From patchwork Mon Nov 25 14:58:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yeo Reum Yun X-Patchwork-Id: 13885056 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 1E80FD58D5A for ; Mon, 25 Nov 2024 15:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VnhSSqL8zGEfDJPc8lkG7YTe0QJDcswkvUICNkWf/Pc=; b=Un3C3JuM6ESEvrVMbkiP0k1Usf 2w46Vc/j4OPG51KGcsYxkpH15LqPumM25GuNHt2nuOD4VpW3yUGiEpK+ataepGEPRjqucEbdAxo2V RS5Nrd9KGc4JkqAx8sc57d3s6BFrCb7m1yqs/ty/HSuDmZGeKSf+uDBTBmiaGNJglpvV0rZTLXMC0 qcHuYnAvFMZPL+z+enPIi42X3J0pJdxMIRBsNzG1vWbhijIiNORtANdhpQDetnRtp73GrtQOL8R9a LVjE8H4rXCsMd725J6FvRqRru7LUuki8COlISzamLEFfAywMzu2mgLG9OqIv4em/Y34NLeeKemSpM tqnWD7eA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFaa5-00000008NGZ-1OkG; Mon, 25 Nov 2024 15:00:53 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFaYC-00000008MpL-0RzY for linux-arm-kernel@lists.infradead.org; Mon, 25 Nov 2024 14:58:57 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A56EE1756; Mon, 25 Nov 2024 06:59:25 -0800 (PST) Received: from e129823.cambridge.arm.com (e129823.arm.com [10.1.197.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 532813F66E; Mon, 25 Nov 2024 06:58:53 -0800 (PST) From: Yeoreum Yun To: catalin.marinas@arm.com, will@kernel.org, broonie@kernel.org, sudeep.holla@arm.com, guohanjun@huawei.com, gshan@redhat.com, prarit@redhat.com, Jonathan.Cameron@huawei.com, dwmw@amazon.co.uk, ardb@kernel.org, hagarhem@amazon.com Cc: linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, nd@arm.com, Yeoreum Yun Subject: [PATCH 1/2] arm64/acpi: panic when failed to init acpi table with acpi=force option Date: Mon, 25 Nov 2024 14:58:47 +0000 Message-Id: <20241125145848.506347-2-yeoreum.yun@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241125145848.506347-1-yeoreum.yun@arm.com> References: <20241125145848.506347-1-yeoreum.yun@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241125_065856_186928_509F103B X-CRM114-Status: GOOD ( 10.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org when the acpi=force option is used, the system does not fall back to the device tree (DT). If it fails to initialize the ACPI table, it cannot proceed further. In such cases, the system should invoke panic() to avoid contradicting the user's explicit intent, as failing or proceeding with unintended behavior would violate their wishes. Signed-off-by: Yeoreum Yun Reviewed-by: Mark Brown --- arch/arm64/kernel/acpi.c | 2 ++ 1 file changed, 2 insertions(+) -- LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7} diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index e6f66491fbe9..efdf24ed5c3e 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -225,6 +225,8 @@ void __init acpi_boot_table_init(void) pr_err("Failed to init ACPI tables\n"); if (!param_acpi_force) disable_acpi(); + else + panic("Failed to boot with ACPI tables\n"); } done: From patchwork Mon Nov 25 14:58:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yeo Reum Yun X-Patchwork-Id: 13885057 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 CB980D58D5A for ; Mon, 25 Nov 2024 15:02:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OgpHxSHYeE0VVV4u3LCoM/00cqoc+ttcWa2jSqqak60=; b=vIsgHvMS7GkIyRNlZo0EBNAqUY fv5yn/FYQ1cCyq69B2BSVPo/n5l9Qb6/GkaPZt0/ni1OQgzQxjequdPlAIYqP+kcJARNEi6bMa7kp lI7ZcNfhLg2dcZL+1KHTYzEMF/zK3AkLY0XHYYJa+apYSX5E1yUO8/iQ7BoQjNlAWXmXEJ6GZY010 Yyf14C7q0lWZckG2F1BY5UAp7glIZQCGGFZNuZr4eTw1eWhIMmlR/Wti4Dw1fvnu2G3IBw8FU9Css 3pLwnyzPRJWPVpEmnxSh/oJTRkKtFAKF1TMqPzTKCezbauoL1/6shNL2j/p6g/bhyPHLOjM1pWbcF qsMENmdQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFab0-00000008NQg-3yww; Mon, 25 Nov 2024 15:01:50 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFaYE-00000008MqC-2WrW for linux-arm-kernel@lists.infradead.org; Mon, 25 Nov 2024 14:58:59 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 404C3201B; Mon, 25 Nov 2024 06:59:28 -0800 (PST) Received: from e129823.cambridge.arm.com (e129823.arm.com [10.1.197.6]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id E27E13F66E; Mon, 25 Nov 2024 06:58:55 -0800 (PST) From: Yeoreum Yun To: catalin.marinas@arm.com, will@kernel.org, broonie@kernel.org, sudeep.holla@arm.com, guohanjun@huawei.com, gshan@redhat.com, prarit@redhat.com, Jonathan.Cameron@huawei.com, dwmw@amazon.co.uk, ardb@kernel.org, hagarhem@amazon.com Cc: linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, nd@arm.com, Yeoreum Yun Subject: [PATCH 2/2] efi/fdt: ignore dtb when acpi option is used with force Date: Mon, 25 Nov 2024 14:58:48 +0000 Message-Id: <20241125145848.506347-3-yeoreum.yun@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241125145848.506347-1-yeoreum.yun@arm.com> References: <20241125145848.506347-1-yeoreum.yun@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241125_065858_680095_1EC59BEF X-CRM114-Status: UNSURE ( 9.98 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Since acpi=force doesn't use dt fallback, it's meaningless to load dt from comaand line option or from configuration table. Skip loading dt when acpi=force option is used. otherwise it could produce unnecessary error message while scanning dt if passed dt's format is invalid. Signed-off-by: Yeoreum Yun --- drivers/firmware/efi/libstub/fdt.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c index 6a337f1f8787..04a054393d87 100644 --- a/drivers/firmware/efi/libstub/fdt.c +++ b/drivers/firmware/efi/libstub/fdt.c @@ -251,11 +251,13 @@ efi_status_t allocate_new_fdt_and_exit_boot(void *handle, if (strstr(cmdline_ptr, "dtb=")) efi_err("Ignoring DTB from command line.\n"); } else { - status = efi_load_dtb(image, &fdt_addr, &fdt_size); + if (!strstr(cmdline_ptr, "acpi=force")) { + status = efi_load_dtb(image, &fdt_addr, &fdt_size); - if (status != EFI_SUCCESS && status != EFI_NOT_READY) { - efi_err("Failed to load device tree!\n"); - goto fail; + if (status != EFI_SUCCESS && status != EFI_NOT_READY) { + efi_err("Failed to load device tree!\n"); + goto fail; + } } }