From nobody Thu Dec 25 08:55:49 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 DBF9E54F99 for ; Fri, 19 Jan 2024 14:54:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705676083; cv=none; b=DrP6aYcw2c2zmYdiK4uXy4p0HDKopMBc5C94tuN4Dpi/I3/E0Yi6Ty70cN6tLwDrHhNvgviK/qvA2CsSfdd32vhUegF2q2sm1OZPZDa5hq+TL5GyD6wtLMLnk+4DoWyFyABaqbtWisAZuZT0sALzkMbA+37QefviYcFPXsVOT4E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705676083; c=relaxed/simple; bh=XhmWHnKNjQt4hKXjEYLb81eIOcvKOMTGJnj1T40tBWY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-type; b=nb/Oh8IoL24kbqWjMVBu8PFjNIqGUFWZdHqZwWtqtoamiGRuWVkd/Qe3LtIDiRWTxT+lJLXfbqpq/KBtxsG8/MscKfKuZJ9Kxocl9SSf60SCIt2bm3hYYdAXkr1AtZ60LlhiQsO9DMrLfRgc3UEWzWfd9Ank0H6eUHrIH90Bm/s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ZFynpPgp; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZFynpPgp" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1705676081; 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=YldSOlh0hkcoW/MWmNQsk4AfGocgJu1kcEOopM/OxN4=; b=ZFynpPgpffaHwiSlF1dOzGISyn3xWR2A/E5UKq/KRmMxfP+rimVbgjoyb+2WVuqLd0zIcf ArwV98ctpwrQGyrqMV5hiP4vONZoG7JFT0Tr0C1uw1SwduOkt7qeIgghweuj/CD7FWG3GC w+zSkVneapWiKhm46KKBFJD1nmdVAx0= 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-142-SZO2mk4PNgKXUDyiPm7Mhg-1; Fri, 19 Jan 2024 09:54:33 -0500 X-MC-Unique: SZO2mk4PNgKXUDyiPm7Mhg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (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 3C41183DE48; Fri, 19 Jan 2024 14:54:30 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.116.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id 189422949; Fri, 19 Jan 2024 14:54:23 +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, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-mips@vger.kernel.org, linux-riscv@lists.infradead.org, loongarch@lists.linux.dev, akpm@linux-foundation.org, ebiederm@xmission.com, hbathini@linux.ibm.com, piliu@redhat.com, viro@zeniv.linux.org.uk, Baoquan He Subject: [PATCH v2 13/14] riscv, crash: wrap crash dumping code into crash related ifdefs Date: Fri, 19 Jan 2024 22:52:40 +0800 Message-ID: <20240119145241.769622-14-bhe@redhat.com> In-Reply-To: <20240119145241.769622-1-bhe@redhat.com> References: <20240119145241.769622-1-bhe@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Content-Type: text/plain; charset="utf-8" Now crash codes under kernel/ folder has been split out from kexec code, crash dumping can be separated from kexec reboot in config items on risc-v with some adjustments. Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery, and use IS_ENABLED(CONFIG_CRASH_RESERVE) check to decide if compiling in the crashkernel reservation code. Signed-off-by: Baoquan He --- arch/riscv/kernel/elf_kexec.c | 9 +++++++-- arch/riscv/mm/init.c | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c index 5bd1ec3341fe..54260c16f991 100644 --- a/arch/riscv/kernel/elf_kexec.c +++ b/arch/riscv/kernel/elf_kexec.c @@ -117,6 +117,7 @@ static int elf_find_pbase(struct kimage *image, unsigne= d long kernel_len, return ret; } =20 +#ifdef CONFIG_CRASH_DUMP static int get_nr_ram_ranges_callback(struct resource *res, void *arg) { unsigned int *nr_ranges =3D arg; @@ -189,6 +190,7 @@ static char *setup_kdump_cmdline(struct kimage *image, = char *cmdline, cmdline_ptr[COMMAND_LINE_SIZE - 1] =3D '\0'; return cmdline_ptr; } +#endif =20 static void *elf_kexec_load(struct kimage *image, char *kernel_buf, unsigned long kernel_len, char *initrd, @@ -196,12 +198,11 @@ static void *elf_kexec_load(struct kimage *image, cha= r *kernel_buf, unsigned long cmdline_len) { int ret; + void *fdt; unsigned long old_kernel_pbase =3D ULONG_MAX; unsigned long new_kernel_pbase =3D 0UL; unsigned long initrd_pbase =3D 0UL; - unsigned long headers_sz; unsigned long kernel_start; - void *fdt, *headers; struct elfhdr ehdr; struct kexec_buf kbuf; struct kexec_elf_info elf_info; @@ -227,8 +228,11 @@ static void *elf_kexec_load(struct kimage *image, char= *kernel_buf, kbuf.buf_min =3D new_kernel_pbase + kernel_len; kbuf.buf_max =3D ULONG_MAX; =20 +#ifdef CONFIG_CRASH_DUMP /* Add elfcorehdr */ if (image->type =3D=3D KEXEC_TYPE_CRASH) { + void *headers; + unsigned long headers_sz; ret =3D prepare_elf_headers(&headers, &headers_sz); if (ret) { pr_err("Preparing elf core header failed\n"); @@ -264,6 +268,7 @@ static void *elf_kexec_load(struct kimage *image, char = *kernel_buf, } cmdline =3D modified_cmdline; } +#endif =20 #ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY /* Add purgatory to the image */ diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index a65937336cdc..f580d1f6ee13 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -1354,7 +1354,7 @@ static void __init arch_reserve_crashkernel(void) bool high =3D false; int ret; =20 - if (!IS_ENABLED(CONFIG_KEXEC_CORE)) + if (!IS_ENABLED(CONFIG_CRASH_RESERVE)) return; =20 ret =3D parse_crashkernel(cmdline, memblock_phys_mem_size(), --=20 2.41.0