From patchwork Tue Feb 10 10:03:00 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hogan X-Patchwork-Id: 5805781 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A6E9CBF6C3 for ; Tue, 10 Feb 2015 10:03:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C83E8200E0 for ; Tue, 10 Feb 2015 10:03:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC3B120107 for ; Tue, 10 Feb 2015 10:03:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754780AbbBJKDZ (ORCPT ); Tue, 10 Feb 2015 05:03:25 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:15287 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754756AbbBJKDV (ORCPT ); Tue, 10 Feb 2015 05:03:21 -0500 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 99CAFF26E65E2; Tue, 10 Feb 2015 10:03:17 +0000 (GMT) Received: from LEMAIL01.le.imgtec.org (192.168.152.62) by KLMAIL01.kl.imgtec.org (192.168.5.35) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 10 Feb 2015 10:03:19 +0000 Received: from jhogan-linux.le.imgtec.org (192.168.154.110) by LEMAIL01.le.imgtec.org (192.168.152.62) with Microsoft SMTP Server (TLS) id 14.3.210.2; Tue, 10 Feb 2015 10:03:19 +0000 From: James Hogan To: Paolo Bonzini , Ralf Baechle CC: James Hogan , Paul Burton , Gleb Natapov , , , Subject: [PATCH 2/2] MIPS: Export MSA functions used by lose_fpu(1) for KVM Date: Tue, 10 Feb 2015 10:03:00 +0000 Message-ID: <1423562580-23254-3-git-send-email-james.hogan@imgtec.com> X-Mailer: git-send-email 2.0.5 In-Reply-To: <1423562580-23254-1-git-send-email-james.hogan@imgtec.com> References: <1423562580-23254-1-git-send-email-james.hogan@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [192.168.154.110] Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Export the _save_msa asm function used by the lose_fpu(1) macro to GPL modules so that KVM can make use of it when it is built as a module. This fixes the following build error when CONFIG_KVM=m and CONFIG_CPU_HAS_MSA=y due to commit f798217dfd03 ("KVM: MIPS: Don't leak FPU/DSP to guest"): ERROR: "_save_msa" [arch/mips/kvm/kvm.ko] undefined! Fixes: f798217dfd03 (KVM: MIPS: Don't leak FPU/DSP to guest) Signed-off-by: James Hogan Cc: Paolo Bonzini Cc: Ralf Baechle Cc: Paul Burton Cc: Gleb Natapov Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: # 3.15+ --- Separated from the _save_fp patch so they can be applied separately to stable, since this one only applies since v3.15. --- arch/mips/kernel/mips_ksyms.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c index 167ce3fae398..1a73c6c9e4b7 100644 --- a/arch/mips/kernel/mips_ksyms.c +++ b/arch/mips/kernel/mips_ksyms.c @@ -15,6 +15,7 @@ #include #include #include +#include extern void *__bzero(void *__s, size_t __count); extern long __strncpy_from_kernel_nocheck_asm(char *__to, @@ -36,6 +37,9 @@ extern long __strnlen_user_asm(const char *s); * Core architecture code */ EXPORT_SYMBOL_GPL(_save_fp); +#ifdef CONFIG_CPU_HAS_MSA +EXPORT_SYMBOL_GPL(_save_msa); +#endif /* * String functions