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KVM: PPC: Move kvm_vcpu_init() invocation to common code
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Move the kvm_cpu_{un}init() calls to common PPC code as an intermediate
step towards removing kvm_cpu_{un}init() altogether.

No functional change intended.

Signed-off-by: Sean Christopherson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
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@bonzini
Sean Christopherson authored and bonzini committed Jan 24, 2020
1 parent 4dbf6fe commit ff030fd
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Showing 8 changed files with 29 additions and 55 deletions.
6 changes: 2 additions & 4 deletions arch/powerpc/include/asm/kvm_ppc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -119,8 +119,7 @@ extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
enum xlate_instdata xlid, enum xlate_readwrite xlrw,
struct kvmppc_pte *pte);

extern int kvmppc_core_vcpu_create(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id);
extern int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu);
extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
extern int kvmppc_core_check_processor_compat(void);
Expand Down Expand Up @@ -274,8 +273,7 @@ struct kvmppc_ops {
void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags);
void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
int (*vcpu_create)(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id);
int (*vcpu_create)(struct kvm_vcpu *vcpu);
void (*vcpu_free)(struct kvm_vcpu *vcpu);
int (*check_requests)(struct kvm_vcpu *vcpu);
int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
Expand Down
5 changes: 2 additions & 3 deletions arch/powerpc/kvm/book3s.c
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Original file line number Diff line number Diff line change
Expand Up @@ -789,10 +789,9 @@ void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
kvm_vcpu_kick(vcpu);
}

int kvmppc_core_vcpu_create(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu)
{
return kvm->arch.kvm_ops->vcpu_create(kvm, vcpu, id);
return vcpu->kvm->arch.kvm_ops->vcpu_create(vcpu);
}

void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
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17 changes: 6 additions & 11 deletions arch/powerpc/kvm/book3s_hv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2271,16 +2271,16 @@ static void debugfs_vcpu_init(struct kvm_vcpu *vcpu, unsigned int id)
}
#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */

static int kvmppc_core_vcpu_create_hv(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
static int kvmppc_core_vcpu_create_hv(struct kvm_vcpu *vcpu)
{
int err;
int core;
struct kvmppc_vcore *vcore;
struct kvm *kvm;
unsigned int id;

err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
return err;
kvm = vcpu->kvm;
id = vcpu->vcpu_id;

vcpu->arch.shared = &vcpu->arch.shregs;
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
Expand Down Expand Up @@ -2362,7 +2362,7 @@ static int kvmppc_core_vcpu_create_hv(struct kvm *kvm, struct kvm_vcpu *vcpu,
mutex_unlock(&kvm->lock);

if (!vcore)
goto uninit_vcpu;
return err;

spin_lock(&vcore->lock);
++vcore->num_threads;
Expand All @@ -2378,10 +2378,6 @@ static int kvmppc_core_vcpu_create_hv(struct kvm *kvm, struct kvm_vcpu *vcpu,
debugfs_vcpu_init(vcpu, id);

return 0;

uninit_vcpu:
kvm_vcpu_uninit(vcpu);
return err;
}

static int kvmhv_set_smt_mode(struct kvm *kvm, unsigned long smt_mode,
Expand Down Expand Up @@ -2435,7 +2431,6 @@ static void kvmppc_core_vcpu_free_hv(struct kvm_vcpu *vcpu)
unpin_vpa(vcpu->kvm, &vcpu->arch.slb_shadow);
unpin_vpa(vcpu->kvm, &vcpu->arch.vpa);
spin_unlock(&vcpu->arch.vpa_update_lock);
kvm_vcpu_uninit(vcpu);
}

static int kvmppc_core_check_requests_hv(struct kvm_vcpu *vcpu)
Expand Down
13 changes: 3 additions & 10 deletions arch/powerpc/kvm/book3s_pr.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1744,22 +1744,17 @@ static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
return r;
}

static int kvmppc_core_vcpu_create_pr(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
static int kvmppc_core_vcpu_create_pr(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_book3s *vcpu_book3s;
unsigned long p;
int err;

err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
return err;

err = -ENOMEM;

vcpu_book3s = vzalloc(sizeof(struct kvmppc_vcpu_book3s));
if (!vcpu_book3s)
goto uninit_vcpu;
goto out;
vcpu->arch.book3s = vcpu_book3s;

#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
Expand Down Expand Up @@ -1814,8 +1809,7 @@ static int kvmppc_core_vcpu_create_pr(struct kvm *kvm, struct kvm_vcpu *vcpu,
free_vcpu3s:
#endif
vfree(vcpu_book3s);
uninit_vcpu:
kvm_vcpu_uninit(vcpu);
out:
return err;
}

Expand All @@ -1824,7 +1818,6 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);

free_page((unsigned long)vcpu->arch.shared & PAGE_MASK);
kvm_vcpu_uninit(vcpu);
#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
kfree(vcpu->arch.shadow_vcpu);
#endif
Expand Down
5 changes: 2 additions & 3 deletions arch/powerpc/kvm/booke.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2114,10 +2114,9 @@ int kvmppc_core_init_vm(struct kvm *kvm)
return kvm->arch.kvm_ops->init_vm(kvm);
}

int kvmppc_core_vcpu_create(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu)
{
return kvm->arch.kvm_ops->vcpu_create(kvm, vcpu, id);
return vcpu->kvm->arch.kvm_ops->vcpu_create(vcpu);
}

void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
Expand Down
16 changes: 3 additions & 13 deletions arch/powerpc/kvm/e500.c
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Original file line number Diff line number Diff line change
Expand Up @@ -433,23 +433,16 @@ static int kvmppc_set_one_reg_e500(struct kvm_vcpu *vcpu, u64 id,
return r;
}

static int kvmppc_core_vcpu_create_e500(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
static int kvmppc_core_vcpu_create_e500(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_e500 *vcpu_e500;
int err;

BUILD_BUG_ON(offsetof(struct kvmppc_vcpu_e500, vcpu) != 0);
vcpu_e500 = to_e500(vcpu);

err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
return err;

if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL) {
err = -ENOMEM;
goto uninit_vcpu;
}
if (kvmppc_e500_id_table_alloc(vcpu_e500) == NULL)
return -ENOMEM;

err = kvmppc_e500_tlb_init(vcpu_e500);
if (err)
Expand All @@ -467,8 +460,6 @@ static int kvmppc_core_vcpu_create_e500(struct kvm *kvm, struct kvm_vcpu *vcpu,
kvmppc_e500_tlb_uninit(vcpu_e500);
uninit_id:
kvmppc_e500_id_table_free(vcpu_e500);
uninit_vcpu:
kvm_vcpu_uninit(vcpu);
return err;
}

Expand All @@ -479,7 +470,6 @@ static void kvmppc_core_vcpu_free_e500(struct kvm_vcpu *vcpu)
free_page((unsigned long)vcpu->arch.shared);
kvmppc_e500_tlb_uninit(vcpu_e500);
kvmppc_e500_id_table_free(vcpu_e500);
kvm_vcpu_uninit(vcpu);
}

static int kvmppc_core_init_vm_e500(struct kvm *kvm)
Expand Down
12 changes: 2 additions & 10 deletions arch/powerpc/kvm/e500mc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -301,25 +301,20 @@ static int kvmppc_set_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
return r;
}

static int kvmppc_core_vcpu_create_e500mc(struct kvm *kvm, struct kvm_vcpu *vcpu,
unsigned int id)
static int kvmppc_core_vcpu_create_e500mc(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_e500 *vcpu_e500;
int err;

BUILD_BUG_ON(offsetof(struct kvmppc_vcpu_e500, vcpu) != 0);
vcpu_e500 = to_e500(vcpu);

err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
return err;

/* Invalid PIR value -- this LPID dosn't have valid state on any cpu */
vcpu->arch.oldpir = 0xffffffff;

err = kvmppc_e500_tlb_init(vcpu_e500);
if (err)
goto uninit_vcpu;
return err;

vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
if (!vcpu->arch.shared) {
Expand All @@ -331,8 +326,6 @@ static int kvmppc_core_vcpu_create_e500mc(struct kvm *kvm, struct kvm_vcpu *vcpu

uninit_tlb:
kvmppc_e500_tlb_uninit(vcpu_e500);
uninit_vcpu:
kvm_vcpu_uninit(vcpu);
return err;
}

Expand All @@ -342,7 +335,6 @@ static void kvmppc_core_vcpu_free_e500mc(struct kvm_vcpu *vcpu)

free_page((unsigned long)vcpu->arch.shared);
kvmppc_e500_tlb_uninit(vcpu_e500);
kvm_vcpu_uninit(vcpu);
}

static int kvmppc_core_init_vm_e500mc(struct kvm *kvm)
Expand Down
10 changes: 9 additions & 1 deletion arch/powerpc/kvm/powerpc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -729,14 +729,20 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
if (!vcpu)
return ERR_PTR(-ENOMEM);

err = kvmppc_core_vcpu_create(kvm, vcpu, id);
err = kvm_vcpu_init(vcpu, kvm, id);
if (err)
goto free_vcpu;

err = kvmppc_core_vcpu_create(vcpu);
if (err)
goto uninit_vcpu;

vcpu->arch.wqp = &vcpu->wq;
kvmppc_create_vcpu_debugfs(vcpu, id);
return vcpu;

uninit_vcpu:
kvm_vcpu_uninit(vcpu);
free_vcpu:
kmem_cache_free(kvm_vcpu_cache, vcpu);
return ERR_PTR(err);
Expand Down Expand Up @@ -770,6 +776,8 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)

kvmppc_core_vcpu_free(vcpu);

kvm_vcpu_uninit(vcpu);

kmem_cache_free(kvm_vcpu_cache, vcpu);
}

Expand Down

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