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From: Pan Xinhui <xinhui@linux.vnet.ibm.com>
To: Boqun Feng <boqun.feng@gmail.com>,
	Pan Xinhui <xinhui.pan@linux.vnet.ibm.com>
Cc: 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,
	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, borntraeger@de.ibm.com,
	rkrcmar@redhat.com
Subject: Re: [PATCH v5 9/9] Documentation: virtual: kvm: Support vcpu preempted check
Date: Fri, 21 Oct 2016 09:42:22 +0800	[thread overview]
Message-ID: <26e3f487-10e5-3a45-0b8d-e4554d716ae8@linux.vnet.ibm.com> (raw)
In-Reply-To: <20161021012348.GC8429@tardis.cn.ibm.com>



在 2016/10/21 09:23, Boqun Feng 写道:
> On Thu, Oct 20, 2016 at 05:27:54PM -0400, Pan Xinhui wrote:
>> 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.
>   ^^^^^^^^^
> s/preempted/not preempted
>
yes. the less of *not* definitely sould be avoided..
> And better to fix other typos in the commit log ;-)
> Maybe you can try aspell? That works for me.
>
I will try it. :)

> Regards,
> Boqun
>
>>
>> Signed-off-by: Pan Xinhui <xinhui.pan@linux.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];
>>  	}
>>
>>  	whose data will be filled in by the hypervisor periodically. Only one
>> @@ -232,6 +233,11 @@ 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
>>

  reply	other threads:[~2016-10-21  1:42 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-20 21:27 [PATCH v5 0/9] implement vcpu preempted check Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 1/9] kernel/sched: introduce vcpu preempted check interface Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 2/9] locking/osq: Drop the overload of osq_lock() Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 3/9] kernel/locking: Drop the overload of {mutex, rwsem}_spin_on_owner Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 4/9] powerpc/spinlock: support vcpu preempted check Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 5/9] x86, paravirt: Add interface to support kvm/xen " Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 6/9] x86, kvm: support " Pan Xinhui
2016-10-24  8:08   ` xinhui
2016-10-20 21:27 ` [PATCH v5 7/9] x86, xen: " Pan Xinhui
2016-10-21  5:08   ` Juergen Gross
2016-10-20 21:27 ` [PATCH v5 8/9] s390/spinlock: Provide vcpu_is_preempted Pan Xinhui
2016-10-20 21:27 ` [PATCH v5 9/9] Documentation: virtual: kvm: Support vcpu preempted check Pan Xinhui
2016-10-21  1:23   ` Boqun Feng
2016-10-21  1:42     ` Pan Xinhui [this message]
2016-10-21 11:27   ` David Laight
2016-10-21 18:39     ` rkrcmar
2016-10-24  2:46       ` xinhui
2016-10-24 14:42       ` Paolo Bonzini
2016-10-24 15:05         ` rkrcmar
2016-10-24  2:44     ` xinhui
2016-10-24  8:12   ` xinhui
2016-10-21  5:40 ` [PATCH v5 0/9] implement " Peter Zijlstra

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