHD header");
goto fail;
@@ -266,15 +264,15 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
ret = offset;
error_setg(errp, "Invalid file size");
goto fail;
- } else if (offset < HEADER_SIZE) {
+ } else if (offset < sizeof(*footer)) {
ret = -EINVAL;
error_setg(errp, "File too small for a VHD header");
goto fail;
}
/* If a fixed disk, the footer is found only at the end of the file */
- ret = bdrv_pread(bs->file, offset - HEADER_SIZE, footer,
- HEADER_SIZE);
+ ret = bdrv_pread(bs->file, offset - sizeof(*footer),
+ footer, sizeof(*footer));
if (ret < 0) {
goto fail;
}
@@ -288,7 +286,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
checksum = be32_to_cpu(footer->checksum);
footer->checksum = 0;
- if (vpc_checksum(footer, HEADER_SIZE) != checksum) {
+ if (vpc_checksum(footer, sizeof(*footer)) != checksum) {
error_setg(errp, "Incorrect header checksum");
ret = -EINVAL;
goto fail;
@@ -538,7 +536,7 @@ static int rewrite_footer(BlockDriverState *bs)
BDRVVPCState *s = bs->opaque;
int64_t offset = s->free_data_block_offset;
- ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, HEADER_SIZE);
+ ret = bdrv_pwrite_sync(bs->file, offset, &s->footer, sizeof(s->footer));
if (ret < 0)
return ret;
@@ -833,13 +831,13 @@ static int create_dynamic_disk(BlockBackend *blk, VHDFooter *footer,
block_size = 0x200000;
num_bat_entries = DIV_ROUND_UP(total_sectors, block_size / 512);
- ret = blk_pwrite(blk, offset, footer, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, offset, footer, sizeof(*footer), 0);
if (ret < 0) {
goto fail;
}
offset = 1536 + ((num_bat_entries * 4 + 511) & ~511);
- ret = blk_pwrite(blk, offset, footer, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, offset, footer, sizeof(*footer), 0);
if (ret < 0) {
goto fail;
}
@@ -893,14 +891,15 @@ static int create_fixed_disk(BlockBackend *blk, VHDFooter *footer,
int ret;
/* Add footer to total size */
- total_size += HEADER_SIZE;
+ total_size += sizeof(*footer);
ret = blk_truncate(blk, total_size, false, PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
return ret;
}
- ret = blk_pwrite(blk, total_size - HEADER_SIZE, footer, HEADER_SIZE, 0);
+ ret = blk_pwrite(blk, total_size - sizeof(*footer),
+ footer, sizeof(*footer), 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Unable to write VHD header");
return ret;
@@ -1035,7 +1034,7 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
}
/* Prepare the Hard Disk Footer */
- memset(&footer, 0, HEADER_SIZE);
+ memset(&footer, 0, sizeof(footer));
memcpy(footer.creator, "conectix", 8);
if (vpc_opts->force_size) {
@@ -1048,7 +1047,7 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
footer.features = cpu_to_be32(0x02);
footer.version = cpu_to_be32(0x00010000);
if (disk_type == VHD_DYNAMIC) {
- footer.data_offset = cpu_to_be64(HEADER_SIZE);
+ footer.data_offset = cpu_to_be64(sizeof(footer));
} else {
footer.data_offset = cpu_to_be64(0xFFFFFFFFFFFFFFFFULL);
}
@@ -1068,7 +1067,7 @@ static int coroutine_fn vpc_co_create(BlockdevCreateOptions *opts,
qemu_uuid_generate(&uuid);
footer.uuid = uuid;
- footer.checksum = cpu_to_be32(vpc_checksum(&footer, HEADER_SIZE));
+ footer.checksum = cpu_to_be32(vpc_checksum(&footer, sizeof(footer)));
if (disk_type == VHD_DYNAMIC) {
ret = create_dynamic_disk(blk, &footer, total_sectors);
--
2.29.2
^ permalink raw reply related [flat|nested] 19+ messages in thread
* Re: [PULL 00/17] Block layer patches
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
` (16 preceding siblings ...)
2020-12-18 12:10 ` [PULL 17/17] block/vpc: Use sizeof() instead of HEADER_SIZE for footer size Kevin Wolf
@ 2020-12-31 23:26 ` Peter Maydell
17 siblings, 0 replies; 19+ messages in thread
From: Peter Maydell @ 2020-12-31 23:26 UTC (permalink / raw)
To: Kevin Wolf; +Cc: QEMU Developers, Qemu-block
On Fri, 18 Dec 2020 at 12:10, Kevin Wolf <kwolf@redhat.com> wrote:
>
> The following changes since commit 75ee62ac606bfc9eb59310b9446df3434bf6e8c2:
>
> Merge remote-tracking branch 'remotes/ehabkost-gl/tags/x86-next-pull-request' into staging (2020-12-17 18:53:36 +0000)
>
> are available in the Git repository at:
>
> git://repo.or.cz/qemu/kevin.git tags/for-upstream
>
> for you to fetch changes up to be7c5ddd0d80e2d6cf8e3ef12c049851d28d9c26:
>
> block/vpc: Use sizeof() instead of HEADER_SIZE for footer size (2020-12-18 12:43:30 +0100)
>
> ----------------------------------------------------------------
> Block layer patches:
>
> - Add qemu-storage-daemon documentation
> - hw/block/nand: Decommission the NAND museum
> - vpc: Clean up some buffer abuse
> - nfs: fix int overflow in nfs_client_open_qdict
> - Several iotests fixes
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/6.0
for any user-visible changes.
-- PMM
^ permalink raw reply [flat|nested] 19+ messages in thread
end of thread, other threads:[~2020-12-31 23:27 UTC | newest]
Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-18 12:10 [PULL 00/17] Block layer patches Kevin Wolf
2020-12-18 12:10 ` [PULL 01/17] iotests/210: Fix reference output Kevin Wolf
2020-12-18 12:10 ` [PULL 02/17] hw/block/nand: Decommission the NAND museum Kevin Wolf
2020-12-18 12:10 ` [PULL 03/17] block/nfs: fix int overflow in nfs_client_open_qdict Kevin Wolf
2020-12-18 12:10 ` [PULL 04/17] docs: generate qemu-storage-daemon-qmp-ref(7) man page Kevin Wolf
2020-12-18 12:10 ` [PULL 05/17] docs: add qemu-storage-daemon(1) " Kevin Wolf
2020-12-18 12:10 ` [PULL 06/17] MAINTAINERS: add Kevin Wolf as storage daemon maintainer Kevin Wolf
2020-12-18 12:10 ` [PULL 07/17] iotests: make _filter_qom_path more strict Kevin Wolf
2020-12-18 12:10 ` [PULL 08/17] iotests:172: use _filter_qom_path Kevin Wolf
2020-12-18 12:10 ` [PULL 09/17] block/vpc: Make vpc_open() read the full dynamic header Kevin Wolf
2020-12-18 12:10 ` [PULL 10/17] block/vpc: Don't abuse the footer buffer as BAT sector buffer Kevin Wolf
2020-12-18 12:10 ` [PULL 11/17] block/vpc: Don't abuse the footer buffer for dynamic header Kevin Wolf
2020-12-18 12:10 ` [PULL 12/17] block/vpc: Make vpc_checksum() take void * Kevin Wolf
2020-12-18 12:10 ` [PULL 13/17] block/vpc: Pad VHDDynDiskHeader, replace uint8_t[] buffers Kevin Wolf
2020-12-18 12:10 ` [PULL 14/17] block/vpc: Use sizeof() instead of 1024 for dynamic header size Kevin Wolf
2020-12-18 12:10 ` [PULL 15/17] block/vpc: Pad VHDFooter, replace uint8_t[] buffers Kevin Wolf
2020-12-18 12:10 ` [PULL 16/17] block/vpc: Pass footer buffers as VHDFooter * instead of uint8_t * Kevin Wolf
2020-12-18 12:10 ` [PULL 17/17] block/vpc: Use sizeof() instead of HEADER_SIZE for footer size Kevin Wolf
2020-12-31 23:26 ` [PULL 00/17] Block layer patches Peter Maydell
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