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([71.212.149.95]) by smtp.gmail.com with ESMTPSA id jg2-20020a17090326c200b001c32fd9e412sm1876466plb.58.2023.10.03.10.43.58 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Oct 2023 10:43:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696355039; x=1696959839; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=eaVdXmZQhYlkm04g9OFjalZJt/4/V8PdWNqw3lUqNt4=; b=fvmBqhA5rZMC75mSZzmMrCvGq8SXZcxzLK+FXtjzVZcpGghkHe40xkIuxSoBrkx7pD VBctG3vM/FbyFNRPy6JiVlQP0XS4yWXDKK2zMhKxXPTxh3xeWo395bvzi0Z3PdNfscTs g2ChBcvhMHchdCQUwyvoXobGOIgQH139w9yhXllmLrXuipyvLd1Fe6JT2Oo4qvm9P4Y/ It8gEpPRgX0F+RJtbi9w9Z4uataxbXwWQWjDm9l05eJNOFWY4ZXQpdl6Yw43cEsTz0Z2 y5NEqzo6N7vT/vw8NNZhP0aJmzoCU7sJr+QyJZChe+NWPLlE93qY2OzM8AWrsDVIy/3Z Q92g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696355039; x=1696959839; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=eaVdXmZQhYlkm04g9OFjalZJt/4/V8PdWNqw3lUqNt4=; b=Q0wZO6sTLflflZaGxmtNfS9ZioGuP6nuRRZ7N7TW0w5OxEGIxAgZ3If8k+MkiMS379 Da0iH/oEupAfFoiB16S85aO8R9klugyi6oWesBbDttYJRBpMBfWpspFdm2I1J5rFDaY+ R7YbGxc6k963WdekC1gvh0BsTraGyLZU69QTpCbkfVluB8boJGZHmw6kkMYrU4D6J0NM PuVh2N9kFJHr9yvcFo69mmk3RcSoYjJyADJRXh1dsu2Vq+L5pnFyNIL2oS3VX+V9zV0+ HBeMwrVo6HWKbaQIc4wbZFkmKXO/2QH7Thpj4IAlBdT0dfVm4663rTqQ1xG1LLxecxVm qPGA== X-Gm-Message-State: AOJu0YzDAa5x4Bx9ttEaR3RY6TTn476OofUNA5bsmiAiSmZ2nvEUz2rl pvd//sRlRx1mnQHYaBi+PHi842TL3CyAWboJMKs= X-Google-Smtp-Source: AGHT+IGbMzExoHi0oGnp9AiMubbCLVmVlr8/4rfNThux2RqZdojrNIX/oXyGOG43tvGDrUQLtmBfvQ== X-Received: by 2002:a05:6a20:394a:b0:13d:df16:cf29 with SMTP id r10-20020a056a20394a00b0013ddf16cf29mr161060pzg.15.1696355038924; Tue, 03 Oct 2023 10:43:58 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 01/10] tcg: Introduce tcg_use_softmmu Date: Tue, 3 Oct 2023 10:43:47 -0700 Message-Id: <20231003174356.1602279-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231003174356.1602279-1-richard.henderson@linaro.org> References: <20231003174356.1602279-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::431; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x431.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1696355091347100007 Content-Type: text/plain; charset="utf-8" Begin disconnecting CONFIG_SOFTMMU from !CONFIG_USER_ONLY. Introduce a variable which can be set at startup to select one method or another for user-only. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- include/tcg/tcg.h | 8 ++++++-- tcg/tcg-op-ldst.c | 14 +++++++------- tcg/tcg.c | 9 ++++++--- 3 files changed, 19 insertions(+), 12 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 680ff00722..a9282cdcc6 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -488,11 +488,9 @@ struct TCGContext { int nb_ops; TCGType addr_type; /* TCG_TYPE_I32 or TCG_TYPE_I64 */ =20 -#ifdef CONFIG_SOFTMMU int page_mask; uint8_t page_bits; uint8_t tlb_dyn_max_bits; -#endif uint8_t insn_start_words; TCGBar guest_mo; =20 @@ -573,6 +571,12 @@ static inline bool temp_readonly(TCGTemp *ts) return ts->kind >=3D TEMP_FIXED; } =20 +#ifdef CONFIG_USER_ONLY +extern bool tcg_use_softmmu; +#else +#define tcg_use_softmmu true +#endif + extern __thread TCGContext *tcg_ctx; extern const void *tcg_code_gen_epilogue; extern uintptr_t tcg_splitwx_diff; diff --git a/tcg/tcg-op-ldst.c b/tcg/tcg-op-ldst.c index df4f22c427..2b96687699 100644 --- a/tcg/tcg-op-ldst.c +++ b/tcg/tcg-op-ldst.c @@ -34,13 +34,13 @@ =20 static void check_max_alignment(unsigned a_bits) { -#if defined(CONFIG_SOFTMMU) /* * The requested alignment cannot overlap the TLB flags. * FIXME: Must keep the count up-to-date with "exec/cpu-all.h". */ - tcg_debug_assert(a_bits + 5 <=3D tcg_ctx->page_bits); -#endif + if (tcg_use_softmmu) { + tcg_debug_assert(a_bits + 5 <=3D tcg_ctx->page_bits); + } } =20 static MemOp tcg_canonicalize_memop(MemOp op, bool is64, bool st) @@ -411,10 +411,11 @@ void tcg_gen_qemu_st_i64_chk(TCGv_i64 val, TCGTemp *a= ddr, TCGArg idx, */ static bool use_two_i64_for_i128(MemOp mop) { -#ifdef CONFIG_SOFTMMU /* Two softmmu tlb lookups is larger than one function call. */ - return false; -#else + if (tcg_use_softmmu) { + return false; + } + /* * For user-only, two 64-bit operations may well be smaller than a cal= l. * Determine if that would be legal for the requested atomicity. @@ -432,7 +433,6 @@ static bool use_two_i64_for_i128(MemOp mop) default: g_assert_not_reached(); } -#endif } =20 static void canonicalize_memop_i128_as_i64(MemOp ret[2], MemOp orig) diff --git a/tcg/tcg.c b/tcg/tcg.c index f664cf1484..e753387690 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -226,6 +226,10 @@ static TCGAtomAlign atom_and_align_for_opc(TCGContext = *s, MemOp opc, MemOp host_atom, bool allow_two= _ops) __attribute__((unused)); =20 +#ifdef CONFIG_USER_ONLY +bool tcg_use_softmmu; +#endif + TCGContext tcg_init_ctx; __thread TCGContext *tcg_ctx; =20 @@ -404,13 +408,12 @@ static uintptr_t G_GNUC_UNUSED get_jmp_target_addr(TC= GContext *s, int which) return (uintptr_t)tcg_splitwx_to_rx(&s->gen_tb->jmp_target_addr[which]= ); } =20 -#if defined(CONFIG_SOFTMMU) && !defined(CONFIG_TCG_INTERPRETER) -static int tlb_mask_table_ofs(TCGContext *s, int which) +static int __attribute__((unused)) +tlb_mask_table_ofs(TCGContext *s, int which) { return (offsetof(CPUNegativeOffsetState, tlb.f[which]) - sizeof(CPUNegativeOffsetState)); } -#endif =20 /* Signal overflow, starting over with fewer guest insns. */ static G_NORETURN --=20 2.34.1