From nobody Tue Dec 16 11:49:27 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1697106578; cv=none; d=zohomail.com; s=zohoarc; b=YuLbgueBVBHWhw2chzW4Rw9Kggl8CeRwHo0cZSOeMYQaRvetUL1IzCPH5ULncr+C8bqly/3pAYeKTPohOVtlbG7F1a9PmivO/lr5sAx7X2xcKZVcASrgMA9IfqB7Ujf3segnujLUMKpHPUbSLjkz5h5eaWqq6uAP4GPCHqbGr/I= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1697106578; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=PviiqUEUbQaeTiS5KocMEmM4XhHcmIxCc43XM33ZiBE=; b=S1y4g7tvS3+rxEx3KIp/LxBXoMIgKLGXuxH3rgsfhusQofKRlvBU+mgtKG4QhwQ1ZiYx3sQy/tCNVX2Izs0SAkKdNmhfn5Nzyjo7rVA8cOv0wqSE/EZAV/cFYJGESTlfy7GLaI0UPti9Epr/P18AICxNKZc0MuqweC2TsWyL/LA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1697106578354806.8137491773107; Thu, 12 Oct 2023 03:29:38 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qqswN-0003UZ-L5; Thu, 12 Oct 2023 06:29:15 -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 1qqswM-0003UC-NK for qemu-devel@nongnu.org; Thu, 12 Oct 2023 06:29:14 -0400 Received: from dfw.source.kernel.org ([139.178.84.217]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqswL-0008Gu-57 for qemu-devel@nongnu.org; Thu, 12 Oct 2023 06:29:14 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 678BE61D70; Thu, 12 Oct 2023 10:29:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C60CC433C8; Thu, 12 Oct 2023 10:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1697106551; bh=pUW2UZ0iy4cmzd6/+KDXWEa/Dy0ELBQNtzS85l2Lunk=; h=From:To:Cc:Subject:Date:From; b=brE3CEeTWq27Cqw8KEMugSZoqYW30hCkl4n/stfchAv4ITSXMFJSE8EKQRRAjCFrn AdOD0ZDpihTgzC9V36GYQ23NrFGDm186yigFclM080X2lmXPpu73yTJOCX3rAzbmBQ l1dLuvqQjCAGHodCUUS6ezGo9yVtSX1IpTTySYLGav7LZkrRo3q9CJfd9UQzvl02SL z7CJvRM4J0+Mtz6iKKAn0Vkniv80Rgt41ZvAdzMMyb3hubChs9OS7W0od5/E/A6/8R /ejjo5niRARbD4QXsCST7aVe8ZeTeYpy5vs0/OzMeDSBg/iSPe2yQJuaFSDhEwK3Lv SNnXAAoc66RIg== From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= To: Gabriel Somlo , "Michael S. Tsirkin" , qemu-devel@nongnu.org Cc: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Alistair Francis , =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= Subject: [PATCH v2] riscv, qemu_fw_cfg: Add support for RISC-V architecture Date: Thu, 12 Oct 2023 12:28:52 +0200 Message-Id: <20231012102852.234442-1-bjorn@kernel.org> X-Mailer: git-send-email 2.39.2 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=lists.gnu.org; Received-SPF: pass client-ip=139.178.84.217; envelope-from=bjorn@kernel.org; helo=dfw.source.kernel.org X-Spam_score_int: -70 X-Spam_score: -7.1 X-Spam_bar: ------- X-Spam_report: (-7.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @kernel.org) X-ZM-MESSAGEID: 1697106579835100001 From: Bj=C3=B6rn T=C3=B6pel Qemu fw_cfg support was missing for RISC-V, which made it hard to do proper vmcore dumps from qemu. Add the missing RISC-V arch-defines. You can now do vmcore dumps from qemu. Add "-device vmcoreinfo" to the qemu command-line. From the qemu monitor: (qemu) dump-guest-memory vmcore The vmcore can now be used, e.g., with the "crash" utility. Acked-by: "Michael S. Tsirkin" Acked-by: Alistair Francis Tested-by: Cl=C3=A9ment L=C3=A9ger Signed-off-by: Bj=C3=B6rn T=C3=B6pel --- v2: Fixed typo (Cl=C3=A9ment) ...and collected A-b/T-bs --- drivers/firmware/Kconfig | 2 +- drivers/firmware/qemu_fw_cfg.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index b59e3041fd62..f05ff56629b3 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -155,7 +155,7 @@ config RASPBERRYPI_FIRMWARE =20 config FW_CFG_SYSFS tristate "QEMU fw_cfg device support in sysfs" - depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86) + depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || RISCV || SPARC= || X86) depends on HAS_IOPORT_MAP default n help diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index a69399a6b7c0..1448f61173b3 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -211,7 +211,7 @@ static void fw_cfg_io_cleanup(void) =20 /* arch-specific ctrl & data register offsets are not available in ACPI, D= T */ #if !(defined(FW_CFG_CTRL_OFF) && defined(FW_CFG_DATA_OFF)) -# if (defined(CONFIG_ARM) || defined(CONFIG_ARM64)) +# if (defined(CONFIG_ARM) || defined(CONFIG_ARM64) || defined(CONFIG_RISCV= )) # define FW_CFG_CTRL_OFF 0x08 # define FW_CFG_DATA_OFF 0x00 # define FW_CFG_DMA_OFF 0x10 base-commit: 1c8b86a3799f7e5be903c3f49fcdaee29fd385b5 --=20 2.39.2