Commit Graph

1571 Commits

Author SHA1 Message Date
Stefan Hajnoczi 27e08bab94 tracetool: work around ust <sys/sdt.h> include conflict
Both the dtrace and ust backends may include <sys/sdt.h> but LTTng
Userspace Tracer 2.11 and later requires SDT_USE_VARIADIC to be defined
before including the header file.

This is a classic problem with C header files included from different
parts of a program. If the same header is included twice within the same
compilation unit then the first inclusion determines the macro
environment.

Work around this by defining SDT_USE_VARIADIC in the dtrace backend too.
It doesn't hurt and fixes a missing STAP_PROBEV() compiler error when
the ust backend is enabled together with the dtrace backend.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20200625140757.237012-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-07-07 16:07:14 +01:00
Ahmed Karaman 5c362ccfde scripts/performance: Add topN_callgrind.py script
Python script that prints the top N most executed functions in QEMU
using callgrind.

Syntax:
topN_callgrind.py [-h] [-n] <number of displayed top functions>  -- \
                      <qemu executable> [<qemu executable options>] \
                      <target executable> [<target execurable options>]

[-h] - Print the script arguments help message.
[-n] - Specify the number of top functions to print.
     - If this flag is not specified, the tool defaults to 25.

Example of usage:
topN_callgrind.py -n 20 -- qemu-arm coulomb_double-arm

Example Output:
No.  Percentage Function Name         Source File
----  --------- ------------------    ------------------------------
   1    24.577% 0x00000000082db000    ???
   2    20.467% float64_mul           <qemu>/fpu/softfloat.c
   3    14.720% float64_sub           <qemu>/fpu/softfloat.c
   4    13.864% float64_add           <qemu>/fpu/softfloat.c
   5     4.876% helper_mulsd          <qemu>/target/i386/ops_sse.h
   6     3.767% helper_subsd          <qemu>/target/i386/ops_sse.h
   7     3.549% helper_addsd          <qemu>/target/i386/ops_sse.h
   8     2.185% helper_ucomisd        <qemu>/target/i386/ops_sse.h
   9     1.667% helper_lookup_tb_ptr  <qemu>/include/exec/tb-lookup.h
  10     1.662% f64_compare           <qemu>/fpu/softfloat.c
  11     1.509% helper_lookup_tb_ptr  <qemu>/accel/tcg/tcg-runtime.c
  12     0.635% helper_lookup_tb_ptr  <qemu>/include/exec/exec-all.h
  13     0.616% float64_div           <qemu>/fpu/softfloat.c
  14     0.502% helper_pand_xmm       <qemu>/target/i386/ops_sse.h
  15     0.502% float64_mul           <qemu>/include/fpu/softfloat.h
  16     0.476% helper_lookup_tb_ptr  <qemu>/target/i386/cpu.h
  17     0.437% float64_compare_quiet <qemu>/fpu/softfloat.c
  18     0.414% helper_pxor_xmm       <qemu>/target/i386/ops_sse.h
  19     0.353% round_to_int          <qemu>/fpu/softfloat.c
  20     0.347% helper_cc_compute_all <qemu>/target/i386/cc_helper.c

Signed-off-by: Ahmed Karaman <ahmedkhaledkaraman@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200626164546.22102-3-ahmedkhaledkaraman@gmail.com>
2020-06-27 20:07:59 +02:00
Ahmed Karaman c5a5839856 scripts/performance: Add topN_perf.py script
Syntax:
topN_perf.py [-h] [-n] <number of displayed top functions>  -- \
                 <qemu executable> [<qemu executable options>] \
                 <target executable> [<target execurable options>]

[-h] - Print the script arguments help message.
[-n] - Specify the number of top functions to print.
     - If this flag is not specified, the tool defaults to 25.

Example of usage:
topN_perf.py -n 20 -- qemu-arm coulomb_double-arm

Example Output:
 No.  Percentage  Name                       Invoked by
----  ----------  -------------------------  -------------------------
   1      16.25%  float64_mul                qemu-x86_64
   2      12.01%  float64_sub                qemu-x86_64
   3      11.99%  float64_add                qemu-x86_64
   4       5.69%  helper_mulsd               qemu-x86_64
   5       4.68%  helper_addsd               qemu-x86_64
   6       4.43%  helper_lookup_tb_ptr       qemu-x86_64
   7       4.28%  helper_subsd               qemu-x86_64
   8       2.71%  f64_compare                qemu-x86_64
   9       2.71%  helper_ucomisd             qemu-x86_64
  10       1.04%  helper_pand_xmm            qemu-x86_64
  11       0.71%  float64_div                qemu-x86_64
  12       0.63%  helper_pxor_xmm            qemu-x86_64
  13       0.50%  0x00007f7b7004ef95         [JIT] tid 491
  14       0.50%  0x00007f7b70044e83         [JIT] tid 491
  15       0.36%  helper_por_xmm             qemu-x86_64
  16       0.32%  helper_cc_compute_all      qemu-x86_64
  17       0.30%  0x00007f7b700433f0         [JIT] tid 491
  18       0.30%  float64_compare_quiet      qemu-x86_64
  19       0.27%  soft_f64_addsub            qemu-x86_64
  20       0.26%  round_to_int               qemu-x86_64

Signed-off-by: Ahmed Karaman <ahmedkhaledkaraman@gmail.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200626164546.22102-2-ahmedkhaledkaraman@gmail.com>
2020-06-27 20:07:09 +02:00
Peter Maydell 87fb952da8 Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Wed 24 Jun 2020 11:01:57 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  block/nvme: support nested aio_poll()
  block/nvme: keep BDRVNVMeState pointer in NVMeQueuePair
  block/nvme: clarify that free_req_queue is protected by q->lock
  block/nvme: switch to a NVMeRequest freelist
  block/nvme: don't access CQE after moving cq.head
  block/nvme: drop tautologous assertion
  block/nvme: poll queues without q->lock
  check-block: enable iotests with SafeStack
  configure: add flags to support SafeStack
  coroutine: add check for SafeStack in sigaltstack
  coroutine: support SafeStack in ucontext backend
  minikconf: explicitly set encoding to UTF-8

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 13:48:54 +01:00
Philippe Mathieu-Daudé f892b494fa scripts/tracetool: Update maintainer email address
There is an effort in progress to generate a QEMU Python
package. As I'm not sure this old email is still valid,
update it to not produce package with broken maintainer
email.

Patch created mechanically by running:

 $ sed -i 's,\(__email__ *= "\)stefanha@linux.vnet.ibm.com",\1stefanha@redhat.com",' \
         $(git grep -l 'email.*stefanha@linux.vnet.ibm.com')

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20200511082816.696-1-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-06-24 11:21:00 +01:00
Stefan Hajnoczi ddd633e525 minikconf: explicitly set encoding to UTF-8
QEMU currently only has ASCII Kconfig files but Linux actually uses
UTF-8. Explicitly specify the encoding and that we're doing text file
I/O.

It's unclear whether or not QEMU will ever need Unicode in its Kconfig
files. If we start using the help text then it will become an issue
sooner or later. Make this change now for consistency with Linux
Kconfig.

Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200521153616.307100-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-06-23 15:46:05 +01:00
Alexander Bulekov 211635b3a2 fuzz: add oss-fuzz build-script
It is neater to keep this in the QEMU repo, since any change that
requires an update to the oss-fuzz build configuration, can make the
necessary changes in the same series.

Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20200612055145.12101-1-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-06-15 18:26:46 +02:00
Peter Maydell 7d3660e798 * Miscellaneous fixes and feature enablement (many)
* SEV refactoring (David)
 * Hyper-V initial support (Jon)
 * i386 TCG fixes (x87 and SSE, Joseph)
 * vmport cleanup and improvements (Philippe, Liran)
 * Use-after-free with vCPU hot-unplug (Nengyuan)
 * run-coverity-scan improvements (myself)
 * Record/replay fixes (Pavel)
 * -machine kernel_irqchip=split improvements for INTx (Peter)
 * Code cleanups (Philippe)
 * Crash and security fixes (PJP)
 * HVF cleanups (Roman)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Miscellaneous fixes and feature enablement (many)
* SEV refactoring (David)
* Hyper-V initial support (Jon)
* i386 TCG fixes (x87 and SSE, Joseph)
* vmport cleanup and improvements (Philippe, Liran)
* Use-after-free with vCPU hot-unplug (Nengyuan)
* run-coverity-scan improvements (myself)
* Record/replay fixes (Pavel)
* -machine kernel_irqchip=split improvements for INTx (Peter)
* Code cleanups (Philippe)
* Crash and security fixes (PJP)
* HVF cleanups (Roman)

# gpg: Signature made Fri 12 Jun 2020 16:57:04 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (116 commits)
  target/i386: Remove obsolete TODO file
  stubs: move Xen stubs to accel/
  replay: fix replay shutdown for console mode
  exec/cpu-common: Move MUSB specific typedefs to 'hw/usb/hcd-musb.h'
  hw/usb: Move device-specific declarations to new 'hcd-musb.h' header
  exec/memory: Remove unused MemoryRegionMmio type
  checkpatch: reversed logic with acpi test checks
  target/i386: sev: Unify SEVState and SevGuestState
  target/i386: sev: Remove redundant handle field
  target/i386: sev: Remove redundant policy field
  target/i386: sev: Remove redundant cbitpos and reduced_phys_bits fields
  target/i386: sev: Partial cleanup to sev_state global
  target/i386: sev: Embed SEVState in SevGuestState
  target/i386: sev: Rename QSevGuestInfo
  target/i386: sev: Move local structure definitions into .c file
  target/i386: sev: Remove unused QSevGuestInfoClass
  xen: fix build without pci passthrough
  i386: hvf: Drop HVFX86EmulatorState
  i386: hvf: Move mmio_buf into CPUX86State
  i386: hvf: Move lazy_flags into CPUX86State
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/i386/acpi-build.c
2020-06-12 23:06:22 +01:00
Michael S. Tsirkin 2046811c66 checkpatch: reversed logic with acpi test checks
Logic reversed: allowed list should just be ignored. Instead we
only take that into account :(

Fixes: e11b06a880 ("checkpatch: ignore allowed diff list")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20200602053614.54745-1-mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-12 11:20:14 -04:00
Peter Maydell c291aca63d Add non-overlapping groups
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Merge remote-tracking branch 'remotes/rth/tags/pull-dt-20200609' into staging

Add non-overlapping groups

# gpg: Signature made Tue 09 Jun 2020 17:22:17 BST
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-dt-20200609:
  target/arm: Use a non-overlapping group for misc control
  decodetree: Drop check for less than 2 patterns in a group
  tests/decode: Test non-overlapping groups
  decodetree: Implement non-overlapping groups
  decodetree: Move semantic propagation into classes
  decodetree: Allow group covering the entire insn space
  decodetree: Split out MultiPattern from IncMultiPattern
  decodetree: Rename MultiPattern to IncMultiPattern
  decodetree: Tidy error_with_file

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-11 11:20:39 +01:00
Paolo Bonzini fbb84f0741 run-coverity-scan: support --update-tools-only --docker
Just build the container when run-coverity-scan is invoked with
--update-tools-only --docker.  This requires moving the "docker build"
logic into the update_coverity_tools function.

The only snag is that --update-tools-only --docker requires access to
the dockerfile.  For now just report an error for --src-tarball, and
"docker build" will fail if not in a source tree.  Another possibility
could be to host our container images on a public registry, and use
"FROM qemu:fedora" to make the Dockerfile small enough that it can be
included directly in the run-coverity-scan script.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:34 -04:00
Paolo Bonzini 2e90470e90 run-coverity-scan: download tools outside the container
This lets us look at coverity_tool.md5 across executions of run-coverity-scan
and skip the download.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:33 -04:00
Paolo Bonzini 3077453cf9 run-coverity-scan: use --no-update-tools in docker run
Tools are already updated via the docker build.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:33 -04:00
Paolo Bonzini b99b007905 run-coverity-scan: add --no-update-tools option
Provide a quick way to skip building the container while we figure out how
to get caching right.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:33 -04:00
Paolo Bonzini 7265905940 run-coverity-scan: use docker.py
Our trusted docker wrapper allows run-coverity-scan to run with both
docker and podman.

For the "run" phase this is transparent; for the "build" phase however
scripts are replaced with a bind mount (-v).  This is not an issue
because the secret option is meant for secrets stored globally in the
system and bind mounts are a valid substitute for secrets that are known
to whoever builds the container.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:32 -04:00
Paolo Bonzini 6ed4075c3c run-coverity-scan: get Coverity token and email from special git config section
Support a [coverity] section in .git/config.  It can be used to retrieve the
token and also, if it is different from user.email, the username of the
submitter.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-10 12:09:32 -04:00
Richard Henderson fe079aa13d decodetree: Drop check for less than 2 patterns in a group
While it makes little sense for the end product to have a group
containing only a single pattern, avoiding this case within an
incremental patch set is troublesome.

Because this is expected to be a transient condition, do not
bother "optimizing" this case, e.g. by folding away the group.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-09 09:19:48 -07:00
Richard Henderson 067e8b0f45 decodetree: Implement non-overlapping groups
Intended to be nested within overlapping groups.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 11:09:43 -07:00
Richard Henderson 08561fc128 decodetree: Move semantic propagation into classes
Create ExcMultiPattern to hold an set of non-overlapping patterns.
The body of build_tree, prop_format become member functions on this
class.  Add minimal member functions to Pattern and MultiPattern
to allow recusion through the tree.

Move the bulk of build_incmulti_pattern to prop_masks and prop_width
in MultiPattern, since we will need this for both kinds of containers.
Only perform prop_width for variablewidth.

Remove global patterns variable, and pass down container object into
parse_file from main.

No functional change in all of this.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 10:36:47 -07:00
Richard Henderson b44b3449a0 decodetree: Allow group covering the entire insn space
This is an edge case for sure, but the logic that disallowed
this case was faulty.  Further, a few fixes scattered about
can allow this to work.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 10:36:47 -07:00
Richard Henderson df63044d02 decodetree: Split out MultiPattern from IncMultiPattern
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 10:36:47 -07:00
Richard Henderson 040145c4f8 decodetree: Rename MultiPattern to IncMultiPattern
Name the current node for "inclusive" multi-pattern, in
preparation for adding a node for "exclusive" multi-pattern.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 10:36:47 -07:00
Richard Henderson 2fd51b19c9 decodetree: Tidy error_with_file
Use proper varargs to print the arguments.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-06-08 10:36:47 -07:00
Philippe Mathieu-Daudé a5b04ccd74 scripts/coverity-scan: Remove flex/bison packages
QEMU does not use flex/bison packages.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200515163029.12917-6-philmd@redhat.com>
2020-06-08 17:04:19 +01:00
Philippe Mathieu-Daudé a6703e65ec scripts/clean-includes: Mark 'qemu/qemu-plugin.h' as special header
"qemu/qemu-plugin.h" isn't meant to be include by QEMU codebase,
but by 3rd party plugins that QEMU can use. These plugins can be
built out of QEMU and don't include "qemu/osdep.h".
Mark "qemu/qemu-plugin.h" as a special header that doesn't need
to be cleaned for "qemu/osdep.h".

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200524215654.13256-1-f4bug@amsat.org>
Message-Id: <20200605154929.26910-3-alex.bennee@linaro.org>
2020-06-08 16:59:29 +01:00
John Snow 2d110c1149 python: remove more instances of sys.version_info
We guarantee 3.5+ everywhere; remove more dead checks. In general, try
to avoid using version checks and instead prefer to attempt behavior
when possible.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200514035230.25756-1-jsnow@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 18:25:07 +02:00
John Snow c7b942d7f8 scripts/qmp: Fix shebang and imports
There's more wrong with these scripts; They are in various stages of
disrepair. That's beyond the scope of this current patchset.

This just mechanically corrects the imports and the shebangs, as part of
ensuring that the python/qemu/lib refactoring didn't break anything
needlessly.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20200528222129.23826-2-jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Philippe Mathieu-Daudé 5aa628045d scripts/modules/module_block: Use Python 3 interpreter & add pseudo-main
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-6-philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Philippe Mathieu-Daudé e57a707a82 scripts/kvm/vmxcap: Use Python 3 interpreter and add pseudo-main()
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-5-philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Philippe Mathieu-Daudé 06d4c71f48 scripts/qmp: Use Python 3 interpreter
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-4-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Philippe Mathieu-Daudé 806c200ef4 scripts/qemu-gdb: Use Python 3 interpreter
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-3-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Philippe Mathieu-Daudé 6acc5c0469 scripts/qemugdb: Remove shebang header
These scripts are loaded as plugin by GDB (and they don't
have any __main__ entry point). Remove the shebang header.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200512103238.7078-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-05-31 13:56:46 +02:00
Michael S. Tsirkin e11b06a880 checkpatch: ignore allowed diff list
Allow changing allowed diff list at any point:
- when changing code under test
- when adding expected files

It's just a list of files so easy to review and merge anyway.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-05-04 10:25:02 -04:00
Michael S. Tsirkin e625ba2a41 checkpatch: fix acpi check with multiple file name
Using global expected/nonexpected values causes
false positives when testing multiple patches in one
checkpatch run: one patch can change expected,
another one non-expected.

Use local variables within process() to fix that.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-05-04 10:25:02 -04:00
Markus Armbruster 89bf68f933 qapi: Generate simpler marshalling code when no arguments
When command FOO has no arguments, its generated qmp_marshal_FOO() is
a bit confusing.  Make it simpler:

     visit_start_struct(v, NULL, NULL, 0, &err);
     if (err) {
         goto out;
     }
-
-    if (!err) {
-        visit_check_struct(v, &err);
-    }
+    visit_check_struct(v, &err);
     visit_end_struct(v, NULL);
     if (err) {
         goto out;
     }

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200424084338.26803-16-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-04-30 07:26:41 +02:00
Markus Armbruster 2061487bdb qapi: Disallow qmp_marshal_FOO(NULL, ...)
For QMP commands without arguments, gen_marshal() laboriously
generates a qmp_marshal_FOO() that copes with null @args.  Turns
there's just one caller that passes null instead of an empty QDict.
Adjust that caller, and simplify gen_marshal().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200424084338.26803-15-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-04-30 07:26:41 +02:00
Markus Armbruster 7111a86e1b qapi: Assert non-input visitors see only valid alternate tags
An alternate type's visit_type_FOO() fails when it runs into an
invalid ->type.

This is appropriate with an input visitor: visit_start_alternate()
sets ->type according to the input, and bad input can lead to bad
->type.

It should never happen with an output, clone or dealloc visitor: if it
did, the alternate being output, cloned or deallocated would be messed
up beyond repair.  Assert that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200424084338.26803-12-armbru@redhat.com>
2020-04-30 07:26:40 +02:00
Markus Armbruster c978bd5226 qapi: Clean up visitor's recovery from input with invalid type
An alternate type's visit_type_FOO() fails when it runs into an
invalid ->type.  If it's an input visit, we then need to free the the
object we got from visit_start_alternate().  We do that with
qapi_free_FOO(), which uses the dealloc visitor.

Trouble is that object is in a bad state: its ->type is invalid.  So
the dealloc visitor will run into the same error again, and the error
recovery skips deallocating the alternate's (invalid) alternative.
Works, because qapi_free_FOO() ignores the error.

Avoid it instead: free the messed up object with by g_free().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200424084338.26803-11-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-04-30 07:26:40 +02:00
Markus Armbruster 8e08bf4ea2 qapi: Assert incomplete object occurs only in dealloc visitor
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200424084338.26803-7-armbru@redhat.com>
2020-04-30 06:51:15 +02:00
Peter Maydell 152d1967f6 kernel-doc: Use c:struct for Sphinx 3.0 and later
The kernel-doc Sphinx plugin and associated script currently emit
'c:type' directives for "struct foo" documentation.

Sphinx 3.0 warns about this:
  /home/petmay01/linaro/qemu-from-laptop/qemu/docs/../include/exec/memory.h:3: WARNING: Type must be either just a name or a typedef-like declaration.
  If just a name:
    Error in declarator or parameters
    Invalid C declaration: Expected identifier in nested name, got keyword: struct [error at 6]
      struct MemoryListener
      ------^
  If typedef-like declaration:
    Error in declarator or parameters
    Invalid C declaration: Expected identifier in nested name. [error at 21]
      struct MemoryListener
      ---------------------^

because it wants us to use the new-in-3.0 'c:struct' instead.

Plumb the Sphinx version through to the kernel-doc script
and use it to select 'c:struct' for newer versions than 3.0.

Fixes: LP:1872113
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2020-04-14 17:15:33 +01:00
Peter Maydell a62d563796 scripts/kernel-doc: Add missing close-paren in c:function directives
When kernel-doc generates a 'c:function' directive for a function
one of whose arguments is a function pointer, it fails to print
the close-paren after the argument list of the function pointer
argument, for instance in the memory API documentation:
  .. c:function:: void memory_region_init_resizeable_ram (MemoryRegion * mr, struct Object * owner, const char * name, uint64_t size, uint64_t max_size, void (*resized) (const char*, uint64_t length, void *host, Error ** errp)

which should have a ')' after the 'void *host' which is the
last argument to 'resized'.

Older versions of Sphinx don't try to parse the argumnet
to c:function, but Sphinx 3.0 does do this and will complain:

  /home/petmay01/linaro/qemu-from-laptop/qemu/docs/../include/exec/memory.h:834: WARNING: Error in declarator or parameters
  Invalid C declaration: Expecting "," or ")" in parameters, got "EOF". [error at 208]
    void memory_region_init_resizeable_ram (MemoryRegion * mr, struct Object * owner, const char * name, uint64_t size, uint64_t max_size, void (*resized) (const char*, uint64_t length, void *host, Error ** errp)
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------^

Add the missing close-paren.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200411182934.28678-3-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2020-04-14 17:14:18 +01:00
Peter Maydell 9edfa3580f scripts/coverity-scan: Add Docker support
Add support for running the Coverity Scan tools inside a Docker
container rather than directly on the host system.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200319193323.2038-7-peter.maydell@linaro.org
2020-04-14 13:15:40 +01:00
Peter Maydell 9c263d07fd scripts/run-coverity-scan: Script to run Coverity Scan build
Add a new script to automate the process of running the Coverity
Scan build tools and uploading the resulting tarball to the
website.

This is intended eventually to be driven from Travis,
but it can be run locally, if you are a maintainer of the
QEMU project on the Coverity Scan website and have the secret
upload token.

The script must be run on a Fedora 30 system.  Support for using a
Docker container is added in a following commit.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200319193323.2038-6-peter.maydell@linaro.org
2020-04-14 09:44:31 +01:00
Vladimir Sementsov-Ogievskiy d1d3a99795 scripts/coccinelle: add error-use-after-free.cocci
Add script to find and fix trivial use-after-free of Error objects.
How to use:
spatch --sp-file scripts/coccinelle/error-use-after-free.cocci \
 --macro-file scripts/cocci-macro-file.h --in-place \
 --no-show-diff ( FILES... | --use-gitgrep . )

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200324153630.11882-2-vsementsov@virtuozzo.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Pastos in commit message and comment fixed, globbing in MAINTAINERS
expanded]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-04-04 14:14:09 +02:00
Peter Maydell 82915faec3 virtio, pci, pc: bugfixes, checkpatch, maintainers
Bugfixes all over the place.
 Add a new balloon maintainer.
 A checkpatch enhancement to enforce ACPI change rules.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 =AqIW
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pci, pc: bugfixes, checkpatch, maintainers

Bugfixes all over the place.
Add a new balloon maintainer.
A checkpatch enhancement to enforce ACPI change rules.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 31 Mar 2020 15:54:36 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:
  vhost-vsock: fix double close() in the realize() error path
  acpi: add acpi=OnOffAuto machine property to x86 and arm virt
  fix vhost_user_blk_watch crash
  hw/i386/amd_iommu.c: Fix corruption of log events passed to guest
  virtio-iommu: avoid memleak in the unrealize
  virtio-blk: delete vqs on the error path in realize()
  acpi: pcihp: fix left shift undefined behavior in acpi_pcihp_eject_slot()
  virtio-serial-bus: Plug memory leak on realize() error paths
  MAINTAINERS: Add myself as virtio-balloon co-maintainer
  checkpatch: enforce process for expected files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-31 16:29:02 +01:00
Philippe Mathieu-Daudé b412378785 decodetree: Use Python3 floor division operator
This script started using Python2, where the 'classic' division
operator returns the floor result. In commit 3d004a371 we started
to use Python3, where the division operator returns the float
result ('true division').
To keep the same behavior, use the 'floor division' operator "//"
which returns the floor result.

Fixes: 3d004a371
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200330121345.14665-1-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-03-30 11:44:04 -07:00
Michael S. Tsirkin 1c3c9a8c5a checkpatch: enforce process for expected files
If the process documented in tests/qtest/bios-tables-test.c
is followed, then same patch never touches both expected
files and code. Teach checkpatch to enforce this rule.

Tested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-03-29 06:33:47 -04:00
Peter Maydell 52a96afaa2 update syscall numbers to linux 5.5 (with scripts)
add clock_gettime64/clock_settime64
 add AT_EXECFN
 
 v4: restore syscall.tbl series but remove vsyscall series
 v3: remove syscall.tbl series
 v2: guard copy_to_user_timezone() with TARGET_NR_gettimeofday
     remove "Support futex_time64" patch
     guard sys_futex with TARGET_NR_exit
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request' into staging

update syscall numbers to linux 5.5 (with scripts)
add clock_gettime64/clock_settime64
add AT_EXECFN

v4: restore syscall.tbl series but remove vsyscall series
v3: remove syscall.tbl series
v2: guard copy_to_user_timezone() with TARGET_NR_gettimeofday
    remove "Support futex_time64" patch
    guard sys_futex with TARGET_NR_exit

# gpg: Signature made Fri 20 Mar 2020 15:23:29 GMT
# 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/linux-user-for-5.0-pull-request: (32 commits)
  linux-user, openrisc: sync syscall numbers with kernel v5.5
  linux-user, nios2: sync syscall numbers with kernel v5.5
  linux-user, aarch64: sync syscall numbers with kernel v5.5
  scripts: add a script to generate syscall_nr.h
  linux-user,mips: update syscall-args-o32.c.inc
  linux-user,mips: move content of mips_syscall_args
  linux-user: update syscall.tbl from linux 0bf999f9c5e7
  linux-user, scripts: add a script to update syscall.tbl
  linux-user, mips64: add syscall table generation support
  linux-user, mips: add syscall table generation support
  linux-user, x86_64: add syscall table generation support
  linux-user, i386: add syscall table generation support
  linux-user, x86_64, i386: cleanup TARGET_NR_arch_prctl
  linux-user, sparc, sparc64: add syscall table generation support
  linux-user, s390x: add syscall table generation support
  linux-user, s390x: remove syscall definitions for !TARGET_S390X
  linux-user, ppc: add syscall table generation support
  linux-user, arm: add syscall table generation support
  linux-user, microblaze: add syscall table generation support
  linux-user, sh4: add syscall table generation support
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-03-20 16:00:21 +00:00
Laurent Vivier 382ae67af3 scripts: add a script to generate syscall_nr.h
This script is needed for targets based on asm-generic syscall numbers generation

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200316085620.309769-2-laurent@vivier.eu>
[lv: added file in MAINTAINERS]
2020-03-20 16:02:00 +01:00
Laurent Vivier 5733333020 linux-user,mips: update syscall-args-o32.c.inc
Add a script to update the file from strace github and run it

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-22-laurent@vivier.eu>
[lv: added file in MAINTAINERS]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20 16:02:00 +01:00