From patchwork Mon Sep 24 13:30:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongjiu Geng X-Patchwork-Id: 10612479 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D8B04913 for ; Mon, 24 Sep 2018 13:32:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5FCC29F1F for ; Mon, 24 Sep 2018 13:32:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B8EA129F2A; Mon, 24 Sep 2018 13:32:10 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 536D629F1F for ; Mon, 24 Sep 2018 13:32:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=d/Xf0Da/DUEsgJP8eJJGEtPTPc0kOQR9n+J9PyGHe2U=; b=q3Xm+3wnHB8EjJ y9NWyU+elYQQiqxpL2DCWcYaMkmdvwa7T9i2VdCrEB9Rlsm39uc5Nuq7c2xIY7d4yFiaNfPKqVUE+ f86L4jIzJL+gSX56nI0SBoYN6setnIQpFa1oNt0ab2qNRXXifvbMB9poXg1LJYfR9QguV+ocXrjY3 dmla76OrB11UyXNaOe9EOTmKdHYxcaj5IFO6gSbm6OXU48a6ilJczqiRcMTg5JvCKXPD21qsATX4f k9Lev5ZA1uQoxk/js1ZxMU4iLqv8aEv+vBJCIJUwM/NpCTgyxtrw2dTZdBVdH6+JYCpDXFkfNOxvD qc2goxRJPjzCYwsD/LCA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1g4Qy7-0004Dg-3Z; Mon, 24 Sep 2018 13:32:07 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g4Qxj-0004BB-5j for linux-arm-kernel@lists.infradead.org; Mon, 24 Sep 2018 13:31:44 +0000 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id C4D1DB193C318; Mon, 24 Sep 2018 21:31:05 +0800 (CST) Received: from SHA150392835-N.china.huawei.com (10.45.48.175) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.399.0; Mon, 24 Sep 2018 21:30:57 +0800 From: Dongjiu Geng To: , , , , , , , , , , Subject: [PATCH 2/2] arm/arm64: KVM: share the check for vcpu events capability Date: Mon, 24 Sep 2018 21:30:00 +0800 Message-ID: <20180924133000.10244-3-gengdongjiu@huawei.com> X-Mailer: git-send-email 2.11.0.windows.1 In-Reply-To: <20180924133000.10244-1-gengdongjiu@huawei.com> References: <20180924133000.10244-1-gengdongjiu@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.45.48.175] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180924_063143_421996_909AE61D X-CRM114-Status: GOOD ( 10.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gengdongjiu@huawei.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The commit 539aee0edb9f ("KVM: arm64: Share the parts of get/set events useful to 32bit") shares the get/set events helper for arm64 and arm32, it is better also share the check for vcpu events capability. User space will check whether KVM supports vcpu events through KVM_CAP_VCPU_EVENTS IOCTL. Signed-off-by: Dongjiu Geng --- For the 32 bit guest migration, it needs to enable the vcpu events --- arch/arm64/kvm/reset.c | 1 - virt/kvm/arm/arm.c | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index fd37c53..e50245e 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -82,7 +82,6 @@ int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext) break; case KVM_CAP_SET_GUEST_DEBUG: case KVM_CAP_VCPU_ATTRIBUTES: - case KVM_CAP_VCPU_EVENTS: r = 1; break; default: diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index 40e79ea..64e5d97 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -212,6 +212,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_READONLY_MEM: case KVM_CAP_MP_STATE: case KVM_CAP_IMMEDIATE_EXIT: + case KVM_CAP_VCPU_EVENTS: r = 1; break; case KVM_CAP_ARM_SET_DEVICE_ADDR: