Re: [PATCH v3 03/41] KVM: arm64: Avoid storing the vcpu pointer on the stack

Hi Christoffer, On 12/01/18 12:07, Christoffer Dall wrote: diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 048f5db120f3..6ce0b428a4db 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -350,10 +350,15 @@ int

[PATCH v3 03/41] KVM: arm64: Avoid storing the vcpu pointer on the stack

We already have the percpu area for the host cpu state, which points to the VCPU, so there's no need to store the VCPU pointer on the stack on every context switch. We can be a little more clever and just use tpidr_el2 for the percpu offset and load the VCPU pointer from the host context. This