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[209.51.188.17]) by mx.google.com with ESMTPS id 67si9216066ybm.47.2021.09.18.12.13.31 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sat, 18 Sep 2021 12:13:31 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=LHcNh9ZA; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:52632 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mRfmF-0003jc-08 for patch@linaro.org; Sat, 18 Sep 2021 15:13:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54564) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mRfLj-0005Ef-Us for qemu-devel@nongnu.org; Sat, 18 Sep 2021 14:46:08 -0400 Received: from mail-pf1-x42f.google.com ([2607:f8b0:4864:20::42f]:35634) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mRfLb-0006wl-46 for qemu-devel@nongnu.org; Sat, 18 Sep 2021 14:46:07 -0400 Received: by mail-pf1-x42f.google.com with SMTP id w14so1834155pfu.2 for ; Sat, 18 Sep 2021 11:45:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=pdR7M5gTpnKqPa2u5ulNgoeIpoR7t4q0hOa5Vm4dJ50=; b=LHcNh9ZAkzWYLU64vOcEJxd/6BAGlz5Yp+/STJ8w3dcN2lEK8/JxpaDqlmlw8OxkYx +9Eck3J18nulkNMMbBvo8uWsQwoubL2EUZt+Qa9v9BJtnj8eyoQZaGhjFRekSdQpMGVX psSlHUQdlYvqjOWmF10IO4+qP+PbELgwkRhlZGaW1DJREKM56a4IaYlPcVjXNjbmnEBG MBR9m1BkGudcmEkrUpq5p6VKCV12BNkNY5GqHol1JV1lvYLXY6XyVZwg/p178m6cEb/z jAyaj88H6TFA3SidPrnWvXwiZI0MMrHTjj4K51ly4ciyNrme4bJ3X49/Ns6SxImYaCas 7O/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=pdR7M5gTpnKqPa2u5ulNgoeIpoR7t4q0hOa5Vm4dJ50=; b=s7LNGTOibE9t1SyYMnDX68D1jKoXDoF0iVu4dApFqVBoZW8XdMIdSrHB9bZWVokiMp rrwYA61VsAh/Wx5bjdF17GLCGhDIRgFUUXKOCNnQzJZt5llMu7TXXlkVbZ+ZJsGrv0q5 XJuTi0t+vhkUdjzLEZr3Q+IH+GoM+tHTVAjp/HcE44ThDRx674lWggH6s3E7TSqT3mF6 eHCofmgIRVmW4g0PvTk4WCaTlUQV2BeNrnEID4QkmtBsPhU1f/Y3AYUmZbT7R9sZJNXT aPslugpGmSCs4I1NUgNuBPkfMZb41GD5eb+3pDTJtAKpzLxCekI7M4J0JNexas51Aeys yEzg== X-Gm-Message-State: AOAM5311ZN8qERpTW6TI85e0kJlhhtSRLUpr+IepJy/qqpewJVyOK3pV wsuHV/4AzMH9Z/NNpbHbZFNV38Qalz0Vmg== X-Received: by 2002:a62:6246:0:b0:443:852a:2a2e with SMTP id w67-20020a626246000000b00443852a2a2emr13271843pfb.14.1631990753630; Sat, 18 Sep 2021 11:45:53 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id y26sm9555858pfe.69.2021.09.18.11.45.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Sep 2021 11:45:53 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 30/41] target/mips: Make mips_cpu_tlb_fill sysemu only Date: Sat, 18 Sep 2021 11:45:16 -0700 Message-Id: <20210918184527.408540-31-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210918184527.408540-1-richard.henderson@linaro.org> References: <20210918184527.408540-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@vivier.eu Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" The fallback code in raise_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. Signed-off-by: Richard Henderson --- target/mips/tcg/tcg-internal.h | 7 ++-- linux-user/mips/cpu_loop.c | 11 ------ target/mips/cpu.c | 2 +- target/mips/tcg/user/tlb_helper.c | 59 ------------------------------- target/mips/tcg/meson.build | 3 -- target/mips/tcg/user/meson.build | 3 -- 6 files changed, 5 insertions(+), 80 deletions(-) delete mode 100644 target/mips/tcg/user/tlb_helper.c delete mode 100644 target/mips/tcg/user/meson.build -- 2.25.1 diff --git a/target/mips/tcg/tcg-internal.h b/target/mips/tcg/tcg-internal.h index c7a77ddccd..8ba36a8ef8 100644 --- a/target/mips/tcg/tcg-internal.h +++ b/target/mips/tcg/tcg-internal.h @@ -18,9 +18,6 @@ void mips_tcg_init(void); void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb); -bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr); void mips_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, MMUAccessType access_type, int mmu_idx, uintptr_t retaddr); @@ -60,6 +57,10 @@ void mips_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, MemTxResult response, uintptr_t retaddr); void cpu_mips_tlb_flush(CPUMIPSState *env); +bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, + MMUAccessType access_type, int mmu_idx, + bool probe, uintptr_t retaddr); + #endif /* !CONFIG_USER_ONLY */ #endif diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index 9d813ece4e..40825ca566 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -156,17 +156,6 @@ 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; diff --git a/target/mips/cpu.c b/target/mips/cpu.c index 3639c03f8e..439b2f1635 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -541,10 +541,10 @@ static const struct SysemuCPUOps mips_sysemu_ops = { static const struct TCGCPUOps mips_tcg_ops = { .initialize = mips_tcg_init, .synchronize_from_tb = mips_cpu_synchronize_from_tb, - .tlb_fill = mips_cpu_tlb_fill, #if !defined(CONFIG_USER_ONLY) .has_work = mips_cpu_has_work, + .tlb_fill = mips_cpu_tlb_fill, .cpu_exec_interrupt = mips_cpu_exec_interrupt, .do_interrupt = mips_cpu_do_interrupt, .do_transaction_failed = mips_cpu_do_transaction_failed, diff --git a/target/mips/tcg/user/tlb_helper.c b/target/mips/tcg/user/tlb_helper.c deleted file mode 100644 index 210c6d529e..0000000000 --- a/target/mips/tcg/user/tlb_helper.c +++ /dev/null @@ -1,59 +0,0 @@ -/* - * MIPS TLB (Translation lookaside buffer) helpers. - * - * Copyright (c) 2004-2005 Jocelyn Mayer - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see . - */ -#include "qemu/osdep.h" - -#include "cpu.h" -#include "exec/exec-all.h" -#include "internal.h" - -static void raise_mmu_exception(CPUMIPSState *env, target_ulong address, - MMUAccessType access_type) -{ - CPUState *cs = env_cpu(env); - - env->error_code = 0; - if (access_type == MMU_INST_FETCH) { - env->error_code |= EXCP_INST_NOTAVAIL; - } - - /* Reference to kernel address from user mode or supervisor mode */ - /* Reference to supervisor address from user mode */ - if (access_type == MMU_DATA_STORE) { - cs->exception_index = EXCP_AdES; - } else { - cs->exception_index = EXCP_AdEL; - } - - /* Raise exception */ - if (!(env->hflags & MIPS_HFLAG_DM)) { - env->CP0_BadVAddr = address; - } -} - -bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, - MMUAccessType access_type, int mmu_idx, - bool probe, uintptr_t retaddr) -{ - MIPSCPU *cpu = MIPS_CPU(cs); - CPUMIPSState *env = &cpu->env; - - /* data access */ - raise_mmu_exception(env, address, access_type); - do_raise_exception_err(env, cs->exception_index, env->error_code, retaddr); -} diff --git a/target/mips/tcg/meson.build b/target/mips/tcg/meson.build index 8f6f7508b6..98003779ae 100644 --- a/target/mips/tcg/meson.build +++ b/target/mips/tcg/meson.build @@ -28,9 +28,6 @@ mips_ss.add(when: 'TARGET_MIPS64', if_true: files( 'mxu_translate.c', )) -if have_user - subdir('user') -endif if have_system subdir('sysemu') endif diff --git a/target/mips/tcg/user/meson.build b/target/mips/tcg/user/meson.build deleted file mode 100644 index 79badcd321..0000000000 --- a/target/mips/tcg/user/meson.build +++ /dev/null @@ -1,3 +0,0 @@ -mips_user_ss.add(files( - 'tlb_helper.c', -))