From patchwork Wed Oct 26 19:46:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 13021224 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 22CADC433FE for ; Wed, 26 Oct 2022 19:50:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1onmMe-00046f-3Z; Wed, 26 Oct 2022 15:47:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1onmMN-0002wr-Ob for qemu-devel@nongnu.org; Wed, 26 Oct 2022 15:46:47 -0400 Received: from mail-wm1-x335.google.com ([2a00:1450:4864:20::335]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1onmMM-00073Y-6e for qemu-devel@nongnu.org; Wed, 26 Oct 2022 15:46:43 -0400 Received: by mail-wm1-x335.google.com with SMTP id r6-20020a1c4406000000b003cf4d389c41so1416214wma.3 for ; Wed, 26 Oct 2022 12:46:41 -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:subject:date :message-id:reply-to; bh=FideTTwLBlaM3Uj+ggSbpikD+Db2qX3oNiUh+CsQYlw=; b=yu1ceNDVH81LxEyeI1nO/XErjQQL2jyh42S4582vkKFMIN9r04hTw4O1So+/kBjRMD 5dDipl11lI01ItBtU3AXX3YDpIHXpUoe3DuQoKFxETpRzEL39E9gCUstSgILTblBUjrb LlLYnQV7Fun8K3QHHfZYEItGXDtxjhPFUd82UzJmwovCzQcQJb2WyBJ6qBMJtMivpyZ4 QzeUUtJtQBiJEUB81drjvlK5DcNVkhAj8BRJyYq3Pn9IhWcbm3ux75DVJLgs5RW9Xlrt XRhFcMFGO+97brM5DDGx8LOsbiop90IS6yoy+GV9Lq7zjAXmyKoxrgzUS4jaqYlZpmho Scaw== 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 :subject:date:message-id:reply-to; bh=FideTTwLBlaM3Uj+ggSbpikD+Db2qX3oNiUh+CsQYlw=; b=GZ0SC9jMTWtmAq2+6jHTiHkMgI6OQbE1aI2D68dHLydfYBGbGHBc9gDT4a2zioP9pW 4C1InNHm5mBuxSAv9LCRbK7oE17VKsG54lJxClx2xLHcvb+LJEd1o3psq8Fiu+W1KyCq h/cEtjwnmmgPQcOkcyQWzScp5sVt8xJMqOgEeCA4KvGobV6fHDjzmycuv6f5+JWhTdvx qyIpa9payB3ylxXOyCBHzq518/EHnAcx/dgaXhYpBA07EdgjcUac9EvrLavuglPG2zae N8GIoAMnKV2Oody+CDl0zAb0YFyoD7Ej4I7bNXPm6HtijL4rI9Zxrke1sa5hikSqshWA ICfA== X-Gm-Message-State: ACrzQf2G8LZGsGymTgeJvXbqHoUmPCIhJO7eTkyw0oG+sA0Uym+iIjqO hYZnXxrkkSPhH3h9YmJ9YO6iqA== X-Google-Smtp-Source: AMsMyM6Q38d8s9NFSUAYxIWn49V6Plbc6NoM71jdnUVe4gKryVNqawYUtqkuK53DX/akeRPy82aCEA== X-Received: by 2002:a05:600c:3b97:b0:3c7:14f0:f8d2 with SMTP id n23-20020a05600c3b9700b003c714f0f8d2mr3634432wms.159.1666813598434; Wed, 26 Oct 2022 12:46:38 -0700 (PDT) Received: from localhost.localdomain ([185.126.107.38]) by smtp.gmail.com with ESMTPSA id x13-20020a5d490d000000b00236674840e9sm5908156wrq.59.2022.10.26.12.46.37 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 26 Oct 2022 12:46:38 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: Bernhard Beschow , qemu-devel@nongnu.org Cc: Jiaxun Yang , =?utf-8?q?Herv=C3=A9_Poussineau?= , Aurelien Jarno , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= Subject: [PATCH 3/3] hw/isa/piix4: Correct IRQRC[A:D] reset values Date: Wed, 26 Oct 2022 21:46:19 +0200 Message-Id: <20221026194619.28880-4-philmd@linaro.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221026194619.28880-1-philmd@linaro.org> References: <20221026194619.28880-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::335; envelope-from=philmd@linaro.org; helo=mail-wm1-x335.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: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org IRQRC[A:D] registers reset value is 0x80. We were forcing the MIPS Malta machine routing to be able to boot a Linux kernel without any bootloader. We now have these registers initialized in the Malta machine write_bootloader(), so we can use the correct reset values. Signed-off-by: Philippe Mathieu-Daudé --- hw/isa/piix4.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c index 15f344dbb7..a2165c6a49 100644 --- a/hw/isa/piix4.c +++ b/hw/isa/piix4.c @@ -115,10 +115,10 @@ static void piix4_isa_reset(DeviceState *dev) pci_conf[0x4c] = 0x4d; pci_conf[0x4e] = 0x03; pci_conf[0x4f] = 0x00; - pci_conf[0x60] = 0x0a; // PCI A -> IRQ 10 - pci_conf[0x61] = 0x0a; // PCI B -> IRQ 10 - pci_conf[0x62] = 0x0b; // PCI C -> IRQ 11 - pci_conf[0x63] = 0x0b; // PCI D -> IRQ 11 + pci_conf[0x60] = 0x80; + pci_conf[0x61] = 0x80; + pci_conf[0x62] = 0x80; + pci_conf[0x63] = 0x80; pci_conf[0x69] = 0x02; pci_conf[0x70] = 0x80; pci_conf[0x76] = 0x0c;