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Diffstat (limited to 'arch/arm64/kvm/arch_timer.c')
-rw-r--r--arch/arm64/kvm/arch_timer.c105
1 files changed, 14 insertions, 91 deletions
diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c
index dbd74e4885e2..3f675875abea 100644
--- a/arch/arm64/kvm/arch_timer.c
+++ b/arch/arm64/kvm/arch_timer.c
@@ -66,7 +66,7 @@ static int nr_timers(struct kvm_vcpu *vcpu)
u32 timer_get_ctl(struct arch_timer_context *ctxt)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctxt);
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
@@ -85,7 +85,7 @@ u32 timer_get_ctl(struct arch_timer_context *ctxt)
u64 timer_get_cval(struct arch_timer_context *ctxt)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctxt);
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
@@ -104,7 +104,7 @@ u64 timer_get_cval(struct arch_timer_context *ctxt)
static void timer_set_ctl(struct arch_timer_context *ctxt, u32 ctl)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctxt);
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
@@ -126,7 +126,7 @@ static void timer_set_ctl(struct arch_timer_context *ctxt, u32 ctl)
static void timer_set_cval(struct arch_timer_context *ctxt, u64 cval)
{
- struct kvm_vcpu *vcpu = ctxt->vcpu;
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctxt);
switch(arch_timer_ctx_index(ctxt)) {
case TIMER_VTIMER:
@@ -146,16 +146,6 @@ static void timer_set_cval(struct arch_timer_context *ctxt, u64 cval)
}
}
-static void timer_set_offset(struct arch_timer_context *ctxt, u64 offset)
-{
- if (!ctxt->offset.vm_offset) {
- WARN(offset, "timer %ld\n", arch_timer_ctx_index(ctxt));
- return;
- }
-
- WRITE_ONCE(*ctxt->offset.vm_offset, offset);
-}
-
u64 kvm_phys_timer_read(void)
{
return timecounter->cc->read(timecounter->cc);
@@ -343,7 +333,7 @@ static enum hrtimer_restart kvm_hrtimer_expire(struct hrtimer *hrt)
u64 ns;
ctx = container_of(hrt, struct arch_timer_context, hrtimer);
- vcpu = ctx->vcpu;
+ vcpu = timer_context_to_vcpu(ctx);
trace_kvm_timer_hrtimer_expire(ctx);
@@ -436,8 +426,9 @@ static void kvm_timer_update_status(struct arch_timer_context *ctx, bool level)
*
* But hey, it's fast, right?
*/
- if (is_hyp_ctxt(ctx->vcpu) &&
- (ctx == vcpu_vtimer(ctx->vcpu) || ctx == vcpu_ptimer(ctx->vcpu))) {
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctx);
+ if (is_hyp_ctxt(vcpu) &&
+ (ctx == vcpu_vtimer(vcpu) || ctx == vcpu_ptimer(vcpu))) {
unsigned long val = timer_get_ctl(ctx);
__assign_bit(__ffs(ARCH_TIMER_CTRL_IT_STAT), &val, level);
timer_set_ctl(ctx, val);
@@ -470,7 +461,7 @@ static void timer_emulate(struct arch_timer_context *ctx)
trace_kvm_timer_emulate(ctx, should_fire);
if (should_fire != ctx->irq.level)
- kvm_timer_update_irq(ctx->vcpu, should_fire, ctx);
+ kvm_timer_update_irq(timer_context_to_vcpu(ctx), should_fire, ctx);
kvm_timer_update_status(ctx, should_fire);
@@ -498,7 +489,7 @@ static void set_cntpoff(u64 cntpoff)
static void timer_save_state(struct arch_timer_context *ctx)
{
- struct arch_timer_cpu *timer = vcpu_timer(ctx->vcpu);
+ struct arch_timer_cpu *timer = vcpu_timer(timer_context_to_vcpu(ctx));
enum kvm_arch_timers index = arch_timer_ctx_index(ctx);
unsigned long flags;
@@ -609,7 +600,7 @@ static void kvm_timer_unblocking(struct kvm_vcpu *vcpu)
static void timer_restore_state(struct arch_timer_context *ctx)
{
- struct arch_timer_cpu *timer = vcpu_timer(ctx->vcpu);
+ struct arch_timer_cpu *timer = vcpu_timer(timer_context_to_vcpu(ctx));
enum kvm_arch_timers index = arch_timer_ctx_index(ctx);
unsigned long flags;
@@ -668,7 +659,7 @@ static inline void set_timer_irq_phys_active(struct arch_timer_context *ctx, boo
static void kvm_timer_vcpu_load_gic(struct arch_timer_context *ctx)
{
- struct kvm_vcpu *vcpu = ctx->vcpu;
+ struct kvm_vcpu *vcpu = timer_context_to_vcpu(ctx);
bool phys_active = false;
/*
@@ -677,7 +668,7 @@ static void kvm_timer_vcpu_load_gic(struct arch_timer_context *ctx)
* this point and the register restoration, we'll take the
* interrupt anyway.
*/
- kvm_timer_update_irq(ctx->vcpu, kvm_timer_should_fire(ctx), ctx);
+ kvm_timer_update_irq(vcpu, kvm_timer_should_fire(ctx), ctx);
if (irqchip_in_kernel(vcpu->kvm))
phys_active = kvm_vgic_map_is_active(vcpu, timer_irq(ctx));
@@ -1063,7 +1054,7 @@ static void timer_context_init(struct kvm_vcpu *vcpu, int timerid)
struct arch_timer_context *ctxt = vcpu_get_timer(vcpu, timerid);
struct kvm *kvm = vcpu->kvm;
- ctxt->vcpu = vcpu;
+ ctxt->timer_id = timerid;
if (timerid == TIMER_VTIMER)
ctxt->offset.vm_offset = &kvm->arch.timer_data.voffset;
@@ -1121,49 +1112,6 @@ void kvm_timer_cpu_down(void)
disable_percpu_irq(host_ptimer_irq);
}
-int kvm_arm_timer_set_reg(struct kvm_vcpu *vcpu, u64 regid, u64 value)
-{
- struct arch_timer_context *timer;
-
- switch (regid) {
- case KVM_REG_ARM_TIMER_CTL:
- timer = vcpu_vtimer(vcpu);
- kvm_arm_timer_write(vcpu, timer, TIMER_REG_CTL, value);
- break;
- case KVM_REG_ARM_TIMER_CNT:
- if (!test_bit(KVM_ARCH_FLAG_VM_COUNTER_OFFSET,
- &vcpu->kvm->arch.flags)) {
- timer = vcpu_vtimer(vcpu);
- timer_set_offset(timer, kvm_phys_timer_read() - value);
- }
- break;
- case KVM_REG_ARM_TIMER_CVAL:
- timer = vcpu_vtimer(vcpu);
- kvm_arm_timer_write(vcpu, timer, TIMER_REG_CVAL, value);
- break;
- case KVM_REG_ARM_PTIMER_CTL:
- timer = vcpu_ptimer(vcpu);
- kvm_arm_timer_write(vcpu, timer, TIMER_REG_CTL, value);
- break;
- case KVM_REG_ARM_PTIMER_CNT:
- if (!test_bit(KVM_ARCH_FLAG_VM_COUNTER_OFFSET,
- &vcpu->kvm->arch.flags)) {
- timer = vcpu_ptimer(vcpu);
- timer_set_offset(timer, kvm_phys_timer_read() - value);
- }
- break;
- case KVM_REG_ARM_PTIMER_CVAL:
- timer = vcpu_ptimer(vcpu);
- kvm_arm_timer_write(vcpu, timer, TIMER_REG_CVAL, value);
- break;
-
- default:
- return -1;
- }
-
- return 0;
-}
-
static u64 read_timer_ctl(struct arch_timer_context *timer)
{
/*
@@ -1180,31 +1128,6 @@ static u64 read_timer_ctl(struct arch_timer_context *timer)
return ctl;
}
-u64 kvm_arm_timer_get_reg(struct kvm_vcpu *vcpu, u64 regid)
-{
- switch (regid) {
- case KVM_REG_ARM_TIMER_CTL:
- return kvm_arm_timer_read(vcpu,
- vcpu_vtimer(vcpu), TIMER_REG_CTL);
- case KVM_REG_ARM_TIMER_CNT:
- return kvm_arm_timer_read(vcpu,
- vcpu_vtimer(vcpu), TIMER_REG_CNT);
- case KVM_REG_ARM_TIMER_CVAL:
- return kvm_arm_timer_read(vcpu,
- vcpu_vtimer(vcpu), TIMER_REG_CVAL);
- case KVM_REG_ARM_PTIMER_CTL:
- return kvm_arm_timer_read(vcpu,
- vcpu_ptimer(vcpu), TIMER_REG_CTL);
- case KVM_REG_ARM_PTIMER_CNT:
- return kvm_arm_timer_read(vcpu,
- vcpu_ptimer(vcpu), TIMER_REG_CNT);
- case KVM_REG_ARM_PTIMER_CVAL:
- return kvm_arm_timer_read(vcpu,
- vcpu_ptimer(vcpu), TIMER_REG_CVAL);
- }
- return (u64)-1;
-}
-
static u64 kvm_arm_timer_read(struct kvm_vcpu *vcpu,
struct arch_timer_context *timer,
enum kvm_arch_timer_regs treg)
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-19 05:17:32 +0000