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([2602:47:d49d:ec01:bbf3:9914:aa9c:3b4e]) by smtp.gmail.com with ESMTPSA id g184-20020a6252c1000000b00535d19c46d7sm2199904pfb.203.2022.08.18.20.26.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Aug 2022 20:26:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=PnxOd469lmAdC/RQB8O6SvRIgXAOuOZ1V4tulDNdRcM=; b=f4ODB/4axXqQSCyfaLKzSQnK/aQ63wY+Msg1h/Ov496F+uawNOrgmAZmhi5DJXe1BF qLCH4Wt/qqqEaENstN6EOomVxiawBt4OBVzw/KiykYnEeEgSHT8y4Myw50UD3NBR6F2U kNvsMExGgKyMOuxeHC8V/ozBDdd715LOlci0iCsk4U5pANutUwTIM05U8bu7SyONgkh+ t8DqQ3MGPxyCXMNOE8t8HksyPw8Hp31KENnp9MS+V382+ZvOgZJblwO3XY+LuRILpO8U SeVjF68FwJnLiLn4TCHBxBF8HVBRUfwB2cBga8nAlQIrn14ofT1FuZCBG8UrUA2vyM2S kQGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=PnxOd469lmAdC/RQB8O6SvRIgXAOuOZ1V4tulDNdRcM=; b=v4uYL7lCabBlgkWqG1bqN+OzU4qDaxUpfZJW1NavNP+d6U/2Lwpi8SDWKKjwIF7h9P wBLvjW7Huq0OxVaDr6gYPRRxEaKCYE6DzwK5fgiwn8zxgeVca/9fnjTgZVhHnUj8wY6M d0YuvQCyrabwevnwxaTdCcrs1TvTkfpW5TuYepccwzeafNAu3dhQmwSJ7nQauhSY/tsl YxEOXfUqY2PGYOs9/5NrdN+BJJld1FokGiBxLYMox09dth5x3Oezt/poUn/+0fKHOtvB Uxu/8AyEP8b1urhw70jRISPUv/EqfJ5+rJP397HD4+CNIfgCA4IzDOiSl0vBsgM/IcTm DNgA== X-Gm-Message-State: ACgBeo0kaVXjKtvBGzFIABeswdR+QPSLo2/Uu8KhOPNBGIkKQ88wh0E4 FaHH2o0cOqlUV5lmCr6WXitvIw1Nd1WCew== X-Google-Smtp-Source: AA6agR5/+hqrvoMCBmGT34hggxbg6txNwPB3O1oMhDki/ZAREtGSqeEFkYU+FNrCdedyRddo3Nl+JA== X-Received: by 2002:a17:90b:4b0d:b0:1fa:e712:dd53 with SMTP id lx13-20020a17090b4b0d00b001fae712dd53mr517008pjb.10.1660879584451; Thu, 18 Aug 2022 20:26:24 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: laurent@vivier.eu, iii@linux.ibm.com, dramforever@live.com, alistair.francis@wdc.com, alex.bennee@linaro.org Subject: [PATCH v6 07/21] accel/tcg: Introduce is_same_page() Date: Thu, 18 Aug 2022 20:26:01 -0700 Message-Id: <20220819032615.884847-8-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220819032615.884847-1-richard.henderson@linaro.org> References: <20220819032615.884847-1-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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1033; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1033.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, T_SCC_BODY_TEXT_LINE=-0.01, T_SPF_TEMPERROR=0.01 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+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1660879714729100001 Content-Type: text/plain; charset="utf-8" From: Ilya Leoshkevich Introduce a function that checks whether a given address is on the same page as where disassembly started. Having it improves readability of the following patches. Signed-off-by: Ilya Leoshkevich Message-Id: <20220811095534.241224-3-iii@linux.ibm.com> Reviewed-by: Richard Henderson [rth: Make the DisasContextBase parameter const.] Signed-off-by: Richard Henderson Reviewed-by: Alistair Francis --- include/exec/translator.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/exec/translator.h b/include/exec/translator.h index 7db6845535..0d0bf3a31e 100644 --- a/include/exec/translator.h +++ b/include/exec/translator.h @@ -187,4 +187,14 @@ FOR_EACH_TRANSLATOR_LD(GEN_TRANSLATOR_LD) =20 #undef GEN_TRANSLATOR_LD =20 +/* + * Return whether addr is on the same page as where disassembly started. + * Translators can use this to enforce the rule that only single-insn + * translation blocks are allowed to cross page boundaries. + */ +static inline bool is_same_page(const DisasContextBase *db, target_ulong a= ddr) +{ + return ((addr ^ db->pc_first) & TARGET_PAGE_MASK) =3D=3D 0; +} + #endif /* EXEC__TRANSLATOR_H */ --=20 2.34.1