Commit Graph

78186 Commits

Author SHA1 Message Date
Sai Pavan Boddu
6fe7661d3d net: cadence_gem: Fix debug statements
Enabling debug breaks the build, Fix them and make debug statements
always compilable. Fix few statements to use sized integer casting.

Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:51 +08:00
Philippe Mathieu-Daudé
97d7fb5a79 hw/net/tulip: Log descriptor overflows
Log with GUEST_ERROR what the guest is doing wrong.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:51 +08:00
Philippe Mathieu-Daudé
171ce2e279 hw/net/tulip: Fix 'Descriptor Error' definition
Bit #14 is "DE" for 'Descriptor Error':

  When set, indicates a frame truncation caused by a frame
  that does not fit within the current descriptor buffers,
  and that the 21143 does not own the next descriptor.

  [Table 4-1. RDES0 Bit Fields Description]

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:51 +08:00
Helge Deller
d9b6964039 Fix tulip breakage
The tulip network driver in a qemu-system-hppa emulation is broken in
the sense that bigger network packages aren't received any longer and
thus even running e.g. "apt update" inside the VM fails.

The breakage was introduced by commit 8ffb7265af ("check frame size and
r/w data length") which added checks to prevent accesses outside of the
rx/tx buffers.

But the new checks were implemented wrong. The variable rx_frame_len
counts backwards, from rx_frame_size down to zero, and the variable len
is never bigger than rx_frame_len, so accesses just can't happen and the
checks are unnecessary.
On the contrary the checks now prevented bigger packages to be moved
into the rx buffers.

This patch reverts the wrong checks and were sucessfully tested with a
qemu-system-hppa emulation.

Fixes: 8ffb7265af ("check frame size and r/w data length")
Buglink: https://bugs.launchpad.net/bugs/1874539
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:51 +08:00
Yuri Benditovich
dd3d85e891 virtio-net: align RSC fields with updated virtio-net header
Removal of duplicated RSC definitions. Changing names of the
fields to ones defined in the Linux header.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:51 +08:00
Yuri Benditovich
e41b711485 virtio-net: add migration support for RSS and hash report
Save and restore RSS/hash report configuration.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Yuri Benditovich
ff4e6d545d vmstate.h: provide VMSTATE_VARRAY_UINT16_ALLOC macro
Similar to VMSTATE_VARRAY_UINT32_ALLOC, but the size is
16-bit field.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Yuri Benditovich
e22f0603fb virtio-net: reference implementation of hash report
Suggest VIRTIO_NET_F_HASH_REPORT if specified in device
parameters.
If the VIRTIO_NET_F_HASH_REPORT is set,
the device extends configuration space. If the feature
is negotiated, the packet layout is extended to
accomodate the hash information. In this case deliver
packet's hash value and report type in virtio header
extension.
Use for configuration the same procedure as already
used for RSS. We add two fields in rss_data that
controls what the device does with the calculated hash
if rss_data.enabled is set. If field 'populate' is set
the hash is set in the packet, if field 'redirect' is
set the hash is used to decide the queue to place the
packet to.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Yuri Benditovich
fbbdbddec0 tap: allow extended virtio header with hash info
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Yuri Benditovich
4474e37a5b virtio-net: implement RX RSS processing
If VIRTIO_NET_F_RSS negotiated and RSS is enabled, process
incoming packets, calculate packet's hash and place the
packet into respective RX virtqueue.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Yuri Benditovich
590790297c virtio-net: implement RSS configuration command
Optionally report RSS feature.
Handle RSS configuration command and keep RSS parameters
in virtio-net device context.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-06-18 21:05:50 +08:00
Peter Maydell
3b268766ec Block layer patches:
- enhance handling of size-related BlockConf properties
 - nvme: small fixes, refactoring and cleanups
 - virtio-blk: On restart, process queued requests in the proper context
 - icount: make dma reads deterministic
 - iotests: Some fixes for rarely run cases
 - .gitignore: Ignore storage-daemon files
 - Minor code cleanups
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- enhance handling of size-related BlockConf properties
- nvme: small fixes, refactoring and cleanups
- virtio-blk: On restart, process queued requests in the proper context
- icount: make dma reads deterministic
- iotests: Some fixes for rarely run cases
- .gitignore: Ignore storage-daemon files
- Minor code cleanups

# gpg: Signature made Wed 17 Jun 2020 15:47:19 BST
# 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: (43 commits)
  iotests: Add copyright line in qcow2.py
  iotests/{190,291}: compat=0.10 is unsupported
  iotests/229: data_file is unsupported
  iotests/292: data_file is unsupported
  iotests/041: Skip test_small_target for qed
  iotests.py: Add skip_for_formats() decorator
  block: lift blocksize property limit to 2 MiB
  qdev-properties: add getter for size32 and blocksize
  block: make BlockConf size props 32bit and accept size suffixes
  qdev-properties: make blocksize accept size suffixes
  qdev-properties: add size32 property type
  qdev-properties: blocksize: use same limits in code and description
  block: consolidate blocksize properties consistency checks
  virtio-blk: store opt_io_size with correct size
  .gitignore: Ignore storage-daemon files
  hw/block/nvme: verify msix_init_exclusive_bar() return value
  hw/block/nvme: add msix_qsize parameter
  hw/block/nvme: Verify msix_vector_use() returned value
  hw/block/nvme: factor out controller identify setup
  hw/block/nvme: do cmb/pmr init as part of pci init
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 12:15:33 +01:00
Peter Maydell
3f429a3400 microvm: memory config tweaks
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Merge remote-tracking branch 'remotes/kraxel/tags/microvm-20200617-pull-request' into staging

microvm: memory config tweaks

# gpg: Signature made Wed 17 Jun 2020 13:28:44 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/microvm-20200617-pull-request:
  microvm: move virtio base to 0xfeb00000
  x86: move max-ram-below-4g to pc
  microvm: drop max-ram-below-4g support
  microvm: use 3G split unconditionally

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 11:23:15 +01:00
Christian Borntraeger
458e056257 docs/s390x: fix vfio-ap device_del description
device_del requires an id and not a sysfsfile.

Fixes: bac03ec72f ("s390x/vfio-ap: document hot plug/unplug of vfio-ap device")
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200617160604.5593-1-borntraeger@de.ibm.com>
[CH: add missing '$']
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:14:06 +02:00
Farhan Ali
f030532f2a vfio-ccw: Add support for the CRW region and IRQ
The crw region can be used to obtain information about
Channel Report Words (CRW) from vfio-ccw driver.

Currently only channel-path related CRWs are passed to
QEMU from vfio-ccw driver.

Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-7-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:54 +02:00
Eric Farman
f6dde1b012 s390x/css: Refactor the css_queue_crw() routine
We have a use case (vfio-ccw) where a CRW is already built and
ready to use.  Rather than teasing out the components just to
reassemble it later, let's rework this code so we can queue a
fully-qualified CRW directly.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-6-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:54 +02:00
Eric Farman
690e29b911 vfio-ccw: Refactor ccw irq handler
Make it easier to add new ones in the future.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-5-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:54 +02:00
Farhan Ali
46ea3841ed vfio-ccw: Add support for the schib region
The schib region can be used to obtain the latest SCHIB from the host
passthrough subchannel. Since the guest SCHIB is virtualized,
we currently only update the path related information so that the
guest is aware of any path related changes when it issues the
'stsch' instruction.

Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-4-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:54 +02:00
Eric Farman
2a3b9cbaa7 vfio-ccw: Refactor cleanup of regions
While we're at it, add a g_free() for the async_cmd_region that
is the last thing currently created.  g_free() knows how to handle
NULL pointers, so this makes it easier to remember what cleanups
need to be performed when new regions are added.

Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505125757.98209-3-farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:54 +02:00
Cornelia Huck
f76b348ec7 Linux headers: update
Update against Linux 5.8-rc1.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-18 12:13:36 +02:00
Richard Henderson
bac8d222a1 configure: Add -Wno-psabi
On aarch64, gcc 9.3 is generating

qemu/exec.c: In function ‘address_space_translate_iommu’:
qemu/exec.c:431:28: note: parameter passing for argument of type \
  ‘MemTxAttrs’ {aka ‘struct MemTxAttrs’} changed in GCC 9.1

and many other repetitions.  This structure, and the functions
amongst which it is passed, are not part of a QEMU public API.
Therefore we do not care how the compiler passes the argument,
so long as the compiler is self-consistent.

The only portion of QEMU which does have a public api, and so
must have a stable abi, is "qemu/plugin.h".  We test this by
forcing -Wpsabi in tests/plugin/Makefile.

Buglink: https://bugs.launchpad.net/qemu/+bug/1881552
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 10:26:02 +01:00
Richard Henderson
aabab96797 configure: Disable -Wtautological-type-limit-compare
Clang 10 enables this by default with -Wtype-limit.

All of the instances flagged by this Werror so far have been
cases in which we really do want the compiler to optimize away
the test completely.  Disabling the warning will avoid having
to add ifdefs to work around this.

Cc: Eric Blake <eblake@redhat.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1878628
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 10:26:02 +01:00
Richard Henderson
00849b9224 configure: Clean up warning flag lists
Use a helper function to tidy the assembly of gcc_flags.
Separate flags that disable warnings from those that enable,
and sort the disable warnings to the end.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-4-richard.henderson@linaro.org
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 10:26:02 +01:00
Wei Wang
9227140217 migration: fix xbzrle encoding rate calculation
It's reported an error of implicit conversion from "unsigned long" to
"double" when compiling with Clang 10. Simply make the encoding rate 0
when the encoded_size is 0.

Fixes: e460a4b1a4
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reported-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 10:26:02 +01:00
Philippe Mathieu-Daudé
4066288694 fpu/softfloat: Silence 'bitwise negation of boolean expression' warning
When building with clang version 10.0.0-4ubuntu1, we get:

    CC      lm32-softmmu/fpu/softfloat.o
  fpu/softfloat.c:3365:13: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
      absZ &= ~ ( ( ( roundBits ^ 0x40 ) == 0 ) & roundNearestEven );
              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  fpu/softfloat.c:3423:18: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
          absZ0 &= ~ ( ( (uint64_t) ( absZ1<<1 ) == 0 ) & roundNearestEven );
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  ...

  fpu/softfloat.c:4273:18: error: bitwise negation of a boolean expression; did you mean logical negation? [-Werror,-Wbool-operation]
          zSig1 &= ~ ( ( zSig2 + zSig2 == 0 ) & roundNearestEven );
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix by rewriting the fishy bitwise AND of two bools as an int.

Suggested-by: Eric Blake <eblake@redhat.com>
Buglink: https://bugs.launchpad.net/bugs/1881004
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200617201309.1640952-2-richard.henderson@linaro.org
Message-Id: <20200528155420.9802-1-philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-18 10:26:02 +01:00
Laurent Vivier
7e89a1401a migration: fix multifd_send_pages() next channel
multifd_send_pages() loops around the available channels,
the next channel to use between two calls to multifd_send_pages() is stored
inside a local static variable, next_channel.

It works well, except if the number of channels decreases between two calls
to multifd_send_pages(). In this case, the loop can try to access the
data of a channel that doesn't exist anymore.

The problem can be triggered if we start a migration with a given number of
channels and then we cancel the migration to restart it with a lower number.
This ends generally with an error like:
qemu-system-ppc64: .../util/qemu-thread-posix.c:77: qemu_mutex_lock_impl: Assertion `mutex->initialized' failed.

This patch fixes the error by capping next_channel with the current number
of channels before using it.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20200617113154.593233-1-lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
6bcd361a52 docs/xbzrle: update 'cache miss rate' and 'encoding rate' to docs
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200603080904.997083-9-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
afb5d01cb6 monitor/hmp-cmds: improvements for the 'info migrate'
When running:

(qemu) info migrate
globals:
store-global-state: on
only-migratable: off
...
xbzrle transferred: 640892 kbytes
xbzrle pages: 16645936 pages
xbzrle cache miss: 1525426
xbzrle cache miss rate: 0.09
xbzrle encoding rate: 91.42
xbzrle overflow: 40896
...
compression pages: 377710 pages
compression busy: 0
compression busy rate: 0.00
compressed size: 463169457
compression rate: 3.33

Add units for 'xbzrle cache miss' and 'compressed size',
make it easier to read.

Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200603080904.997083-8-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
ac9c95b13f monitor/hmp-cmds: add 'goto end' to reduce duplicate code.
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200603080904.997083-7-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
0705ecc4ad monitor/hmp-cmds: delete redundant Error check before invoke hmp_handle_error()
hmp_handle_error() does Error check internally.

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20200603080904.997083-6-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
fe025508c0 monitor/hmp-cmds: don't silently output when running 'migrate_set_downtime' fails
Although 'migrate_set_downtime' has been deprecated and replaced
with 'migrate_set_parameter downtime_limit', it has not been
completely eliminated, possibly due to compatibility with older
versions. I think as long as this old parameter is running, we
should report appropriate message when something goes wrong, not
be silent.

before:
(qemu) migrate_set_downtime -1
(qemu)

after:
(qemu) migrate_set_downtime -1
Error: Parameter 'downtime_limit' expects an integer in the range of 0 to 2000 seconds

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200603080904.997083-5-maozhongyi@cmss.chinamobile.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
39337f1211 monitor/hmp-cmds: add units for migrate_parameters
When running:
(qemu) info migrate_parameters
announce-initial: 50 ms
announce-max: 550 ms
announce-step: 100 ms
compress-wait-thread: on
...
max-bandwidth: 33554432 bytes/second
downtime-limit: 300 milliseconds
x-checkpoint-delay: 20000
...
xbzrle-cache-size: 67108864

add units for the parameters 'x-checkpoint-delay' and
'xbzrle-cache-size', it's easier to read, also move
milliseconds to ms to keep the same style.

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200603080904.997083-4-maozhongyi@cmss.chinamobile.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
71cfce73f4 tests/migration: fix unreachable path in stress test
If stressone() or stress() exits it's because of a failure
because the test runs forever otherwise, so change stressone
and stress type to void to make the exit_failure() as the exit
function of main().

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200603080904.997083-3-maozhongyi@cmss.chinamobile.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Mao Zhongyi
f663492f40 tests/migration: mem leak fix
‘data’ has the possibility of memory leaks, so use the
glib macros g_autofree recommended by CODING_STYLE.rst
to automatically release the memory that returned from
g_malloc().

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200603080904.997083-2-maozhongyi@cmss.chinamobile.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
David Hildenbrand
2d9e3dd9be hmp: Make json format optional for qom-set
Commit 7d2ef6dcc1 ("hmp: Simplify qom-set") switched to the json
parser, making it possible to specify complex types. However, with this
change it is no longer possible to specify proper sizes (e.g., 2G, 128M),
turning the interface harder to use for properties that consume sizes.

Let's switch back to the previous handling and allow to specify passing
json via the "-j" parameter.

Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200610075153.33892-1-david@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:39 +01:00
Pan Nengyuan
246da7db3c qom-hmp-cmds: fix a memleak in hmp_qom_get
'obj' forgot to free at the end of hmp_qom_get(). Fix that.

The leak stack:
Direct leak of 40 byte(s) in 1 object(s) allocated from:
    #0 0x7f4e3a779ae8 in __interceptor_malloc (/lib64/libasan.so.5+0xefae8)
    #1 0x7f4e398f91d5 in g_malloc (/lib64/libglib-2.0.so.0+0x531d5)
    #2 0x55c9fd9a3999 in qstring_from_substr /build/qemu/src/qobject/qstring.c:45
    #3 0x55c9fd894bd3 in qobject_output_type_str /build/qemu/src/qapi/qobject-output-visitor.c:175
    #4 0x55c9fd894bd3 in qobject_output_type_str /build/qemu/src/qapi/qobject-output-visitor.c:168
    #5 0x55c9fd88b34d in visit_type_str /build/qemu/src/qapi/qapi-visit-core.c:308
    #6 0x55c9fd59aa6b in property_get_str /build/qemu/src/qom/object.c:2064
    #7 0x55c9fd5adb8a in object_property_get_qobject /build/qemu/src/qom/qom-qobject.c:38
    #8 0x55c9fd4a029d in hmp_qom_get /build/qemu/src/qom/qom-hmp-cmds.c:66

Fixes: 89cf4fe34f
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200603070338.7922-1-pannengyuan@huawei.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Tested-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:38 +01:00
Max Reitz
63659fe74e virtiofsd: Whitelist fchmod
lo_setattr() invokes fchmod() in a rarely used code path, so it should
be whitelisted or virtiofsd will crash with EBADSYS.

Said code path can be triggered for example as follows:

On the host, in the shared directory, create a file with the sticky bit
set and a security.capability xattr:
(1) # touch foo
(2) # chmod u+s foo
(3) # setcap '' foo

Then in the guest let some process truncate that file after it has
dropped all of its capabilities (at least CAP_FSETID):

int main(int argc, char *argv[])
{
    capng_setpid(getpid());
    capng_clear(CAPNG_SELECT_BOTH);
    capng_updatev(CAPNG_ADD, CAPNG_PERMITTED | CAPNG_EFFECTIVE, 0);
    capng_apply(CAPNG_SELECT_BOTH);

    ftruncate(open(argv[1], O_RDWR), 0);
}

This will cause the guest kernel to drop the sticky bit (i.e. perform a
mode change) as part of the truncate (where FATTR_FH is set), and that
will cause virtiofsd to invoke fchmod() instead of fchmodat().

(A similar configuration exists further below with futimens() vs.
utimensat(), but the former is not a syscall but just a wrapper for the
latter, so no further whitelisting is required.)

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1842667
Reported-by: Qian Cai <caiqian@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200608093111.14942-1-mreitz@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-17 17:48:38 +01:00
Peter Maydell
26bf4a2921 usb-host: add hostdevice property, workaround libusb bug
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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20200617-pull-request' into staging

usb-host: add hostdevice property, workaround libusb bug

# gpg: Signature made Wed 17 Jun 2020 11:47:37 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20200617-pull-request:
  usb-host: workaround libusb bug
  usb: add hostdevice property to usb-host

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-17 16:24:24 +01:00
Eric Blake
3419ec713f iotests: Add copyright line in qcow2.py
The file qcow2.py was originally contributed in 2012 by Kevin Wolf,
but was not given traditional boilerplate headers at the time.  The
missing license was just rectified (commit 16306a7b39) using the
project-default GPLv2+, but as Vladimir is not at Red Hat, he did not
add a Copyright line.  All earlier contributions have come from CC'd
authors, where all but Stefan used a Red Hat address at the time of
the contribution, and that copyright carries over to the split to
qcow2_format.py (d5262c7124).

CC: Kevin Wolf <kwolf@redhat.com>
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
CC: Philippe Mathieu-Daudé <philmd@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200609205944.3549240-1-eblake@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Max Reitz
2e3becf9d7 iotests/{190,291}: compat=0.10 is unsupported
Fixes: 5d72c68b49
Fixes: cf2d1203dc
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200617104822.27525-6-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Max Reitz
73b2b7b5ca iotests/229: data_file is unsupported
Fixes: d89ac3cf30
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200617104822.27525-5-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Max Reitz
e6de31bcad iotests/292: data_file is unsupported
Fixes: e4d7019e1a
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200617104822.27525-4-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Max Reitz
c7070942c7 iotests/041: Skip test_small_target for qed
qed does not support shrinking images, so the test_small_target method
should be skipped to keep 041 passing.

Fixes: 16cea4ee1c
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200617104822.27525-3-mreitz@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Max Reitz
ff3caf5af0 iotests.py: Add skip_for_formats() decorator
Sometimes, we want to skip some test methods for certain formats.  This
decorator allows that.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200617104822.27525-2-mreitz@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 16:21:21 +02:00
Roman Kagan
6510ba1c0e block: lift blocksize property limit to 2 MiB
Logical and physical block sizes in QEMU are limited to 32 KiB.

This appears unnecessarily tight, and we've seen bigger block sizes
handy at times.

Lift the limitation up to 2 MiB which appears to be good enough for
everybody, and matches the qcow2 cluster size limit.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-9-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00
Roman Kagan
031ffd9a61 qdev-properties: add getter for size32 and blocksize
Add getter for size32, and use it for blocksize, too.

In its human-readable branch, it reports approximate size in
human-readable units next to the exact byte value, like the getter for
64bit size does.

Adjust the expected test output accordingly.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-8-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00
Roman Kagan
4f44bbc5bb block: make BlockConf size props 32bit and accept size suffixes
Convert all size-related properties in BlockConf to 32bit.  This will
accommodate bigger block sizes (in a followup patch).  This also allows
to make them all accept size suffixes, either via DEFINE_PROP_BLOCKSIZE
or via DEFINE_PROP_SIZE32.

Also, since min_io_size is exposed to the guest by scsi and virtio-blk
devices as an uint16_t in units of logical blocks, introduce an
additional check in blkconf_blocksizes to prevent its silent truncation.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20200528225516.1676602-7-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00
Roman Kagan
645b55d1c2 qdev-properties: make blocksize accept size suffixes
It appears convenient to be able to specify physical_block_size and
logical_block_size using common size suffixes.

Teach the blocksize property setter to interpret them.  Also express the
upper and lower limits in the respective units.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-6-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00
Roman Kagan
914e74cda9 qdev-properties: add size32 property type
Introduce size32 property type which handles size suffixes (k, m, g)
just like size property, but is uint32_t rather than uint64_t.  It's
going to be useful for properties that are byte sizes but are inherently
32bit, like BlkConf.opt_io_size or .discard_granularity (they are
switched to this new property type in a followup commit).

The getter for size32 is left out for a separate patch as its benefit is
less obvious, and it affects test output; for now the regular uint32
getter is used.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20200528225516.1676602-5-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00
Roman Kagan
a345c55236 qdev-properties: blocksize: use same limits in code and description
Make it easier (more visible) to maintain the limits on the blocksize
properties in sync with the respective description, by using macros both
in the code and in the description.

Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200528225516.1676602-4-rvkagan@yandex-team.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-17 14:53:40 +02:00