From patchwork Sun Oct 6 21:49:50 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: 13823892 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 3F936CFB424 for ; Sun, 6 Oct 2024 21:56:48 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.811373.1224073 (Exim 4.92) (envelope-from ) id 1sxZF2-0005mu-PV; Sun, 06 Oct 2024 21:56:40 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 811373.1224073; Sun, 06 Oct 2024 21:56:40 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sxZF2-0005lg-F9; Sun, 06 Oct 2024 21:56:40 +0000 Received: by outflank-mailman (input) for mailman id 811373; Sun, 06 Oct 2024 21:56:39 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sxZDf-0007Zk-SN for xen-devel@lists.xenproject.org; Sun, 06 Oct 2024 21:55:15 +0000 Received: from sender3-of-o58.zoho.com (sender3-of-o58.zoho.com [136.143.184.58]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id aa2c19d8-842d-11ef-a0bb-8be0dac302b0; Sun, 06 Oct 2024 23:55:15 +0200 (CEST) Received: by mx.zohomail.com with SMTPS id 1728251449609589.5889422713361; Sun, 6 Oct 2024 14:50:49 -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: aa2c19d8-842d-11ef-a0bb-8be0dac302b0 ARC-Seal: i=1; a=rsa-sha256; t=1728251451; cv=none; d=zohomail.com; s=zohoarc; b=JlJUmd0TOekQy0zfycMfgmBcPBdofA2dqliJymIVQFL4guAVAhMwdknmlbB5pQFcGubRX2o1mtocpOSuZavS7KMhdjQDcYp0T/wyR6oIUJsxC29I+gG9nDqKLRxMFE5/ihFvvOqN+8nFGxsgcEMZI6CqyV2DhoH/hV44zkHE9nw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1728251451; 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=sVdP9gq2A9htJd3rJlMgvzdj4EwJQkEQZWlBQ/0O9Lc=; b=Fsw7UTLm80y0oFSb8nqGBJxXqxI5UIhHEatx3rbFUx+xw0UD7UuCf0V8g8YEORL+bDEnPTfqsqMEKnCp8cBehSc49+gr2QApxMiWF8HGu+8bp5uMKzEwUDpYHVjryQW1II7ucjZOyjThWlJNQ+vXRCJHwjJEXjXbpF95+iBCfLc= 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=1728251451; 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=sVdP9gq2A9htJd3rJlMgvzdj4EwJQkEQZWlBQ/0O9Lc=; b=g+kwgIWsDoyxniQekARXJ3vbglybUrJHSapjlxf9/RclvFxM/JnH0NAs9oGnS7Ru KCHC64QE3x7O1CDPrPcUvVVydjEo4WzyGwT7pxS9Y2Nmbt0yboHEIfUgakeBsA4T+9X 8/jZhdsc64Pa8U1kHA/6gvmtxFMFx/9Vqh2092Hg= 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 v5 39/44] x86/boot: introduce domid field to struct boot_domain Date: Sun, 6 Oct 2024 17:49:50 -0400 Message-Id: <20241006214956.24339-40-dpsmith@apertussolutions.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20241006214956.24339-1-dpsmith@apertussolutions.com> References: <20241006214956.24339-1-dpsmith@apertussolutions.com> MIME-Version: 1.0 X-ZohoMailClient: External Add a domid field to struct boot_domain to hold the assigned domain id for the domain. During initialization, ensure all instances of struct boot_domain have the invalid domid to ensure that the domid must be set either by convention or configuration. Signed-off-by: Daniel P. Smith Reviewed-by: Jason Andryuk --- xen/arch/x86/include/asm/bootdomain.h | 2 ++ xen/arch/x86/setup.c | 12 +++++++----- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/xen/arch/x86/include/asm/bootdomain.h b/xen/arch/x86/include/asm/bootdomain.h index 4285223ac5ab..d6264d554dba 100644 --- a/xen/arch/x86/include/asm/bootdomain.h +++ b/xen/arch/x86/include/asm/bootdomain.h @@ -11,6 +11,8 @@ struct boot_module; struct boot_domain { + domid_t domid; + struct boot_module *kernel; struct boot_module *ramdisk; }; diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index ad4a1f473f6d..a1204b2bd594 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -318,6 +318,9 @@ static struct boot_info __init *multiboot_fill_boot_info(unsigned long mbi_p) bi->mods[bi->nr_modules].type = BOOTMOD_XEN; bi->mods[bi->nr_modules].flags |= BOOTMOD_FLAG_X86_CONSUMED; + for ( i = 0; i < MAX_NR_BOOTDOMS; i++ ) + bi->domains[i].domid = DOMID_INVALID; + return bi; } @@ -959,7 +962,6 @@ static struct domain *__init create_dom0(struct boot_info *bi) }; struct boot_domain *bd = &bi->domains[0]; struct domain *d; - domid_t domid; if ( opt_dom0_pvh ) { @@ -975,15 +977,15 @@ static struct domain *__init create_dom0(struct boot_info *bi) dom0_cfg.flags |= XEN_DOMCTL_CDF_iommu; /* Create initial domain. Not d0 for pvshim. */ - domid = get_initial_domain_id(); - d = domain_create(domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged); + bd->domid = get_initial_domain_id(); + d = domain_create(bd->domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged); if ( IS_ERR(d) ) - panic("Error creating d%u: %ld\n", domid, PTR_ERR(d)); + panic("Error creating d%u: %ld\n", bd->domid, PTR_ERR(d)); init_dom0_cpuid_policy(d); if ( alloc_dom0_vcpu0(d) == NULL ) - panic("Error creating d%uv0\n", domid); + panic("Error creating d%uv0\n", bd->domid); /* Grab the DOM0 command line. */ if ( bd->kernel->cmdline || bi->kextra )