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KVM: Drop kvm_arch_vcpu_init() and kvm_arch_vcpu_uninit()

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Remove kvm_arch_vcpu_init() and kvm_arch_vcpu_uninit() now that all
arch specific implementations are nops.

Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2019-12-18 13:55:28 -08:00 committed by Paolo Bonzini
parent 19bcc89eb8
commit ddd259c9aa
11 changed files with 2 additions and 65 deletions
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1
arch/arm/include/asm/kvm_host.h
View File

@ -363,7 +363,6 @@ struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr);
static inline bool kvm_arch_requires_vhe(void) { return false; }
static inline void kvm_arch_hardware_unsetup(void) {}
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
static inline void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu) {}

1
arch/arm64/include/asm/kvm_host.h
View File

@ -54,7 +54,6 @@ int kvm_arm_init_sve(void);
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext);
void __extended_idmap_trampoline(phys_addr_t boot_pgd, phys_addr_t idmap_start);

5
arch/arm64/kvm/reset.c
View File

@ -204,11 +204,6 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu)
return true;
}
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
}
void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu)
{
kfree(vcpu->arch.sve_state);

10
arch/mips/kvm/mips.c
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@ -1230,16 +1230,6 @@ static enum hrtimer_restart kvm_mips_comparecount_wakeup(struct hrtimer *timer)
return kvm_mips_count_timeout(vcpu);
}
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
}
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
}
int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{

10
arch/powerpc/kvm/powerpc.c
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@ -801,16 +801,6 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
return kvmppc_core_pending_dec(vcpu);
}
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
}
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
}
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
#ifdef CONFIG_BOOKE

1
arch/s390/include/asm/kvm_host.h
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@ -914,7 +914,6 @@ extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);
static inline void kvm_arch_hardware_disable(void) {}
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_free_memslot(struct kvm *kvm,
struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}

5
arch/s390/kvm/kvm-s390.c
View File

@ -2700,11 +2700,6 @@ static int sca_can_add_vcpu(struct kvm *kvm, unsigned int id)
return rc == 0 && id < KVM_S390_ESCA_CPU_SLOTS;
}
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
}
/* needs disabled preemption to protect from TOD sync and vcpu_load/put */
static void __start_cpu_timer_accounting(struct kvm_vcpu *vcpu)
{

10
arch/x86/kvm/x86.c
View File

@ -9575,16 +9575,6 @@ bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
struct static_key kvm_no_apic_vcpu __read_mostly;
EXPORT_SYMBOL_GPL(kvm_no_apic_vcpu);
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
}
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
}
void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu)
{
struct kvm_pmu *pmu = vcpu_to_pmu(vcpu);

3
include/linux/kvm_host.h
View File

@ -864,9 +864,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
int kvm_arch_init(void *opaque);
void kvm_arch_exit(void);
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);

5
virt/kvm/arm/arm.c
View File

@ -360,11 +360,6 @@ void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
preempt_enable();
}
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
return 0;
}
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
int *last_ran;

16
virt/kvm/kvm_main.c
View File

@ -324,7 +324,6 @@ void kvm_reload_remote_mmus(struct kvm *kvm)
static int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
{
struct page *page;
int r;
mutex_init(&vcpu->mutex);
vcpu->cpu = -1;
@ -338,10 +337,8 @@ static int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
INIT_LIST_HEAD(&vcpu->blocked_vcpu_list);
page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!page) {
r = -ENOMEM;
goto fail;
}
if (!page)
return -ENOMEM;
vcpu->run = page_address(page);
kvm_vcpu_set_in_spin_loop(vcpu, false);
@ -350,15 +347,7 @@ static int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
vcpu->ready = false;
preempt_notifier_init(&vcpu->preempt_notifier, &kvm_preempt_ops);
r = kvm_arch_vcpu_init(vcpu);
if (r < 0)
goto fail_free_run;
return 0;
fail_free_run:
free_page((unsigned long)vcpu->run);
fail:
return r;
}
static void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
@ -369,7 +358,6 @@ static void kvm_vcpu_uninit(struct kvm_vcpu *vcpu)
* descriptors are already gone.
*/
put_pid(rcu_dereference_protected(vcpu->pid, 1));
kvm_arch_vcpu_uninit(vcpu);
free_page((unsigned long)vcpu->run);
}