Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Marc Zyngier
On 05/02/18 10:50, Christoffer Dall wrote: > On Mon, Feb 05, 2018 at 10:42:44AM +, Marc Zyngier wrote: >> On 05/02/18 09:58, Andrew Jones wrote: >>> On Mon, Feb 05, 2018 at 09:24:33AM +, Marc Zyngier wrote: On 04/02/18 12:37, Christoffer Dall wrote: >> >> [...] >> > Given the

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Christoffer Dall
On Mon, Feb 05, 2018 at 10:42:44AM +, Marc Zyngier wrote: > On 05/02/18 09:58, Andrew Jones wrote: > > On Mon, Feb 05, 2018 at 09:24:33AM +, Marc Zyngier wrote: > >> On 04/02/18 12:37, Christoffer Dall wrote: > > [...] > > >>> Given the urgency of adding mitigation towards variant 2

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Marc Zyngier
On 05/02/18 09:58, Andrew Jones wrote: > On Mon, Feb 05, 2018 at 09:24:33AM +, Marc Zyngier wrote: >> On 04/02/18 12:37, Christoffer Dall wrote: [...] >>> Given the urgency of adding mitigation towards variant 2 which is the >>> driver for this work, I think we should drop the compat

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Andrew Jones
On Mon, Feb 05, 2018 at 09:24:33AM +, Marc Zyngier wrote: > On 04/02/18 12:37, Christoffer Dall wrote: > > On Sat, Feb 03, 2018 at 11:59:32AM +, Marc Zyngier wrote: > >> On Fri, 2 Feb 2018 21:17:06 +0100 > >> Andrew Jones wrote: > >> > >>> On Thu, Feb 01, 2018 at

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Andrew Jones
On Sun, Feb 04, 2018 at 01:37:01PM +0100, Christoffer Dall wrote: > On Sat, Feb 03, 2018 at 11:59:32AM +, Marc Zyngier wrote: > > On Fri, 2 Feb 2018 21:17:06 +0100 > > Andrew Jones wrote: > > > > > On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier wrote: > > > >

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Marc Zyngier
On 04/02/18 12:38, Christoffer Dall wrote: > Hi Marc, > > [ I know we're discussing the overall approach in parallel, but here are > some comments on the specifics of this patch, should it end up being > used in some capacity ] > > On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Andrew Jones
On Sat, Feb 03, 2018 at 11:59:32AM +, Marc Zyngier wrote: > On Fri, 2 Feb 2018 21:17:06 +0100 > Andrew Jones wrote: > > > On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier wrote: > > > Although we've implemented PSCI 1.0 and 1.1, nothing can select them > > > Since

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-05 Thread Marc Zyngier
On 04/02/18 12:37, Christoffer Dall wrote: > On Sat, Feb 03, 2018 at 11:59:32AM +, Marc Zyngier wrote: >> On Fri, 2 Feb 2018 21:17:06 +0100 >> Andrew Jones wrote: >> >>> On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier wrote: Although we've implemented PSCI 1.0

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-04 Thread Christoffer Dall
Hi Marc, [ I know we're discussing the overall approach in parallel, but here are some comments on the specifics of this patch, should it end up being used in some capacity ] On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier wrote: > Although we've implemented PSCI 1.0 and 1.1, nothing

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-04 Thread Christoffer Dall
On Sat, Feb 03, 2018 at 11:59:32AM +, Marc Zyngier wrote: > On Fri, 2 Feb 2018 21:17:06 +0100 > Andrew Jones wrote: > > > On Thu, Feb 01, 2018 at 11:46:47AM +, Marc Zyngier wrote: > > > Although we've implemented PSCI 1.0 and 1.1, nothing can select them > > > Since

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-03 Thread Marc Zyngier
On Fri, 2 Feb 2018 21:17:06 +0100 Andrew Jones wrote: > On Thu, Feb 01, 2018 at 11:46:47AM +, 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

Re: [PATCH v3 08/18] arm/arm64: KVM: Add PSCI version selection API

2018-02-02 Thread Andrew Jones
On Thu, Feb 01, 2018 at 11:46:47AM +, 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