From patchwork Wed Apr 27 17:29:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 12829275 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.gnu.org (lists.gnu.org [209.51.188.17]) (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 C6A03C433EF for ; Wed, 27 Apr 2022 17:36:59 +0000 (UTC) Received: from localhost ([::1]:45142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1njlb0-0007j4-Uv for qemu-devel@archiver.kernel.org; Wed, 27 Apr 2022 13:36:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42296) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njlUU-0004ms-VZ for qemu-devel@nongnu.org; Wed, 27 Apr 2022 13:30:14 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:21226) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1njlUT-0002aA-8k for qemu-devel@nongnu.org; Wed, 27 Apr 2022 13:30:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651080612; 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=4yKM7F9RXp6EXuFbg8mXwP2PsK6u5eSTJyT+LzdhNyk=; b=iJGUEEOjHpHEYcpmBMFft4YLRhpz1NEJRK+gaOdxEiGzL2R6CkHQY4NT2SYQNCywPwrQpg nmctK2gNq8J994UrM96YvDHqUxlNggsQu8fz0vuuj/YE7LSB3RE7kwyxc4rsjjpQ2E0TDq ZbC6xaTAcyodh6dMLqK9l2QZ1Ovghm8= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-425-9NVFOV62MtG43HOqXk67Xw-1; Wed, 27 Apr 2022 13:30:09 -0400 X-MC-Unique: 9NVFOV62MtG43HOqXk67Xw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id AE6EF85A5BE; Wed, 27 Apr 2022 17:30:08 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.9]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 51D4342D3C1; Wed, 27 Apr 2022 17:30:08 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 9C8D11800D6C; Wed, 27 Apr 2022 19:29:52 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 8/9] i386: factor out x86_firmware_configure() Date: Wed, 27 Apr 2022 19:29:51 +0200 Message-Id: <20220427172952.2986839-9-kraxel@redhat.com> In-Reply-To: <20220427172952.2986839-1-kraxel@redhat.com> References: <20220427172952.2986839-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , =?utf-8?q?Daniel_P_=2E_Berrang?= =?utf-8?q?=C3=A9?= , "Michael S . Tsirkin" , Richard Henderson , Xiaoyao Li , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Gerd Hoffmann , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" move sev firmware setup to separate function so it can be used from other code paths. No functional change. Signed-off-by: Gerd Hoffmann Tested-by: Xiaoyao Li Reviewed-by: Daniel P. Berrangé Reviewed-by: Philippe Mathieu-Daudé Acked-by: Michael S. Tsirkin Message-Id: <20220425135051.551037-3-kraxel@redhat.com> --- include/hw/i386/x86.h | 3 +++ hw/i386/pc_sysfw.c | 36 ++++++++++++++++++++++-------------- 2 files changed, 25 insertions(+), 14 deletions(-) diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h index 916cc325eeb1..4841a49f86c0 100644 --- a/include/hw/i386/x86.h +++ b/include/hw/i386/x86.h @@ -140,4 +140,7 @@ void gsi_handler(void *opaque, int n, int level); void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name); DeviceState *ioapic_init_secondary(GSIState *gsi_state); +/* pc_sysfw.c */ +void x86_firmware_configure(void *ptr, int size); + #endif diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c index 0540047bad22..c8d9e71b889b 100644 --- a/hw/i386/pc_sysfw.c +++ b/hw/i386/pc_sysfw.c @@ -147,7 +147,6 @@ static void pc_system_flash_map(PCMachineState *pcms, MemoryRegion *flash_mem; void *flash_ptr; int flash_size; - int ret; assert(PC_MACHINE_GET_CLASS(pcms)->pci_enabled); @@ -195,19 +194,7 @@ static void pc_system_flash_map(PCMachineState *pcms, if (sev_enabled()) { flash_ptr = memory_region_get_ram_ptr(flash_mem); flash_size = memory_region_size(flash_mem); - /* - * OVMF places a GUIDed structures in the flash, so - * search for them - */ - pc_system_parse_ovmf_flash(flash_ptr, flash_size); - - ret = sev_es_save_reset_vector(flash_ptr, flash_size); - if (ret) { - error_report("failed to locate and/or save reset vector"); - exit(1); - } - - sev_encrypt_flash(flash_ptr, flash_size, &error_fatal); + x86_firmware_configure(flash_ptr, flash_size); } } } @@ -259,3 +246,24 @@ void pc_system_firmware_init(PCMachineState *pcms, pc_system_flash_cleanup_unused(pcms); } + +void x86_firmware_configure(void *ptr, int size) +{ + int ret; + + /* + * OVMF places a GUIDed structures in the flash, so + * search for them + */ + pc_system_parse_ovmf_flash(ptr, size); + + if (sev_enabled()) { + ret = sev_es_save_reset_vector(ptr, size); + if (ret) { + error_report("failed to locate and/or save reset vector"); + exit(1); + } + + sev_encrypt_flash(ptr, size, &error_fatal); + } +}