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32 hoursaccel: Propagate AccelState to AccelClass::init_machine()Philippe Mathieu-Daudé1-1/+1
In order to avoid init_machine() to call current_accel(), pass AccelState along. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250703173248.44995-31-philmd@linaro.org>
2025-05-08bsd-user: add option to enable pluginsPierrick Bouvier1-0/+12
Nothing prevent plugins to be enabled on this platform for user binaries, only the option in the driver is missing. Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20250331234228.3475706-1-pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-05-05include/user: Convert GUEST_ADDR_MAX to a variableRichard Henderson1-0/+8
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>
2025-05-05accel/tcg: Use vaddr in cpu_loop.hRichard Henderson1-2/+2
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>
2025-04-30include: Remove 'exec/exec-all.h'Philippe Mathieu-Daudé2-2/+0
"exec/exec-all.h" is now fully empty, let's remove it. Mechanical change running: $ sed -i '/exec\/exec-all.h/d' $(git grep -wl exec/exec-all.h) Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20250424202412.91612-14-philmd@linaro.org>
2025-04-24Merge tag 'pull-misc-2025-04-24' of https://repo.or.cz/qemu/armbru into stagingStefan Hajnoczi1-1/+0
Miscellaneous patches for 2025-04-24 # -----BEGIN PGP SIGNATURE----- # # iQJGBAABCAAwFiEENUvIs9frKmtoZ05fOHC0AOuRhlMFAmgJ7dYSHGFybWJydUBy # ZWRoYXQuY29tAAoJEDhwtADrkYZTiZIP/1PFAg/s3SoiLQwH/ZrjyUkm1kiKnjOH # CC5Stw6I9tuYnDAhASAdSymofLv0NNydNe5ai6ZZAWRyRYjIcfNigKAGK4Di+Uhe # nYxT0Yk8hNGwMhl6NnBp4mmCUNCwcbjT9uXdiYQxFYO/qqYR1388xJjeN3c362l3 # AaLrE5bX5sqa6TAkTeRPjeIqxlyGT7jnCrN7I1hMhDvbc3ITF3AMfYFMjnmAQgr+ # mTWGS1QogqqkloODbR1DKD1CAWOlpK+0HibhNF+lz71P0HlwVvy+HPXso505Wf0B # dMwlSrZ1DnqNVF/y5IhMEMslahKajbjbFVhBjmrGl/8T821etCxxgB20c0vyFRy8 # qTyJGwBZaEo0VWr70unSmq45TRoeQvdHAw/e+GtilR0ci80q2ly4gbObnw7L8le+ # gqZo4IWmrwp2sbPepE57sYKQpEndwbRayf/kcFd0LPPpeINu9ZooXkYX0pOo6Cdg # vDKMaEB1/fmPhjSlknxkKN9LZdR+nDw8162S1CKsUdWanAOjmP8haN19aoHhIekZ # q+r2qUq/U827yNy9/qbInmsoFYDz9s6sAOE63jibd5rZZ9Anei6NOSgLzA4CqCR1 # +d0+TXp19gP9mLMFs7/ZclwkXCz47OQYhXYphjI3wM9x+xbdRcI4n+DOH5u5coKx # AsA6+2n0GF4Y # =GaoH # -----END PGP SIGNATURE----- # gpg: Signature made Thu 24 Apr 2025 03:52:54 EDT # gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653 # gpg: issuer "armbru@redhat.com" # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full] # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full] # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * tag 'pull-misc-2025-04-24' of https://repo.or.cz/qemu/armbru: cleanup: Drop pointless label at end of function cleanup: Drop pointless return at end of function cleanup: Re-run return_directly.cocci Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-04-24cleanup: Drop pointless return at end of functionMarkus Armbruster1-1/+0
A few functions now end with a label. The next commit will clean them up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20250407082643.2310002-3-armbru@redhat.com> [Straightforward conflict with commit 988ad4ccebb6 (hw/loongarch/virt: Fix cpuslot::cpu set at last in virt_cpu_plug()) resolved]
2025-04-23exec: Restrict 'cpu_ldst.h' to accel/tcg/Philippe Mathieu-Daudé1-1/+1
Mechanical change using: $ sed -i -e 's,exec/cpu_ldst,accel/tcg/cpu-ldst,' \ $(git grep -l exec/cpu_ldst.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> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-04-23include/exec: Split out mmap-lock.hRichard Henderson2-0/+2
Split out mmap_lock, et al from page-protection.h to a new header. 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>
2025-03-21exec/cpu-all: remove BSWAP_NEEDEDPierrick Bouvier1-3/+3
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>
2025-03-10plugins/api: split out binary path/start/end/entry codeAlex Bennée2-0/+16
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>
2025-03-09user: Prefer cached CpuClass over CPU_GET_CLASS() macroPhilippe Mathieu-Daudé1-2/+2
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>
2025-03-09user: Extract common MMAP API to 'user/mmap.h'Philippe Mathieu-Daudé1-11/+1
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>
2025-03-09bsd-user: Propagate alignment argument to mmap_find_vma()Philippe Mathieu-Daudé3-10/+6
Propagate the alignment to mmap_find_vma(), effectively embedding mmap_find_vma_aligned() within mmap_find_vma(). Add a comment in do_bsd_shmat() to clarify alignment above page size is not required. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20250308122842.76377-3-philmd@linaro.org>
2025-03-09bsd-user: Always use mmap_find_vma_aligned() in target_mmap()Philippe Mathieu-Daudé1-5/+4
Massage target_mmap(): calculate alignment once, then unconditionally call mmap_find_vma_aligned(). Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20250308122842.76377-2-philmd@linaro.org>
2025-03-06accel/tcg: Rename 'hw/core/tcg-cpu-ops.h' -> 'accel/tcg/cpu-ops.h'Philippe Mathieu-Daudé1-1/+1
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>
2025-03-06qemu/compiler: Absorb 'clang-tsa.h'Philippe Mathieu-Daudé1-1/+0
We already have "qemu/compiler.h" for compiler-specific arrangements, automatically included by "qemu/osdep.h" for each source file. No need to explicitly include a header for a Clang particularity. Suggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250117170201.91182-1-philmd@linaro.org>
2025-02-10gdbstub: Allow late attachmentIlya Leoshkevich1-1/+0
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>
2025-02-10user: Introduce host_interrupt_signalIlya Leoshkevich1-0/+12
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>
2025-02-10user: Introduce user/signal.hIlya Leoshkevich2-1/+1
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>
2025-01-17system: propagate Error to gdbserver_start (and other device setups)Alex Bennée1-1/+1
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>
2024-12-20user: Move various declarations out of 'exec/exec-all.h'Philippe Mathieu-Daudé1-0/+1
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>
2024-12-20user: Declare cpu_loop() once in 'user/cpu_loop.h'Philippe Mathieu-Daudé6-6/+6
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>
2024-12-20accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (4/4)Philippe Mathieu-Daudé1-0/+1
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>
2024-12-20accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (3/4)Philippe Mathieu-Daudé1-0/+1
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>
2024-12-20accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (2/4)Philippe Mathieu-Daudé1-0/+1
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>
2024-12-20accel/tcg: Move user-related declarations out of 'exec/cpu-all.h' (1/4)Philippe Mathieu-Daudé2-0/+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: <20241212185341.2857-12-philmd@linaro.org>
2024-11-04bsd-user: Set TaskState ts_tid for initial threadsJessica Clarke1-0/+1
Currently we only set it on fork. Note: Upstream (blitz) commit also did new threads, but that code isn't in qemu project repo yet. Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Pull-Request: https://github.com/qemu-bsd-user/qemu-bsd-user/pull/52 Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com>
2024-11-04bsd-user/main: Allow setting tb-sizeIlya Leoshkevich1-0/+9
While qemu-system can set tb-size using -accel tcg,tb-size=n, there is no similar knob for qemu-bsd-user. Add one in a way similar to how one-insn-per-tb is already handled. Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com>
2024-11-04bsd-user/x86_64/target_arch_thread.h: Align stackIlya Leoshkevich1-1/+1
bsd-user qemu-x86_64 almost immediately dies with: qemu: 0x4002201a68: unhandled CPU exception 0xd - aborting on FreeBSD 14.1-RELEASE. This is an instruction that requires alignment: (gdb) x/i 0x4002201a68 0x4002201a68: movaps %xmm0,-0x40(%rbp) and the argument is not aligned: (gdb) p/x env->regs[5] $1 = 0x822443b58 A quick experiment shows that the userspace entry point expects misaligned rsp: (gdb) starti (gdb) p/x $rsp $1 = 0x7fffffffeaa8 Emulate this behavior in bsd-user. [[ applied Richard's suggestion ]] Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com>
2024-10-02bsd-user: Implement set_mcontext and get_ucontext_sigreturn for RISCVMark Corbin1-0/+54
Added implementations for 'set_mcontext' and 'get_ucontext_sigreturn' functions for RISC-V architecture, Both functions ensure that the CPU state and user context are properly managed. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-17-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement 'get_mcontext' for RISC-VMark Corbin1-0/+53
Added the 'get_mcontext' function to extract and populate the RISC-V machine context from the CPU state. This function is used to gather the current state of the general-purpose registers and store it in a 'target_mcontext_' structure. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Co-authored-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-16-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement RISC-V signal trampoline setup functionsMark Corbin1-0/+63
Added functions for setting up the RISC-V signal trampoline and signal frame: 'set_sigtramp_args()': Configures the RISC-V CPU state with arguments for the signal handler. It sets up the registers with the signal number,pointers to the signal info and user context, the signal handler address, and the signal frame pointer. 'setup_sigframe_arch()': Initializes the signal frame with the current machine context.This function copies the context from the CPU state to the signal frame, preparing it for the signal handler. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Co-authored-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-15-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Define RISC-V signal handling structures and constantsMark Corbin1-0/+75
Added definitions for RISC-V signal handling, including structures and constants for managing signal frames and context Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-14-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Add generic RISC-V64 target definitionsWarner Losh1-0/+20
Added a generic definition for RISC-V64 target-specific details. Implemented the 'regpairs_aligned' function,which returns 'false' to indicate that register pairs are not aligned in the RISC-V64 ABI. Signed-off-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-13-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Define RISC-V system call structures and constantsMark Corbin1-0/+38
Introduced definitions for the RISC-V system call interface, including the 'target_pt_regs' structure that outlines the register storage layout during a system call. Added constants for hardware machine identifiers. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-12-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Define RISC-V VM parameters and helper functionsMark Corbin1-0/+53
Added definitions for RISC-V VM parameters, including maximum and default sizes for text, data, and stack, as well as address space limits. Implemented helper functions for retrieving and setting specific values in the CPU state, such as stack pointer and return values. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-11-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Add RISC-V thread setup and initialization supportMark Corbin1-0/+47
Implemented functions for setting up and initializing threads in the RISC-V architecture. The 'target_thread_set_upcall' function sets up the stack pointer, program counter, and function argument for new threads. The 'target_thread_init' function initializes thread registers based on the provided image information. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com> Co-authored-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-10-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement RISC-V sysarch system call emulationMark Corbin1-0/+41
Added the 'do_freebsd_arch_sysarch' function to emulate the 'sysarch' system call for the RISC-V architecture. Currently, this function returns '-TARGET_EOPNOTSUPP' to indicate that the operation is not supported. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-9-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Add RISC-V signal trampoline setup functionMark Corbin1-0/+41
Implemented the 'setup_sigtramp' function for setting up the signal trampoline code in the RISC-V architecture. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-8-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Define RISC-V register structures and register copyingMark Corbin1-0/+88
Added definitions for RISC-V register structures, including general-purpose registers and floating-point registers, in 'target_arch_reg.h'. Implemented the 'target_copy_regs' function to copy register values from the CPU state to the target register structure, ensuring proper endianness handling using 'tswapreg'. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-7-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Add RISC-V ELF definitions and hardware capability detectionMark Corbin1-0/+42
Introduced RISC-V specific ELF definitions and hardware capability detection. Additionally, a function to retrieve hardware capabilities ('get_elf_hwcap') is implemented, which returns the common bits set in each CPU's ISA strings. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-6-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement RISC-V TLS register setupMark Corbin2-0/+56
Included the prototype for the 'target_cpu_set_tls' function in the 'target_arch.h' header file. This function is responsible for setting the Thread Local Storage (TLS) register for RISC-V architecture. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-5-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement RISC-V CPU register cloning and reset functionsMark Corbin1-0/+14
Added functions for cloning CPU registers and resetting the CPU state for RISC-V architecture. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-4-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Add RISC-V CPU execution loop and syscall handlingMark Corbin1-0/+94
Implemented the RISC-V CPU execution loop, including handling various exceptions and system calls. The loop continuously executes CPU instructions,processes exceptions, and handles system calls by invoking FreeBSD syscall handlers. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com> Co-authored-by: Kyle Evans <kevans@FreeBSD.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-3-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-10-02bsd-user: Implement RISC-V CPU initialization and main loopMark Corbin1-0/+40
Added the initial implementation for RISC-V CPU initialization and main loop. This includes setting up the general-purpose registers and program counter based on the provided target architecture definitions. Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-2-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2024-08-21bsd-user: Handle short reads in mmap_h_gt_gRichard Henderson1-2/+36
In particular, if an image has a large bss, we can hit EOF before reading all bytes of the mapping. Mirror the similar change to linux-user. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20240820050848.165253-3-richard.henderson@linaro.org>
2024-07-24bsd-user: Add target.h for aarch64.Warner Losh1-0/+20
For aarch64, it's a 64-bit API, so there's no pairing of registers for 64-bit values. Signed-off-by: Warner Losh <imp@bsdimp.com>
2024-07-23bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stackWarner Losh5-8/+9
Most (all?) targets require stacks to be properly aligned. Rather than a series of ifdefs in bsd-user/signal.h, instead use a manditory #define for all architectures. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-23bsd-user: Sync fork_start/fork_end with linux-userJessica Clarke1-12/+14
This reorders some of the calls, deduplicates code between branches and, most importantly, fixes a double end_exclusive call in the parent that will cause exclusive_context_count to go negative. Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Pull-Request: https://github.com/qemu-bsd-user/qemu-bsd-user/pull/52 Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
generated by cgit v1.1 at 2025-07-05 18:00:30 +0000