Re: [PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU

2018-01-30 Thread Suzuki K Poulose
On 30/01/18 14:56, Dave Martin wrote: On Tue, Jan 30, 2018 at 11:17:38AM +, Suzuki K Poulose wrote: On 26/01/18 10:10, Dave Martin wrote: On Tue, Jan 23, 2018 at 12:27:58PM +, Suzuki K Poulose wrote: Add two different flags to indicate if the conflict of a capability on a late CPU with

Re: [PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU

2018-01-30 Thread Dave Martin
On Tue, Jan 30, 2018 at 11:17:38AM +, Suzuki K Poulose wrote: > On 26/01/18 10:10, Dave Martin wrote: > >On Tue, Jan 23, 2018 at 12:27:58PM +, Suzuki K Poulose wrote: > >>Add two different flags to indicate if the conflict of a capability > >>on a late CPU with the current system state > >>

Re: [PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU

2018-01-30 Thread Suzuki K Poulose
On 26/01/18 10:10, Dave Martin wrote: On Tue, Jan 23, 2018 at 12:27:58PM +, Suzuki K Poulose wrote: Add two different flags to indicate if the conflict of a capability on a late CPU with the current system state 1) Can a CPU have a capability when the system doesn't have it ? Most a

Re: [PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU

2018-01-26 Thread Dave Martin
On Tue, Jan 23, 2018 at 12:27:58PM +, Suzuki K Poulose wrote: > Add two different flags to indicate if the conflict of a capability > on a late CPU with the current system state > > 1) Can a CPU have a capability when the system doesn't have it ? > > Most arm64 features could have this s

[PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU

2018-01-23 Thread Suzuki K Poulose
Add two different flags to indicate if the conflict of a capability on a late CPU with the current system state 1) Can a CPU have a capability when the system doesn't have it ? Most arm64 features could have this set. While erratum work arounds cannot have this, as we may miss work aroun