[PATCH v5 9/9] Documentation: virtual: kvm: Support vcpu preempted check
Pan Xinhui
xinhui at linux.vnet.ibm.com
Fri Oct 21 12:42:22 AEDT 2016
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 at 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
>>
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