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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7D73CD8C8B for ; Tue, 10 Oct 2023 14:26:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233088AbjJJO0B (ORCPT ); Tue, 10 Oct 2023 10:26:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233080AbjJJOZ5 (ORCPT ); Tue, 10 Oct 2023 10:25:57 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 724B5A9 for ; Tue, 10 Oct 2023 07:25:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1696947911; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TApefxjm2WEaxEHFO8rc1HF2nVhBHdzR5dt4+KLCQJ0=; b=N4sccOY9txyP4BwSWUyFvepDbmkEI1otVnzfIKLJQUJa/vUdzwgc1yDOqA3zKC+Bgaopx8 IY1ulwBPw9gSmk0FBhsuFfbg2ELqySo5pMMc+Gpl8K5gXbk2JjD1EoKc2pf7+QZwWCNTJf Ysc71pJ+77LPJRjM7KVryH1VkDg6884= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-622-tPeLB-doNmavXo4SrMnqTw-1; Tue, 10 Oct 2023 10:25:02 -0400 X-MC-Unique: tPeLB-doNmavXo4SrMnqTw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BB18581DA0F; Tue, 10 Oct 2023 14:25:00 +0000 (UTC) Received: from gondolin.str.redhat.com (dhcp-192-239.str.redhat.com [10.33.192.239]) by smtp.corp.redhat.com (Postfix) with ESMTP id D0DDF21CAC76; Tue, 10 Oct 2023 14:24:59 +0000 (UTC) From: Cornelia Huck To: Peter Maydell , Paolo Bonzini Cc: Gavin Shan , qemu-arm@nongnu.org, qemu-devel@nongnu.org, kvm@vger.kernel.org, Cornelia Huck Subject: [PATCH v2 3/3] arm/kvm: convert to read_sys_reg64 Date: Tue, 10 Oct 2023 16:24:53 +0200 Message-ID: <20231010142453.224369-4-cohuck@redhat.com> In-Reply-To: <20231010142453.224369-1-cohuck@redhat.com> References: <20231010142453.224369-1-cohuck@redhat.com> MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org We can use read_sys_reg64 to get the SVE_VLS register instead of calling GET_ONE_REG directly. Suggested-by: Gavin Shan Signed-off-by: Cornelia Huck --- target/arm/kvm64.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index 558c0b88dd69..d40c89a84752 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -500,10 +500,6 @@ uint32_t kvm_arm_sve_get_vls(CPUState *cs) .target = -1, .features[0] = (1 << KVM_ARM_VCPU_SVE), }; - struct kvm_one_reg reg = { - .id = KVM_REG_ARM64_SVE_VLS, - .addr = (uint64_t)&vls[0], - }; int fdarray[3], ret; probed = true; @@ -512,7 +508,7 @@ uint32_t kvm_arm_sve_get_vls(CPUState *cs) error_report("failed to create scratch VCPU with SVE enabled"); abort(); } - ret = ioctl(fdarray[2], KVM_GET_ONE_REG, ®); + ret = read_sys_reg64(fdarray[2], &vls[0], KVM_REG_ARM64_SVE_VLS); kvm_arm_destroy_scratch_host_vcpu(fdarray); if (ret) { error_report("failed to get KVM_REG_ARM64_SVE_VLS: %s", -- 2.41.0