Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, Lu At 07/13/2017 11:00 AM, Lu Baolu wrote: Hi, On 07/13/2017 09:39 AM, Dou Liyang wrote: Hi, Lu At 07/13/2017 09:17 AM, Lu Baolu wrote: Hi, On 07/12/2017 04:02 PM, Dou Liyang wrote: Hi, Lu At 05/05/2017 08:50 PM, Boris Ostrovsky wrote: On 05/05/2017 01:41 AM, Lu Baolu wrote: Hi, On

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, On 07/13/2017 09:39 AM, Dou Liyang wrote: > Hi, Lu > > At 07/13/2017 09:17 AM, Lu Baolu wrote: >> Hi, >> >> On 07/12/2017 04:02 PM, Dou Liyang wrote: >>> Hi, Lu >>> >>> At 05/05/2017 08:50 PM, Boris Ostrovsky wrote: On 05/05/2017 01:41 AM, Lu Baolu wrote: > Hi, > > On 05/03/20

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, Lu At 07/13/2017 09:17 AM, Lu Baolu wrote: Hi, On 07/12/2017 04:02 PM, Dou Liyang wrote: Hi, Lu At 05/05/2017 08:50 PM, Boris Ostrovsky wrote: On 05/05/2017 01:41 AM, Lu Baolu wrote: Hi, On 05/03/2017 06:38 AM, Boris Ostrovsky wrote: On 03/21/2017 04:01 AM, Lu Baolu wrote: Add a simp

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, On 07/12/2017 04:02 PM, Dou Liyang wrote: > Hi, Lu > > At 05/05/2017 08:50 PM, Boris Ostrovsky wrote: >> On 05/05/2017 01:41 AM, Lu Baolu wrote: >>> Hi, >>> >>> On 05/03/2017 06:38 AM, Boris Ostrovsky wrote: On 03/21/2017 04:01 AM, Lu Baolu wrote: > Add a simple udelay calibration in

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, Lu At 05/05/2017 08:50 PM, Boris Ostrovsky wrote: On 05/05/2017 01:41 AM, Lu Baolu wrote: Hi, On 05/03/2017 06:38 AM, Boris Ostrovsky wrote: On 03/21/2017 04:01 AM, Lu Baolu wrote: Add a simple udelay calibration in x86 architecture-specific boot-time initializations. This will get a wor

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

On 05/05/2017 01:41 AM, Lu Baolu wrote: > Hi, > > On 05/03/2017 06:38 AM, Boris Ostrovsky wrote: >> On 03/21/2017 04:01 AM, Lu Baolu wrote: >>> Add a simple udelay calibration in x86 architecture-specific >>> boot-time initializations. This will get a workable estimate >>> for loops_per_jiffy. Henc

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

Hi, On 05/03/2017 06:38 AM, Boris Ostrovsky wrote: > On 03/21/2017 04:01 AM, Lu Baolu wrote: >> Add a simple udelay calibration in x86 architecture-specific >> boot-time initializations. This will get a workable estimate >> for loops_per_jiffy. Hence, udelay() could be used after this >> initializ

Re: [Xen-devel] [PATCH v8 1/5] x86: add simple udelay calibration

On 03/21/2017 04:01 AM, Lu Baolu wrote: > Add a simple udelay calibration in x86 architecture-specific > boot-time initializations. This will get a workable estimate > for loops_per_jiffy. Hence, udelay() could be used after this > initialization. This breaks Xen PV guests since at this point, and