From nobody Tue Feb 10 09:24:49 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1524487322206310.0441261584057; Mon, 23 Apr 2018 05:42:02 -0700 (PDT) Received: from localhost ([::1]:43706 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fAan8-0007c9-60 for importer@patchew.org; Mon, 23 Apr 2018 08:41:58 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55357) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fAae4-0001Uf-Rc for qemu-devel@nongnu.org; Mon, 23 Apr 2018 08:32:40 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fAae3-0008A8-Mm for qemu-devel@nongnu.org; Mon, 23 Apr 2018 08:32:36 -0400 Received: from mail-lf0-x244.google.com ([2a00:1450:4010:c07::244]:35716) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fAae3-00089M-Ey for qemu-devel@nongnu.org; Mon, 23 Apr 2018 08:32:35 -0400 Received: by mail-lf0-x244.google.com with SMTP id r125-v6so14700697lfe.2 for ; Mon, 23 Apr 2018 05:32:35 -0700 (PDT) Received: from gmail.com (81-231-232-130-no39.tbcn.telia.com. [81.231.232.130]) by smtp.gmail.com with ESMTPSA id d127-v6sm2801889lfe.64.2018.04.23.05.32.32 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Apr 2018 05:32:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=g5+hLSB7T6Qdh89m4XIC2iBR45C3ZEBkN0qwtxkgXbo=; b=SnV7L8qv9amvPyvH0q40ux89UnZTnsczUjX3ZIecD0vHelV7tUFu7twzTWCaXrSg98 PkKQJAZDsL5XLimjIO4299YMg58OefuScoXvwtMRlqXQlgcZU/FpFnB29Gcg0cktcBct tyT+RIMfAHduWe/dFmwtxwB+jF8HrtzA2llquyyQHHMqPxOu6XK4zRdYGXPzIuSQguPN kpiLlo0h7lTTG2OEmA/xgso8EU5ErdeFtEz3QEp9CWmSuCTjNsme3qzmhMexAOp8TtFc NWeqWh6v23WAEljBkokurTAaY/4t+qCMnvmtoqiV5kxhIhP72vBXIbkNTDjixFOT6zrr xBmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=g5+hLSB7T6Qdh89m4XIC2iBR45C3ZEBkN0qwtxkgXbo=; b=QI4gywOr/obdcsd5O+9mSzKyZM1e3pjRe+zIjGLIAbp7M86D9VXhr5JiAesISCgifl JU8eutTtz+tBwhuldZNx/4dheMXABJrRil9YqKJOVrmyrvMQqNnmJloyT351wCADLZ/r fc36ndlqRIlP0dUZqKcKEHncJQnJBfFI9VXq5Foeegk0H6s8xVedx+mjHUL6zOQ2k7Jq wtZObfZ0VxXuAeTsk1DMP+nAfuwQTudECT5dzaBTKkhSRbUpgcredJVh4IX0Pa9pmpNR 0idsmlsREmIDclg+oCCQ3me8RNrqchaZsttMkQI65HubJC4PMvlSaoUfwA2OEZ2c9bUm +Dnw== X-Gm-Message-State: ALQs6tAJ22C6MvVFKLgo0DtYuHVFMPXR/VweeXFP9nwEivzqT49Z0m57 G7XmoVjcS/YoeQixEqqedTvr+w== X-Google-Smtp-Source: AB8JxZpeQdP0xx0V8RJbvpluZBgl6NxJRqWze+4n3ZzNwtCOpUURWoS81OtTHjUU/7Z/oM4146r4Kg== X-Received: by 2002:a19:740a:: with SMTP id v10-v6mr322924lfe.59.1524486753886; Mon, 23 Apr 2018 05:32:33 -0700 (PDT) From: "Edgar E. Iglesias" To: qemu-devel@nongnu.org Date: Mon, 23 Apr 2018 14:32:24 +0200 Message-Id: <20180423123225.30503-5-edgar.iglesias@gmail.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180423123225.30503-1-edgar.iglesias@gmail.com> References: <20180423123225.30503-1-edgar.iglesias@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4010:c07::244 Subject: [Qemu-devel] [PATCH v2 4/5] target-microblaze: mmu: Make TLBSX write-only X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: edgar.iglesias@xilinx.com, peter.maydell@linaro.org, sai.pavan.boddu@xilinx.com, frasse.iglesias@gmail.com, alistair@alistair23.me, richard.henderson@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: "Edgar E. Iglesias" Make TLBSX write-only and guest-error log reads from it. Reviewed-by: Alistair Francis Signed-off-by: Edgar E. Iglesias Reviewed-by: Richard Henderson --- target/microblaze/mmu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/target/microblaze/mmu.c b/target/microblaze/mmu.c index a0f06758f8..8391811900 100644 --- a/target/microblaze/mmu.c +++ b/target/microblaze/mmu.c @@ -182,7 +182,7 @@ done: uint32_t mmu_read(CPUMBState *env, uint32_t rn) { unsigned int i; - uint32_t r; + uint32_t r =3D 0; =20 if (env->mmu.c_mmu < 2 || !env->mmu.c_mmu_tlb_access) { qemu_log_mask(LOG_GUEST_ERROR, "MMU access on MMU-less system\n"); @@ -211,6 +211,9 @@ uint32_t mmu_read(CPUMBState *env, uint32_t rn) } r =3D env->mmu.regs[rn]; break; + case MMU_R_TLBSX: + qemu_log_mask(LOG_GUEST_ERROR, "TLBSX is write-only.\n"); + break; default: r =3D env->mmu.regs[rn]; break; --=20 2.14.1