When a curl transfer is finished, that does not mean that CURL lets go
of all the sockets it used for it. We therefore must not free a
CURLSocket object before CURL has invoked curl_sock_cb() to tell us to
remove it. Otherwise, we may get a use-after-free, as described in this
bug report: https://bugs.launchpad.net/qemu/+bug/1916501
(Reproducer from that report:
$ qemu-img convert -f qcow2 -O raw \
https://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img \
out.img
)
(Alternatively, it might seem logical to force-drop all sockets that
have been used for a state when the respective transfer is done, kind of
like it is done now, but including unsetting the AIO handlers.
Unfortunately, doing so makes the driver just hang instead of crashing,
which seems to evidence that CURL still uses those sockets.)
Make the CURLSocket object independent of "its" CURLState by putting all
sockets into a hash table belonging to the BDRVCURLState instead of a
list that belongs to a CURLState. Do not touch any sockets in
curl_clean_state().
Testing, it seems like all sockets are indeed gone by the time the curl
BDS is closed, so it seems like there really was no point in freeing any
socket just because a transfer is done. libcurl does invoke
curl_sock_cb() with CURL_POLL_REMOVE for every socket it has.
Buglink: https://bugs.launchpad.net/qemu/+bug/1916501
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210309130541.37540-3-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
A socket does not really belong to any specific state. We do not need
to store a pointer to "its" state in it, a pointer to the common
BDRVCURLState is sufficient.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210309130541.37540-2-mreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The image streaming block job restricts shared permissions of the nodes
it accesses. This can obviously fail when other users already got these
permissions. &error_abort is therefore wrong and can crash. Handle these
errors gracefully and just fail starting the block job.
Reported-by: Nini Gu <ngu@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210309173451.45152-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
bdrv_close_all() asserts that no jobs are running any more, so we need
to cancel all jobs first to avoid failing the assertion.
Fixes: b55a3c8860
Reported-by: Nini Gu <ngu@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210309121814.31078-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
QemuOpts is usually created merging the QemuOptsList of format
and protocol. So, when the format calls bdr_create_file(), the 'opts'
parameter contains a QemuOptsList with a combination of format and
protocol default values.
The format properly removes its options before calling
bdr_create_file(), but the default values remain in 'opts->list'.
So if the protocol has options with the same name (e.g. rbd has
'cluster_size' as qcow2), it will see the default values of the format,
since for overlapping options, the format wins.
To avoid this issue, lets convert QemuOpts to QDict, in this way we take
only the set options, and then convert it back to QemuOpts, using the
'create_opts' of the protocol. So the new QemuOpts, will contain only the
protocol defaults.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20210308161232.248833-1-sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* fixes for Coverity CID 1450756, 1450757 and 1450758 (me)
* fix for a bug in zone management receive (me)
* metadata and end-to-end data protection support (me & Gollu Appalanaidu)
* verify support (Gollu Appalanaidu)
* multiple lba formats and format nvm support (Minwoo Im)
and a couple of misc refactorings from me.
v2:
- remove an unintended submodule update. Argh.
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Merge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging
emulated nvme updates and fixes
* fixes for Coverity CID 1450756, 1450757 and 1450758 (me)
* fix for a bug in zone management receive (me)
* metadata and end-to-end data protection support (me & Gollu Appalanaidu)
* verify support (Gollu Appalanaidu)
* multiple lba formats and format nvm support (Minwoo Im)
and a couple of misc refactorings from me.
v2:
- remove an unintended submodule update. Argh.
# gpg: Signature made Thu 18 Mar 2021 11:53:48 GMT
# gpg: using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [unknown]
# gpg: aka "Klaus Jensen <k.jensen@samsung.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: DDCA 4D9C 9EF9 31CC 3468 4272 63D5 6FC5 E55D A838
# Subkey fingerprint: 5228 33AA 75E2 DCE6 A247 66C0 4DE1 AF31 6D4F 0DE9
* remotes/nvme/tags/nvme-next-pull-request:
hw/block/nvme: add support for the format nvm command
hw/block/nvme: pull lba format initialization
hw/block/nvme: prefer runtime helpers instead of device parameters
hw/block/nvme: support multiple lba formats
hw/block/nvme: add non-mdts command size limit for verify
hw/block/nvme: add verify command
hw/block/nvme: end-to-end data protection
hw/block/nvme: add metadata support
hw/block/nvme: fix zone management receive reporting too many zones
hw/block/nvme: assert namespaces array indices
hw/block/nvme: fix potential overflow
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Small collection of Acceptance and Python tests/improvements.
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Merge remote-tracking branch 'remotes/cleber-gitlab/tags/python-next-pull-request' into staging
Acceptance and Python Test Improvements
Small collection of Acceptance and Python tests/improvements.
# gpg: Signature made Wed 17 Mar 2021 03:22:47 GMT
# gpg: using RSA key 7ABB96EB8B46B94D5E0FE9BB657E8D33A5F209F3
# gpg: Good signature from "Cleber Rosa <crosa@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 7ABB 96EB 8B46 B94D 5E0F E9BB 657E 8D33 A5F2 09F3
* remotes/cleber-gitlab/tags/python-next-pull-request:
tests/acceptance: linux-related tests fix
tests: Add functional test for out-of-process device emulation
avocado_qemu: add exec_command function
tests/migration: fix unix socket batch migration
tests/acceptance: Print expected message on wait_for_console_pattern
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Format NVM admin command can make a namespace or namespaces to be
with different LBA size and metadata size with protection information
types.
This patch introduces Format NVM command with LBA format, Metadata, and
Protection Information for the device. The secure erase operation things
and support for formatting zoned namespaces are yet to be added.
The parameter checks inside of this patch has been referred from
Keith's old branch.
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
[anaidu.gollu: rebased on e2e]
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
[k.jensen: rebased for reworked aio tracking]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Pull lba format initialization code into separate function in
preparation for Format NVM support.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
In preparation for Format NVM support, use runtime helpers instead of
the constant device parameters when getting lba size information etc.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
This patch introduces multiple LBA formats supported with the typical
logical block sizes of 512 bytes and 4096 bytes as well as metadata
sizes of 0, 8, 16 and 64 bytes. The format will be chosed based on the
lbads and ms parameters of the nvme-ns device.
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
[k.jensen: resurrected and rebased]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Verify is not subject to MDTS, so a single Verify command may result in
excessive amounts of allocated memory. Impose a limit on the data size
by adding support for TP 4040 ("Non-MDTS Command Size Limits").
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Add support for namespaces formatted with protection information. The
type of end-to-end data protection (i.e. Type 1, Type 2 or Type 3) is
selected with the `pi` nvme-ns device parameter. If the number of
metadata bytes is larger than 8, the `pil` nvme-ns device parameter may
be used to control the location of the 8-byte DIF tuple. The default
`pil` value of '0', causes the DIF tuple to be transferred as the last
8 bytes of the metadata. Set to 1 to store this in the first eight bytes
instead.
Co-authored-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Add support for metadata in the form of extended logical blocks as well
as a separate buffer of data. The new `ms` nvme-ns device parameter
specifies the size of metadata per logical block in bytes. The `mset`
nvme-ns device parameter controls whether metadata is transfered as part
of an extended lba (set to '1') or in a separate buffer (set to '0',
the default).
Regardsless of the scheme chosen with `mset`, metadata is stored at the
end of the namespace backing block device. This requires the user
provided PRP/SGLs to be walked and "split" into data and metadata
scatter/gather lists if the extended logical block scheme is used, but
has the advantage of not breaking the deallocated blocks support.
Co-authored-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
nvme_zone_mgmt_recv uses nvme_ns_nlbas() to get the number of LBAs in
the namespace and then calculates the number of zones to report by
incrementing slba with ZSZE until exceeding the number of LBAs as
returned by nvme_ns_nlbas().
This is bad because the namespace might be of such as size that some
LBAs are valid, but are not part of any zone, causing zone management
receive to report one additional (but non-existing) zone.
Fix this with a conventional loop on i < ns->num_zones instead.
Fixes: a479335bfa ("hw/block/nvme: Support Zoned Namespace Command Set")
Cc: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Coverity complains about a possible memory corruption in the
nvme_ns_attach and _detach functions. While we should not (famous last
words) be able to reach this function without nsid having previously
been validated, this is still an open door for future misuse.
Make Coverity and maintainers happy by asserting that the index into the
array is valid. Also, while not detected by Coverity (yet), add an
assert in nvme_subsys_ns and nvme_subsys_register_ns as well since a
similar issue is exists there.
Fixes: 037953b5b2 ("hw/block/nvme: support namespace detach")
Fixes: CID 1450757
Fixes: CID 1450758
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
page_size is a uint32_t, and zasl is a uint8_t, so the expression
`page_size << zasl` is done using 32-bit arithmetic and might overflow.
Since we then compare this against a 64 bit data_size value, Coverity
complains that we might overflow unintentionally. An MDTS/ZASL value in
excess of 4GiB is probably impractical, but it is not entirely
unrealistic, so add a cast such that we handle that case properly.
Fixes: 578d914b26 ("hw/block/nvme: align zoned.zasl with mdts")
Fixes: CID 1450756
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
* fix guest-get-vcpus reporting after vcpu unplug
* coding style fix-ups
* report a reason for disabled commands
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Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2021-03-16-tag' into staging
qemu-ga patch queue for soft-freeze
* fix guest-get-vcpus reporting after vcpu unplug
* coding style fix-ups
* report a reason for disabled commands
# gpg: Signature made Wed 17 Mar 2021 03:12:41 GMT
# gpg: using RSA key CEACC9E15534EBABB82D3FA03353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>" [full]
# gpg: aka "Michael Roth <mdroth@utexas.edu>" [full]
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>" [full]
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D 3FA0 3353 C9CE F108 B584
* remotes/mdroth/tags/qga-pull-2021-03-16-tag:
qga: return a more explicit error on why a command is disabled
qga: Switch and case should be at the same indent
qga: Open brace '{' following struct go on the same
qga: Delete redundant spaces
qga: Add spaces around operator
qga: Correct loop count in qmp_guest_get_vcpus()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rather than having a device specific debug implementation in
pflash_cfi01.c and pflash_cfi02.c, use the standard tracing facility.
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210216142721.1985543-2-david.edmondson@oracle.com>
[PMD: Rebased, fixed pflash_write_block_erase trace event format]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
PFlashCFI01.ro is a bool, declare it as such.
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210216142721.1985543-3-david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Use the 'mode_read_array' event when we set the device in such
mode, and use the 'reset' event in DeviceReset handler.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210310170528.1184868-10-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210310170528.1184868-9-philmd@redhat.com>
There is multiple places resetting the internal state machine.
Factor the code out in a new pflash_reset_state_machine() method.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210310170528.1184868-8-philmd@redhat.com>
The same pattern is used when setting the flash in READ_ARRAY mode:
- Set the state machine command to READ_ARRAY
- Reset the write_cycle counter
- Reset the memory region in ROMD
Refactor the current code by extracting this pattern.
It is used three times:
- When the timer expires and not in bypass mode
- On a read access (on invalid command).
- When the device is initialized. Here the ROMD mode is hidden
by the memory_region_init_rom_device() call.
pflash_register_memory(rom_mode=true) already sets the ROM device
in "read array" mode (from I/O device to ROM one). Explicit that
by renaming the function as pflash_mode_read_array(), adding
a trace event and resetting wcycle.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210310170528.1184868-7-philmd@redhat.com>
There is only one call to pflash_register_memory() with
rom_mode == false. As we want to modify pflash_register_memory()
in the next patch, open-code this trivial function in place for
the 'rom_mode == false' case.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20210310170528.1184868-6-philmd@redhat.com>
There is only one call to pflash_setup_mappings(). Convert 'rom_mode'
to boolean and set it to true directly within pflash_setup_mappings().
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20210310170528.1184868-5-philmd@redhat.com>
Fill the CFI table in out of DeviceRealize() in a new function:
pflash_cfi02_fill_cfi_table().
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210310170528.1184868-4-philmd@redhat.com>
Fill the CFI table in out of DeviceRealize() in a new function:
pflash_cfi01_fill_cfi_table().
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210310170528.1184868-3-philmd@redhat.com>
We are going to move this code, fix its style first.
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210310170528.1184868-2-philmd@redhat.com>
The 'host_device' and 'host_cdrom' drivers must be used instead.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The same data is available in the 'BlockDeviceInfo' struct.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The same information is available via the 'recording' and 'busy' fields.
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This has been hardcoded to "false" since 2.10.0, since secrets required
to unlock block devices are now always provided up front instead of using
interactive prompts.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'scsi-hd' and 'scsi-cd' devices provide suitable alternatives.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The 'ide-hd' and 'ide-cd' devices provide suitable alternatives.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This only makes sense conceptually when used with listener chardevs.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The newer 'query-cpus-fast' command avoids side effects on the guest
execution. Note that some of the field names are different in the
'query-cpus-fast' command.
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The generic 'migrate_set_parameters' command handle all types of param.
Only the QMP commands were documented in the deprecations page, but the
rationale for deprecating applies equally to HMP, and the replacements
exist. Furthermore the HMP commands are just shims to the QMP commands,
so removing the latter breaks the former unless they get re-implemented.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The code comment suggests removing QAPIEvent_(str|lookup) symbols too,
however, these are both auto-generated as standard for any enum in
QAPI. As such it they'll exist whether we use them or not.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is only semantically useful for QMP.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The VNC ACL concept has been replaced by the pluggable "authz" framework
which does not use monitor commands.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
