From nobody Tue Dec 16 23:41:40 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6FDFC4332F for ; Wed, 13 Dec 2023 05:58:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235317AbjLMF6k (ORCPT ); Wed, 13 Dec 2023 00:58:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235299AbjLMF6b (ORCPT ); Wed, 13 Dec 2023 00:58:31 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B68C91A2 for ; Tue, 12 Dec 2023 21:58:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1702447108; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fRxSkAGnT4yFqSPEx0cIWjLNx9bSTNsfyZcjQu+z4G0=; b=fgd66BkG57BxEsIiJ3Kj4WEsbgqEM/POUQuv+XVHvOef+Ywp8kg5KaN3hzetvweWG0wcwm sS3H54H3FjI3HmFolQanqMeAoHDwcAD9V0QFkW0Mk4BqGaP7v6hibzRy56/vQooUKMhIBf sK/TjL+YzPbPiDlPyJD+i7lJER7bn2I= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-149-xp-d7U5zMHS8PHJIR1CgUQ-1; Wed, 13 Dec 2023 00:58:24 -0500 X-MC-Unique: xp-d7U5zMHS8PHJIR1CgUQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E9F0080BEC1; Wed, 13 Dec 2023 05:58:23 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.116.83]) by smtp.corp.redhat.com (Postfix) with ESMTP id 42A091C060AF; Wed, 13 Dec 2023 05:58:18 +0000 (UTC) From: Baoquan He To: linux-kernel@vger.kernel.org Cc: kexec@lists.infradead.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-parisc@vger.kernel.org, akpm@linux-foundation.org, joe@perches.com, nathan@kernel.org, conor@kernel.org, Baoquan He Subject: [PATCH v4 5/7] kexec_file, ricv: print out debugging message if required Date: Wed, 13 Dec 2023 13:57:45 +0800 Message-ID: <20231213055747.61826-6-bhe@redhat.com> In-Reply-To: <20231213055747.61826-1-bhe@redhat.com> References: <20231213055747.61826-1-bhe@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Then when specifying '-d' for kexec_file_load interface, loaded locations of kernel/initrd/cmdline etc can be printed out to help debug. Here replace pr_debug() with the newly added kexec_dprintk() in kexec_file loading related codes. And also replace pr_notice() with kexec_dprintk() in elf_kexec_load() because loaded location of purgatory and device tree are only printed out for debugging, it doesn't make sense to always print them out. And also remove kexec_image_info() because the content has been printed out in generic code. Signed-off-by: Baoquan He Reviewed-by: Conor Dooley --- arch/riscv/kernel/elf_kexec.c | 11 ++++++----- arch/riscv/kernel/machine_kexec.c | 26 -------------------------- 2 files changed, 6 insertions(+), 31 deletions(-) diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c index e60fbd8660c4..5bd1ec3341fe 100644 --- a/arch/riscv/kernel/elf_kexec.c +++ b/arch/riscv/kernel/elf_kexec.c @@ -216,7 +216,6 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, if (ret) goto out; kernel_start =3D image->start; - pr_notice("The entry point of kernel at 0x%lx\n", image->start); =20 /* Add the kernel binary to the image */ ret =3D riscv_kexec_elf_load(image, &ehdr, &elf_info, @@ -252,8 +251,8 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, image->elf_load_addr =3D kbuf.mem; image->elf_headers_sz =3D headers_sz; =20 - pr_debug("Loaded elf core header at 0x%lx bufsz=3D0x%lx memsz=3D0x%lx\n", - image->elf_load_addr, kbuf.bufsz, kbuf.memsz); + kexec_dprintk("Loaded elf core header at 0x%lx bufsz=3D0x%lx memsz=3D0x%= lx\n", + image->elf_load_addr, kbuf.bufsz, kbuf.memsz); =20 /* Setup cmdline for kdump kernel case */ modified_cmdline =3D setup_kdump_cmdline(image, cmdline, @@ -275,6 +274,8 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, pr_err("Error loading purgatory ret=3D%d\n", ret); goto out; } + kexec_dprintk("Loaded purgatory at 0x%lx\n", kbuf.mem); + ret =3D kexec_purgatory_get_set_symbol(image, "riscv_kernel_entry", &kernel_start, sizeof(kernel_start), 0); @@ -293,7 +294,7 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, if (ret) goto out; initrd_pbase =3D kbuf.mem; - pr_notice("Loaded initrd at 0x%lx\n", initrd_pbase); + kexec_dprintk("Loaded initrd at 0x%lx\n", initrd_pbase); } =20 /* Add the DTB to the image */ @@ -318,7 +319,7 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, } /* Cache the fdt buffer address for memory cleanup */ image->arch.fdt =3D fdt; - pr_notice("Loaded device tree at 0x%lx\n", kbuf.mem); + kexec_dprintk("Loaded device tree at 0x%lx\n", kbuf.mem); goto out; =20 out_free_fdt: diff --git a/arch/riscv/kernel/machine_kexec.c b/arch/riscv/kernel/machine_= kexec.c index 2d139b724bc8..ed9cad20c039 100644 --- a/arch/riscv/kernel/machine_kexec.c +++ b/arch/riscv/kernel/machine_kexec.c @@ -18,30 +18,6 @@ #include #include =20 -/* - * kexec_image_info - Print received image details - */ -static void -kexec_image_info(const struct kimage *image) -{ - unsigned long i; - - pr_debug("Kexec image info:\n"); - pr_debug("\ttype: %d\n", image->type); - pr_debug("\tstart: %lx\n", image->start); - pr_debug("\thead: %lx\n", image->head); - pr_debug("\tnr_segments: %lu\n", image->nr_segments); - - for (i =3D 0; i < image->nr_segments; i++) { - pr_debug("\t segment[%lu]: %016lx - %016lx", i, - image->segment[i].mem, - image->segment[i].mem + image->segment[i].memsz); - pr_debug("\t\t0x%lx bytes, %lu pages\n", - (unsigned long) image->segment[i].memsz, - (unsigned long) image->segment[i].memsz / PAGE_SIZE); - } -} - /* * machine_kexec_prepare - Initialize kexec * @@ -60,8 +36,6 @@ machine_kexec_prepare(struct kimage *image) unsigned int control_code_buffer_sz =3D 0; int i =3D 0; =20 - kexec_image_info(image); - /* Find the Flattened Device Tree and save its physical address */ for (i =3D 0; i < image->nr_segments; i++) { if (image->segment[i].memsz <=3D sizeof(fdt)) --=20 2.41.0