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[81.2.115.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488ffc5e3f4sm448974115e9.2.2026.04.27.05.47.53 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Apr 2026 05:47:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1777294550; x=1777899350; 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=iKeG7yWNptnTHptfbzF+P6p/GjNxY6FOc39UsNXWGeQ=; b=eLSsXnH0GPffxS4WTzlXYQ8bntYdT7vUIXygP+gjrTDf07tYy5GGu3AuQnATtTt5UY aXsH0yuxd09bxc0L+OMwKYawJgS1pEEp4YI8yQ3RZPvrjXwAev3sOQ30R6rhfl7yjLY5 PX6YA3YgRK5o7hv1t8YcUf/1RqBgdC7iJd09jUcUIDEmfSJLI3stHB8+koD/6BUiBJzo Xs+VSYf8K3+lmcyf7ISNFRKwM9KU+A1zmEsRzKqBrXIL+MP6gJu0gPLRGYUk26ivaNdq AnYiodlyW+ZB4BG8cRJUgX79G3M31oyUIY8z/mJuudGkYrLqAcrjYBm9h35IIQN9T8RQ T78A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777294550; x=1777899350; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=iKeG7yWNptnTHptfbzF+P6p/GjNxY6FOc39UsNXWGeQ=; b=o8CesFzcYtxJV36yaT+WAQwakrShoatiH02fDB0qtNBBBO48kYfO1+m8H8iT4a+LYY k31cshcNeLyC7GgB9dy9MK4c4daLvPmFWbGXP7e7WwYi7R4cjNCG3jejLIT021z4XPcw vEQ2LaIppoB809BjoyURYz0zl+w8aG3aiF3E9P95Q2KSU/9dTwxU+2nLmy1TBNJlByjf o0Z2l0oPTDN8PcepmHNRqRvJ+IEuIHes3LPFiU71V+IVUqE1IUzO8i24CMaTrw9xAVRM XG09KZ/Z7I+sXEJRcfCo22JoM2lv0P6tEXN6Yk3DjAGnQLPJbmikoiKOAqVIsnNHUmiV M6Jg== X-Gm-Message-State: AOJu0YxsgYAKPiSWWJtl/ZFAkTzbUgyFjc4mna5AvVaye1loKhTezETw YpGtVjTYBdOgQ2MwPmzseXah5k5WUz/qXuigFnAd5W31iXJBY7MWS6faPlTedFLn9xkVmmZ6O00 aaFJS X-Gm-Gg: AeBDiethB+EylHpU5H4a9maQnQ8Gxps4+HopzJNXNwJpzgxELxvyzdjSVPyGyI8+2ei qTiypZZl8EsCQFStx3joCo1LJoLfvJ8gBXgHpqv4KpfeUGKl3OIp6Tt1d+sGI2lUhPh/XsZmL98 BWvo1sF+5sI39c/5EMU0LSM5FAfahI0Bi/87xU0YkRgr5Px+mPsc+UcP4a3h1DZJcg6V1JDFfOl QDmmK5plW0SJSpsnQNo3wVrNjDn6OxHmkBiOhxJUn1oDeg3/j2Mmyabxz9OAS+GcRTxbQI2Wc+s 0iUW3YfrzOairfNLSrVc/+d4haJx2bxqYsqCUl0B2BuFdXVWYdZFzri6l4mNdbvLXiVR/34RdQT bhxZc5Lqi9RT3WKTFkuCi67r8KagtSkl97D3IjbbBrrKWcoGWhCItowNrONvMNhsZACHmHdU7o3 yWS5/YKgy1XVDdSGkX77Z+paazyYM8MwFBDsAihyrPb799c40dj3VA57fTLyqMso5PP5JlSmHf4 dmHRUqQTfSgBjliQfmoUqxTIT1bkrq+1VW8Ne9uSA== X-Received: by 2002:a05:600c:41d6:b0:487:2439:b7c8 with SMTP id 5b1f17b1804b1-488fb745294mr370527985e9.1.1777294074280; Mon, 27 Apr 2026 05:47:54 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 17/63] target/arm: Ignore endianness when setting MTE tags Date: Mon, 27 Apr 2026 13:46:51 +0100 Message-ID: <20260427124738.966578-18-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260427124738.966578-1-peter.maydell@linaro.org> References: <20260427124738.966578-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=lists1p.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::536; envelope-from=peter.maydell@linaro.org; helo=mail-ed1-x536.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: qemu development 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: 1777294890641154100 From: Philippe Mathieu-Daud=C3=A9 As mentioned by Richard in [*]: We don't actually need any specific endianness here, because every byte has the same value. So we could simply drop MO_TE. That would produce a store in host-endianness, which will be fractionally more efficient on some hosts. [*] https://lore.kernel.org/qemu-devel/d64d3576-9188-4e74-afdc-3492c9feb8e0= @linaro.org/ Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daud=C3=A9 Message-id: 20260414005348.4767-2-philmd@linaro.org Signed-off-by: Peter Maydell --- target/arm/tcg/helper-a64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/tcg/helper-a64.c b/target/arm/tcg/helper-a64.c index a7372aa6bb..dd1f9c6dc6 100644 --- a/target/arm/tcg/helper-a64.c +++ b/target/arm/tcg/helper-a64.c @@ -1019,7 +1019,7 @@ static uint64_t set_step_tags(CPUARMState *env, uint6= 4_t toaddr, * the page dirty and will use the fast path. */ uint64_t repldata =3D data * 0x0101010101010101ULL; - MemOpIdx oi16 =3D make_memop_idx(MO_TE | MO_128, memidx); + MemOpIdx oi16 =3D make_memop_idx(MO_128, memidx); cpu_st16_mmu(env, toaddr, int128_make128(repldata, repldata), oi16= , ra); mte_mops_set_tags(env, toaddr, 16, *mtedesc); return 16; --=20 2.43.0