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Andrea Bolognani 1887cf2368 binfmt: Add --ignore-family option 
Until now, the script has worked under the assumption that a
host CPU can run binaries targeting any CPU in the same family.
That's a fair enough assumption when it comes to running i386
binaries on x86_64, but it doesn't quite apply in the general
case.

For example, while riscv64 CPUs could theoretically run riscv32
applications natively, in practice there exist few (if any?)
CPUs that implement the necessary silicon; moreover, even if you
had one such CPU, your host OS would most likely not have
enabled the necessary kernel bits.

This new option gives distro packagers the ability to opt out of
the assumption, likely on a per-architecture basis, and make
things work out of the box for a larger fraction of their user
base.

As an interesting side effect, this makes it possible to enable
execution of 64-bit binaries on 32-bit CPUs of the same family,
which is a perfectly valid use case that apparently hadn't been
considered until now.

Link: https://src.fedoraproject.org/rpms/qemu/pull-request/72
Thanks: David Abdurachmanov <davidlt@rivosinc.com>
Thanks: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-ID: <20250127182924.103510-4-abologna@redhat.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-03-04 15:42:54 +10:00
..
ci dockerfiles: install bindgen from cargo on Ubuntu 22.04 2024-11-06 17:12:17 +01:00
coccinelle hw: Define new device_class_set_legacy_reset() 2024-09-13 15:31:44 +01:00
codeconverter include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
coverage scripts/coverage: initial coverage comparison script 2023-04-04 15:16:29 +01:00
coverity-scan include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
kvm target/i386: enumerate VMX nested-exception support 2024-06-08 10:33:38 +02:00
modules
oss-fuzz fuzz: disable leak-detection for oss-fuzz builds 2024-05-29 12:41:56 +02:00
performance scripts/: spelling fixes 2023-09-08 13:08:52 +03:00
qapi qapi: expose all schema features to code 2025-02-10 15:45:04 +01:00
qemu-guest-agent qemu-ga: Optimize freeze-hook script logic of logging error 2025-01-06 12:57:13 +02:00
qemugdb scripts/qemu-gdb: Support coroutine dumps in coredumps 2025-02-06 13:59:00 +01:00
qmp python: rename qemu.aqmp to qemu.qmp 2022-04-21 11:01:00 -04:00
rust rust: add --check-cfg test to rustc arguments 2025-01-10 23:34:41 +01:00
simplebench scripts/: spelling fixes 2023-09-08 13:08:52 +03:00
tracetool tracetool: Forbid newline character in event format 2024-06-10 13:05:27 -04:00
analyse-9p-simpletrace.py
analyse-locks-simpletrace.py scripts/analyse-locks-simpletrace.py: changed iteritems() to items() 2023-09-26 12:28:51 -04:00
analyze-inclusions exec: Rename NEED_CPU_H -> COMPILING_PER_TARGET 2024-04-26 09:49:51 +02:00
analyze-migration.py migration: Fix arrays of pointers in JSON writer 2025-01-09 17:39:54 -03:00
archive-source.sh rust: subprojects: add libc crate 2025-02-25 10:49:23 +01:00
block-coroutine-wrapper.py block-coroutine-wrapper: use qemu_get_current_aio_context() 2023-12-21 22:49:28 +01:00
check_sparse.py
checkpatch.pl scripts/checkpatch: Fix a typo 2025-03-04 09:30:26 +08:00
clean-header-guards.pl disas: Remove libvixl disassembler 2022-07-05 10:15:49 +02:00
clean-includes include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
cleanup-trace-events.pl
cocci-macro-file.h win32: remove usage of attribute gcc_struct 2025-01-17 10:45:13 +00:00
compare-machine-types.py scripts: add script to compare compatibility properties 2024-04-25 10:12:48 +02:00
cpu-x86-uarch-abi.py scripts: drop comment about autogenerated CPU API file 2024-02-09 12:48:07 +00:00
decodetree.py tests/decode: Suppress "error: " string for expected-failure tests 2023-07-25 10:56:52 +01:00
device-crash-test python/qemu: rename command() to cmd() 2023-10-12 14:21:43 -04:00
disas-objdump.pl
dump-guest-memory.py
entitlement.sh
extract-vsssdk-headers
feature_to_c.py gdbstub: Add members to identify registers to GDBFeature 2024-02-28 09:10:11 +00:00
fix-multiline-comments.sh
get_maintainer.pl scripts/get_maintainer.pl: don't print parentheses 2023-10-17 15:20:53 +02:00
git-submodule.sh scripts/git-submodule.sh: Don't rely on non-POSIX 'read' behaviour 2023-07-25 10:56:51 +01:00
git.orderfile scripts/git.orderfile: Display MAINTAINERS changes first 2023-01-13 16:22:57 +01:00
hxtool
kernel-doc license: Update deprecated SPDX tag GPL-2.0 to GPL-2.0-only 2024-09-20 10:11:59 +03:00
make-config-poison.sh exec/poison: Do not poison CONFIG_SOFTMMU 2023-06-05 12:04:29 -07:00
make-release rust: subprojects: add libc crate 2025-02-25 10:49:23 +01:00
meson-buildoptions.py meson-buildoptions: document the data at the top 2023-10-18 10:01:02 +02:00
meson-buildoptions.sh pvg: add option to configure it out 2025-02-25 16:18:12 +01:00
meson.build scripts: add a XML preprocessor script 2023-06-27 17:08:56 +02:00
minikconf.py minikconf: print error entirely on stderr 2024-10-03 19:33:55 +02:00
modinfo-collect.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
modinfo-generate.py scripts: make sure scripts are invoked via $(PYTHON) 2023-05-19 20:40:29 +02:00
mtest2make.py tests/qtest: add TIMEOUT_MULTIPLIER 2024-12-12 10:25:38 -03:00
nsis.py scripts/nsis.py: Run dependency check for each DLL file only once 2025-01-17 10:46:15 +00:00
probe-gdb-support.py testing: Enhance gdb probe script 2024-10-24 09:56:45 +01:00
python_qmp_updater.py scripts: add python_qmp_updater.py 2023-10-12 14:21:44 -04:00
qapi-gen.py
qemu-binfmt-conf.sh binfmt: Add --ignore-family option 2025-03-04 15:42:54 +10:00
qemu-gdb.py scripts/qemu-gdb: Always do full stack dump for python errors 2025-02-06 13:59:00 +01:00
qemu-plugin-symbols.py plugins: detect qemu plugin API symbols from header 2024-11-25 10:27:43 +00:00
qemu-stamp.py meson, configure: move --with-pkgversion, CONFIG_STAMP to meson 2022-05-07 07:46:58 +02:00
qemu-trace-stap scripts: improve error from qemu-trace-stap on missing 'stap' 2025-02-12 10:03:18 -05:00
qemu-version.sh
qom-cast-macro-clean-cocci-gen.py licenses: Remove SPDX tags not being license identifier for Linaro 2025-01-30 13:01:22 +03:00
refresh-pxe-roms.sh
render_block_graph.py python/qemu: rename command() to cmd() 2023-10-12 14:21:43 -04:00
replay-dump.py tests/avocado: excercise scripts/replay-dump.py in replay tests 2024-08-16 14:04:19 +01:00
shaderinclude.py build-sys: fix crlf-ending C code 2023-02-02 10:44:23 +00:00
signrom.py
simpletrace.py simpletrace: added simplified Analyzer2 class 2023-09-26 12:28:51 -04:00
symlink-install-tree.py scripts/symlink-install-tree.py: Fix MESONINTROSPECT parsing 2024-10-29 15:04:46 +00:00
tracetool.py tracetool: remove redundant --target-type / --target-name args 2024-03-12 14:52:07 -04:00
u2f-setup-gen.py
undefsym.py
update-linux-headers.sh hw/acpi: Add vmclock device 2025-01-15 17:43:24 -05:00
update-mips-syscall-args.sh
update-syscalltbl.sh linux-user,loongarch: move to syscalltbl file 2024-09-22 09:30:18 +02:00
userfaultfd-wrlat.py
vmstate-static-checker.py vmstate-static-checker: Recognize "num" field 2023-04-27 10:18:26 +02:00
xen-detect.c xen: Drop support for Xen versions below 4.7.1 2023-06-07 15:07:10 +01:00
xml-preprocess-test.py scripts: add a XML preprocessor script 2023-06-27 17:08:56 +02:00
xml-preprocess.py scripts/xml-preprocess: Make sure this script is invoked via the right Python 2023-10-12 00:37:39 +03:00