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Date: Mon, 24 Oct 2016 10:46:54 +0800 From: xinhui <xinhui.pan@...ux.vnet.ibm.com> To: "rkrcmar@...hat.com" <rkrcmar@...hat.com>, David Laight <David.Laight@...LAB.COM> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>, "virtualization@...ts.linux-foundation.org" <virtualization@...ts.linux-foundation.org>, "linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>, "xen-devel-request@...ts.xenproject.org" <xen-devel-request@...ts.xenproject.org>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "kernellwp@...il.com" <kernellwp@...il.com>, "jgross@...e.com" <jgross@...e.com>, "peterz@...radead.org" <peterz@...radead.org>, "will.deacon@....com" <will.deacon@....com>, "borntraeger@...ibm.com" <borntraeger@...ibm.com>, "mingo@...hat.com" <mingo@...hat.com>, "paulus@...ba.org" <paulus@...ba.org>, "pbonzini@...hat.com" <pbonzini@...hat.com>, "paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>, "boqun.feng@...il.com" <boqun.feng@...il.com> Subject: Re: [PATCH v5 9/9] Documentation: virtual: kvm: Support vcpu preempted check On 2016年10月22日 02:39, rkrcmar@...hat.com wrote: > 2016-10-21 11:27+0000, David Laight: >> From: Pan Xinhui >>> Sent: 20 October 2016 22:28 >>> 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 >>> preempted. Other values means the vcpu has been preempted. >>> >>> Signed-off-by: Pan Xinhui <xinhui.pan@...ux.vnet.ibm.com> >>> --- >>> Documentation/virtual/kvm/msr.txt | 8 +++++++- >>> 1 file changed, 7 insertions(+), 1 deletion(-) >>> >>> diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt >>> index 2a71c8f..3376f13 100644 >>> --- a/Documentation/virtual/kvm/msr.txt >>> +++ b/Documentation/virtual/kvm/msr.txt >>> @@ -208,7 +208,8 @@ MSR_KVM_STEAL_TIME: 0x4b564d03 >>> __u64 steal; >>> __u32 version; >>> __u32 flags; >>> - __u32 pad[12]; >>> + __u8 preempted; >>> + __u32 pad[11]; >>> } >> >> I think I'd be explicit about the 3 pad bytes you've left. > > Seconded. > > With that change are all KVM bits > like below? __u8 preempted; __u8 kvm_pad[3]; > Acked-by: Radim Krčmář <rkrcmar@...hat.com> > thanks!
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