Creating a device with a number of queues that isn't supported by the
backend is pointless, the device won't work properly and the error
messages are rather confusing.
Just fail to create the device if num-queues is higher than what the
backend supports.
Since the relationship between num-queues and the number of virtqueues
depends on the specific device, this is an additional value that needs
to be initialised by the device. For convenience, allow leaving it 0 if
the check should be skipped. This makes sense for vhost-user-net where
separate vhost devices are used for the queues and custom initialisation
code is needed to perform the check.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935031
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210429171316.162022-7-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
VIRTIO_F_RING_PACKED and VIRTIO_F_IOMMU_PLATFORM need to be supported by
the vhost device, otherwise advertising it to the guest doesn't result
in a working configuration. They are currently not supported by the
vhost-user-blk export in QEMU.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935020
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210429171316.162022-5-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Now that vhost_user_blk_connect() is not called from an event handler
any more, but directly from vhost_user_blk_device_realize(), we can
actually make use of Error again instead of calling error_report() in
the inner function and setting a more generic and therefore less useful
error message in realize() itself.
With Error, the callers are responsible for adding context if necessary
(such as the "-device" option the error refers to). Additional prefixes
are redundant and better omitted.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210429171316.162022-4-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This is a partial revert of commits 77542d4314 and bc79c87bcd.
Usually, an error during initialisation means that the configuration was
wrong. Reconnecting won't make the error go away, but just turn the
error condition into an endless loop. Avoid this and return errors
again.
Additionally, calling vhost_user_blk_disconnect() from the chardev event
handler could result in use-after-free because none of the
initialisation code expects that the device could just go away in the
middle. So removing the call fixes crashes in several places.
For example, using a num-queues setting that is incompatible with the
backend would result in a crash like this (dereferencing dev->opaque,
which is already NULL):
#0 0x0000555555d0a4bd in vhost_user_read_cb (source=0x5555568f4690, condition=(G_IO_IN | G_IO_HUP), opaque=0x7fffffffcbf0) at ../hw/virtio/vhost-user.c:313
#1 0x0000555555d950d3 in qio_channel_fd_source_dispatch (source=0x555557c3f750, callback=0x555555d0a478 <vhost_user_read_cb>, user_data=0x7fffffffcbf0) at ../io/channel-watch.c:84
#2 0x00007ffff7b32a9f in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#3 0x00007ffff7b84a98 in g_main_context_iterate.constprop () at /lib64/libglib-2.0.so.0
#4 0x00007ffff7b32163 in g_main_loop_run () at /lib64/libglib-2.0.so.0
#5 0x0000555555d0a724 in vhost_user_read (dev=0x555557bc62f8, msg=0x7fffffffcc50) at ../hw/virtio/vhost-user.c:402
#6 0x0000555555d0ee6b in vhost_user_get_config (dev=0x555557bc62f8, config=0x555557bc62ac "", config_len=60) at ../hw/virtio/vhost-user.c:2133
#7 0x0000555555d56d46 in vhost_dev_get_config (hdev=0x555557bc62f8, config=0x555557bc62ac "", config_len=60) at ../hw/virtio/vhost.c:1566
#8 0x0000555555cdd150 in vhost_user_blk_device_realize (dev=0x555557bc60b0, errp=0x7fffffffcf90) at ../hw/block/vhost-user-blk.c:510
#9 0x0000555555d08f6d in virtio_device_realize (dev=0x555557bc60b0, errp=0x7fffffffcff0) at ../hw/virtio/virtio.c:3660
Note that this removes the ability to reconnect during initialisation
(but not during operation) when there is no permanent error, but the
backend restarts, as the implementation was buggy. This feature can be
added back in a follow-up series after changing error paths to
distinguish cases where retrying could help from cases with permanent
errors.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210429171316.162022-3-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
We have to set errp before jumping to virtio_err, otherwise the caller
(virtio_device_realize()) will take this as success and crash when it
later tries to access things that we've already freed in the error path.
Fixes: 77542d4314
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210429171316.162022-2-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
With the introduction of the nvme-subsystem device we are really
cluttering up the hw/block directory.
As suggested by Philippe previously, move the nvme emulation to hw/nvme.
Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Validation of the max_active and max_open zoned parameters are
independent of any other state, so move them to the early
nvme_ns_check_constraints parameter checks.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
It is not an error to report more active/open zones supported than the
number of zones in the namespace.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
The NvmeCtrl num_namespaces member is just an indirection for the
NVME_MAX_NAMESPACES constant.
Remove the indirection.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Streamline namespace array indexing such that both the subsystem and
controller namespaces arrays are 1-indexed.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
There is no need to look up the lba size and metadata size in the LBA
Format structure everytime we want to use it. And we use it a lot.
Cache the values in the NvmeNamespace and update them if the namespace
is formatted.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
The inline nvme_ns_status() helper only has a single call site. Remove
it from the header file and inline it for real.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
In preparation for moving the nvme device into its own subtree, merge
the header files into one.
Also add missing copyright notice and add list of authors with
substantial contributions.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Get rid of the (reserved) double underscore use.
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Get rid of the (reserved) double underscore use.
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Get rid of the (reserved) double underscore use. Rename the "generic"
zone open function to nvme_zrm_open_flags() and add a generic `int
flags` argument instead which allows more flags to be easily added in
the future. There is at least one TP under standardization that would
add an additional flag.
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
While QEMU coding style prefers lowercase hexadecimals in constants, the
NVMe subsystem uses the format from the NVMe specifications in comments,
i.e. 'h' suffix instead of '0x' prefix.
Fix this up across the code base.
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
[k.jensen: updated message; added conversion in a couple of missing comments]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
nvme_map_addr_pmr function arguments not aligned, fix that.
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Currently IO Command Set Profile feature is supported, but the feature
support flag not set. Further, this feature is changable. Fix that.
Additionally, remove filling default value of the CQE result with zero,
since it will fall back to the default case anyway.
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
[k.jensen: fix up commit message]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Currently in compare command metadata aio read blk_aio_preadv return
value ignored. Consider it and complete the block accounting.
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Fixes: 0a384f923f ("hw/block/nvme: add compare command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Currently pci_nvme_err_invalid_lba_range trace is called individually at
each nvme_check_bounds() call site.
Move the trace event to nvme_check_bounds() and remove the redundant
events.
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[k.jensen: commit message fixup]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,virtio: bugfixes, improvements
Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Fri 14 May 2021 15:27:13 BST
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
Fix build with 64 bits time_t
vhost-vdpa: Make vhost_vdpa_get_device_id() static
hw/virtio: enable ioeventfd configuring for mmio
hw/smbios: support for type 41 (onboard devices extended information)
checkpatch: Fix use of uninitialized value
virtio-scsi: Configure all host notifiers in a single MR transaction
virtio-scsi: Set host notifiers and callbacks separately
virtio-blk: Configure all host notifiers in a single MR transaction
virtio-blk: Fix rollback path in virtio_blk_data_plane_start()
pc-dimm: remove unnecessary get_vmstate_memory_region() method
amd_iommu: fix wrong MMIO operations
virtio-net: Constify VirtIOFeature feature_sizes[]
virtio-blk: Constify VirtIOFeature feature_sizes[]
hw/virtio: Pass virtio_feature_get_config_size() a const argument
x86: acpi: use offset instead of pointer when using build_header()
amd_iommu: Fix pte_override_page_mask()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# hw/arm/virt.c
This allows the virtio-blk-pci device to batch the setup of all its
host notifiers. This significantly improves boot time of VMs with a
high number of vCPUs, e.g. from 3m26.186s down to 0m58.023s for a
pseries machine with 384 vCPUs.
Note that memory_region_transaction_commit() must be called before
virtio_bus_cleanup_host_notifier() because the latter might close
ioeventfds that the transaction still assumes to be around when it
commits.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20210407143501.244343-3-groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When dataplane multiqueue support was added in QEMU 2.7, the path
that would rollback guest notifiers assignment in case of error
simply got dropped.
Later on, when Error was added to blk_set_aio_context() in QEMU 4.1,
another error path was introduced, but it ommits to rollback both
host and guest notifiers.
It seems cleaner to fix the rollback path in one go. The patch is
simple enough that it can be adjusted if backported to a pre-4.1
QEMU.
Fixes: 51b04ac5c6 ("virtio-blk: dataplane multiqueue support")
Cc: stefanha@redhat.com
Fixes: 97896a4887 ("block: Add Error to blk_set_aio_context()")
Cc: kwolf@redhat.com
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210407143501.244343-2-groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When no mapping is requested, it is pointless to create
alias regions.
Only create them when multiple mappings are requested to
simplify the memory layout. The flatview is not changed.
For example using 'qemu-system-sh4 -M r2d -S -monitor stdio',
* before:
(qemu) info mtree
address-space: memory
0000000000000000-ffffffffffffffff (prio 0, i/o): system
0000000000000000-0000000000ffffff (prio 0, i/o): pflash
0000000000000000-0000000000ffffff (prio 0, romd): alias pflash-alias @r2d.flash 0000000000000000-0000000000ffffff
0000000004000000-000000000400003f (prio 0, i/o): r2d-fpga
000000000c000000-000000000fffffff (prio 0, ram): r2d.sdram
(qemu) info mtree -f
FlatView #0
AS "memory", root: system
AS "cpu-memory-0", root: system
Root memory region: system
0000000000000000-0000000000ffffff (prio 0, romd): r2d.flash
0000000004000000-000000000400003f (prio 0, i/o): r2d-fpga
000000000c000000-000000000fffffff (prio 0, ram): r2d.sdram
* after:
(qemu) info mtree
address-space: memory
0000000000000000-ffffffffffffffff (prio 0, i/o): system
0000000000000000-0000000000ffffff (prio 0, romd): r2d.flash
0000000004000000-000000000400003f (prio 0, i/o): r2d-fpga
000000000c000000-000000000fffffff (prio 0, ram): r2d.sdram
(qemu) info mtree -f
FlatView #0
AS "memory", root: system
AS "cpu-memory-0", root: system
Root memory region: system
0000000000000000-0000000000ffffff (prio 0, romd): r2d.flash
0000000004000000-000000000400003f (prio 0, i/o): r2d-fpga
000000000c000000-000000000fffffff (prio 0, ram): r2d.sdram
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210325120921.858993-3-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
The ROMD mode isn't related to mapping setup.
Ideally we'd set this mode when the state machine resets,
but for now simply move it to pflash_cfi02_realize() to
not introduce logical change.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210325120921.858993-2-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
... when a xen-block backend instance is created via xenstore.
Following 8d17adf34f ("block: remove support for using "file" driver
with block/char devices"), using the "file" blockdev driver for
everything doesn't work anymore, we need to use the "host_device"
driver when the disk image is a block device and "file" driver when it
is a regular file.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20210430163432.468894-1-anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.1-pull-request' into staging
Trivial patches pull request 20210503
# gpg: Signature made Mon 03 May 2021 09:34:56 BST
# gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg: issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C
* remotes/vivier2/tags/trivial-branch-for-6.1-pull-request: (23 commits)
hw/rx/rx-gdbsim: Do not accept invalid memory size
docs: More precisely describe memory-backend-*::id's user
scripts: fix generation update-binfmts templates
docs/system: Document the removal of "compat" property for POWER CPUs
mc146818rtc: put it into the 'misc' category
Do not include exec/address-spaces.h if it's not really necessary
Do not include cpu.h if it's not really necessary
Do not include hw/boards.h if it's not really necessary
Do not include sysemu/sysemu.h if it's not really necessary
hw: Do not include qemu/log.h if it is not necessary
hw: Do not include hw/irq.h if it is not necessary
hw: Do not include hw/sysbus.h if it is not necessary
hw: Remove superfluous includes of hw/hw.h
ui: Fix memory leak in qemu_xkeymap_mapping_table()
hw/usb: Constify VMStateDescription
hw/display/qxl: Constify VMStateDescription
hw/arm: Constify VMStateDescription
vmstate: Constify some VMStateDescriptions
Fix typo in CFI build documentation
hw/pcmcia: Do not register PCMCIA type if not required
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Fixes for the DMA space
* New model for ASPEED's Hash and Crypto Engine (Joel and Klaus)
* Acceptance tests (Joel)
* A fix for the XDMA model
* Some extra features for the SMC controller.
* Two new boards : rainier-bmc and quanta-q7l1-bmc (Patrick)
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Merge remote-tracking branch 'remotes/legoater/tags/pull-aspeed-20210503' into staging
Aspeed patches :
* Fixes for the DMA space
* New model for ASPEED's Hash and Crypto Engine (Joel and Klaus)
* Acceptance tests (Joel)
* A fix for the XDMA model
* Some extra features for the SMC controller.
* Two new boards : rainier-bmc and quanta-q7l1-bmc (Patrick)
# gpg: Signature made Mon 03 May 2021 06:23:36 BST
# gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# 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: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* remotes/legoater/tags/pull-aspeed-20210503:
aspeed: Add support for the quanta-q7l1-bmc board
hw/block: m25p80: Add support for mt25ql02g and mt25qu02g
aspeed: Add support for the rainier-bmc board
aspeed: Deprecate the swift-bmc machine
tests/qtest: Rename m25p80 test in aspeed_smc test
aspeed/smc: Add extra controls to request DMA
aspeed/smc: Add a 'features' attribute to the object class
hw/misc/aspeed_xdma: Add AST2600 support
tests/acceptance: Test ast2600 machine
tests/acceptance: Test ast2400 and ast2500 machines
tests/qtest: Add test for Aspeed HACE
aspeed: Integrate HACE
hw: Model ASPEED's Hash and Crypto Engine
hw/arm/aspeed: Do not sysbus-map mmio flash region directly, use alias
aspeed/i2c: Rename DMA address space
aspeed/i2c: Fix DMA address mask
aspeed/smc: Remove unused "sdram-base" property
aspeed/smc: Use the RAM memory region for DMAs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Stop including sysemu/sysemu.h in files that don't need it.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-2-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The Micron mt25ql02g is a 3V 2Gb serial NOR flash memory supporting
dual I/O and quad I/O, 4KB, 32KB, 64KB sector erase. It also supports
4B opcodes. The mt25qu02g operates at 1.8V.
https://4donline.ihs.com/images/VipMasterIC/IC/MICT/MICT-S-A0008500026/MICT-S-A0008511423-1.pdf?hkey=52A5661711E402568146F3353EA87419
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Francisco Iglesias <francisco.iglesias@xilinx.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
virtio_add_queue() aborts when queue_size > VIRTQUEUE_MAX_SIZE, so
vhost_user_blk_device_realize() should check this before calling it.
Simple reproducer:
qemu-system-x86_64 \
-chardev null,id=foo \
-device vhost-user-blk-pci,queue-size=4096,chardev=foo
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935014
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210413165654.50810-1-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Commit 1901b4967c changed the nvme device from using a bar exclusive
for MSI-x to sharing it on bar0.
Unfortunately, the msix_uninit_exclusive_bar() call remains in
nvme_exit() which causes havoc when the device is removed with, say,
device_del. Fix this.
Additionally, a subregion is added but it is not removed on exit which
causes a reference to linger and the drive to never be unlocked.
Fixes: 1901b4967c ("hw/block/nvme: move msix table and pba to BAR 0")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For most commands, when issuing an AIO, the BlockAIOCB is stored in the
NvmeRequest aiocb pointer when the AIO is issued. The main use of this
is cancelling AIOs when deleting submission queues (it is currently not
used for Abort).
However, some commands like Dataset Management Zone Management Send
(zone reset) may involve more than one AIO and here the AIOs are issued
without saving a reference to the BlockAIOCB. This is a problem since
nvme_del_sq() will attempt to cancel outstanding AIOs, potentially with
an invalid BlockAIOCB since the aiocb pointer is not NULL'ed when the
request structure is recycled.
Fix this by
1. making sure the aiocb pointer is NULL'ed when requests are recycled
2. only attempt to cancel the AIO if the aiocb is non-NULL
3. if any AIOs could not be cancelled, drain all aio as a last resort.
Fixes: dc04d25e2f ("hw/block/nvme: add support for the format nvm command")
Fixes: c94973288c ("hw/block/nvme: add broadcast nsid support flush command")
Fixes: e4e430b3d6 ("hw/block/nvme: add simple copy command")
Fixes: 5f5dc4c6a9 ("hw/block/nvme: zero out zones on reset")
Fixes: 2605257a26 ("hw/block/nvme: add the dataset management command")
Cc: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Cc: Minwoo Im <minwoo.im@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
nvme_compare() fails to store the aiocb from the blk_aio_preadv() call.
Fix this.
Fixes: 0a384f923f ("hw/block/nvme: add compare command")
Cc: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
nvme_map_prp needs to calculate the number of list entries based on the
offset value. For the subsequent PRP2 list, need to ensure the number of
entries is within the MAX number of PRP entries for a page.
Signed-off-by: Padmakar Kalghatgi <p.kalghatgi@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Setting the 'fallback' property corrupts the QOM instance state
(FDCtrlSysBus) because it accesses an incorrect offset (it uses
the offset of the FDCtrlISABus state).
Cc: qemu-stable@nongnu.org
Fixes: a73275dd6f ("fdc: Add fallback option")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210407133742.1680424-1-f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
nvme_subsys_ctrl() is used in contexts where the given controller
identifier is from an untrusted source. Like its friends nvme_ns() and
nvme_subsys_ns(), nvme_subsys_ctrl() should just return NULL if an
invalid identifier is given.
Fixes: 645ce1a70c ("hw/block/nvme: support namespace attachment command")
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
nvme_subsys_ns() is used in contexts where the namespace identifier is
taken from an untrusted source. Commit 3921756dee ("hw/block/nvme:
assert namespaces array indices") tried to guard against this by
introducing an assert on the namespace identifier.
This is wrong since it is perfectly valid to call the function with an
invalid namespace identifier and like nvme_ns(), nvme_subsys_ns() should
simply return NULL.
Fixes: 3921756dee ("hw/block/nvme: assert namespaces array indices")
Fixes: 94d8d6d167 ("hw/block/nvme: support allocated namespace type")
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
nvme_ns_attachment() does not verify the contents of the host-supplied
16 bit "Number of Identifiers" field in the command payload.
Make sure the value is capped at 2047 and fix the out-of-bounds read.
Fixes: 645ce1a70c ("hw/block/nvme: support namespace attachment command")
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Add missing license/copyright headers to the nvme-dif.{c,h} files.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Prior to this patch, if a private nvme-ns device (that is, a namespace
that is not linked to a subsystem) is wired up to an nvme-subsys linked
nvme controller device, the device fails to verify that the namespace id
is unique within the subsystem. NVM Express v1.4b, Section 6.1.6 ("NSID
and Namespace Usage") states that because the device supports Namespace
Management, "NSIDs *shall* be unique within the NVM subsystem".
Additionally, prior to this patch, private namespaces are not known to
the subsystem and the namespace is considered exclusive to the
controller with which it is initially wired up to. However, this is not
the definition of a private namespace; per Section 1.6.33 ("private
namespace"), a private namespace is just a namespace that does not
support multipath I/O or namespace sharing, which means "that it is only
able to be attached to one controller at a time".
Fix this by always allocating namespaces in the subsystem (if one is
linked to the controller), regardless of the shared/private status of
the namespace. Whether or not the namespace is shareable is controlled
by a new `shared` nvme-ns parameter.
Finally, this fix allows the nvme-ns `subsys` parameter to be removed,
since the `shared` parameter now serves the purpose of attaching the
namespace to all controllers in the subsystem upon device realization.
It is invalid to have an nvme-ns namespace device with a linked
subsystem without the parent nvme controller device also being linked to
one and since the nvme-ns devices will unconditionally be "attached" (in
QEMU terms that is) to an nvme controller device through an NvmeBus, the
nvme-ns namespace device can always get a reference to the subsystem of
the controller it is explicitly (using 'bus=' parameter) or implicitly
attaching to.
Fixes: e570768566 ("hw/block/nvme: support for shared namespace in subsystem")
Cc: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
The Non-MDTS DMSRL limit must be recomputed when namespaces are
detached.
Fixes: 645ce1a70c ("hw/block/nvme: support namespace attachment command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Remove the unused BlockConf from the controller structure and remove the
noop constraint checking.
Device works just fine with both legacy drive parameter namespace and
nvme-ns namespace definitions.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
The `nvme_nsid()` function returns '-1' (FFFFFFFFh) when the given
namespace is NULL. Since FFFFFFFFh is actually a valid namespace
identifier (the "broadcast" value), change this to be '0' since that
actually *is* the invalid value.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Add the missing nvme_adm_opc_str entry for the Namespace Attachment
command.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Protection Information can only be enabled if there is at least 8 bytes
of metadata.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
The check for `n->namespace.blkconf.blk` always fails because
this is in the initialization function.
Signed-off-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
The description was originally removed in commit 578d914b26
("hw/block/nvme: align zoned.zasl with mdts") together with the removal
of the zoned.append_size_limit parameter itself.
However, it was (most likely accidentally), re-added in commit
f7dcd31885 ("hw/block/nvme: add non-mdts command size limit for verify").
Remove the description again, since the parameter it describes,
zoned.append_size_limit, no longer exists.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Qemu crashes on shutdown if the chardev used by vhost-user-blk has been
finalized before the vhost-user-blk.
This happens with char-socket chardev operating in the listening mode (server).
The char-socket chardev emits "close" event at the end of finalizing when
its internal data is destroyed. This calls vhost-user-blk event handler
which in turn tries to manipulate with destroyed chardev by setting an empty
event handler for vhost-user-blk cleanup postponing.
This patch separates the shutdown case from the cleanup postponing removing
the need to set an event handler.
Signed-off-by: Denis Plotnikov <den-plotnikov@yandex-team.ru>
Message-Id: <20210325151217.262793-4-den-plotnikov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit 4bcad76f4c ("vhost-user-blk: delay vhost_user_blk_disconnect")
introduced postponing vhost_dev cleanup aiming to eliminate qemu aborts
because of connection problems with vhost-blk daemon.
However, it introdues a new problem. Now, any communication errors
during execution of vhost_dev_init() called by vhost_user_blk_device_realize()
lead to qemu abort on assert in vhost_dev_get_config().
This happens because vhost_user_blk_disconnect() is postponed but
it should have dropped s->connected flag by the time
vhost_user_blk_device_realize() performs a new connection opening.
On the connection opening, vhost_dev initialization in
vhost_user_blk_connect() relies on s->connection flag and
if it's not dropped, it skips vhost_dev initialization and returns
with success. Then, vhost_user_blk_device_realize()'s execution flow
goes to vhost_dev_get_config() where it's aborted on the assert.
To fix the problem this patch adds immediate cleanup on device
initialization(in vhost_user_blk_device_realize()) using different
event handlers for initialization and operation introduced in the
previous patch.
On initialization (in vhost_user_blk_device_realize()) we fully
control the initialization process. At that point, nobody can use the
device since it isn't initialized and we don't need to postpone any
cleanups, so we can do cleaup right away when there is a communication
problem with the vhost-blk daemon.
On operation we leave it as is, since the disconnect may happen when
the device is in use, so the device users may want to use vhost_dev's data
to do rollback before vhost_dev is re-initialized (e.g. in vhost_dev_set_log()).
Signed-off-by: Denis Plotnikov <den-plotnikov@yandex-team.ru>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210325151217.262793-3-den-plotnikov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
It is useful to use different connect/disconnect event handlers
on device initialization and operation as seen from the further
commit fixing a bug on device initialization.
This patch refactors the code to make use of them: we don't rely any
more on the VM state for choosing how to cleanup the device, instead
we explicitly use the proper event handler depending on whether
the device has been initialized.
Signed-off-by: Denis Plotnikov <den-plotnikov@yandex-team.ru>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210325151217.262793-2-den-plotnikov@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Max noticed that since blk_aio_pwrite_zeroes() may invoke the callback
before returning, the callbacks will never see *count == 0 and thus
never free the count variable or decrement num_formats causing a CQE to
never be posted.
Coverity (CID 1451082) also picked up on the fact that count would not
be free'ed if the namespace was of zero size.
Fix both of these issues by explicitly checking *count and finalize for
the given namespace if --(*count) is zero. Enqueing a CQE if there are
no AIOs outstanding after this case is already handled by nvme_format()
by inspecting *num_formats.
Reported-by: Max Reitz <mreitz@redhat.com>
Reported-by: Coverity (CID 1451082)
Fixes: dc04d25e2f ("hw/block/nvme: add support for the format nvm command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
If nvme_map_dptr() fails, nvme_dif_rw() will leak the bounce context.
Fix this by using the same error handling as everywhere else in the
function.
Reported-by: Coverity (CID 1451080)
Fixes: 146f720c55 ("hw/block/nvme: end-to-end data protection")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Whenever a Xen block device is detach via xenstore, the image
associated with it remained open by the backend QEMU and an error is
logged:
qemu-system-i386: failed to destroy drive: Node xvdz-qcow2 is in use
This happened since object_unparent() doesn't immediately frees the
object and thus keep a reference to the node we are trying to free.
The reference is hold by the "drive" property and the call
xen_block_drive_destroy() fails.
In order to fix that, we call drain_call_rcu() to run the callback
setup by bus_remove_child() via object_unparent().
Fixes: 2d24a64661 ("device-core: use RCU for list of children of a bus")
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Message-Id: <20210308143232.83388-1-anthony.perard@citrix.com>
Per SST25VF016B datasheet [1], SST flash requires a dummy byte after
the address bytes. Note only SPI mode is supported by SST flashes.
[1] http://ww1.microchip.com/downloads/en/devicedoc/s71271_04.pdf
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210306060152.7250-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Several QOM type names contain ',':
ARM,bitband-memory
etraxfs,pic
etraxfs,serial
etraxfs,timer
fsl,imx25
fsl,imx31
fsl,imx6
fsl,imx6ul
fsl,imx7
grlib,ahbpnp
grlib,apbpnp
grlib,apbuart
grlib,gptimer
grlib,irqmp
qemu,register
SUNW,bpp
SUNW,CS4231
SUNW,DBRI
SUNW,DBRI.prom
SUNW,fdtwo
SUNW,sx
SUNW,tcx
xilinx,zynq_slcr
xlnx,zynqmp
xlnx,zynqmp-pmu-soc
xlnx,zynq-xadc
These are all device types. They can't be plugged with -device /
device_add, except for xlnx,zynqmp-pmu-soc, and I doubt that one
actually works.
They *can* be used with -device / device_add to request help.
Usability is poor, though: you have to double the comma, like this:
$ qemu-system-x86_64 -device SUNW,,fdtwo,help
Trap for the unwary. The fact that this was broken in
device-introspect-test for more than six years until commit e27bd49876
fixed it demonstrates that "the unwary" includes seasoned developers.
One QOM type name contains ' ': "ICH9 SMB". Because having to
remember just one way to quote would be too easy.
Rename the "SUNW,FOO types to "sun-FOO". Summarily replace ',' and '
' by '-' in the other type names.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210304140229.575481-2-armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
The previous commit rendered the name fdctrl_connect_drives() somewhat
misleading. Get rid of it by inlining the (now pretty simple)
function into its only caller.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20210309161214.1402527-4-armbru@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Drop the crap deprecated in commit 4a27a638e7 "fdc: Deprecate
configuring floppies with -global isa-fdc" (v5.1.0).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20210309161214.1402527-3-armbru@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
- QAPIfy object-add and --object
- stream: Fail gracefully if permission is denied
- storage-daemon: Fix crash on quit when job is still running
- curl: Fix use after free
- char: Deprecate backend aliases, fix QMP query-chardev-backends
- Fix image creation option defaults that exist in both the format and
the protocol layer (e.g. 'cluster_size' in qcow2 and rbd; the qcow2
default was incorrectly applied to the rbd layer)
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches and object-add QAPIfication
- QAPIfy object-add and --object
- stream: Fail gracefully if permission is denied
- storage-daemon: Fix crash on quit when job is still running
- curl: Fix use after free
- char: Deprecate backend aliases, fix QMP query-chardev-backends
- Fix image creation option defaults that exist in both the format and
the protocol layer (e.g. 'cluster_size' in qcow2 and rbd; the qcow2
default was incorrectly applied to the rbd layer)
# gpg: Signature made Fri 19 Mar 2021 09:18:22 GMT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (42 commits)
vl: allow passing JSON to -object
qom: move user_creatable_add_opts logic to vl.c and QAPIfy it
tests: convert check-qom-proplist to keyval
qom: Support JSON in HMP object_add and tools --object
char: Simplify chardev_name_foreach()
char: Deprecate backend aliases 'tty' and 'parport'
char: Skip CLI aliases in query-chardev-backends
qom: Add user_creatable_parse_str()
hmp: QAPIfy object_add
qemu-img: Use user_creatable_process_cmdline() for --object
qom: Add user_creatable_add_from_str()
qemu-nbd: Use user_creatable_process_cmdline() for --object
qemu-io: Use user_creatable_process_cmdline() for --object
qom: Factor out user_creatable_process_cmdline()
qom: Remove user_creatable_add_dict()
qemu-storage-daemon: Implement --object with qmp_object_add()
qom: Make "object" QemuOptsList optional
qapi/qom: QAPIfy object-add
qapi/qom: Add ObjectOptions for x-remote-object
qapi/qom: Add ObjectOptions for input-*
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This converts object-add from 'gen': false to the ObjectOptions QAPI
type. As an immediate benefit, clients can now use QAPI schema
introspection for user creatable QOM objects.
It is also the first step towards making the QAPI schema the only
external interface for the creation of user creatable objects. Once all
other places (HMP and command lines of the system emulator and all
tools) go through QAPI, too, some object implementations can be
simplified because some checks (e.g. that mandatory options are set) are
already performed by QAPI, and in another step, QOM boilerplate code
could be generated from the schema.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
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>
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>
Report the configured granularity for discard operation to the
guest. If this is not set use the block size.
Since until now we have ignored the configured discard granularity
and always reported the block size, let's add
'report-discard-granularity' property and disable it for older
machine types to avoid migration issues.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210225001239.47046-1-akihiko.odaki@gmail.com>
The 'running' argument from VMChangeStateHandler does not require
other value than 0 / 1. Make it a plain boolean.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210111152020.1422021-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Support Identify command for Namespace attached controller list. This
command handler will traverse the controller instances in the given
subsystem to figure out whether the specified nsid is attached to the
controllers or not.
The 4096bytes Identify data will return with the first entry (16bits)
indicating the number of the controller id entries. So, the data can
hold up to 2047 entries for the controller ids.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
[k.jensen: rebased for dma refactor]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
If namespace inventory is changed due to some reasons (e.g., namespace
attachment/detachment), controller can send out event notifier to the
host to manage namespaces.
This patch sends out the AEN to the host after either attach or detach
namespaces from controllers. To support clear of the event from the
controller, this patch also implemented Get Log Page command for Changed
Namespace List log type. To return namespace id list through the
command, when namespace inventory is updated, id is added to the
per-controller list (changed_ns_list).
To indicate the support of this async event, this patch set
OAES(Optional Asynchronous Events Supported) in Identify Controller data
structure.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This patch supports Namespace Attachment command for the pre-defined
nvme-ns device nodes. Of course, attach/detach namespace should only be
supported in case 'subsys' is given. This is because if we detach a
namespace from a controller, somebody needs to manage the detached, but
allocated namespace in the NVMe subsystem.
As command effect for the namespace attachment command is registered,
the host will be notified that namespace inventory is changed so that
host will rescan the namespace inventory after this command. For
example, kernel driver manages this command effect via passthru IOCTL.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
[k.jensen: rebased for dma refactor]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This patch has no functional changes. This patch just refactored
nvme_select_ns_iocs() to iterate the attached namespaces of the
controlller and make it invoke __nvme_select_ns_iocs().
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
