Commit Graph

100841 Commits

Author SHA1 Message Date
Peter Maydell
ce9a8863b2 target/arm: Correct syndrome for ATS12NSO* at Secure EL1
The AArch32 ATS12NSO* address translation operations are supposed to
trap to either EL2 or EL3 if they're executed at Secure EL1 (which
can only happen if EL3 is AArch64).  We implement this, but we got
the syndrome value wrong: like other traps to EL2 or EL3 on an
AArch32 cpreg access, they should report the 0x3 syndrome, not the
0x0 'uncategorized' syndrome.  This is clear in the access pseudocode
for these instructions.

Fix the syndrome value for these operations by correcting the
returned value from the ats_access() function.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-3-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-3-peter.maydell@linaro.org
2023-02-03 12:59:22 +00:00
Peter Maydell
3999d2d290 target/arm: Name AT_S1E1RP and AT_S1E1WP cpregs correctly
The encodings 0,0,C7,C9,0 and 0,0,C7,C9,1 are AT SP1E1RP and AT
S1E1WP, but our ARMCPRegInfo definitions for them incorrectly name
them AT S1E1R and AT S1E1W (which are entirely different
instructions).  Fix the names.

(This has no guest-visible effect as the names are for debug purposes
only.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-2-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-2-peter.maydell@linaro.org
2023-02-03 12:59:22 +00:00
Marcin Juszkiewicz
ed65e32cf5 sbsa-ref: remove cortex-a76 from list of supported cpus
Cortex-A76 supports 40bits of address space. sbsa-ref's memory
starts above this limit.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230126114416.2447685-1-marcin.juszkiewicz@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Alexander Graf
5e91b9e03f hw/arm/virt: Make accels in GIC finalize logic explicit
Let's explicitly list out all accelerators that we support when trying to
determine the supported set of GIC versions. KVM was already separate, so
the only missing one is HVF which simply reuses all of TCG's emulation
code and thus has the same compatibility matrix.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221223090107.98888-3-agraf@csgraf.de
[PMM: Added qtest to the list of accelerators]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Alexander Graf
a3495d11c4 hw/arm/virt: Consolidate GIC finalize logic
Up to now, the finalize_gic_version() code open coded what is essentially
a support bitmap match between host/emulation environment and desired
target GIC type.

This open coding leads to undesirable side effects. For example, a VM with
KVM and -smp 10 will automatically choose GICv3 while the same command
line with TCG will stay on GICv2 and fail the launch.

This patch combines the TCG and KVM matching code paths by making
everything a 2 pass process. First, we determine which GIC versions the
current environment is able to support, then we go through a single
state machine to determine which target GIC mode that means for us.

After this patch, the only user noticable changes should be consolidated
error messages as well as TCG -M virt supporting -smp > 8 automatically.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Message-id: 20221223090107.98888-2-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Alexander Graf
a2260983c6 hvf: arm: Add support for GICv3
We currently only support GICv2 emulation. To also support GICv3, we will
need to pass a few system registers into their respective handler functions.

This patch adds support for HVF to call into the TCG callbacks for GICv3
system register handlers. This is safe because the GICv3 TCG code is generic
as long as we limit ourselves to EL0 and EL1 - which are the only modes
supported by HVF.

To make sure nobody trips over that, we also annotate callbacks that don't
work in HVF mode, such as EL state change hooks.

With GICv3 support in place, we can run with more than 8 vCPUs.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Message-id: 20230128224459.70676-1-agraf@csgraf.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Evgeny Iakovlev
23dcbfc080 hw/char/pl011: better handling of FIFO flags on LCR reset
Current FIFO handling code does not reset RXFE/RXFF flags when guest
resets FIFO by writing to UARTLCR register, although internal FIFO state
is reset to 0 read count. Actual guest-visible flag update will happen
only on next data read or write attempt. As a result of that any guest
that expects RXFE flag to be set (and RXFF to be cleared) after resetting
FIFO will never see that happen.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230123162304.26254-5-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Evgeny Iakovlev
3b7a165e8c hw/char/pl011: implement a reset method
PL011 currently lacks a reset method. Implement it.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230123162304.26254-4-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Evgeny Iakovlev
13ea96fa34 hw/char/pl011: add post_load hook for backwards-compatibility
Previous change slightly modified the way we handle data writes when
FIFO is disabled. Previously we kept incrementing read_pos and were
storing data at that position, although we only have a
single-register-deep FIFO now. Then we changed it to always store data
at pos 0.

If guest disables FIFO and the proceeds to read data, it will work out
fine, because we still read from current read_pos before setting it to
0.

However, to make code less fragile, introduce a post_load hook for
PL011State and move fixup read FIFO state when FIFO is disabled. Since
we are introducing a post_load hook, also do some sanity checking on
untrusted incoming input state.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Message-id: 20230123162304.26254-3-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:22 +00:00
Evgeny Iakovlev
9d88935cb1 hw/char/pl011: refactor FIFO depth handling code
PL011 can be in either of 2 modes depending guest config: FIFO and
single register. The last mode could be viewed as a 1-element-deep FIFO.

Current code open-codes a bunch of depth-dependent logic. Refactor FIFO
depth handling code to isolate calculating current FIFO depth.

One functional (albeit guest-invisible) side-effect of this change is
that previously we would always increment s->read_pos in UARTDR read
handler even if FIFO was disabled, now we are limiting read_pos to not
exceed FIFO depth (read_pos itself is reset to 0 if user disables FIFO).

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230123162304.26254-2-eiakovlev@linux.microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:21 +00:00
Richard Henderson
9d2617ac7d target/arm: Fix physical address resolution for Stage2
Conversion to probe_access_full missed applying the page offset.

Cc: qemu-stable@nongnu.org
Reported-by: Sid Manning <sidneym@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230126233134.103193-1-richard.henderson@linaro.org
Fixes: f3639a64f6 ("target/arm: Use softmmu tlbs for page table walking")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:21 +00:00
Richard Henderson
a431ab0e4e hw/arm: Use TYPE_ARM_SMMUV3
Use the macro instead of two explicit string literals.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20230124232059.4017615-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 12:59:21 +00:00
Peter Maydell
bf4460a8d9 common-user: Re-enable ppc32 host
tcg: Avoid recursion in tcg_gen_mulu2_i32
 tcg: Mark tcg helpers noinline to avoid an issue with LTO
 tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
 disas: Enable loongarch disassembler, and fixes
 tcg/loongarch64: Improve move immediate
 tcg/loongarch64: Improve add immediate
 tcg/loongarch64: Improve setcond
 tcg/loongarch64: Implement movcond
 tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
 tcg/loongarch64: Reorg goto_tb implementation
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Merge tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu into staging

common-user: Re-enable ppc32 host
tcg: Avoid recursion in tcg_gen_mulu2_i32
tcg: Mark tcg helpers noinline to avoid an issue with LTO
tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
disas: Enable loongarch disassembler, and fixes
tcg/loongarch64: Improve move immediate
tcg/loongarch64: Improve add immediate
tcg/loongarch64: Improve setcond
tcg/loongarch64: Implement movcond
tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
tcg/loongarch64: Reorg goto_tb implementation

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# gpg: Signature made Tue 24 Jan 2023 02:01:17 GMT
# 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

* tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu:
  tcg/loongarch64: Reorg goto_tb implementation
  tcg/loongarch64: Use tcg_pcrel_diff in tcg_out_ldst
  tcg/loongarch64: Implement movcond
  tcg/loongarch64: Improve setcond expansion
  tcg/loongarch64: Introduce tcg_out_addi
  tcg/loongarch64: Update tcg-insn-defs.c.inc
  tcg/loongarch64: Optimize immediate loading
  target/loongarch: Disassemble pcadd* addresses
  target/loongarch: Disassemble jirl properly
  target/loongarch: Enable the disassembler for host tcg
  tcg: Mark tcg helpers noinline to avoid an issue with LTO
  linux-user: Implment host/ppc/host-signal.h
  common-user/host/ppc: Implement safe-syscall.inc.S
  tcg/arm: Use register pair allocation for qemu_{ld,st}_i64
  tcg: Avoid recursion in tcg_gen_mulu2_i32

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03 09:30:45 +00:00
Peter Maydell
f991d61d35 Testing, docs, semihosting and plugin updates
- update playbooks for custom runners
   - add section timing support to gitlab
   - upgrade fedora images to 37
   - purge perl from the build system and deps
   - disable unstable tests in CI
   - improve intro, emulation and semihosting docs
   - semihosting bug fix and O_BINARY default
   - add memory-sve test
   - fix some races in qht
   - improve plugin handling of memory helpers
   - optimise plugin hooks
   - fix some plugin deadlocks
   - reduce win64-cross build time by dropping some targets
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Merge tag 'pull-jan-omnibus-020223-1' of https://gitlab.com/stsquad/qemu into staging

Testing, docs, semihosting and plugin updates

  - update playbooks for custom runners
  - add section timing support to gitlab
  - upgrade fedora images to 37
  - purge perl from the build system and deps
  - disable unstable tests in CI
  - improve intro, emulation and semihosting docs
  - semihosting bug fix and O_BINARY default
  - add memory-sve test
  - fix some races in qht
  - improve plugin handling of memory helpers
  - optimise plugin hooks
  - fix some plugin deadlocks
  - reduce win64-cross build time by dropping some targets

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# gpg: Signature made Thu 02 Feb 2023 15:59:52 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-jan-omnibus-020223-1' of https://gitlab.com/stsquad/qemu: (36 commits)
  gitlab: cut even more from cross-win64-system build
  plugins: Iterate on cb_lists in qemu_plugin_user_exit
  cpu-exec: assert that plugin_mem_cbs is NULL after execution
  tcg: exclude non-memory effecting helpers from instrumentation
  translator: always pair plugin_gen_insn_{start, end} calls
  plugins: fix optimization in plugin_gen_disable_mem_helpers
  plugins: make qemu_plugin_user_exit's locking order consistent with fork_start's
  util/qht: use striped locks under TSAN
  thread: de-const qemu_spin_destroy
  util/qht: add missing atomic_set(hashes[i])
  cpu: free cpu->tb_jmp_cache with RCU
  tests/tcg: add memory-sve test for aarch64
  semihosting: add O_BINARY flag in host_open for NT compatibility
  semihosting: Write back semihosting data before completion callback
  docs: add an introduction to the system docs
  semihosting: add semihosting section to the docs
  docs: add a new section to outline emulation support
  docs: add hotlinks to about preface text
  MAINTAINERS: Fix the entry for tests/tcg/nios2
  gitlab: wrap up test results for custom runners
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-02 18:00:41 +00:00
Peter Maydell
387b2b5255 * qtest improvements
* Remove the deprecated OTP config of sifive_u
 * Add libfdt to some of our CI jobs that were still missing it
 * Use __builtin_bswap() everywhere (all compiler versions support it now)
 * Deprecate the HAXM accelerator
 * Document PCI devices handling on s390x
 * Make Audiodev introspectable
 * Improve the runtime of some CI jobs
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Merge tag 'pull-request-2023-01-31' of https://gitlab.com/thuth/qemu into staging

* qtest improvements
* Remove the deprecated OTP config of sifive_u
* Add libfdt to some of our CI jobs that were still missing it
* Use __builtin_bswap() everywhere (all compiler versions support it now)
* Deprecate the HAXM accelerator
* Document PCI devices handling on s390x
* Make Audiodev introspectable
* Improve the runtime of some CI jobs

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# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 31 Jan 2023 10:05:10 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2023-01-31' of https://gitlab.com/thuth/qemu: (27 commits)
  gitlab-ci.d/buildtest: Merge the --without-default-* jobs
  tests/qtest/display-vga-test: Add proper checks if a device is available
  gitlab-ci.d/buildtest: Remove ppc-softmmu from the clang-system job
  qapi, audio: Make introspection reflect build configuration more closely
  qapi, audio: add query-audiodev command
  docs/s390x/pcidevices: document pci devices on s390x
  tests/qtest/boot-serial-test: Constify tests[] array
  tests/qtest/vnc-display-test: Disable on Darwin
  tests/qtest/vnc-display-test: Use the 'none' machine
  tests/qtest/vnc-display-test: Suppress build warnings on Windows
  tests/tcg: Do not build/run TCG tests if TCG is disabled
  docs/about/deprecated: Mark HAXM in QEMU as deprecated
  MAINTAINERS: Abort HAXM maintenance
  qemu/bswap: Use compiler __builtin_bswap() on NetBSD
  qemu/bswap: Use compiler __builtin_bswap() on FreeBSD
  qemu/bswap: Use compiler __builtin_bswap() on Haiku
  qemu/bswap: Remove <byteswap.h> dependency
  qemu/bswap: Replace bswapXXs() by compiler __builtin_bswap()
  qemu/bswap: Replace bswapXX() by compiler __builtin_bswap()
  tests/docker/dockerfiles: Add libfdt to the i386 and to the riscv64 container
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-02 13:42:56 +00:00
Alex Bennée
b3ca9646b9 gitlab: cut even more from cross-win64-system build
This keeps hitting the time limits so cut even more from the list.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2023-02-02 13:25:27 +00:00
Richard Henderson
f45549233f plugins: Iterate on cb_lists in qemu_plugin_user_exit
Rather than iterate over all plugins for all events,
iterate over plugins that have registered a given event.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230117035701.168514-4-richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-36-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
882f5b1b44 cpu-exec: assert that plugin_mem_cbs is NULL after execution
Fixes: #1381

Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230108165107.62488-1-cota@braap.org>
[AJB: manually applied follow-up fix]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124180127.1881110-35-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
17083f6fa6 tcg: exclude non-memory effecting helpers from instrumentation
There are actually a whole bunch of helpers that don't affect memory
that we shouldn't instrument. They are helpfully identified by the
TCG_CALL_NO_SIDE_EFFECTS flag which marks out lookup_tb_ptr as well as
a lot of the maths helpers. To avoid the string compare we introduce a
new flag for plugin internals so we skip that too.

Related: #1381
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230108164731.61469-4-cota@braap.org>
[AJB: updated to skip all no SE plugins, add flag for plugin helper]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124180127.1881110-34-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
0f92d94ae3 translator: always pair plugin_gen_insn_{start, end} calls
Related: #1381

Signed-off-by: Emilio Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230108164731.61469-3-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-33-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
3fd62e73ad plugins: fix optimization in plugin_gen_disable_mem_helpers
We were mistakenly checking tcg_ctx->plugin_insn as a canary to know
whether the TB had emitted helpers that might have accessed memory.

The problem is that tcg_ctx->plugin_insn gets updated on every
instruction in the TB, which results in us wrongly performing the
optimization (i.e. not clearing cpu->plugin_mem_cbs) way too often,
since it's not rare that the last instruction in the TB doesn't
use helpers.

Fix it by tracking a per-TB canary.

While at it, expand documentation.

Related: #1381

Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230108164731.61469-2-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-32-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
2bbbc1be8d plugins: make qemu_plugin_user_exit's locking order consistent with fork_start's
To fix potential deadlocks as reported by tsan.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230111151628.320011-6-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-31-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
68f7b2be53 util/qht: use striped locks under TSAN
Fixes this tsan crash, easy to reproduce with any large enough program:

$ tests/unit/test-qht
1..2
ThreadSanitizer: CHECK failed: sanitizer_deadlock_detector.h:67 "((n_all_locks_)) < (((sizeof(all_locks_with_contexts_)/sizeof((all_locks_with_contexts_)[0]))))" (0x40, 0x40) (tid=1821568)
    #0 __tsan::CheckUnwind() ../../../../src/libsanitizer/tsan/tsan_rtl.cpp:353 (libtsan.so.2+0x90034)
    #1 __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cpp:86 (libtsan.so.2+0xca555)
    #2 __sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::addLock(unsigned long, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:67 (libtsan.so.2+0xb3616)
    #3 __sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::addLock(unsigned long, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:59 (libtsan.so.2+0xb3616)
    #4 __sanitizer::DeadlockDetector<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::onLockAfter(__sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >*, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:216 (libtsan.so.2+0xb3616)
    #5 __sanitizer::DD::MutexAfterLock(__sanitizer::DDCallback*, __sanitizer::DDMutex*, bool, bool) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector1.cpp:169 (libtsan.so.2+0xb3616)
    #6 __tsan::MutexPostLock(__tsan::ThreadState*, unsigned long, unsigned long, unsigned int, int) ../../../../src/libsanitizer/tsan/tsan_rtl_mutex.cpp:200 (libtsan.so.2+0xa3382)
    #7 __tsan_mutex_post_lock ../../../../src/libsanitizer/tsan/tsan_interface_ann.cpp:384 (libtsan.so.2+0x76bc3)
    #8 qemu_spin_lock /home/cota/src/qemu/include/qemu/thread.h:259 (test-qht+0x44a97)
    #9 qht_map_lock_buckets ../util/qht.c:253 (test-qht+0x44a97)
    #10 do_qht_iter ../util/qht.c:809 (test-qht+0x45f33)
    #11 qht_iter ../util/qht.c:821 (test-qht+0x45f33)
    #12 iter_check ../tests/unit/test-qht.c:121 (test-qht+0xe473)
    #13 qht_do_test ../tests/unit/test-qht.c:202 (test-qht+0xe473)
    #14 qht_test ../tests/unit/test-qht.c:240 (test-qht+0xe7c1)
    #15 test_default ../tests/unit/test-qht.c:246 (test-qht+0xe828)
    #16 <null> <null> (libglib-2.0.so.0+0x7daed)
    #17 <null> <null> (libglib-2.0.so.0+0x7d80a)
    #18 <null> <null> (libglib-2.0.so.0+0x7d80a)
    #19 g_test_run_suite <null> (libglib-2.0.so.0+0x7dfe9)
    #20 g_test_run <null> (libglib-2.0.so.0+0x7e055)
    #21 main ../tests/unit/test-qht.c:259 (test-qht+0xd2c6)
    #22 __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 (libc.so.6+0x29d8f)
    #23 __libc_start_main_impl ../csu/libc-start.c:392 (libc.so.6+0x29e3f)
    #24 _start <null> (test-qht+0xdb44)

Signed-off-by: Emilio Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230111151628.320011-5-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-30-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
047e2bd338 thread: de-const qemu_spin_destroy
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230111151628.320011-4-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-29-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
def48dddcf util/qht: add missing atomic_set(hashes[i])
We forgot to add this one in "a890643958 util/qht: atomically set b->hashes".

Detected with tsan.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230111151628.320011-3-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-28-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Emilio Cota
4731f89b3b cpu: free cpu->tb_jmp_cache with RCU
Fixes the appended use-after-free. The root cause is that
during tb invalidation we use CPU_FOREACH, and therefore
to safely free a vCPU we must wait for an RCU grace period
to elapse.

$ x86_64-linux-user/qemu-x86_64 tests/tcg/x86_64-linux-user/munmap-pthread
=================================================================
==1800604==ERROR: AddressSanitizer: heap-use-after-free on address 0x62d0005f7418 at pc 0x5593da6704eb bp 0x7f4961a7ac70 sp 0x7f4961a7ac60
READ of size 8 at 0x62d0005f7418 thread T2
    #0 0x5593da6704ea in tb_jmp_cache_inval_tb ../accel/tcg/tb-maint.c:244
    #1 0x5593da6704ea in do_tb_phys_invalidate ../accel/tcg/tb-maint.c:290
    #2 0x5593da670631 in tb_phys_invalidate__locked ../accel/tcg/tb-maint.c:306
    #3 0x5593da670631 in tb_invalidate_phys_page_range__locked ../accel/tcg/tb-maint.c:542
    #4 0x5593da67106d in tb_invalidate_phys_range ../accel/tcg/tb-maint.c:614
    #5 0x5593da6a64d4 in target_munmap ../linux-user/mmap.c:766
    #6 0x5593da6dba05 in do_syscall1 ../linux-user/syscall.c:10105
    #7 0x5593da6f564c in do_syscall ../linux-user/syscall.c:13329
    #8 0x5593da49e80c in cpu_loop ../linux-user/x86_64/../i386/cpu_loop.c:233
    #9 0x5593da6be28c in clone_func ../linux-user/syscall.c:6633
    #10 0x7f496231cb42 in start_thread nptl/pthread_create.c:442
    #11 0x7f49623ae9ff  (/lib/x86_64-linux-gnu/libc.so.6+0x1269ff)

0x62d0005f7418 is located 28696 bytes inside of 32768-byte region [0x62d0005f0400,0x62d0005f8400)
freed by thread T148 here:
    #0 0x7f49627b6460 in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:52
    #1 0x5593da5ac057 in cpu_exec_unrealizefn ../cpu.c:180
    #2 0x5593da81f851  (/home/cota/src/qemu/build/qemu-x86_64+0x484851)

Signed-off-by: Emilio Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230111151628.320011-2-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-27-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Alex Bennée
d54c6d3b5d tests/tcg: add memory-sve test for aarch64
This will be helpful in debugging problems with tracking SVE memory
accesses via the TCG plugins system.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Robert Henry <robhenry@microsoft.com>
Cc: Aaron Lindsay <aaron@os.amperecomputing.com>
Message-Id: <20230124180127.1881110-26-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Evgeny Iakovlev
0bccdb42df semihosting: add O_BINARY flag in host_open for NT compatibility
Windows open(2) implementation opens files in text mode by default and
needs a Windows-only O_BINARY flag to open files as binary. QEMU already
knows about that flag in osdep and it is defined to 0 on non-Windows,
so we can just add it to the host_flags for better compatibility.

Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20230106102018.20520-1-eiakovlev@linux.microsoft.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-25-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Keith Packard
978c2bf97b semihosting: Write back semihosting data before completion callback
'lock_user' allocates a host buffer to shadow a target buffer,
'unlock_user' copies that host buffer back to the target and frees the
host memory. If the completion function uses the target buffer, it
must be called after unlock_user to ensure the data are present.

This caused the arm-compatible TARGET_SYS_READC to fail as the
completion function, common_semi_readc_cb, pulled data from the target
buffer which would not have been gotten the console data.

I decided to fix all instances of this pattern instead of just the
console_read function to make things consistent and potentially fix
bugs in other cases.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221012014822.1242170-1-keithp@keithp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124180127.1881110-24-alex.bennee@linaro.org>
2023-02-02 11:48:20 +00:00
Alex Bennée
2c46bc240a docs: add an introduction to the system docs
Drop the frankly misleading quickstart section for a more rounded
introduction section. This new section gives an overview of the
accelerators as well as a high level introduction to some of the key
features of the emulator. We also expand on a general form for a QEMU
command line with a hopefully not too scary worked example of what
this looks like.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Message-Id: <20230124180127.1881110-23-alex.bennee@linaro.org>
2023-02-02 11:48:18 +00:00
Alex Bennée
2da9d21360 semihosting: add semihosting section to the docs
The main reason to do this is to document our O_BINARY implementation
decision somewhere. However I've also moved some of the implementation
details out of qemu-options and added links between the two. As a
bonus I've highlighted the scary warnings about host access with the
appropriate RST tags.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-22-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
a0a6754bb5 docs: add a new section to outline emulation support
This affects both system and user mode emulation so we should probably
list it up front.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-21-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
9d195efd65 docs: add hotlinks to about preface text
Make it easier to navigate the documentation.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124180127.1881110-20-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Thomas Huth
51d11acf31 MAINTAINERS: Fix the entry for tests/tcg/nios2
tests/tcg/nios2/Makefile.target has accidentally been added
to the Microblaze section. Move it into the correct nios2
section instead - and while we're at it, it should also cover
the whole folder, and not only the Makefile.

Fixes: 67f80eb4d0 ("tests/tcg: enable debian-nios2-cross for test building")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230119130326.2030297-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-19-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
6e890b0521 gitlab: wrap up test results for custom runners
Instead of spewing the whole log to stdout lets just define them as
build artefacts so we can examine them later. Where we are running
check-tcg run it first as those tests are yet to be integrated into
meson. To avoid confusion we don't run multiple check-tcg tests at
once.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-18-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Richard Henderson
57dbce5a4f tests/tcg: Use SIGKILL for timeout
linux-user blocks all signals while attempting to handle guest
signals (e.g. ABRT), which means that the default TERM sent by timeout
has no effect -- KILL instead.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230117035701.168514-2-richard.henderson@linaro.org>
[AJB: expanded commit message from cover letter]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124180127.1881110-17-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
5842de5157 tests/tcg: skip the vma-pthread test on CI
We are getting a lot of failures that are not related to changes so
this could be a flaky test.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-16-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
5b96363262 tests/docker: drop debian-tricore-cross's partial status
This image is perfectly capable of building QEMU, and indeed we do
that on gitlab. Drop the DOCKER_PARTIAL_IMAGES setting so we can also
test the gitlab build locally.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-15-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Philippe Mathieu-Daudé
7ac17cb8b2 tests/docker: Install flex in debian-tricore-cross
When flex is not available, binutils sources default to the
'missing' script, but the current script available is not in
the format expected by the 'configure' script:

  $ ./configure
  ...
  /usr/src/binutils/missing: Unknown `--run' option
  Try `/usr/src/binutils/missing --help' for more information
  configure: WARNING: `missing' script is too old or missing
  ...
  checking for bison... bison -y
  checking for flex... no
  checking for lex... no
  checking for flex... /usr/src/binutils/missing flex

  $ make
  ...
  updating ldgram.h
  gcc -DHAVE_CONFIG_H -I. -I. -I. -D_GNU_SOURCE -I. -I. -I../bfd -I./../bfd -I./../include -I./../intl -I../intl  -w -DLOCALEDIR="\"/usr/local/share/locale\""   -W -Wall -Wstrict-prototypes -Wmissing-prototypes -w -c `test -f 'ldgram.c' || echo './'`ldgram.c
  `test -f ldlex.l || echo './'`ldlex.l
  /bin/sh: 1: ldlex.l: not found
  make[3]: *** [Makefile:662: ldlex.c] Error 127
  make[3]: Leaving directory '/usr/src/binutils/ld'
  make[2]: *** [Makefile:799: all-recursive] Error 1

By pass the 'missing' script use by directly installing 'flex'
in the container.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230112155643.7408-1-philmd@linaro.org>
Reviewed-by: Bastian-Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-14-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
df07c72a74 lcitool: drop texinfo from QEMU project/dependencies
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-9-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-13-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
7a6e869cb5 lcitool: drop perl from QEMU project/dependencies
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-8-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-12-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
0054dc8bde Update lcitool and fedora to 37
Fedora 35 is EOL.

Update to upstream lcitool, that dropped f35 and added f37.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-7-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-11-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
3ab8bf8341 gitlab: add lsan suppression file to workaround tcmalloc issues
The up-coming upgrade to Fedora 37 will bring in libtcmalloc as a
dependency of libglusterfs which confuses our fuzz run. Rather than
disable the build lets use LSAN's suppression mechanism to prevent the
job from failing.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-10-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
d89935c95e docs: drop texinfo options
It looks like this is no longer wanted, we only build the html output.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-6-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-9-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
ec91e92378 meson: replace Perl usage with Python
Let's try to remove Perl usage during build time.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230110132700.833690-5-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-8-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
7195f30248 .gitlab-ci.d/windows: do not disable opengl
The previous patch should have fixed shader compilation.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230110132700.833690-3-marcandre.lureau@redhat.com>
[AJB: tweak commit message]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-7-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Marc-André Lureau
e2c4012bc3 build-sys: fix crlf-ending C code
On msys2, the shader-to-C script produces bad C:
./ui/shader/texture-blit-vert.h:2:5: error: missing terminating " character [-Werror]

Fix it by changing the line ending from crlf to lf, and convert the
script to Python (qemu build seems perl-free after that).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230110132700.833690-2-marcandre.lureau@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-6-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c906e6fbaa tests/unit: drop hacky race avoidance in test-io-channel-command
We don't need to play timing games to ensure one socat wins over the
other, just create the fifo they both can use before spawning the
processes. However in the process we need to disable two tests for
Windows platforms as we don't have an abstraction for mkfifo().

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1403
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230124180127.1881110-5-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Alex Bennée
c34bf19feb gitlab: just use plain --cc=clang for custom runner build
I think this was because older Ubuntu's didn't alias clang to whatever
the latest version was. They do now so lets use that and not break.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-4-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Mark Cave-Ayland
075d909d04 gitlab: add FF_SCRIPT_SECTIONS for timings
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20230124180127.1881110-3-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00