From patchwork Fri Nov 10 19:19:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongjiu Geng X-Patchwork-Id: 10052845 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CC9656032D for ; Fri, 10 Nov 2017 11:14:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A6C622B006 for ; Fri, 10 Nov 2017 11:14:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BA2E2B03C; Fri, 10 Nov 2017 11:14:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.0 required=2.0 tests=BAYES_00, DATE_IN_FUTURE_06_12, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2B4DD2B006 for ; Fri, 10 Nov 2017 11:14:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753066AbdKJLOt (ORCPT ); Fri, 10 Nov 2017 06:14:49 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10507 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752985AbdKJLOd (ORCPT ); Fri, 10 Nov 2017 06:14:33 -0500 Received: from 172.30.72.60 (EHLO DGGEMS403-HUB.china.huawei.com) ([172.30.72.60]) by dggrg05-dlp.huawei.com (MOS 4.4.6-GA FastPath queued) with ESMTP id DKR46784; Fri, 10 Nov 2017 19:14:15 +0800 (CST) Received: from localhost.localdomain (10.143.28.90) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.361.1; Fri, 10 Nov 2017 19:14:03 +0800 From: Dongjiu Geng To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v12 06/12] target-arm: kvm64: detect whether can set vsesr_el2 Date: Sat, 11 Nov 2017 03:19:45 +0800 Message-ID: <1510341591-22817-7-git-send-email-gengdongjiu@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1510341591-22817-1-git-send-email-gengdongjiu@huawei.com> References: <1510341591-22817-1-git-send-email-gengdongjiu@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.143.28.90] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090201.5A058A08.022A, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ad27d86be7ac10c5644c1703eca0c064 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Check if kvm can support to set vsesr_el2 value for vcpu. When guest takes a virtual SError interrupt exception, this value will provides syndrome value reported into ESR_EL1 ISS filed. Signed-off-by: Dongjiu Geng Signed-off-by: Quanming Wu --- Detect whether KVM has the capability to set ESR instead of detecting CPU RAS capability is discussed here: https://www.spinics.net/lists/kvm-arm/msg27150.html https://www.spinics.net/lists/arm-kernel/msg604440.html --- target/arm/kvm64.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index a16abc8..af8ebc9 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -980,3 +980,9 @@ bool kvm_arm_handle_debug(CPUState *cs, struct kvm_debug_exit_arch *debug_exit) return false; } + +static bool kvm_can_set_vcpu_esr(struct KVMState *state) +{ + int ret = kvm_check_extension(state, KVM_CAP_ARM_INJECT_SERROR_ESR); + return (ret) ? true : false; +}