From patchwork Wed Jan 13 13:59:57 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gleb Natapov X-Patchwork-Id: 72629 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.2) with ESMTP id o0DE0E0n016826 for ; Wed, 13 Jan 2010 14:00:14 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755357Ab0AMOAH (ORCPT ); Wed, 13 Jan 2010 09:00:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754072Ab0AMOAG (ORCPT ); Wed, 13 Jan 2010 09:00:06 -0500 Received: from mx1.redhat.com ([209.132.183.28]:2784 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755344Ab0AMN77 (ORCPT ); Wed, 13 Jan 2010 08:59:59 -0500 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o0DDxxNl018931 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 13 Jan 2010 08:59:59 -0500 Received: from dhcp-1-237.tlv.redhat.com (dhcp-1-237.tlv.redhat.com [10.35.1.237]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o0DDxwLk011694; Wed, 13 Jan 2010 08:59:58 -0500 Received: by dhcp-1-237.tlv.redhat.com (Postfix, from userid 13519) id E490E1336D0; Wed, 13 Jan 2010 15:59:57 +0200 (IST) From: Gleb Natapov To: avi@redhat.com Cc: kvm@vger.kernel.org Subject: [PATCH 3/3] Implement NotifyLongSpinWait HYPER-V hypercall. Date: Wed, 13 Jan 2010 15:59:57 +0200 Message-Id: <1263391197-9883-4-git-send-email-gleb@redhat.com> In-Reply-To: <1263391197-9883-1-git-send-email-gleb@redhat.com> References: <1263391197-9883-1-git-send-email-gleb@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e058898..b7d2eec 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1550,6 +1550,7 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_VCPU_EVENTS: case KVM_CAP_HYPERV: case KVM_CAP_HYPERV_VAPIC: + case KVM_CAP_HYPERV_SPIN: r = 1; break; case KVM_CAP_COALESCED_MMIO: @@ -3809,7 +3810,14 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) trace_kvm_hv_hypercall(code, fast, rep_cnt, rep_idx, ingpa, outgpa); - res = HV_STATUS_INVALID_HYPERCALL_CODE; + switch(code) { + case HV_X64_HV_NOTIFY_LONG_SPIN_WAIT: + kvm_vcpu_on_spin(vcpu); + break; + default: + res = HV_STATUS_INVALID_HYPERCALL_CODE; + break; + } ret = res | (((u64)rep_done & 0xfff) << 32); if (longmode) { diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 5ce6173..4c4937e 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -499,6 +499,7 @@ struct kvm_ioeventfd { #define KVM_CAP_PPC_SEGSTATE 43 #define KVM_CAP_HYPERV 44 #define KVM_CAP_HYPERV_VAPIC 45 +#define KVM_CAP_HYPERV_SPIN 46 #ifdef KVM_CAP_IRQ_ROUTING