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target/mips: Make mips_cpu_tlb_fill sysemu only

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The fallback code in cpu_loop_exit_sigsegv is sufficient
for mips linux-user.

This means we can remove tcg/user/tlb_helper.c entirely.
Remove the code from cpu_loop that raised SIGSEGV.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-09-14 17:26:02 -07:00
parent fd297732a2
commit 52d4899bf3
6 changed files with 5 additions and 80 deletions
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11
linux-user/mips/cpu_loop.c
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@ -158,17 +158,6 @@ done_syscall:
}
env->active_tc.gpr[2] = ret;
break;
case EXCP_TLBL:
case EXCP_TLBS:
case EXCP_AdEL:
case EXCP_AdES:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
/* XXX: check env->error_code */
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->CP0_BadVAddr;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_CpU:
case EXCP_RI:
info.si_signo = TARGET_SIGILL;