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KVM: arm/arm64: Move cntvoff to each timer context

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Make cntvoff per each timer context. This is helpful to abstract kvm
timer functions to work with timer context without considering timer
types (e.g. physical timer or virtual timer).

This also would pave the way for ever doing adjustments of the cntvoff
on a per-CPU basis if that should ever make sense.

Signed-off-by: Jintack Lim <jintack@cs.columbia.edu>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Jintack Lim
2017-02-03 10:20:00 -05:00
committed by Marc Zyngier
parent fbb4aeec5f
commit 90de943a43
6 changed files with 32 additions and 25 deletions
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3
virt/kvm/arm/hyp/timer-sr.c
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@@ -53,7 +53,6 @@ void __hyp_text __timer_save_state(struct kvm_vcpu *vcpu)
void __hyp_text __timer_restore_state(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = kern_hyp_va(vcpu->kvm);
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
struct arch_timer_context *vtimer = vcpu_vtimer(vcpu);
u64 val;
@@ -71,7 +70,7 @@ void __hyp_text __timer_restore_state(struct kvm_vcpu *vcpu)
}
if (timer->enabled) {
write_sysreg(kvm->arch.timer.cntvoff, cntvoff_el2);
write_sysreg(vtimer->cntvoff, cntvoff_el2);
write_sysreg_el0(vtimer->cnt_cval, cntv_cval);
isb();
write_sysreg_el0(vtimer->cnt_ctl, cntv_ctl);