qemu/linux-user/mips, branch master

linux-user/mips: Do not try to use removed R5900 CPU

2024-08-19T22:47:57Z

R5900 emulation was removed in commit 823f2897bd. Remove it from ELF parsing in order to avoid: $ qemu-mipsn32 ./test5900 qemu-mipsn32: unable to find CPU model 'R5900' This reverts commit 4d9e5a0eb7df6e98ac6cf5e16029f35dd05b9537. Fixes: 823f2897bd ("target/mips: Disable R5900 support") Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Message-Id: <20240814133928.6746-2-philmd@linaro.org>

linux-user: Move tswap_siginfo out of target code

2024-03-13T11:43:52Z

Move tswap_siginfo from target code to handle_pending_signal. This will allow some cleanups and having the siginfo ready to be used in gdbstub. Signed-off-by: Gustavo Romero Suggested-by: Richard Henderson Reviewed-by: Richard Henderson Message-Id: <20240309030901.1726211-3-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée

{linux,bsd}-user: Introduce get_task_state()

2024-03-06T12:35:19Z

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 Signed-off-by: Ilya Leoshkevich Reviewed-by: Warner Losh Reviewed-by: Richard Henderson Message-Id: <20240219141628.246823-3-iii@linux.ibm.com> Signed-off-by: Alex Bennée Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>

linux-user/mips: fix abort on integer overflow

2023-10-18T22:32:16Z

QEMU mips userspace emulation crashes with "qemu: unhandled CPU exception 0x15 - aborting" when one of the integer arithmetic instructions detects an overflow. This patch fixes it so that it delivers SIGFPE with FPE_INTOVF instead. Cc: qemu-stable@nongnu.org Signed-off-by: Mikulas Patocka Message-Id: <3ef979a8-3ee1-eb2d-71f7-d788ff88dd11@redhat.com> Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson

linux-user: Split out cpu/target_proc.h

2023-09-01T20:33:09Z

Move the various open_cpuinfo functions into new files. Move the m68k open_hardware function as well. All other guest architectures get a boilerplate empty file. Tested-by: Helge Deller Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson

linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h

2023-08-08T20:27:15Z

Copy each guest kernel's default value, then bound it against reserved_va or the host address space. Tested-by: Helge Deller Reviewed-by: Helge Deller Signed-off-by: Richard Henderson

linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h

2023-08-08T20:24:27Z

Provide default values that are as close as possible to the values used by the guest's kernel. Tested-by: Helge Deller Reviewed-by: Helge Deller Reviewed-by: Akihiko Odaki Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson

linux-user: Split TARGET_PROT_* out of syscall_defs.h

2023-07-15T07:02:32Z

Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson Message-Id: <20230707204054.8792-8-richard.henderson@linaro.org>

linux-user: Split TARGET_MAP_* out of syscall_defs.h

2023-07-15T07:02:32Z

Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson Message-Id: <20230707204054.8792-7-richard.henderson@linaro.org>

linux-user: Fix mips fp64 executables loading

2023-05-17T05:20:29Z

If a program requires fr1, we should set the FR bit of CP0 control status register and add F64 hardware flag. The corresponding `else if` branch statement is copied from the linux kernel sources (see `arch_check_elf` function in linux/arch/mips/kernel/elf.c). Signed-off-by: Daniil Kovalev Reviewed-by: Jiaxun Yang Message-Id: <20230404052153.16617-1-dkovalev@compiler-toolchain-for.me> Signed-off-by: Laurent Vivier