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KVM: arm/arm64: Abstract virtual timer context into separate structure

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Abstract virtual timer context into a separate structure and change all
callers referring to timer registers, irq state and so on. No change in
functionality.

This is about to become very handy when adding the EL1 physical timer.

Signed-off-by: Jintack Lim <jintack@cs.columbia.edu>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Jintack Lim
2017-02-03 10:19:59 -05:00
committed by Marc Zyngier
parent 0bdbf3b071
commit fbb4aeec5f
3 changed files with 56 additions and 50 deletions
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27
include/kvm/arm_arch_timer.h
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@@ -28,15 +28,20 @@ struct arch_timer_kvm {
u64 cntvoff;
};
struct arch_timer_cpu {
struct arch_timer_context {
/* Registers: control register, timer value */
u32 cntv_ctl; /* Saved/restored */
u64 cntv_cval; /* Saved/restored */
u32 cnt_ctl;
u64 cnt_cval;
/*
* Anything that is not used directly from assembly code goes
* here.
*/
/* Timer IRQ */
struct kvm_irq_level irq;
/* Active IRQ state caching */
bool active_cleared_last;
};
struct arch_timer_cpu {
struct arch_timer_context vtimer;
/* Background timer used when the guest is not running */
struct hrtimer timer;
@@ -47,12 +52,6 @@ struct arch_timer_cpu {
/* Background timer active */
bool armed;
/* Timer IRQ */
struct kvm_irq_level irq;
/* Active IRQ state caching */
bool active_cleared_last;
/* Is the timer enabled */
bool enabled;
};
@@ -77,4 +76,6 @@ void kvm_timer_unschedule(struct kvm_vcpu *vcpu);
void kvm_timer_vcpu_put(struct kvm_vcpu *vcpu);
void kvm_timer_init_vhe(void);
#define vcpu_vtimer(v) (&(v)->arch.timer_cpu.vtimer)
#endif