From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23AD9C433EF for ; Thu, 18 Nov 2021 14:06:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D6CDB60EFD for ; Thu, 18 Nov 2021 14:05:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D6CDB60EFD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:55410 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mni34-0005hN-RQ for qemu-devel@archiver.kernel.org; Thu, 18 Nov 2021 09:05:58 -0500 Received: from eggs.gnu.org ([209.51.188.92]:56830) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mnhaT-0008QO-9A for qemu-devel@nongnu.org; Thu, 18 Nov 2021 08:36:25 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:43272) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mnhaR-0002qQ-AT for qemu-devel@nongnu.org; Thu, 18 Nov 2021 08:36:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1637242582; 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=ytnUUif25oYMkqa8jMsmzRzFU3UWIYFhkH5hBybYE+I=; b=YGLCfqWEq5IA8nLRebbM/E4yNw0jamkElBXMh41ufBujzq9njrKwCJpij77umTj7PGkj8J tld4LacAnZRlS/zb0QxMLryWhzkDV5xu0ZDnPIJwhfcwNEg6YgzWTdz+Pb07LEWtu7iy0G aFp0J4O2A6xaHoSghl6uSw8myKZZSCI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-413-fe5sf_YwNa6xoEFepYn9eA-1; Thu, 18 Nov 2021 08:36:19 -0500 X-MC-Unique: fe5sf_YwNa6xoEFepYn9eA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 141CD100E320; Thu, 18 Nov 2021 13:36:18 +0000 (UTC) Received: from localhost.localdomain.com (unknown [10.33.36.247]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4BB6A62A41; Thu, 18 Nov 2021 13:36:16 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PULL 6/6] target/i386/sev: Replace qemu_map_ram_ptr with address_space_map Date: Thu, 18 Nov 2021 13:35:32 +0000 Message-Id: <20211118133532.2029166-7-berrange@redhat.com> In-Reply-To: <20211118133532.2029166-1-berrange@redhat.com> References: <20211118133532.2029166-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.698, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , kvm@vger.kernel.org, Marcelo Tosatti , Markus Armbruster , Dov Murik , Brijesh Singh , Paolo Bonzini , Eric Blake Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Dov Murik Use address_space_map/unmap and check for errors. Signed-off-by: Dov Murik Acked-by: Brijesh Singh [Two lines wrapped for length - Daniel] Signed-off-by: Daniel P. Berrangé --- target/i386/sev.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/target/i386/sev.c b/target/i386/sev.c index 4fd258a570..025ff7a6f8 100644 --- a/target/i386/sev.c +++ b/target/i386/sev.c @@ -37,6 +37,7 @@ #include "qapi/qmp/qerror.h" #include "exec/confidential-guest-support.h" #include "hw/i386/pc.h" +#include "exec/address-spaces.h" #define TYPE_SEV_GUEST "sev-guest" OBJECT_DECLARE_SIMPLE_TYPE(SevGuestState, SEV_GUEST) @@ -1232,6 +1233,9 @@ bool sev_add_kernel_loader_hashes(SevKernelLoaderContext *ctx, Error **errp) uint8_t kernel_hash[HASH_SIZE]; uint8_t *hashp; size_t hash_len = HASH_SIZE; + hwaddr mapped_len = sizeof(*padded_ht); + MemTxAttrs attrs = { 0 }; + bool ret = true; /* * Only add the kernel hashes if the sev-guest configuration explicitly @@ -1292,7 +1296,12 @@ bool sev_add_kernel_loader_hashes(SevKernelLoaderContext *ctx, Error **errp) * Populate the hashes table in the guest's memory at the OVMF-designated * area for the SEV hashes table */ - padded_ht = qemu_map_ram_ptr(NULL, area->base); + padded_ht = address_space_map(&address_space_memory, area->base, + &mapped_len, true, attrs); + if (!padded_ht || mapped_len != sizeof(*padded_ht)) { + error_setg(errp, "SEV: cannot map hashes table guest memory area"); + return false; + } ht = &padded_ht->ht; ht->guid = sev_hash_table_header_guid; @@ -1314,10 +1323,13 @@ bool sev_add_kernel_loader_hashes(SevKernelLoaderContext *ctx, Error **errp) memset(padded_ht->padding, 0, sizeof(padded_ht->padding)); if (sev_encrypt_flash((uint8_t *)padded_ht, sizeof(*padded_ht), errp) < 0) { - return false; + ret = false; } - return true; + address_space_unmap(&address_space_memory, padded_ht, + mapped_len, true, mapped_len); + + return ret; } static void -- 2.31.1