Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread Andrew Jones
On Wed, Jan 31, 2018 at 06:36:38PM +, Marc Zyngier wrote: > On 31/01/18 18:03, Andrew Jones wrote: > > On Wed, Jan 31, 2018 at 05:45:56PM +, Marc Zyngier wrote: > >> On 31/01/18 17:38, Andrew Jones wrote: > >>> On Mon, Jan 29, 2018 at 05:45:50PM +, Marc Zyngier wrote: > Although we

Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread Marc Zyngier
On 31/01/18 18:03, Andrew Jones wrote: > On Wed, Jan 31, 2018 at 05:45:56PM +, Marc Zyngier wrote: >> On 31/01/18 17:38, Andrew Jones wrote: >>> On Mon, Jan 29, 2018 at 05:45:50PM +, Marc Zyngier wrote: Although we've implemented PSCI 1.0 and 1.1, nothing can select them Since all

Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread kbuild test robot
Hi Marc, I love your patch! Yet something to improve: [auto build test ERROR on arm64/for-next/core] [cannot apply to kvmarm/next linus/master v4.15 next-20180126] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day

Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread Andrew Jones
On Wed, Jan 31, 2018 at 05:45:56PM +, Marc Zyngier wrote: > On 31/01/18 17:38, Andrew Jones wrote: > > On Mon, Jan 29, 2018 at 05:45:50PM +, Marc Zyngier wrote: > >> Although we've implemented PSCI 1.0 and 1.1, nothing can select them > >> Since all the new PSCI versions are backward compat

Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread Marc Zyngier
On 31/01/18 17:38, Andrew Jones wrote: > On Mon, Jan 29, 2018 at 05:45:50PM +, Marc Zyngier wrote: >> Although we've implemented PSCI 1.0 and 1.1, nothing can select them >> Since all the new PSCI versions are backward compatible, we decide to >> default to the latest version of the PSCI implem

Re: [PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-31 Thread Andrew Jones
On Mon, Jan 29, 2018 at 05:45:50PM +, Marc Zyngier wrote: > Although we've implemented PSCI 1.0 and 1.1, nothing can select them > Since all the new PSCI versions are backward compatible, we decide to > default to the latest version of the PSCI implementation. This is no > different from doing

[PATCH v2 07/16] arm/arm64: KVM: Add PSCI version selection API

2018-01-29 Thread Marc Zyngier
Although we've implemented PSCI 1.0 and 1.1, nothing can select them Since all the new PSCI versions are backward compatible, we decide to default to the latest version of the PSCI implementation. This is no different from doing a firmware upgrade on KVM. But in order to give a chance to hypotheti