Merge tag 'exec-20241220' of https://github.com/philmd/qemu into staging

Accel & Exec patch queue

- Ignore writes to CNTP_CTL_EL0 on HVF ARM (Alexander)
- Add '-d invalid_mem' logging option (Zolta

Merge tag 'exec-20241220' of https://github.com/philmd/qemu into staging

Accel & Exec patch queue

- Ignore writes to CNTP_CTL_EL0 on HVF ARM (Alexander)
- Add '-d invalid_mem' logging option (Zoltan)
- Create QOM containers explicitly (Peter)
- Rename sysemu/ -> system/ (Philippe)
- Re-orderning of include/exec/ headers (Philippe)
Move a lot of declarations from these legacy mixed bag headers:
. "exec/cpu-all.h"
. "exec/cpu-common.h"
. "exec/cpu-defs.h"
. "exec/exec-all.h"
. "exec/translate-all"
to these more specific ones:
. "exec/page-protection.h"
. "exec/translation-block.h"
. "user/cpu_loop.h"
. "user/guest-host.h"
. "user/page-protection.h"

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# gpg: Signature made Fri 20 Dec 2024 11:45:20 EST
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE

* tag 'exec-20241220' of https://github.com/philmd/qemu: (59 commits)
util/qemu-timer: fix indentation
meson: Do not define CONFIG_DEVICES on user emulation
system/accel-ops: Remove unnecessary 'exec/cpu-common.h' header
system/numa: Remove unnecessary 'exec/cpu-common.h' header
hw/xen: Remove unnecessary 'exec/cpu-common.h' header
target/mips: Drop left-over comment about Jazz machine
target/mips: Remove tswap() calls in semihosting uhi_fstat_cb()
target/xtensa: Remove tswap() calls in semihosting simcall() helper
accel/tcg: Un-inline translator_is_same_page()
accel/tcg: Include missing 'exec/translation-block.h' header
accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h'
accel/tcg: Restrict curr_cflags() declaration to 'internal-common.h'
qemu/coroutine: Include missing 'qemu/atomic.h' header
exec/translation-block: Include missing 'qemu/atomic.h' header
accel/tcg: Declare cpu_loop_exit_requested() in 'exec/cpu-common.h'
exec/cpu-all: Include 'cpu.h' earlier so MMU_USER_IDX is always defined
target/sparc: Move sparc_restore_state_to_opc() to cpu.c
target/sparc: Uninline cpu_get_tb_cpu_state()
target/loongarch: Declare loongarch_cpu_dump_state() locally
user: Move various declarations out of 'exec/exec-all.h'
...

Conflicts:
hw/char/riscv_htif.c
hw/intc/riscv_aplic.c
target/s390x/cpu.c

Apply sysemu header path changes to not in the pull request.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

show more ...

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>
Re

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>

show more ...

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* kvm: reuse per-vcpu stats fd to avoid vcpu interruption
* Validate cluster and NUMA node boundary on ARM and RISC-V
* vario

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* kvm: reuse per-vcpu stats fd to avoid vcpu interruption
* Validate cluster and NUMA node boundary on ARM and RISC-V
* various small TCG features from newer processors
* Remove dubious 'event_notifier-posix.c' include
* fix git-submodule.sh in releases

# -----BEGIN PGP SIGNATURE-----
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# iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmSZS0IUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroN+tgf/axJdG9NXKCyXgc0vzjKVhSR4Y+tC
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# =WHE2
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 26 Jun 2023 10:24:34 AM CEST
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
git-submodule.sh: allow running in validate mode without previous update
target/i386: implement SYSCALL/SYSRET in 32-bit emulators
target/i386: implement RDPID in TCG
target/i386: sysret and sysexit are privileged
target/i386: AMD only supports SYSENTER/SYSEXIT in 32-bit mode
target/i386: Intel only supports SYSCALL/SYSRET in long mode
target/i386: TCG supports WBNOINVD
target/i386: TCG supports XSAVEERPTR
target/i386: do not accept RDSEED if CPUID bit absent
target/i386: TCG supports RDSEED
target/i386: TCG supports 3DNow! prefetch(w)
target/i386: fix INVD vmexit
kvm: reuse per-vcpu stats fd to avoid vcpu interruption
hw/riscv: Validate cluster and NUMA node boundary
hw/arm: Validate cluster and NUMA node boundary
numa: Validate cluster and NUMA node boundary if required
hw/remote/proxy: Remove dubious 'event_notifier-posix.c' include
build: further refine build.ninja rules

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

target/i386: implement SYSCALL/SYSRET in 32-bit emulators

AMD supports both 32-bit and 64-bit SYSCALL/SYSRET, but the TCG only
exposes it for 64-bit targets. For system emulation just reuse the
hel

target/i386: implement SYSCALL/SYSRET in 32-bit emulators

AMD supports both 32-bit and 64-bit SYSCALL/SYSRET, but the TCG only
exposes it for 64-bit targets. For system emulation just reuse the
helper; for user-mode emulation the ABI is the same as "int $80".

The BSDs does not support any fast system call mechanism in 32-bit
mode so add to bsd-user the same stub that FreeBSD has for 64-bit
compatibility mode.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

show more ...

Merge tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru into staging

Miscellaneous patches patches for 2022-05-11

# -----BEGIN PGP SIGNATURE-----
#
# iQJGBAABCAAwFiEENUvIs9frKmtoZ05fOHC0AO

Merge tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru into staging

Miscellaneous patches patches for 2022-05-11

# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Wed 11 May 2022 07:58:10 AM PDT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [undefined]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru:
Clean up decorations and whitespace around header guards
Normalize header guard symbol definition
Clean up ill-advised or unusual header guards
Clean up header guards that don't match their file name

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Clean up ill-advised or unusual header guards

Leading underscores are ill-advised because such identifiers are
reserved. Trailing underscores are merely ugly. Strip both.

Our header guards common

Clean up ill-advised or unusual header guards

Leading underscores are ill-advised because such identifiers are
reserved. Trailing underscores are merely ugly. Strip both.

Our header guards commonly end in _H. Normalize the exceptions.

Macros should be ALL_CAPS. Normalize the exception.

Done with scripts/clean-header-guards.pl.

include/hw/xen/interface/ and tools/virtiofsd/ left alone, because
these were imported from Xen and libfuse respectively.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220506134911.2856099-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-preen-2022q1-pull-request' into staging

bsd-user: Prepare for future upstream of system calls.

This series of patches does three things.

Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-preen-2022q1-pull-request' into staging

bsd-user: Prepare for future upstream of system calls.

This series of patches does three things.

First, it starts to give up on the idea that you can run FooBSD binaries on
BarBSD. They are too different to make that happen any time soon, though I've
kept the support for Net/OpenBSD, even though they haven't built. We'll need a
lot of work to make that happen, though, and I need to simplify to get things
upstream.

Second, it starts to move some of the ifdef trees into target.h.

Third, it starts to upstream bsd-file.h, but the remainder of the file in the
bsd-user fork had some issues that will be resolved before next quarter's
update.

# gpg: Signature made Mon 28 Feb 2022 18:11:47 GMT
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/bsd-user-preen-2022q1-pull-request:
bsd-user: Add safe system call macros
bsd-user: Define target_arg64
bsd-user: introduce target.h
bsd-user/bsd-file.h: Implementation details for the filesystem calls
bsd-user/freebsd/os-syscall.c: Add get_errno and host_to_target_errno
bsd-user/sycall.c: Now obsolete, remove
bsd-user: Move system call building to os-syscall.c
bsd-user/freebsd/os-syscall.c: Move syscall processing here
bsd-user: Remove bsd_type
bsd-user/x86_64/target_arch_thread.h: Assume a FreeBSD target
bsd-user/arm/target_arch_thread.h: Assume a FreeBSD target
bsd-user/arm/target_arch_cpu.h: Only support FreeBSD sys calls
bsd-user/i386/target_arch_cpu.h: Remove openbsd syscall
bsd-user/x86_64/target_arch_cpu.h: Remove openbsd syscall
bsd-user/x86_64/target_arch_cpu.h: int $80 never was a BSD system call on amd64
bsd-user/main.c: Drop syscall flavor arg -bsd

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

show more ...

bsd-user/i386/target_arch_cpu.h: Remove openbsd syscall

This doesn't build on openbsd at the moment, and this could
should arguably be in bsd-user/*bsd/i386 somewhere. Until
we refactor to support O

bsd-user/i386/target_arch_cpu.h: Remove openbsd syscall

This doesn't build on openbsd at the moment, and this could
should arguably be in bsd-user/*bsd/i386 somewhere. Until
we refactor to support OpenBSD/NetBSD again, drop it here.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request' into staging

bsd-user: upstream signal implementation

Upstream the bsd-user fork signal implementation, for the m

Merge remote-tracking branch 'remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request' into staging

bsd-user: upstream signal implementation

Upstream the bsd-user fork signal implementation, for the most part. This
series of commits represents nearly all of the infrastructure that surround
signals, except the actual system call glue (that was also reworked in the
fork and needs its own series). In addition, this adds the sigsegv and sigbus
code to arm. Even in the fork, we don't have good x86 signal implementation,
so there's little to upstream for that at the moment.

bsd-user's signal implementation is similar to linux-user's. The full context
can be found in the bsd-user's fork's 'blitz branch' at
https://github.com/qemu-bsd-user/qemu-bsd-user/tree/blitz which shows how these
are used to implement various system calls. Since this was built from
linux-user's stack stuff, evolved for BSD with the passage of a few years, it
no-doubt missed some bug fixes from linux-user (though nothing obvious stood out
in the quick comparison I made). After the first round of reviews, many of these
improvements have been incorporated.

Patchew history: https://patchew.org/QEMU/20220125012947.14974-1-imp@bsdimp.com/

# gpg: Signature made Mon 31 Jan 2022 19:55:51 GMT
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/bsd-user-arm-2022q1-pull-request: (40 commits)
bsd-user/freebsd/target_os_ucontext.h: Prefer env as arg name for CPUArchState args
bsd-user: Rename arg name for target_cpu_reset to env
MAINTAINERS: Add tests/vm/*bsd to the list to get reviews on
bsd-user/signal.c: do_sigaltstack
bsd-user/signal.c: implement do_sigaction
bsd-user/signal.c: implement do_sigreturn
bsd-user/signal.c: process_pending_signals
bsd-user/signal.c: tswap_siginfo
bsd-user/signal.c: handle_pending_signal
bsd-user/signal.c: setup_frame
bsd-user/signal.c: sigset manipulation routines.
bsd-user/signal.c: Fill in queue_signal
bsd-user/signal.c: Implement dump_core_and_abort
bsd-user/strace.c: print_taken_signal
bsd-user/signal.c: Implement host_signal_handler
bsd-user/signal.c: Implement rewind_if_in_safe_syscall
bsd-user/signal.c: host_to_target_siginfo_noswap
bsd-user: Add trace events for bsd-user
bsd-user: Add host signals to the build
bsd-user/host/x86_64/host-signal.h: Implement host_signal_*
...

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

show more ...

bsd-user: Rename arg name for target_cpu_reset to env

Rename the parameter name for target_cpu_reset's CPUArchState * arg from
cpu to env.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: R

bsd-user: Rename arg name for target_cpu_reset to env

Rename the parameter name for target_cpu_reset's CPUArchState * arg from
cpu to env.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/signal-common.h: Move signal functions prototypes to here

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request' into staging

bsd-user pull request: merge dependencies for next architectures

Merge the dependencies for arm,

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request' into staging

bsd-user pull request: merge dependencies for next architectures

Merge the dependencies for arm, aarch64, and riscv64 architectures. This joins
together two patch series:

[PATCH v2 00/15] bsd-user: misc cleanup for aarch64 import

Prepare for aarch64 support (the next architecture to be upstreamed). As the
aarch64 emulation is more complete, it relies on a number of different items.
In some cases, I've pulled in the full support from bsd-user fork. In other
cases I've created a simple stub (as is the case for signals, which have
independent changes pending, so I wanted to be as minimal as possible. Since
all pre-12.2 support was purged from the bsd-user fork, go ahead and remove it
here. FreeBSD 11.x goes ouft of support at the end of the month. Remove what
little multi-version support that's in upstream.

and

[PATCH v3 0/9] bsd-user mmap fixes
This series synchronizes mmap.c with the bsd-user fork. This is a mix of old bug
fixes pulled in from linux-user, as well as some newer fixes to adress bugs
found in check-tcg and recent FreeBSD developments. There are also a couple of
style commits. Updated to migrate debugging to qemu_log.

as well as a couple of minor rebase tweaks. In addition, the next two
architectures I plan on upstreaming (arm and riscv64) also have their prereqs
satisfied with this request.

v2: Remove accidental module regression in patch 7 and try again.

# gpg: Signature made Mon 18 Oct 2021 12:00:28 PM PDT
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/pull-bsd-user-20211018-pull-request: (23 commits)
bsd-user/signal: Create a dummy signal queueing function
bsd-user: Rename sigqueue to qemu_sigqueue
bsd-user/sysarch: Move to using do_freebsd_arch_sysarch interface
bsd-user: Add stop_all_tasks
bsd-user: Remove used from TaskState
bsd-user/target_os_elf: If ELF_HWCAP2 is defined, publish it
bsd-user/target_os_elf.h: Remove fallback ELF_HWCAP and reorder
bsd-user: move TARGET_MC_GET_CLEAR_RET to target_os_signal.h
bsd-user/errno_defs.h: Add internal error numbers
bsd-user: export get_errno and is_error from syscall.c
bsd-user: TARGET_RESET define is unused, remove it
bsd-user/strace.list: Remove support for FreeBSD versions older than 12.0
bsd-user/target_os-user.h: Remove support for FreeBSD older than 12.0
meson: *-user: only descend into *-user when configured
bsd-user/mmap.c: assert that target_mprotect cannot fail
bsd-user/mmap.c: Implement MAP_EXCL, required by jemalloc in head
bsd-user/mmap.c: Don't mmap fd == -1 independently from MAP_ANON flag
bsd-user/mmap.c: Convert to qemu_log logging for mmap debugging
bsd-user/mmap.c: mmap prefer MAP_ANON for BSD
bsd-user/mmap.c: mmap return ENOMEM on overflow
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user: TARGET_RESET define is unused, remove it

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bu

bsd-user: TARGET_RESET define is unused, remove it

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>

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Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20210910' into staging

This series of patches gets me to the point that I can run "Hello World" on i386
and x86_64. This is for static

Merge remote-tracking branch 'remotes/bsdimp/tags/pull-bsd-user-20210910' into staging

This series of patches gets me to the point that I can run "Hello World" on i386
and x86_64. This is for static binaries only, that are relatively small, but
it's better than the 100% instant mmap failre that is the current state of all
things bsd-user in upstream qemu. Future patch sets will refine this, add
the missing system calls, fix bugs preventing more sophisticated programms
from running and add a bunch of new architecture support.

There's three large themes in these patches, though the changes that
represent them are interrelated making it hard to separate out further.
1. Reorganization to support multiple OS and architectures (though I've only
tested FreeBSD, other BSDs might not even compile yet).
2. Diff reduction with the bsd-user fork for several files. These diffs include
changes that borrowed from linux-user as well as changes to make things work
on FreeBSD. The records keeping when this was done, however, was poor at
best, so many of the specific borrowings are going unacknowledged here, apart
from this general ack. These diffs also include some minor code shuffling.
Some of the changes are done specifically to make it easier to rebase
the bsd-user fork's changes when these land in the tree (a number of changes
have been pushed there to make this more possible).
3. Filling in the missing pieces to make things work. There's many changes to
elfload to make it load things in the right places, to find the interpreter
better, etc. There's changes to mmap.c to make the mappings work better and
there's changes to main.c that were inspired, at least, by now-ancient changes
to linux-user's main.c.

I ran checkpatch.pl on this, and there's 350-odd errors it identifies (the vast
majoirty come from BSD's fetish for tabs), so there will need to be a V2 to fix
this at the very least. In addition, the change set is big (about +~4.5k/-~2.5k
lines), so I anticipate some iteration as well just based on its sheer
size. I've tried to keep each set small to make it easy to review in isolation,
but I've also allowed some interrelated ones to get a little bigger than I'd
normally like. I've not done the customary documentation of the expected
checkpatch.pl output because it is large, and because I wanted to get review
of the other parts rolling to get this project unstuck. Future versions of the
patch will document the expected output.

In addition, I noticed a number of places where I could modernize to make the
code match things like linux-user better. I've resisted the urge to do these at
this time, since it would complicate merging the other ~30k lines of diff that
remains after this batch. Future batches should generally be smaller once this
one has landed since they are, by and large, either a bunch of new files to
support armv7, aarch64, riscv64, mips, mipsel, mips64, ppc, ppc64 and ppc64le,
or are adding system calls, which can be done individually or small groups. I've
removed sparc and sparc64 support as they've been removed from FreeBSD and
have been near totally busted for years.

Stacey Son did the bulk of this work originally, but since I had to move things
around so much and/or retool that work in non-trivial ways, I've kept myself as
author, and added his signed-off-by line. I'm unsure of the qemu standard
practice for this, but am happy to learn if this is too far outside its current
mainstream. For a while Sean Bruno did the merges from upstream, and he's
credited using his signed-off-by in appropriate places, though for this patch
set there's only a few. I've tried to ensure that others who have work in
individual patches that I've aggregated together also are reflected in their
signed-off-by. Given the chaotic stat of the upstream repo for its early
history, this may be the best that can be reconstructed at this late date. Most
of these files are 'foundational' so have existed from the earliest days when
record keeping wasn't quite what I'd wish for in hindsight. There was only
really one change that I could easily cherry-pick (Colin's), so I did that.

# gpg: Signature made Fri 10 Sep 2021 21:24:08 BST
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* remotes/bsdimp/tags/pull-bsd-user-20210910: (42 commits)
bsd-user: Update mapping to handle reserved and starting conditions
bsd-user: Add '-0 argv0' option to bsd-user/main.c
bsd-user: Implement interlock for atomic operations
bsd-user: move gemu_log to later in the file
bsd-user: Refactor load_elf_sections and is_target_elf_binary
bsd-user: elfload.c style catch up patch
bsd-user: add stubbed out core dump support
bsd-user: Add target_os_user.h to capture the user/kernel structures
bsd-user: Add target_arch_reg to describe a target's register set
bsd-user: update debugging in mmap.c
bsd-user: Rewrite target system call definintion glue
bsd-user: Remove dead #ifdefs from elfload.c
bsd-user: elf cleanup
bsd-user: Add architecture specific signal tramp code
bsd-user: Move stack initializtion into a per-os file.
bsd-user: Implement --seed and initialize random state
bsd-user: *BSD specific siginfo defintions
bsd-user: Add system independent stack, data and text limiting
bsd-user: Create target specific vmparam.h
bsd-user: define max args in terms of pages
...

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

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bsd-user: Move per-cpu code into target_arch_cpu.h

Move cpu_loop() into target_cpu_loop(), and put that in
target_arch_cpu.h for each architecture.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Sign

bsd-user: Move per-cpu code into target_arch_cpu.h

Move cpu_loop() into target_cpu_loop(), and put that in
target_arch_cpu.h for each architecture.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

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