Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935196AbcJXIM6 (ORCPT ); Mon, 24 Oct 2016 04:12:58 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:36797 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934130AbcJXIMz (ORCPT ); Mon, 24 Oct 2016 04:12:55 -0400 Date: Mon, 24 Oct 2016 16:12:29 +0800 From: xinhui User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux-foundation.org, linux-s390@vger.kernel.org, xen-devel-request@lists.xenproject.org, kvm@vger.kernel.org CC: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, mingo@redhat.com, peterz@infradead.org, paulmck@linux.vnet.ibm.com, will.deacon@arm.com, kernellwp@gmail.com, jgross@suse.com, pbonzini@redhat.com, bsingharora@gmail.com, boqun.feng@gmail.com, borntraeger@de.ibm.com, rkrcmar@redhat.com Subject: Re: [PATCH v5 9/9] Documentation: virtual: kvm: Support vcpu preempted check References: <1476998874-2089-1-git-send-email-xinhui.pan@linux.vnet.ibm.com> <1476998874-2089-10-git-send-email-xinhui.pan@linux.vnet.ibm.com> In-Reply-To: <1476998874-2089-10-git-send-email-xinhui.pan@linux.vnet.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16102408-0052-0000-0000-000001DE5BF8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16102408-0053-0000-0000-0000070D70B4 Message-Id: <580DC26D.4040908@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-10-23_18:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1610240147 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1955 Lines: 52 This is new version for [PATCH v6 9/9] Documentation: virtual: kvm: Support vcpu preempted check change: an explicit pad[3] after __u8 preempted. a typo fix in the commit log. From defac64d7c6a50d5f18ef64a7c776af3e21e8b68 Mon Sep 17 00:00:00 2001 From: Pan Xinhui Date: Thu, 20 Oct 2016 09:33:36 -0400 Subject: [PATCH v6 9/9] Documentation: virtual: kvm: Support vcpu preempted check Commit ("x86, kvm: support vcpu preempted check") add one field "__u8 preempted" into struct kvm_steal_time. This field tells if one vcpu is running or not. It is zero if 1) some old KVM deos not support this filed. 2) the vcpu is not preempted. Other values mean the vcpu has been preempted. Signed-off-by: Pan Xinhui Acked-by: Radim Krčmář --- Documentation/virtual/kvm/msr.txt | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt index 2a71c8f..ab2ab76 100644 --- a/Documentation/virtual/kvm/msr.txt +++ b/Documentation/virtual/kvm/msr.txt @@ -208,7 +208,9 @@ MSR_KVM_STEAL_TIME: 0x4b564d03 __u64 steal; __u32 version; __u32 flags; - __u32 pad[12]; + __u8 preempted; + __u8 u8_pad[3]; + __u32 pad[11]; } whose data will be filled in by the hypervisor periodically. Only one @@ -232,6 +234,11 @@ MSR_KVM_STEAL_TIME: 0x4b564d03 nanoseconds. Time during which the vcpu is idle, will not be reported as steal time. + preempted: indicate the VCPU who owns this struct is running or + not. Non-zero values mean the VCPU has been preempted. Zero + means the VCPU is not preempted. NOTE, it is always zero if the + the hypervisor doesn't support this field. + MSR_KVM_EOI_EN: 0x4b564d04 data: Bit 0 is 1 when PV end of interrupt is enabled on the vcpu; 0 when disabled. Bit 1 is reserved and must be zero. When PV end of -- 2.4.11