From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DDB2E26AC3 for ; Sat, 25 Apr 2026 06:32:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777098748; cv=none; b=ZJMAqPXVGN+5Q00psDy7qx/oqKCGLqMmYML6siargz36who0KC6F/BNedDc1eTPwHOlnPvuj84pHMS6BMlj5rWWW6TAu6tpjLmRwmuUclGiCU+t43ZVuP6db/5AHvIr1fbEfj04H9AQK19wiGM7v6NESmxWc+4v5PTas+OQsyGM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777098748; c=relaxed/simple; bh=D++1y5R2jalXhoi+WiSUbNLgGIrGk7orO6+SKMpDukg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KAS2HEL/QvKLcmWbkE/F1VpgW44362INBF1RNwcKMnWlocL9NGlEqKKpwzn0qWcuFpO/g7a2+KBcO5aRTExQxm54UVrAMOGsjVq9gZQovM2QxoawDzp3TQGX13rSxo4YYcG490SqUFZkbVaNZcqazhRVncFxe+D9lIOBMSh7TWo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mBW9X4eA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mBW9X4eA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6669C2BCB0; Sat, 25 Apr 2026 06:32:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777098748; bh=D++1y5R2jalXhoi+WiSUbNLgGIrGk7orO6+SKMpDukg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mBW9X4eAbQOYPZcW40l4zQAIqew5QGz3be1qjlmF2Y+mV2tUnwOiXr9h5VuhlBERz B9yYP3wFQHwDpn2expIhNuCmcO9p7a/lDTEo1cPcN1xxcDpMF/t+EB1tDnI1zbqIAS OsBRbpSCvk5hBA3Qo1YhBuAzFk0K6lMfCpGLYzbsgbwf4ca2mA2z5NxMWjiKKRNG0x M1oau4MAoZoAQrSS/Iry1zAmpP5AH9Z6a4+o14tZVeiKId29IV5Dv/ysEUeZ1dMqc9 KzoopkPTqPz/jKVcF/M82pRaRFtFuM33NtWFHvRFaOID5SL/XjVhi4TitlDxTcGFqf ZMdEXfEDJZ+rQ== From: Guo Ren To: wangruikang@iscas.ac.cn Cc: alex@ghiti.fr, gaohan@iscas.ac.cn, guoren@kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, palmer@dabbelt.com, pjw@kernel.org Subject: Re: Re: [PATCH] riscv: mm: Do not probe satp mode limit if known in FDT Date: Sat, 25 Apr 2026 06:32:23 +0000 Message-ID: <20260425063223.3329222-1-guoren@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <0e139862-d41b-4b46-92f6-a1eb5bffc863@iscas.ac.cn> References: <0e139862-d41b-4b46-92f6-a1eb5bffc863@iscas.ac.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Sorry for the trouble, it seems that some miscommunication has occurred. > While I was able to reproduce this problem in an emulator, I do not have > access to this hardware and had misunderstood the context and the nature > of this platform. I also found this issue in QEMU. It can be easily reproduced with the following modification: diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index a1c323e66d..8c1d92c8dd 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -100,7 +100,7 @@ static const MemMapEntry virt_memmap[] = { [VIRT_IMSIC_S] = { 0x28000000, VIRT_IMSIC_MAX_SIZE }, [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 }, [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 }, - [VIRT_DRAM] = { 0x80000000, 0x0 }, + [VIRT_DRAM] = { 0x800000000000, 0x0 }, }; Best Regards GUO Ren