Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi, On 30/05/2022 10:09, Bertrand Marquis wrote: On 23 May 2022, at 10:13, Michal Orzel wrote: Introduce a command line parameter "maxcpus" on Arm to allow adjusting the number of CPUs to activate. Currently the limit is defined by the config option CONFIG_NR_CPUS. Such parameter already exist

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi Michal, > On 23 May 2022, at 10:13, Michal Orzel wrote: > > Introduce a command line parameter "maxcpus" on Arm to allow adjusting > the number of CPUs to activate. Currently the limit is defined by the > config option CONFIG_NR_CPUS. Such parameter already exists on x86. > > Define a parame

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

On 24/05/2022 07:34, Michal Orzel wrote: Hi Julien, Hi Michal, On 23.05.2022 22:00, Julien Grall wrote: On 23/05/2022 11:21, Michal Orzel wrote: Hi Julien, Hi Michal, On 23.05.2022 12:05, Julien Grall wrote: Hi, On 23/05/2022 10:13, Michal Orzel wrote: Introduce a command line

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi Julien, Gentle ping asking to reply to my previous mail. On 24.05.2022 08:34, Michal Orzel wrote: > Hi Julien, > > On 23.05.2022 22:00, Julien Grall wrote: >> >> >> On 23/05/2022 11:21, Michal Orzel wrote: >>> Hi Julien, >> >> Hi Michal, >> >>> >>> On 23.05.2022 12:05, Julien Grall wrote: >>>

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi Julien, On 23.05.2022 22:00, Julien Grall wrote: > > > On 23/05/2022 11:21, Michal Orzel wrote: >> Hi Julien, > > Hi Michal, > >> >> On 23.05.2022 12:05, Julien Grall wrote: >>> Hi, >>> >>> On 23/05/2022 10:13, Michal Orzel wrote: Introduce a command line parameter "maxcpus" on Arm to

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

On 23/05/2022 11:21, Michal Orzel wrote: Hi Julien, Hi Michal, On 23.05.2022 12:05, Julien Grall wrote: Hi, On 23/05/2022 10:13, Michal Orzel wrote: Introduce a command line parameter "maxcpus" on Arm to allow adjusting the number of CPUs to activate. The current definition "maxcpus"

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi Julien, On 23.05.2022 12:05, Julien Grall wrote: > Hi, > > On 23/05/2022 10:13, Michal Orzel wrote: >> Introduce a command line parameter "maxcpus" on Arm to allow adjusting >> the number of CPUs to activate. > > The current definition "maxcpus" is not really suitable for big.LITTLE > system

Re: [PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Hi, On 23/05/2022 10:13, Michal Orzel wrote: Introduce a command line parameter "maxcpus" on Arm to allow adjusting the number of CPUs to activate. The current definition "maxcpus" is not really suitable for big.LITTLE systems as you have no flexibility to say how many types of each cores yo

[PATCH] xen/arm: Allow setting the number of CPUs to activate at runtime

Introduce a command line parameter "maxcpus" on Arm to allow adjusting the number of CPUs to activate. Currently the limit is defined by the config option CONFIG_NR_CPUS. Such parameter already exists on x86. Define a parameter "maxcpus" and a corresponding static variable max_cpus in Arm smpboot.