Re: [RFC PATCH v2 2/3] KVM: arm64: Convert lazy FPSIMD context switch trap to C

2018-04-09 Thread Christoffer Dall
On Mon, Apr 09, 2018 at 11:00:40AM +0100, Marc Zyngier wrote: > On 09/04/18 10:44, Christoffer Dall wrote: > > On Fri, Apr 06, 2018 at 04:51:53PM +0100, Dave Martin wrote: > >> On Fri, Apr 06, 2018 at 04:25:57PM +0100, Marc Zyngier wrote: > >>> Hi Dave, > >>> > >>> On 06/04/18 16:01, Dave Martin wr

Re: [RFC PATCH v2 2/3] KVM: arm64: Convert lazy FPSIMD context switch trap to C

2018-04-09 Thread Marc Zyngier
On 09/04/18 10:44, Christoffer Dall wrote: > On Fri, Apr 06, 2018 at 04:51:53PM +0100, Dave Martin wrote: >> On Fri, Apr 06, 2018 at 04:25:57PM +0100, Marc Zyngier wrote: >>> Hi Dave, >>> >>> On 06/04/18 16:01, Dave Martin wrote: To make the lazy FPSIMD context switch trap code easier to hack

Re: [RFC PATCH v2 2/3] KVM: arm64: Convert lazy FPSIMD context switch trap to C

2018-04-09 Thread Christoffer Dall
On Fri, Apr 06, 2018 at 04:51:53PM +0100, Dave Martin wrote: > On Fri, Apr 06, 2018 at 04:25:57PM +0100, Marc Zyngier wrote: > > Hi Dave, > > > > On 06/04/18 16:01, Dave Martin wrote: > > > To make the lazy FPSIMD context switch trap code easier to hack on, > > > this patch converts it to C. > > >

Re: [RFC PATCH v2 2/3] KVM: arm64: Convert lazy FPSIMD context switch trap to C

2018-04-06 Thread Dave Martin
On Fri, Apr 06, 2018 at 04:25:57PM +0100, Marc Zyngier wrote: > Hi Dave, > > On 06/04/18 16:01, Dave Martin wrote: > > To make the lazy FPSIMD context switch trap code easier to hack on, > > this patch converts it to C. > > > > This is not amazingly efficient, but the trap should typically only >

Re: [RFC PATCH v2 2/3] KVM: arm64: Convert lazy FPSIMD context switch trap to C

2018-04-06 Thread Marc Zyngier
Hi Dave, On 06/04/18 16:01, Dave Martin wrote: > To make the lazy FPSIMD context switch trap code easier to hack on, > this patch converts it to C. > > This is not amazingly efficient, but the trap should typically only > be taken once per host context switch. > > Signed-off-by: Dave Martin >