From patchwork Mon Oct 21 00:45:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Daniel P. Smith" X-Patchwork-Id: 13843432 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 8AA11D3C927 for ; Mon, 21 Oct 2024 00:49:07 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.822921.1236872 (Exim 4.92) (envelope-from ) id 1t2gbN-0003tJ-HR; Mon, 21 Oct 2024 00:48:53 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 822921.1236872; Mon, 21 Oct 2024 00:48:53 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t2gbN-0003t9-Ed; Mon, 21 Oct 2024 00:48:53 +0000 Received: by outflank-mailman (input) for mailman id 822921; Mon, 21 Oct 2024 00:48:52 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1t2gbM-0003Iq-IA for xen-devel@lists.xenproject.org; Mon, 21 Oct 2024 00:48:52 +0000 Received: from sender4-of-o51.zoho.com (sender4-of-o51.zoho.com [136.143.188.51]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 3c3ef1cb-8f46-11ef-99a3-01e77a169b0f; Mon, 21 Oct 2024 02:48:50 +0200 (CEST) Received: by mx.zohomail.com with SMTPS id 1729471605922769.1616730146538; Sun, 20 Oct 2024 17:46:45 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 3c3ef1cb-8f46-11ef-99a3-01e77a169b0f ARC-Seal: i=1; a=rsa-sha256; t=1729471608; cv=none; d=zohomail.com; s=zohoarc; b=BhUoykAv0QlunbmRcqPYtKySMSy9xrRdYPBOvgw+GZZoRmHyK+RxdEaVSNZulXOvG8GWJnzZfbxicwxeQrimZxXInJj5/IjX+j7O4u3q2zrFxqI7tFFY1v+4qLZX3fJzrTXPGTNaabmNcBBgkiDRbW0MHPOlu7/qQ9pYxDt8n04= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1729471608; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=ZZjD4AlskBmTFJGQxv1B5HnCBYZoGhPGwEpU4WRgfog=; b=J4BdJMqbiXxa8CxKKbS0+qX2U82cCngXxAn/5huTQX5nIdswpSqg6v39DWkEl3ZDSDVnkQq2Dzm0pLycnG58dopQYIkbolxn6P2SYmoK1uLM16yZsBiNZIWx4iQtr1p5UFNxo7wt5R3mfm67MnH8EJeam4abPptQCKh7afAlj58= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=apertussolutions.com; spf=pass smtp.mailfrom=dpsmith@apertussolutions.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1729471608; s=zoho; d=apertussolutions.com; i=dpsmith@apertussolutions.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-Id:Message-Id:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Reply-To; bh=ZZjD4AlskBmTFJGQxv1B5HnCBYZoGhPGwEpU4WRgfog=; b=pu8QZfI1ARA9IDzbkIbj6C4cE6Dfp4G1OSyvl9bi6+qcrVINLMqRMxlDc9B6GPIn cpPQgjVrSyn43aq07GYq9WlaMpPh4Q3rwrB9Ryx6ziu7nCA6R5PGsiSiNhXGfg8DTkF +2MvNfe/0Spzvwe6MFUGO8IfXc5r+PS86SAHH+cM= From: "Daniel P. Smith" To: xen-devel@lists.xenproject.org Cc: "Daniel P. Smith" , jason.andryuk@amd.com, christopher.w.clark@gmail.com, stefano.stabellini@amd.com, Jan Beulich , Andrew Cooper , =?utf-8?q?Roger_Pau_Monn=C3=A9?= Subject: [PATCH v7 19/38] x86/boot: convert create_dom0 to use boot info Date: Sun, 20 Oct 2024 20:45:54 -0400 Message-Id: <20241021004613.18793-20-dpsmith@apertussolutions.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20241021004613.18793-1-dpsmith@apertussolutions.com> References: <20241021004613.18793-1-dpsmith@apertussolutions.com> MIME-Version: 1.0 X-ZohoMailClient: External This commit changes create_dom0 to no longer take the individual components and take struct boot_info instead. Internally, it is changed to locate the kernel and ramdisk details from struct boot_info. Signed-off-by: Daniel P. Smith Reviewed-by: Jason Andryuk --- Changes since v5: - change headroom back to unsigned long - make mod_idx unsigned int --- xen/arch/x86/setup.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index 4a482c8aefa4..347b27ad7c6c 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -962,10 +962,8 @@ static unsigned int __init copy_bios_e820(struct e820entry *map, unsigned int li return n; } -static struct domain *__init create_dom0(const module_t *image, - unsigned long headroom, - module_t *initrd, const char *kextra, - const char *loader) +static struct domain *__init create_dom0(const struct boot_info *bi, + const char *kextra) { static char __initdata cmdline[MAX_GUEST_CMDLINE]; @@ -980,9 +978,22 @@ static struct domain *__init create_dom0(const module_t *image, .misc_flags = opt_dom0_msr_relaxed ? XEN_X86_MSR_RELAXED : 0, }, }; + unsigned long headroom; + unsigned int mod_idx = first_boot_module_index(bi, BOOTMOD_RAMDISK); + module_t *image, *initrd; struct domain *d; domid_t domid; + /* Map boot_module to mb1 module for dom0 */ + image = bi->mods[0].mod; + headroom = bi->mods[0].headroom; + + /* Map boot_module to mb1 module for initrd */ + if ( mod_idx < 0 ) + initrd = NULL; + else + initrd = bi->mods[mod_idx].mod; + if ( opt_dom0_pvh ) { dom0_cfg.flags |= (XEN_DOMCTL_CDF_hvm | @@ -1011,7 +1022,7 @@ static struct domain *__init create_dom0(const module_t *image, if ( image->string || kextra ) { if ( image->string ) - safe_strcpy(cmdline, cmdline_cook(__va(image->string), loader)); + safe_strcpy(cmdline, cmdline_cook(__va(image->string), bi->loader)); if ( kextra ) /* kextra always includes exactly one leading space. */ @@ -2123,10 +2134,7 @@ void asmlinkage __init noreturn __start_xen(unsigned long mbi_p) * We're going to setup domain0 using the module(s) that we stashed safely * above our heap. The second module, if present, is an initrd ramdisk. */ - dom0 = create_dom0(bi->mods[0].mod, bi->mods[0].headroom, - initrdidx < bi->nr_modules ? bi->mods[initrdidx].mod - : NULL, - kextra, bi->loader); + dom0 = create_dom0(bi, kextra); if ( !dom0 ) panic("Could not set up DOM0 guest OS\n");