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x-vs=clean score=0 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfDbObNHI5kIS49uJNda+cS5IL+A+XO1gqaGRM8AbMRgtMcViVBkOf6X10iuNJNjqDnYXFJ8p/oEIrChihLfcy3Qurp71y4ZMQQsQlbbpy3GzXJcnkO1S 9+wTbrXyCQhB31fYqK1k63UGWwEbgfbXWD+3nEkBVWXMdHoqPXQoCMwdMtZZCbpjRdX2jpblASzIoE8TAsc2CykZ/uRFLORS1nQDC1YtQicoa8UlFBSf2kBP X-CM-Analysis: v=2.3 cv=FKU1Odgs c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=Kd1tUaAdevIA:10 a=yPCof4ZbAAAA:8 a=VwQbUJbxAAAA:8 a=BRfX-kF5JHxRc2FuUgcA:9 a=AjGcO6oz07-iQ99wixmX:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755045AbeD3QWf (ORCPT ); Mon, 30 Apr 2018 12:22:35 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:60058 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754870AbeD3QVl (ORCPT ); Mon, 30 Apr 2018 12:21:41 -0400 From: Boris Ostrovsky To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Cc: jgross@suse.com, Boris Ostrovsky , stable@vger.kernel.org Subject: [PATCH 1/4] xen/PVH: Replace GDT_ENTRY with explicit constant Date: Mon, 30 Apr 2018 12:23:36 -0400 Message-Id: <20180430162339.17143-2-boris.ostrovsky@oracle.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180430162339.17143-1-boris.ostrovsky@oracle.com> References: <20180430162339.17143-1-boris.ostrovsky@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8879 signatures=668698 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=434 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1804300156 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Latest binutils release (2.29.1) will no longer allow proper computation of GDT entries on 32-bits, with warning: arch/x86/xen/xen-pvh.S: Assembler messages: arch/x86/xen/xen-pvh.S:150: Warning: shift count out of range (32 is not between 0 and 31) arch/x86/xen/xen-pvh.S:150: Warning: shift count out of range (40 is not between 0 and 31) arch/x86/xen/xen-pvh.S:150: Warning: shift count out of range (32 is not between 0 and 31) arch/x86/xen/xen-pvh.S:152: Warning: shift count out of range (32 is not between 0 and 31) arch/x86/xen/xen-pvh.S:152: Warning: shift count out of range (40 is not between 0 and 31) arch/x86/xen/xen-pvh.S:152: Warning: shift count out of range (32 is not between 0 and 31) Use explicit value of the entry instead of using GDT_ENTRY() macro. Signed-off-by: Boris Ostrovsky Cc: stable@vger.kernel.org --- arch/x86/xen/xen-pvh.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/xen/xen-pvh.S b/arch/x86/xen/xen-pvh.S index e1a5fbe..934f7d4 100644 --- a/arch/x86/xen/xen-pvh.S +++ b/arch/x86/xen/xen-pvh.S @@ -145,11 +145,11 @@ gdt_start: .quad 0x0000000000000000 /* NULL descriptor */ .quad 0x0000000000000000 /* reserved */ #ifdef CONFIG_X86_64 - .quad GDT_ENTRY(0xa09a, 0, 0xfffff) /* __KERNEL_CS */ + .quad 0x00af9a000000ffff /* __BOOT_CS */ #else - .quad GDT_ENTRY(0xc09a, 0, 0xfffff) /* __KERNEL_CS */ + .quad 0x00cf9a000000ffff /* __BOOT_CS */ #endif - .quad GDT_ENTRY(0xc092, 0, 0xfffff) /* __KERNEL_DS */ + .quad 0x00cf92000000ffff /* __BOOT_DS */ gdt_end: .balign 4 -- 2.9.3