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[89.12.240.1]) by smtp.gmail.com with ESMTPSA id w25-20020aa7d299000000b0048789661fa2sm7135587edq.66.2023.01.30.10.50.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Jan 2023 10:50:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=1TCnRtSC/qK36qtxF8mPutKkZQGPygNYFgtr/qGSLHE=; b=ZpmRnEvm56e9GtINB3/sAY/gC7GYWG6AJfr/rAoW8sN7qQYTRWjtIJY8o9KNvxtrmJ Gj9HCZxXscRjDQ/QYN4deGL0Th5GF+hOAvS070kN/mU+IWO0DEwE2Tqf2IouHxnW0j39 x1qhmnMXsXyQxp+S+8uiWdZZOPgp+eyKJOg4laWabzMMV5B8p3REYfzIecK5wEsRJrBV G9WoEDopP4zqAJv+ZSt8HY+ZQqrOcyqt06xawtsrNxzQkgojppigfAntELsi2y0M2f8Z 7FqDs9Gwuvd1CTqVyaeOvG+lrKXofsEf2nY7TMD/H/vpqiK27bfl3tiL0Z6Oxebr3dyW HB9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=1TCnRtSC/qK36qtxF8mPutKkZQGPygNYFgtr/qGSLHE=; b=Yo41EWVsEamsdOzgjh/JBLVf/hekV2ilRNecuDoCcQKLTe5+TAjImuTEoP5oqmxPND jjHN4USPFyWI+FyGVv9cMjI9rwA+VSQls7NzfAs0KaZ+DM582wmYm3E8Ifmy6fnTVou4 d740/7iC+EoCbZ81Z5O/PrksEs8fVSHLBLD9ru/Ulgu9HGMQyspIlAHxUww0wQAJ1KPs QGHIfhRZ5wA+swvHx7Tt8KglMtAj1k6BPmTAa/hwIcNxe/PBVuwr8IbwgurUH0b9YZOW 4OsewLJ9iKddTPRs5o2cBxgWlWDgawAMGcn5RUXCkNHIpC+M9nvaQre3e43k2uEmx9w+ zffQ== X-Gm-Message-State: AFqh2krHuV4OlDr1CbF+iMUIJkNV//cVY/K+6RKcyfGQvh6Rjbcip34Q mt8+j7Y3grKmlXjY/Aa/b7ZMlspCLmQ= X-Google-Smtp-Source: AMrXdXs7pMcSkLIxz0FxirIqy4fybycuayZ55j+Na0VYRZ4wzRxCjof9elrcUspb2EDfCKVP97QXug== X-Received: by 2002:a05:6402:1044:b0:498:8c60:d7d9 with SMTP id e4-20020a056402104400b004988c60d7d9mr51933952edu.12.1675104617645; Mon, 30 Jan 2023 10:50:17 -0800 (PST) From: Bernhard Beschow To: qemu-devel@nongnu.org Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-ppc@nongnu.org, Daniel Henrique Barboza , Greg Kurz , David Gibson , Bernhard Beschow Subject: [PATCH] target/ppc/translate: Add dummy implementation for dcblc instruction Date: Mon, 30 Jan 2023 19:49:50 +0100 Message-Id: <20230130184950.5241-1-shentey@gmail.com> X-Mailer: git-send-email 2.39.1 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=2a00:1450:4864:20::52a; envelope-from=shentey@gmail.com; helo=mail-ed1-x52a.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, FREEMAIL_FROM=0.001, 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1675104699003100003 Content-Type: text/plain; charset="utf-8" The dcblc instruction is used by u-boot in mpc85xx/start.S. Without it, an illegal istruction exception is generated very early in the boot process where the processor is not yet able to handle exceptions. See: https://github.com/u-boot/u-boot/blob/v2023.01/arch/powerpc/cpu/mpc85xx/sta= rt.S#L1840 Signed-off-by: Bernhard Beschow Acked-by: Richard Henderson Reviewed-by: Daniel Henrique Barboza --- target/ppc/translate.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index edb3daa9b5..8c32e697d9 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -5261,6 +5261,14 @@ static void gen_dcbtls(DisasContext *ctx) tcg_temp_free(t0); } =20 +/* dcblc */ +static void gen_dcblc(DisasContext *ctx) +{ + /* + * interpreted as no-op + */ +} + /* dcbz */ static void gen_dcbz(DisasContext *ctx) { @@ -6832,6 +6840,7 @@ GEN_HANDLER_E(dcbtep, 0x1F, 0x1F, 0x09, 0x00000001, P= PC_NONE, PPC2_BOOKE206), GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x00000001, PPC_CACHE), GEN_HANDLER_E(dcbtstep, 0x1F, 0x1F, 0x07, 0x00000001, PPC_NONE, PPC2_BOOKE= 206), GEN_HANDLER_E(dcbtls, 0x1F, 0x06, 0x05, 0x02000001, PPC_BOOKE, PPC2_BOOKE2= 06), +GEN_HANDLER_E(dcblc, 0x1F, 0x06, 0x0c, 0x02000001, PPC_BOOKE, PPC2_BOOKE20= 6), GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03C00001, PPC_CACHE_DCBZ), GEN_HANDLER_E(dcbzep, 0x1F, 0x1F, 0x1F, 0x03C00001, PPC_NONE, PPC2_BOOKE20= 6), GEN_HANDLER(dst, 0x1F, 0x16, 0x0A, 0x01800001, PPC_ALTIVEC), --=20 2.39.1