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* target/i386: implement SYSCALL/SYSRET in 32-bit emulatorsPaolo Bonzini2023-06-261-0/+4
| | | | | | | | | | | | | 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>
* Clean up ill-advised or unusual header guardsMarkus Armbruster2022-05-111-3/+3
| | | | | | | | | | | | | | | | | | 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>
* bsd-user/i386/target_arch_cpu.h: Remove openbsd syscallWarner Losh2022-02-261-47/+37
| | | | | | | | | | 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>
* bsd-user: Rename arg name for target_cpu_reset to envWarner Losh2022-01-301-2/+2
| | | | | | | | 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>
* bsd-user/signal-common.h: Move signal functions prototypes to hereWarner Losh2022-01-281-0/+1
| | | | | Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
* bsd-user: TARGET_RESET define is unused, remove itWarner Losh2021-10-181-2/+0
| | | | | | | 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>
* bsd-user: Move per-cpu code into target_arch_cpu.hWarner Losh2021-09-101-0/+209
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>