From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CB4DC388F9 for ; Wed, 11 Nov 2020 06:24:18 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F17C720786 for ; Wed, 11 Nov 2020 06:24:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="phaCm8Gr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F17C720786 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Y3M6l1o5JUkeaRs98d9dCidIlfQRThkUgIx24KijgSI=; b=phaCm8GruYSS9k3MKtPesW0/Xc 2CUxk3uhvRpJcEM7Q4yrF14Bme5NMwqPd9Sf8MjRJ1nJL9VqZOa5fbu0YBshfvPWZ0Ak99CF1fcK6 QYEWGW1OkdJxoj4NxTWkV4KqWz0D6jVaSQPCgUKkxY9TgLNlLM0aw9ETfezTs/HhnlDEaoeNIG8JP m4/I8oRtaoYfcnhytkDPLguPbAYiF9LdIqQ39wTENqZeq3xLoCUzvDfqE+kMclbrOQOCqbtGQSY8y BUjv9DzBCQsiDVsagjYa4Len8UPoJdtAd+gzs5UIunyfKKOc/XakIbQQS3RMyZh8ljO12UVxgweJU qRZWrtEg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kcjXq-0000dZ-U5; Wed, 11 Nov 2020 06:23:51 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kcjXh-0000Zj-GI for linux-arm-kernel@lists.infradead.org; Wed, 11 Nov 2020 06:23:42 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9F8F514BF; Tue, 10 Nov 2020 22:23:37 -0800 (PST) Received: from localhost.localdomain (entos-thunderx2-desktop.shanghai.arm.com [10.169.212.215]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 48D123F6CF; Tue, 10 Nov 2020 22:23:31 -0800 (PST) From: Jianyong Wu To: netdev@vger.kernel.org, yangbo.lu@nxp.com, john.stultz@linaro.org, tglx@linutronix.de, pbonzini@redhat.com, sean.j.christopherson@intel.com, maz@kernel.org, richardcochran@gmail.com, Mark.Rutland@arm.com, will@kernel.org, suzuki.poulose@arm.com, Andre.Przywara@arm.com, steven.price@arm.com Subject: [PATCH v15 9/9] arm64: Add kvm capability check extension for ptp_kvm Date: Wed, 11 Nov 2020 14:22:11 +0800 Message-Id: <20201111062211.33144-10-jianyong.wu@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201111062211.33144-1-jianyong.wu@arm.com> References: <20201111062211.33144-1-jianyong.wu@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201111_012341_862578_478081B8 X-CRM114-Status: GOOD ( 10.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: justin.he@arm.com, kvm@vger.kernel.org, Steve.Capper@arm.com, jianyong.wu@arm.com, linux-kernel@vger.kernel.org, nd@arm.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Let userspace check if there is kvm ptp service in host. Before VMs migrate to another host, VMM may check if this cap is available to determine the next behavior. Signed-off-by: Jianyong Wu Suggested-by: Marc Zyngier --- arch/arm64/kvm/arm.c | 1 + include/uapi/linux/kvm.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 5750ec34960e..c05279de507d 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -182,6 +182,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_ARM_IRQ_LINE_LAYOUT_2: case KVM_CAP_ARM_NISV_TO_USER: case KVM_CAP_ARM_INJECT_EXT_DABT: + case KVM_CAP_PTP_KVM: r = 1; break; case KVM_CAP_ARM_SET_DEVICE_ADDR: diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index ca41220b40b8..797c40bbc31f 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1053,6 +1053,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_X86_USER_SPACE_MSR 188 #define KVM_CAP_X86_MSR_FILTER 189 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190 +#define KVM_CAP_PTP_KVM 191 #ifdef KVM_CAP_IRQ_ROUTING -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel