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* linux-user: Move target_cpu_copy_regs decl to qemu.hRichard Henderson2025-08-281-4/+0
| | | | | | | | The function is not used by bsd-user, so placement within include/user/cpu_loop.h is not ideal. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* qemu: Declare all load/store helper in 'qemu/bswap.h'Philippe Mathieu-Daudé2025-07-151-1/+0
| | | | | | | | | | | | Restrict "exec/tswap.h" to the tswap*() methods, move the load/store helpers with the other ones declared in "qemu/bswap.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Message-Id: <20250708215320.70426-8-philmd@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* accel/tcg: Remove TARGET_PAGE_DATA_SIZERichard Henderson2025-05-051-3/+5
| | | | | | | | | | | | | | This macro is used by only one target, and even then under unusual conditions -- AArch64 with mmap's PROT_MTE flag. Since page size for aarch64-linux-user is variable, the per-page data size is also variable. Since page_reset_target_data via target_munmap does not have ready access to CPUState, simply pass in the size from the first allocation and remember that. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Move TARGET_TAGGED_ADDRESSES to TCGCPUOps.untagged_addrRichard Henderson2025-05-051-3/+5
| | | | | Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* include/user: Use vaddr in guest-host.hRichard Henderson2025-05-051-7/+7
| | | | | | | Replace abi_ptr and abi_ulong with vaddr. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* include/user: Convert GUEST_ADDR_MAX to a variableRichard Henderson2025-05-051-20/+7
| | | | | | | | Remove GUEST_ADDR_MAX and add guest_addr_max. Initialize it in *-user/main.c, after reserved_va. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Use vaddr in cpu_loop.hRichard Henderson2025-05-051-7/+5
| | | | | | | Use vaddr instead of abi_ptr or target_ulong for a guest address. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Use vaddr in user/page-protection.hRichard Henderson2025-04-301-10/+7
| | | | | | | Reviewed-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Use vaddr for walk_memory_regions callbackRichard Henderson2025-04-301-3/+2
| | | | | | | | | | | Use vaddr instead of target_ulong. At the same time, use int instead of unsigned long for flags, to match page_set_flags(). Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Add CPUState argument to page_unprotectRichard Henderson2025-04-301-1/+1
| | | | | | | | | In the next patch, page_unprotect will need to pass the CPUState to tb_invalidate_phys_page_unwind. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* accel/tcg: Remove page_protectRichard Henderson2025-04-231-1/+0
| | | | | | | | | Merge the user-only page_protect function with the user-only implementation of tb_lock_page0. This avoids pulling page-protection.h into tb-internal.h. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* user: Extract common MMAP API to 'user/mmap.h'Philippe Mathieu-Daudé2025-03-091-0/+32
| | | | | | | | | | | | | 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>
* user: Introduce host_interrupt_signalIlya Leoshkevich2025-02-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* user: Introduce user/signal.hIlya Leoshkevich2025-02-101-0/+23
| | | | | | | | | | | | 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>
* user: Move various declarations out of 'exec/exec-all.h'Philippe Mathieu-Daudé2024-12-201-0/+54
| | | | | | | | | | 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>
* user: Declare cpu_loop() once in 'user/cpu_loop.h'Philippe Mathieu-Daudé2024-12-201-0/+2
| | | | | | | | | | 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>
* user: Move 'linux-user/cpu_loop-common.h' -> 'user/cpu_loop.h'Philippe Mathieu-Daudé2024-12-201-0/+34
| | | | | | | | | | | | | | | "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>
* accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (4/4)Philippe Mathieu-Daudé2024-12-201-0/+2
| | | | | | | | | | 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>
* accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (3/4)Philippe Mathieu-Daudé2024-12-201-0/+12
| | | | | | | | | | 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>
* accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (2/4)Philippe Mathieu-Daudé2024-12-201-0/+57
| | | | | | | | | | 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: <20241212185341.2857-13-philmd@linaro.org>
* accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (1/4)Philippe Mathieu-Daudé2024-12-201-0/+8
| | | | | | | | | | 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: <20241212185341.2857-12-philmd@linaro.org>
* accel/tcg: Move page_[un]protect() to 'user/page-protection.h'Philippe Mathieu-Daudé2024-12-201-0/+20
| | | | | | | 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: <20241212185341.2857-7-philmd@linaro.org>
* user: Introduce 'user/guest-host.h' headerPhilippe Mathieu-Daudé2024-12-201-0/+87
| | | | | | | | | | Extract all declarations related to 'guest from/to host' address translation to a new "user/guest-host.h" header. 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: <20241212185341.2857-2-philmd@linaro.org>
* linux-user: Remove support for CRIS targetPhilippe Mathieu-Daudé2024-09-131-7/+0
| | | | | | | | | | | | | | | | As per the deprecation notice in commit c7bbef4023: The CRIS architecture was pulled from Linux in 4.17 and the compiler is no longer packaged in any distro making it harder to run the `check-tcg` tests. Unless we can improve the testing situation there is a chance the code will bitrot without anyone noticing. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Edgar E. Iglesias <edgar.iglesias@amd.com> Message-ID: <20240904143603.52934-5-philmd@linaro.org>
* user: Move 'thunk.h' from 'exec/user' to 'user'Philippe Mathieu-Daudé2024-05-031-0/+213
| | | | | | | | Keep all user emulation headers under the same user/ directory. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240428221450.26460-2-philmd@linaro.org>
* user: Move 'abitypes.h' from 'exec/user' to 'user'Philippe Mathieu-Daudé2024-05-032-1/+88
| | | | | | | | Keep all user emulation headers under the same user/ directory. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240503125202.35667-1-philmd@linaro.org>
* exec: Restrict inclusion of 'user/guest-base.h'Philippe Mathieu-Daudé2024-04-261-0/+6
| | | | | | | | | | | | | | | | Declare 'have_guest_base' in "user/guest-base.h". Very few files require this header, so explicitly include it there instead of "exec/cpu-all.h" which is used in many source files. Assert this user-specific header is only included from user emulation. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231211212003.21686-23-philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng>
* exec: Rename 'exec/user/guest-base.h' as 'user/guest-base.h'Philippe Mathieu-Daudé2024-04-261-0/+12
| | | | | | | | | The include/user/ directory contains the user-emulation specific headers. Move guest-base.h there too. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Message-Id: <20240418192525.97451-15-philmd@linaro.org>
* exec: Move [b]tswapl() declarations to 'exec/user/tswap-target.h'Philippe Mathieu-Daudé2024-04-261-0/+22
| | | | | | | | | | | tswapl() and bswaptls() are target-dependent and only used by user emulation. Move their definitions to a new header: "exec/user/tswap-target.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Anton Johansson <anjo@rev.ng> Message-Id: <20231212123401.37493-17-philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
* {linux,bsd}-user: Introduce get_task_state()Ilya Leoshkevich2024-03-061-1/+1
| | | | | | | | | | | | | | A CPU's TaskState is stored in the CPUState's void *opaque field, accessing which is somewhat awkward due to having to use a cast. Introduce a wrapper and use it everywhere. Suggested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240219141628.246823-3-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>
* gdbstub: Add syscall entry/return hooksIlya Leoshkevich2024-02-091-2/+5
| | | | | | | | | | | The upcoming syscall catchpoint support needs to get control on syscall entry and return. Provide the necessary hooks for that, which are no-ops for now. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20240202152506.279476-4-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240207163812.3231697-13-alex.bennee@linaro.org>
* bulk: Do not declare function prototypes using 'extern' keywordPhilippe Mathieu-Daudé2023-08-311-2/+2
| | | | | | | | | | | | | | | | By default, C function prototypes declared in headers are visible, so there is no need to declare them as 'extern' functions. Remove this redundancy in a single bulk commit; do not modify: - meson.build (used to check function availability at runtime) - pc-bios/ - libdecnumber/ - tests/ - *.c Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20230605175647.88395-5-philmd@linaro.org>
* accel/tcg: spelling fixesMichael Tokarev2023-08-311-1/+1
| | | | | | | | Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Message-ID: <20230823065335.1919380-18-mjt@tls.msk.ru> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20230823065335.1919380-19-mjt@tls.msk.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* *-user: remove the guest_user_syscall tracepointsAlex Bennée2023-06-011-4/+0
| | | | | | | | | | | | | | | | | | This is pure duplication now. Both bsd-user and linux-user have builtin strace support and we can also track syscalls via the plugins system. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20230526165401.574474-2-alex.bennee@linaro.org Message-Id: <20230524133952.3971948-2-alex.bennee@linaro.org> [Remove unused variable in do_freebsd_syscall() reported by Richard Henderson. --Stefan] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* *: Add missing includes of qemu/plugin.hRichard Henderson2023-03-221-0/+1
| | | | | | | | | | | | | This had been pulled in from hw/core/cpu.h, but that will be removed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230310195252.210956-6-richard.henderson@linaro.org> [AJB: also syscall-trace.h] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230315174331.2959-16-alex.bennee@linaro.org> Reviewed-by: Emilio Cota <cota@braap.org>
* include: Include headers where neededMarkus Armbruster2023-01-081-0/+1
| | | | | | | | | | | | A number of headers neglect to include everything they need. They compile only if the headers they need are already included from elsewhere. Fix that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20221222120813.727830-3-armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* misc: fix commonly doubled up wordsDaniel P. Berrangé2022-08-011-1/+1
| | | | | | | Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220707163720.1421716-5-berrange@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
* Clean up decorations and whitespace around header guardsMarkus Armbruster2022-05-111-1/+1
| | | | | | | | Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-5-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
* common-user: Move safe-syscall.* from linux-userRichard Henderson2021-12-201-0/+140
| | | | | | | | | | | Move linux-user safe-syscall.S and safe-syscall-error.c to common-user so that bsd-user can also use it. Also move safe-syscall.h to include/user/. Since there is nothing here that is related to the guest, as opposed to the host, build it once. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* Remove leading underscores from QEMU definesAhmed Abouzied2021-06-211-2/+2
| | | | | | | | | | | Leading underscores followed by a capital letter or underscore are reserved by the C standard. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/369 Signed-off-by: Ahmed Abouzied <email@aabouzied.com> Message-Id: <20210605174938.13782-1-email@aabouzied.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* trace: switch position of headers to what Meson requiresPaolo Bonzini2020-08-211-1/+1
| | | | | | | | | | | | | | | | | Meson doesn't enjoy the same flexibility we have with Make in choosing the include path. In particular the tracing headers are using $(build_root)/$(<D). In order to keep the include directives unchanged, the simplest solution is to generate headers with patterns like "trace/trace-audio.h" and place forwarding headers in the source tree such that for example "audio/trace.h" includes "trace/trace-audio.h". This patch is too ugly to be applied to the Makefiles now. It's only a way to separate the changes to the tracing header files from the Meson rewrite of the tracing logic. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: Include trace-root.h in syscall-trace.hRichard Henderson2020-01-151-0/+2
| | | | | | | | | | Code movement in an upcoming patch will show that this file was implicitly depending on trace-root.h being included beforehand. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* *-user: plugin syscallsEmilio G. Cota2019-10-281-0/+40
To avoid too much duplication add a wrapper that the existing trace and the new plugin calls can live in. We could move the -strace code here as well but that is left for a future series as the code is subtly different between the bsd and linux. Signed-off-by: Emilio G. Cota <cota@braap.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [AJB: wrap in syscall-trace.h, expand commit msg] Signed-off-by: Alex Bennée <alex.bennee@linaro.org>