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[192.237.175.120]) by mx.google.com with ESMTPS id k7si317081itk.41.2016.06.22.20.20.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 22 Jun 2016 20:20:40 -0700 (PDT) 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.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bFvAN-0000iV-Hz; Thu, 23 Jun 2016 03:18:55 +0000 Received: from mail6.bemta6.messagelabs.com ([85.158.143.247]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bFvAM-0000i5-D0 for xen-devel@lists.xen.org; Thu, 23 Jun 2016 03:18:54 +0000 Received: from [85.158.143.35] by server-3.bemta-6.messagelabs.com id EF/5E-22092-D155B675; Thu, 23 Jun 2016 03:18:53 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKIsWRWlGSWpSXmKPExsVi9XuGg65saHa 4wdUbvBZLPi5mcWD0OLr7N1MAYxRrZl5SfkUCa8acxldsBT/ZKz69VG1gnM7WxcjFISRwilGi +/JMKGcPo8S+E+sZuxg5OdgEdCU+bpzCDmKLCMhKrO6aww5SxCxwnVHizvttrCAJYYEwiXud8 8BsFgFViZ9v1oE18wp4SCz6dgPMlhDQkFjZO4EFxOYEip+c9YQZxBYScJeYs2YvC0S9oMTJmU /AbGYBCYmDL14wQ/QqSrStP8kGYUtKHFxxgwXCBjr74RzTLkYOINtU4ndr9QRGwVlIJs1CMmk BI9MqRvXi1KKy1CJdI72kosz0jJLcxMwcXUMDM73c1OLixPTUnMSkYr3k/NxNjMDgZACCHYzL /jodYpTkYFIS5bVyyA4X4kvKT6nMSCzOiC8qzUktPsQow8GhJMGrEQKUEyxKTU+tSMvMAcYJT FqCg0dJhNcZJM1bXJCYW5yZDpE6xagoJc57KBgoIQCSyCjNg2uDxeYlRlkpYV5GoEOEeApSi3 IzS1DlXzGKczAqCfPeA5nCk5lXAjf9FdBiJqDFy/rTQRaXJCKkpBoYI6viQk/67lY599D2zDb BYDGv6CVLPty6LF74wKY4Uq1uukS66gK/Lati0kPPsk7YO79djUdPVyGx8e/P58U7wqu/yfqk 8c5ybyxTWnNtS8ruvcZrL+/N2/nRMTZwU212LYeFwDbjxZtkrO81zOCTftLrwr08JtzlrQf7l rJtieLJk2Xu9QcpsRRnJBpqMRcVJwIAh45CLMgCAAA= X-Env-Sender: zhaoshenglong@huawei.com X-Msg-Ref: server-4.tower-21.messagelabs.com!1466651928!14268579!1 X-Originating-IP: [58.251.152.64] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.46; banners=-,-,- X-VirusChecked: Checked Received: (qmail 53847 invoked from network); 23 Jun 2016 03:18:52 -0000 Received: from szxga01-in.huawei.com (HELO szxga01-in.huawei.com) (58.251.152.64) by server-4.tower-21.messagelabs.com with RC4-SHA encrypted SMTP; 23 Jun 2016 03:18:52 -0000 Received: from 172.24.1.36 (EHLO szxeml430-hub.china.huawei.com) ([172.24.1.36]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DMQ09540; Thu, 23 Jun 2016 11:17:44 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml430-hub.china.huawei.com (10.82.67.185) with Microsoft SMTP Server id 14.3.235.1; Thu, 23 Jun 2016 11:17:34 +0800 From: Shannon Zhao To: Date: Thu, 23 Jun 2016 11:16:59 +0800 Message-ID: <1466651824-6964-13-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1466651824-6964-1-git-send-email-zhaoshenglong@huawei.com> References: <1466651824-6964-1-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=0001.0A020203.576B54D9.00D3, 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: db7fb76cf2bffe7bf73a3bd90883b582 Cc: sstabellini@kernel.org, wei.liu2@citrix.com, ian.jackson@eu.citrix.com, peter.huangpeng@huawei.com, julien.grall@arm.com, shannon.zhao@linaro.org, boris.ostrovsky@oracle.com Subject: [Xen-devel] [PATCH v2 12/17] libxl/arm: Add a helper to calculate the ACPI table checksum 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 Signed-off-by: Shannon Zhao --- tools/libxl/libxl_arm_acpi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/libxl/libxl_arm_acpi.c b/tools/libxl/libxl_arm_acpi.c index 45fc354..d8779af 100644 --- a/tools/libxl/libxl_arm_acpi.c +++ b/tools/libxl/libxl_arm_acpi.c @@ -270,6 +270,21 @@ static void make_acpi_dsdt(libxl__gc *gc, struct xc_dom_image *dom) dom->acpitable_size += ROUNDUP(acpitables[DSDT].size, 3); } +static void calculate_checksum(void *table, uint32_t checksum_offset, + uint32_t length) +{ + uint8_t *p, sum = 0; + + p = table; + p[checksum_offset] = 0; + + while ( length-- ) + sum = sum + *p++; + + p = table; + p[checksum_offset] = -sum; +} + int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info, libxl__domain_build_state *state, struct xc_dom_image *dom)