3748 Commits

Author SHA1 Message Date
WorksButNotTested
ad4b20f018 Fix madvise(MADV_DONTDUMP) 2025-05-06 10:18:23 +00:00
WorksButNotTested
15fcf9af71 Support madvise(MADV_DONTDUMP) when creating core dumps for qemu-user
When running applications which make large (sparsely populated) address ranges
(e.g. when using address sanitizer with LibAFL) the inability to exclude these
regions from any core dump can result in very large files which fill the disk.
A coredump is obvously very useful for performing a post-mortem when fuzzing.

Whilst the man pages state that madvise provides only a hint (and hence can be
ignored), this patch adds support to handle MADV_DONTDUMP and set a
corresponding flag in the page flags, thus allowing QEMU to exclude these
regions from the core file.
2025-05-02 19:41:13 +01:00
Romain Malmain
5feca574fc
forgot include 2025-05-02 14:43:34 +02:00
Romain Malmain
d4a6db3260
forgot include 2025-05-02 14:36:38 +02:00
Romain Malmain
4b35c57b08
forgot include 2025-05-02 14:34:51 +02:00
Romain Malmain
92e59e0587
forgot include 2025-05-02 13:19:44 +02:00
Romain Malmain
7633d5fce5
reorganize stuff 2025-04-29 14:26:42 +02:00
Romain Malmain
5682a6d841 v10.0.0 release
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Merge tag 'v10.0.0' into update_qemu_v10_0_0

v10.0.0 release
2025-04-29 13:00:44 +02:00
Stefan Hajnoczi
71119ed365 * exec/cpu-all: remove BSWAP_NEEDED
* pl011: pad C PL011State struct to same size as Rust struct
 * rust: hpet: fix type of "timers" property
 * rust: hpet: fix functional tests (and really everything that uses it)
 * rust: Kconfig: Factor out whether devices are Rust or C
 * rust: vmstate: Fixes and tests
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* exec/cpu-all: remove BSWAP_NEEDED
* pl011: pad C PL011State struct to same size as Rust struct
* rust: hpet: fix type of "timers" property
* rust: hpet: fix functional tests (and really everything that uses it)
* rust: Kconfig: Factor out whether devices are Rust or C
* rust: vmstate: Fixes and tests

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# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (24 commits)
  rust: hpet: fix decoding of timer registers
  rust/vmstate: Include complete crate path of VMStateFlags in vmstate_clock
  rust/vmstate: Add unit test for vmstate_validate
  rust/vmstate: Add unit test for pointer case
  rust/vmstate: Add unit test for vmstate_{of|struct} macro
  rust/vmstate: Add unit test for vmstate_of macro
  rust/vmstate: Support vmstate_validate
  rust/vmstate: Re-implement VMState trait for timer binding
  rust/vmstate: Relax array check when build varray in vmstate_struct
  rust/vmstate: Fix unnecessary VMState bound of with_varray_flag()
  rust/vmstate: Fix "cannot infer type" error in vmstate_struct
  rust/vmstate: Fix type check for varray in vmstate_struct
  rust/vmstate: Fix size field of VMStateField with VMS_ARRAY_OF_POINTER flag
  rust/vmstate: Fix num field when varray flags are set
  rust/vmstate: Fix num_offset in vmstate macros
  rust/vmstate: Remove unnecessary unsafe
  exec/cpu-all: remove BSWAP_NEEDED
  load_aout: replace bswap_needed with big_endian
  rust: pl011: Check size of state struct at compile time
  hw/char/pl011: Pad PL011State struct to same size as Rust impl
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-23 11:04:40 -04:00
Pierrick Bouvier
e16354b7f2 exec/cpu-all: remove BSWAP_NEEDED
This identifier is poisoned, so it can't be used from common code
anyway. We replace all occurrences with its definition directly.

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Link: https://lore.kernel.org/r/20250320223002.2915728-2-pierrick.bouvier@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-21 12:53:36 +01:00
Richard Henderson
1a010d22b7 linux-user/riscv: Fix handling of cpu mask in riscv_hwprobe syscall
The third argument of the syscall contains the size of the
cpu mask in bytes, not bits.  Nor is the size rounded up to
a multiple of sizeof(abi_ulong).

Cc: qemu-stable@nongnu.org
Reported-by: Andreas Schwab <schwab@suse.de>
Fixes: 9e1c7d982d7 ("linux-user/riscv: Add syscall riscv_hwprobe")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250308225902.1208237-3-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-03-19 16:42:09 +10:00
Romain Malmain
2a676d9cd8 v9.2.2 release
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Merge tag 'v9.2.2' into update_qemu_v9_2_2

v9.2.2 release
2025-03-18 15:32:47 +01:00
Romain Malmain
4df4d2dcfa
Add crash exit request (#106)
* add crash exit request.

* make it possible to choose between crashing methods
2025-03-14 16:57:23 +01:00
Peter Maydell
63d8b11d0a linux-user/arm: Remove unused get_put_user macros
In linux-user/arm/cpu_loop.c we define a full set of get/put
macros for both code and data (since the endianness handling
is different between the two). However the only one we actually
use is get_user_code_u32(). Remove the rest.

We leave a comment noting how data-side accesses should be handled
for big-endian, because that's a subtle point and we just removed the
macros that were effectively documenting it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2025-03-14 10:49:20 +00:00
Peter Maydell
fe0f88ab87 linux-user/aarch64: Remove unused get/put_user macros
At the top of linux-user/aarch64/cpu_loop.c we define a set of
macros for reading and writing data and code words, but we never
use these macros. Delete them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2025-03-14 10:49:20 +00:00
Alex Bennée
903e870f24 plugins/api: split out binary path/start/end/entry code
To move the main api.c to a single build compilation object we need to
start splitting out user and system specific code. As we need to grob
around host headers we move these particular helpers into the *-user
mode directories.

The binary/start/end/entry helpers are all NOPs for system mode.

While using the plugin-api.c.inc trick means we build for both
linux-user and bsd-user the BSD user-mode command line is still
missing -plugin. This can be enabled once we have reliable check-tcg
tests working for the BSDs.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-27-alex.bennee@linaro.org>
2025-03-10 10:30:01 +00:00
Philippe Mathieu-Daudé
18b3abb722 user: Prefer cached CpuClass over CPU_GET_CLASS() macro
CpuState caches its CPUClass since commit 6fbdff87062
("cpu: cache CPUClass in CPUState for hot code paths"),
use it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250122093028.52416-7-philmd@linaro.org>
2025-03-09 17:00:47 +01:00
Philippe Mathieu-Daudé
1405d7e60d user: Extract common MMAP API to 'user/mmap.h'
Keep common MMAP-related declarations in a single place.

Note, this disable ThreadSafetyAnalysis on Linux for:
- mmap_fork_start()
- mmap_fork_end().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250308122842.76377-4-philmd@linaro.org>
2025-03-09 14:54:32 +01:00
Philippe Mathieu-Daudé
c9ce8a1ffd linux-user: Only include 'exec/tb-flush.h' header when necessary
Very few source files require to access "exec/tb-flush.h"
declarations, and except a pair, they all include it
explicitly. No need to overload the generic "user-internals.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <20250102182521.65428-2-philmd@linaro.org>
2025-03-09 14:54:32 +01:00
Ilya Leoshkevich
44ed2fd1ea linux-user/main: Allow setting tb-size
While qemu-system can set tb-size using -accel tcg,tb-size=n, there
is no similar knob for qemu-user. Add one in a way similar to how
one-insn-per-tb is already handled.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240730215532.1442-1-iii@linux.ibm.com>
2025-03-07 07:53:44 -08:00
Philippe Mathieu-Daudé
1501743654 accel/tcg: Rename 'hw/core/tcg-cpu-ops.h' -> 'accel/tcg/cpu-ops.h'
TCGCPUOps structure makes more sense in the accelerator context
rather than hardware emulation. Move it under the accel/tcg/ scope.

Mechanical change doing:

 $  sed -i -e 's,hw/core/tcg-cpu-ops.h,accel/tcg/cpu-ops.h,g' \
   $(git grep -l hw/core/tcg-cpu-ops.h)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250123234415.59850-11-philmd@linaro.org>
2025-03-06 15:46:17 +01:00
Fabiano Rosas
dffec2ddd0 elfload: Fix alignment when unmapping excess reservation
When complying with the alignment requested in the ELF and unmapping
the excess reservation, having align_end not aligned to the guest page
causes the unmap to be rejected by the alignment check at
target_munmap and later brk adjustments hit an EEXIST.

Fix by aligning the start of region to be unmapped.

Fixes: c81d1fafa6 ("linux-user: Honor elf alignment when placing images")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1913
Signed-off-by: Fabiano Rosas <farosas@suse.de>
[rth: Align load_end as well.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250213143558.10504-1-farosas@suse.de>
(cherry picked from commit 4b7b20a3b72c5000ea71bef505c16e6e628268b6)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2025-02-19 14:01:02 +03:00
Andreas Schwab
513823e752 linux-user: Move TARGET_SA_RESTORER out of generic/signal.h
SA_RESTORER and the associated sa_restorer field of struct sigaction are
an obsolete feature, not expected to be used by future architectures.
They are also absent on RISC-V, LoongArch, Hexagon and OpenRISC, but
defined due to their use of generic/signal.h.  This leads to corrupted
data and out-of-bounds accesses.

Move the definition of TARGET_SA_RESTORER out of generic/signal.h into the
target_signal.h files that need it.  Note that m68k has the sa_restorer
field, but does not use it and does not define SA_RESTORER.

Reported-by: Thomas Weißschuh <thomas@t-8ch.de>
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Thomas Weißschuh <thomas@t-8ch.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <mvmed060xc9.fsf@suse.de>
2025-02-18 08:29:03 -08:00
Fabiano Rosas
4b7b20a3b7 elfload: Fix alignment when unmapping excess reservation
When complying with the alignment requested in the ELF and unmapping
the excess reservation, having align_end not aligned to the guest page
causes the unmap to be rejected by the alignment check at
target_munmap and later brk adjustments hit an EEXIST.

Fix by aligning the start of region to be unmapped.

Fixes: c81d1fafa6 ("linux-user: Honor elf alignment when placing images")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1913
Signed-off-by: Fabiano Rosas <farosas@suse.de>
[rth: Align load_end as well.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250213143558.10504-1-farosas@suse.de>
2025-02-18 08:29:03 -08:00
Khem Raj
34febb2831 linux-user: Do not define struct sched_attr if libc headers do
glibc 2.41+ has added [1] definitions for sched_setattr and
sched_getattr functions and struct sched_attr.  Therefore, it needs
to be checked for here as well before defining sched_attr, to avoid
a compilation failure.

Define sched_attr conditionally only when SCHED_ATTR_SIZE_VER0 is
not defined.

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=21571ca0d70302909cf72707b2a7736cf12190a0;hp=298bc488fdc047da37482f4003023cb9adef78f8

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2799
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 27a8d899c7a100fd5aa040a8b993bb257687c393)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2025-02-11 09:21:03 +03:00
Stefan Hajnoczi
ffaf7f0376 testing and gdbstub updates:
- add a check-rust test to docker builds
   - re-factor the qtest logic to be cleaner
   - fix tests to not clock_step when no timers enabled
   - roll-up log prefix into qtest_send
   - cleaner error reporting when qtest_clock_set fails
   - revert old deadlock fix now tests are updated
   - only run full set of migration tests under HW acceleration
   - support late attachment to user-mode gdbstubs
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Merge tag 'pull-10.0-testing-and-gdstub-updates-100225-1' of https://gitlab.com/stsquad/qemu into staging

testing and gdbstub updates:

  - add a check-rust test to docker builds
  - re-factor the qtest logic to be cleaner
  - fix tests to not clock_step when no timers enabled
  - roll-up log prefix into qtest_send
  - cleaner error reporting when qtest_clock_set fails
  - revert old deadlock fix now tests are updated
  - only run full set of migration tests under HW acceleration
  - support late attachment to user-mode gdbstubs

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* tag 'pull-10.0-testing-and-gdstub-updates-100225-1' of https://gitlab.com/stsquad/qemu:
  tests/tcg: Add late gdbstub attach test
  docs/user: Document the %d placeholder and suspend=n QEMU_GDB features
  gdbstub: Allow late attachment
  osdep: Introduce qemu_kill_thread()
  user: Introduce host_interrupt_signal
  user: Introduce user/signal.h
  gdbstub: Try unlinking the unix socket before binding
  gdbstub: Allow the %d placeholder in the socket path
  tests/qtest/migration: Pick smoke tests
  tests/qtest/migration: Add --full option
  Revert "util/timer: avoid deadlock when shutting down"
  tests/qtest: tighten up the checks on clock_step
  tests/qtest: rename qtest_send_prefix and roll-up into qtest_send
  tests/qtest: simplify qtest_process_inbuf
  tests/qtest: don't step clock at start of npcm7xx periodic IRQ test
  tests/qtest: don't attempt to clock_step while waiting for virtio ISR
  tests/docker: replicate the check-rust-tools-nightly CI job

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-10 13:26:17 -05:00
Ilya Leoshkevich
d156d5d1df gdbstub: Allow late attachment
Allow debugging individual processes in multi-process applications by
starting them with export QEMU_GDB=/tmp/qemu-%d.sock,suspend=n.
Currently one would have to attach to every process to ensure the app
makes progress.

In case suspend=n is not specified, the flow remains unchanged. If it
is specified, then accepting the client connection is delegated to a
thread. In the future this machinery may be reused for handling
reconnections and interruptions.

On accepting a connection, the thread schedules gdb_handlesig() on the
first CPU and wakes it up with host_interrupt_signal. Note that the
result of this gdb_handlesig() invocation is handled, as opposed to
many other existing call sites. These other call sites probably need to
be fixed separately.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20250117001542.8290-7-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-16-alex.bennee@linaro.org>
2025-02-10 13:47:59 +00:00
Ilya Leoshkevich
2b3ccf5f0d user: Introduce host_interrupt_signal
Attaching to the gdbstub of a running process requires stopping its
threads. For threads that run on a CPU, cpu_exit() is enough, but the
only way to grab attention of a thread that is stuck in a long-running
syscall is to interrupt it with a signal.

Reserve a host realtime signal for this, just like it's already done
for TARGET_SIGABRT on Linux. This may reduce the number of available
guest realtime signals by one, but this is acceptable, since there are
quite a lot of them, and it's unlikely that there are apps that need
them all.

Set signal_pending for the safe_sycall machinery to prevent invoking
the syscall. This is a lie, since we don't queue a guest signal, but
process_pending_signals() can handle the absence of pending signals.
The syscall returns with QEMU_ERESTARTSYS errno, which arranges for
the automatic restart. This is important, because it helps avoiding
disturbing poorly written guests.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20250117001542.8290-5-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-14-alex.bennee@linaro.org>
2025-02-10 13:47:59 +00:00
Ilya Leoshkevich
08916fd4b6 user: Introduce user/signal.h
gdbstub needs target_to_host_signal(), so move its declaration to a
public header.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20250117001542.8290-4-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250207153112.3939799-13-alex.bennee@linaro.org>
2025-02-10 13:47:59 +00:00
Romain Malmain
06c738f64a
fix build for new glibc (#101) 2025-02-10 11:30:30 +01:00
Khem Raj
27a8d899c7 linux-user: Do not define struct sched_attr if libc headers do
glibc 2.41+ has added [1] definitions for sched_setattr and
sched_getattr functions and struct sched_attr.  Therefore, it needs
to be checked for here as well before defining sched_attr, to avoid
a compilation failure.

Define sched_attr conditionally only when SCHED_ATTR_SIZE_VER0 is
not defined.

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=21571ca0d70302909cf72707b2a7736cf12190a0;hp=298bc488fdc047da37482f4003023cb9adef78f8

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2799
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-02-07 16:09:20 +00:00
Romain Malmain
695657e4f3
Refactoring of signal handling (#100)
* refactor signal handling for qemu usermode
2025-02-01 12:10:21 +01:00
Stefan Hajnoczi
ed734377ab linux-user: Add support for various missing netlink sockopt entries
Add missing sockopt calls and thus fix building the debian gupnp package in a chroot.
 
 This fixes debian bug report:
 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1044651
 
 Signed-off-by: Helge Deller <deller@gmx.de>
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Merge tag 'linux-user-fix-gupnp-pull-request' of https://github.com/hdeller/qemu-hppa into staging

linux-user: Add support for various missing netlink sockopt entries

Add missing sockopt calls and thus fix building the debian gupnp package in a chroot.

This fixes debian bug report:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1044651

Signed-off-by: Helge Deller <deller@gmx.de>

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* tag 'linux-user-fix-gupnp-pull-request' of https://github.com/hdeller/qemu-hppa:
  linux-user: netlink: Add missing QEMU_IFLA entries
  linux-user: netlink: add netlink neighbour emulation
  linux-user: netlink: Add emulation of IP_MULTICAST_IF
  linux-user: netlink: Add IP_PKTINFO cmsg parsing
  linux-user: Use unique error messages for cmsg parsing
  linux-user: netlink: Add missing IFA_PROTO to host_to_target_data_addr_rtattr()

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-01-24 14:43:07 -05:00
Helge Deller
3719acc273 linux-user: netlink: Add missing QEMU_IFLA entries
This fixes the following qemu warnings when building debian gupnp package:
 Unknown host QEMU_IFLA type: 61
 Unknown host QEMU_IFLA type: 58
 Unknown host QEMU_IFLA type: 59
 Unknown host QEMU_IFLA type: 60
 Unknown host QEMU_IFLA type: 32820

QEMU_IFLA type 32820 is actually NLA_NESTED | QEMU_IFLA_PROP_LIST (a nested
entry), which is why rta_type needs to be masked with NLA_TYPE_MASK.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Helge Deller
cc9a83155d linux-user: netlink: add netlink neighbour emulation
Fixes various warnings in the testsuite while building gupnp:
 gssdp-net-DEBUG: Failed to send netlink message: Operation not supported
 gupnp-context-DEBUG: Mismatch between host header and host IP (example.com, expected: 127.0.0.1)
 gupnp-context-DEBUG: Mismatch between host header and host port (80, expected 4711)
 gupnp-context-DEBUG: Mismatch between host header and host IP (192.168.1.2, expected: 127.0.0.1)
 gupnp-context-DEBUG: Mismatch between host header and host IP (fe80::01, expected: 127.0.0.1)
 gupnp-context-DEBUG: Mismatch between host header and host port (80, expected 4711)
 gupnp-context-DEBUG: Failed to parse HOST header from request: Invalid IPv6 address ?[fe80::01%1]? in URI
 gupnp-context-DEBUG: Failed to parse HOST header from request: Invalid IPv6 address ?[fe80::01%eth0]? in URI
 gupnp-context-DEBUG: Failed to parse HOST header from request: Could not parse port ?:1? in URI
 gupnp-context-DEBUG: Mismatch between host header and host IP (example.com, expected: ::1)
 gupnp-context-DEBUG: Mismatch between host header and host port (80, expected 4711)
 gupnp-context-DEBUG: Mismatch between host header and host IP (example.com, expected: ::1)
 gupnp-context-DEBUG: Mismatch between host header and host port (80, expected 4711)
 gupnp-context-DEBUG: Mismatch between host header and host IP (example.com, expected: ::1)

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Helge Deller
f65464ce6d linux-user: netlink: Add emulation of IP_MULTICAST_IF
Add IP_MULTICAST_IF and share the code with IP_ADD_MEMBERSHIP / IP_DROP_MEMBERSHIP.
Sharing the code makes sense, because the manpage of ip(7) says:

IP_MULTICAST_IF (since Linux 1.2)
      Set the local device for a multicast socket.  The argument
      for setsockopt(2) is an ip_mreqn or (since Linux 3.5)
      ip_mreq structure similar to IP_ADD_MEMBERSHIP, or an
      in_addr structure.  (The kernel determines which structure
      is being passed based on the size passed in optlen.)  For
      getsockopt(2), the argument is an in_addr structure.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Helge Deller
017fc6620f linux-user: netlink: Add IP_PKTINFO cmsg parsing
Fixes those warnings:
 Unsupported host ancillary data: 0/8

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Helge Deller
b97f8d1fa5 linux-user: Use unique error messages for cmsg parsing
Avoid using the same error message for two different code paths
as it complicates determining the one which actually triggered.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Helge Deller
5f01c60879 linux-user: netlink: Add missing IFA_PROTO to host_to_target_data_addr_rtattr()
Fix this warning:
 Unknown host IFA type: 11

While adding IFA_PROTO, convert all IFA_XXX values over to QEMU_IFA_XXX values
to avoid a build failure on Ubuntu 22.04 (kernel v5.18 which does not know
IFA_PROTO yet).

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2025-01-24 13:58:40 +01:00
Stefan Hajnoczi
32a97c5d05 tcg:
- Add TCGOP_TYPE, TCGOP_FLAGS.
   - Pass type and flags to tcg_op_supported, tcg_target_op_def.
   - Split out tcg-target-has.h and unexport from tcg.h.
   - Reorg constraint processing; constify TCGOpDef.
   - Make extract, sextract, deposit opcodes mandatory.
   - Merge ext{8,16,32}{s,u} opcodes into {s}extract.
 tcg/mips: Expand bswap unconditionally
 tcg/riscv: Use SRAIW, SRLIW for {s}extract_i64
 tcg/riscv: Use BEXTI for single-bit extractions
 tcg/sparc64: Use SRA, SRL for {s}extract_i64
 
 disas/riscv: Guard dec->cfg dereference for host disassemble
 util/cpuinfo-riscv: Detect Zbs
 accel/tcg: Call tcg_tb_insert() for one-insn TBs
 linux-user: Add missing /proc/cpuinfo fields for sparc
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Merge tag 'pull-tcg-20250117' of https://gitlab.com/rth7680/qemu into staging

tcg:
  - Add TCGOP_TYPE, TCGOP_FLAGS.
  - Pass type and flags to tcg_op_supported, tcg_target_op_def.
  - Split out tcg-target-has.h and unexport from tcg.h.
  - Reorg constraint processing; constify TCGOpDef.
  - Make extract, sextract, deposit opcodes mandatory.
  - Merge ext{8,16,32}{s,u} opcodes into {s}extract.
tcg/mips: Expand bswap unconditionally
tcg/riscv: Use SRAIW, SRLIW for {s}extract_i64
tcg/riscv: Use BEXTI for single-bit extractions
tcg/sparc64: Use SRA, SRL for {s}extract_i64

disas/riscv: Guard dec->cfg dereference for host disassemble
util/cpuinfo-riscv: Detect Zbs
accel/tcg: Call tcg_tb_insert() for one-insn TBs
linux-user: Add missing /proc/cpuinfo fields for sparc

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# gpg: Signature made Fri 17 Jan 2025 13:19:33 EST
# 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-20250117' of https://gitlab.com/rth7680/qemu: (68 commits)
  softfloat: Constify helpers returning float_status field
  accel/tcg: Call tcg_tb_insert() for one-insn TBs
  tcg: Document tb_lookup() and tcg_tb_lookup()
  linux-user: Add missing /proc/cpuinfo fields for sparc
  tcg/riscv: Use BEXTI for single-bit extractions
  util/cpuinfo-riscv: Detect Zbs
  tcg: Remove TCG_TARGET_HAS_deposit_{i32,i64}
  tcg: Remove TCG_TARGET_HAS_{s}extract_{i32,i64}
  tcg/tci: Remove assertions for deposit and extract
  tcg/tci: Provide TCG_TARGET_{s}extract_valid
  tcg/sparc64: Use SRA, SRL for {s}extract_i64
  tcg/s390x: Fold the ext{8,16,32}[us] cases into {s}extract
  tcg/riscv: Use SRAIW, SRLIW for {s}extract_i64
  tcg/riscv64: Fold the ext{8,16,32}[us] cases into {s}extract
  tcg/ppc: Fold the ext{8,16,32}[us] cases into {s}extract
  tcg/mips: Fold the ext{8,16,32}[us] cases into {s}extract
  tcg/loongarch64: Fold the ext{8,16,32}[us] cases into {s}extract
  tcg/arm: Add full [US]XT[BH] into {s}extract
  tcg/aarch64: Expand extract with offset 0 with andi
  tcg/aarch64: Provide TCG_TARGET_{s}extract_valid
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-01-21 08:28:33 -05:00
Alex Bennée
c0e6b8b798 system: propagate Error to gdbserver_start (and other device setups)
This started as a clean-up to properly pass a Error handler to the
gdbserver_start so we could do the right thing for command line and
HMP invocations.

Now that we have cleaned up foreach_device_config_or_exit() in earlier
patches we can further simplify by it by passing &error_fatal instead
of checking the return value. Having a return value is still useful
for HMP though so tweak the return to use a simple bool instead.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-11-alex.bennee@linaro.org>
2025-01-17 10:44:25 +00:00
Helge Deller
8095f652f2 linux-user: Add missing /proc/cpuinfo fields for sparc
Add some missing fields which may be parsed by userspace applications.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <Z39B1wzNNpndmOxZ@p100>
2025-01-16 20:57:17 -08:00
Philippe Mathieu-Daudé
68df8c8dba accel/tcg: Include missing 'exec/translation-block.h' header
TB compile flags, tb_page_addr_t type, tb_cflags() and few
other methods are defined in "exec/translation-block.h".

All these files don't include "exec/translation-block.h" but
include "exec/exec-all.h" which include it. Explicitly include
"exec/translation-block.h" to be able to remove it from
"exec/exec-all.h" later when it won't be necessary. Otherwise
we'd get errors such:

  accel/tcg/internal-target.h:59:20: error: a parameter list without types is only allowed in a function definition
     59 | void tb_lock_page0(tb_page_addr_t);
        |                    ^
  accel/tcg/tb-hash.h:64:23: error: unknown type name 'tb_page_addr_t'
     64 | uint32_t tb_hash_func(tb_page_addr_t phys_pc, vaddr pc,
        |                       ^
  accel/tcg/tcg-accel-ops.c:62:36: error: use of undeclared identifier 'CF_CLUSTER_SHIFT'
     62 |     cflags = cpu->cluster_index << CF_CLUSTER_SHIFT;
        |                                    ^
  accel/tcg/watchpoint.c:102:47: error: use of undeclared identifier 'CF_NOIRQ'
    102 |                     cpu->cflags_next_tb = 1 | CF_NOIRQ | curr_cflags(cpu);
        |                                               ^
  target/i386/helper.c:536:28: error: use of undeclared identifier 'CF_PCREL'
    536 |     if (tcg_cflags_has(cs, CF_PCREL)) {
        |                            ^
  target/rx/cpu.c:51:21: error: incomplete definition of type 'struct TranslationBlock'
     51 |     cpu->env.pc = tb->pc;
        |                   ~~^
  system/physmem.c:2977:9: error: call to undeclared function 'tb_invalidate_phys_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   2977 |         tb_invalidate_phys_range(addr, addr + length - 1);
        |         ^
  plugins/api.c:96:12: error: call to undeclared function 'tb_cflags'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     96 |     return tb_cflags(tcg_ctx->gen_tb) & CF_MEMI_ONLY;
        |            ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241114011310.3615-5-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
8865049bab accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'
The TranslationBlock flags are defined in 'exec/translation-block.h'.
tcg_cflags_has/set() use them, it is more logical to declare them in
the same place. Move them there too.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212144430.66224-2-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
1bf0d6e476 user: Move various declarations out of 'exec/exec-all.h'
Move various declarations related to user emulation
from "exec/exec-all.h" to "user/cpu_loop.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-19-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
166a4b6e43 user: Declare cpu_loop() once in 'user/cpu_loop.h'
Declare cpu_loop() once in "user/cpu_loop.h".
bsd-user gets the G_NORETURN attribute.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-18-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
b74c898158 user: Move 'linux-user/cpu_loop-common.h' -> 'user/cpu_loop.h'
"linux-user/cpu_loop-common.h" is generic enough to be used by
bsd-user, so rename it as "user/cpu_loop.h".

Mechanical change running:

  $ sed -i -e 's,cpu_loop-common.h,user/cpu_loop.h,' \
                $(git grep -l cpu_loop-common.h)

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-17-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
fb5c28e195 user: Forward declare target_cpu_copy_regs structure
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-16-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
f47dcf519d accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (4/4)
Move declarations related to page protection under user
emulation from "exec/cpu-all.h" to "user/page-protection.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-15-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Philippe Mathieu-Daudé
187b7ca96a accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (3/4)
Move declarations related to page protection under user
emulation from "exec/cpu-all.h" to "user/page-protection.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241212185341.2857-14-philmd@linaro.org>
2024-12-20 17:44:57 +01:00