From patchwork Sun Feb 28 11:19:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 63148 Delivered-To: patch@linaro.org Received: by 10.112.199.169 with SMTP id jl9csp731274lbc; Sun, 28 Feb 2016 03:25:36 -0800 (PST) X-Received: by 10.140.91.109 with SMTP id y100mr12666160qgd.42.1456658725519; Sun, 28 Feb 2016 03:25:25 -0800 (PST) Return-Path: Received: from lists.xen.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id v65si9784334qka.89.2016.02.28.03.25.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 28 Feb 2016 03:25:25 -0800 (PST) Received-SPF: neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) smtp.mailfrom=xen-devel-bounces@lists.xen.org Received: from localhost ([127.0.0.1] helo=lists.xen.org) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aZzSb-0005pa-Qm; Sun, 28 Feb 2016 11:24:25 +0000 Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.84) (envelope-from ) id 1aZzSb-0005oL-AD for xen-devel@lists.xen.org; Sun, 28 Feb 2016 11:24:25 +0000 Received: from [193.109.254.147] by server-4.bemta-14.messagelabs.com id E2/55-03301-8E8D2D65; Sun, 28 Feb 2016 11:24:24 +0000 X-Env-Sender: zhaoshenglong@huawei.com X-Msg-Ref: server-4.tower-27.messagelabs.com!1456658628!26350488!1 X-Originating-IP: [58.251.152.64] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.11; banners=-,-,- X-VirusChecked: Checked Received: (qmail 25452 invoked from network); 28 Feb 2016 11:24:22 -0000 Received: from szxga01-in.huawei.com (HELO szxga01-in.huawei.com) (58.251.152.64) by server-4.tower-27.messagelabs.com with RC4-SHA encrypted SMTP; 28 Feb 2016 11:24:22 -0000 Received: from 172.24.1.51 (EHLO szxeml432-hub.china.huawei.com) ([172.24.1.51]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DFJ26936; Sun, 28 Feb 2016 19:20:27 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml432-hub.china.huawei.com (10.82.67.209) with Microsoft SMTP Server id 14.3.235.1; Sun, 28 Feb 2016 19:20:18 +0800 From: Shannon Zhao To: Date: Sun, 28 Feb 2016 19:19:02 +0800 Message-ID: <1456658360-16080-7-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1456658360-16080-1-git-send-email-zhaoshenglong@huawei.com> References: <1456658360-16080-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020204.56D2D7FB.0086, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: c8d8c9d0b738d8cbf2d1b93167cce3a0 Cc: peter.huangpeng@huawei.com, zhaoshenglong@huawei.com, stefano.stabellini@citrix.com, ian.campbell@citrix.com, shannon.zhao@linaro.org Subject: [Xen-devel] [PATCH v4 06/24] arm/acpi: Prepare FADT table for Dom0 X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" From: Shannon Zhao Copy and modify FADT table before passing it to Dom0. Set PSCI_COMPLIANT and PSCI_USE_HVC. Signed-off-by: Shannon Zhao --- xen/arch/arm/domain_build.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index b10a69d..f041a8a 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -1357,6 +1357,44 @@ static int prepare_dtb(struct domain *d, struct kernel_info *kinfo) } #ifdef CONFIG_ACPI + +static int acpi_create_fadt(struct domain *d, struct membank tbl_add[]) +{ + struct acpi_table_header *table = NULL; + struct acpi_table_fadt *fadt = NULL; + u64 table_size; + acpi_status status; + u8 *base_ptr; + u8 checksum; + + status = acpi_get_table(ACPI_SIG_FADT, 0, &table); + + if ( ACPI_FAILURE(status) ) + { + const char *msg = acpi_format_exception(status); + + printk("Failed to get FADT table, %s\n", msg); + return -EINVAL; + } + + table_size = table->length; + base_ptr = d->arch.efi_acpi_table + + acpi_get_table_offset(tbl_add, TBL_FADT); + ACPI_MEMCPY(base_ptr, table, table_size); + fadt = (struct acpi_table_fadt *)base_ptr; + + /* Set PSCI_COMPLIANT and PSCI_USE_HVC */ + fadt->arm_boot_flags |= (ACPI_FADT_PSCI_COMPLIANT | ACPI_FADT_PSCI_USE_HVC); + checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, fadt), table_size); + fadt->header.checksum -= checksum; + + tbl_add[TBL_FADT].start = d->arch.efi_acpi_gpa + + acpi_get_table_offset(tbl_add, TBL_FADT); + tbl_add[TBL_FADT].size = table_size; + + return 0; +} + static int estimate_acpi_efi_size(struct domain *d, struct kernel_info *kinfo) { u64 efi_size, acpi_size = 0, addr; @@ -1401,6 +1439,7 @@ static int prepare_acpi(struct domain *d, struct kernel_info *kinfo) { int rc = 0; int order; + struct membank tbl_add[TBL_MMAX] = {}; rc = estimate_acpi_efi_size(d, kinfo); if ( rc != 0 ) @@ -1419,6 +1458,10 @@ static int prepare_acpi(struct domain *d, struct kernel_info *kinfo) * region. So we use it as the ACPI table mapped address. */ d->arch.efi_acpi_gpa = kinfo->gnttab_start; + rc = acpi_create_fadt(d, tbl_add); + if ( rc != 0 ) + return rc; + return 0; } #else