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-rw-r--r--arch/mips/kvm/mips.c33
-rw-r--r--arch/powerpc/kvm/powerpc.c27
-rw-r--r--arch/s390/kvm/kvm-s390.c41
-rw-r--r--arch/x86/kvm/x86.c28
-rw-r--r--include/linux/kvm_host.h2
-rw-r--r--virt/kvm/arm/arm.c29
-rw-r--r--virt/kvm/kvm_main.c21
7 files changed, 43 insertions, 138 deletions
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 8546bc6e09e7..92c9321b3f95 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -285,25 +285,14 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
return 0;
}
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
{
int err, size;
void *gebase, *p, *handler, *refill_start, *refill_end;
int i;
- struct kvm_vcpu *vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
-
- if (!vcpu) {
- err = -ENOMEM;
- goto out;
- }
-
- err = kvm_vcpu_init(vcpu, kvm, id);
-
- if (err)
- goto out_free_cpu;
-
- kvm_debug("kvm @ %p: create cpu %d at %p\n", kvm, id, vcpu);
+ kvm_debug("kvm @ %p: create cpu %d at %p\n",
+ vcpu->kvm, vcpu->vcpu_id, vcpu);
/*
* Allocate space for host mode exception handlers that handle
@@ -318,7 +307,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
if (!gebase) {
err = -ENOMEM;
- goto out_uninit_cpu;
+ goto out;
}
kvm_debug("Allocated %d bytes for KVM Exception Handlers @ %p\n",
ALIGN(size, PAGE_SIZE), gebase);
@@ -397,19 +386,12 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
vcpu->arch.last_sched_cpu = -1;
vcpu->arch.last_exec_cpu = -1;
- return vcpu;
+ return 0;
out_free_gebase:
kfree(gebase);
-
-out_uninit_cpu:
- kvm_vcpu_uninit(vcpu);
-
-out_free_cpu:
- kmem_cache_free(kvm_vcpu_cache, vcpu);
-
out:
- return ERR_PTR(err);
+ return err;
}
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
@@ -421,9 +403,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
kvm_mmu_free_memory_caches(vcpu);
kfree(vcpu->arch.guest_ebase);
kfree(vcpu->arch.kseg0_commpage);
-
- kvm_vcpu_uninit(vcpu);
- kmem_cache_free(kvm_vcpu_cache, vcpu);
}
int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index e3e2b88d3d8b..fce1b4776e55 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -725,32 +725,17 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
return 0;
}
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu;
int err;
- vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
- if (!vcpu)
- return ERR_PTR(-ENOMEM);
-
- err = kvm_vcpu_init(vcpu, kvm, id);
- if (err)
- goto free_vcpu;
-
err = kvmppc_core_vcpu_create(vcpu);
if (err)
- goto uninit_vcpu;
+ return err;
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);
+ kvmppc_create_vcpu_debugfs(vcpu, vcpu->vcpu_id);
+ return 0;
}
void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
@@ -780,10 +765,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
}
kvmppc_core_vcpu_free(vcpu);
-
- kvm_vcpu_uninit(vcpu);
-
- kmem_cache_free(kvm_vcpu_cache, vcpu);
}
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 8543d338a06a..9cba1e5d033b 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2530,9 +2530,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
if (vcpu->kvm->arch.use_cmma)
kvm_s390_vcpu_unsetup_cmma(vcpu);
free_page((unsigned long)(vcpu->arch.sie_block));
-
- kvm_vcpu_uninit(vcpu);
- kmem_cache_free(kvm_vcpu_cache, vcpu);
}
static void kvm_free_vcpus(struct kvm *kvm)
@@ -3014,29 +3011,15 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
return 0;
}
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
- unsigned int id)
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu;
struct sie_page *sie_page;
int rc;
- rc = -ENOMEM;
-
- vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
- if (!vcpu)
- goto out;
-
- rc = kvm_vcpu_init(vcpu, kvm, id);
- if (rc)
- goto out_free_cpu;
-
- rc = -ENOMEM;
-
BUILD_BUG_ON(sizeof(struct sie_page) != 4096);
sie_page = (struct sie_page *) get_zeroed_page(GFP_KERNEL);
if (!sie_page)
- goto out_uninit_vcpu;
+ return -ENOMEM;
vcpu->arch.sie_block = &sie_page->sie_block;
vcpu->arch.sie_block->itdba = (unsigned long) &sie_page->itdb;
@@ -3045,9 +3028,9 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
vcpu->arch.sie_block->mso = 0;
vcpu->arch.sie_block->msl = sclp.hamax;
- vcpu->arch.sie_block->icpua = id;
+ vcpu->arch.sie_block->icpua = vcpu->vcpu_id;
spin_lock_init(&vcpu->arch.local_int.lock);
- vcpu->arch.sie_block->gd = (u32)(u64)kvm->arch.gisa_int.origin;
+ vcpu->arch.sie_block->gd = (u32)(u64)vcpu->kvm->arch.gisa_int.origin;
if (vcpu->arch.sie_block->gd && sclp.has_gisaf)
vcpu->arch.sie_block->gd |= GISA_FORMAT1;
seqcount_init(&vcpu->arch.cputm_seqcount);
@@ -3083,19 +3066,15 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
goto out_free_sie_block;
}
- VM_EVENT(kvm, 3, "create cpu %d at 0x%pK, sie block at 0x%pK", id, vcpu,
- vcpu->arch.sie_block);
- trace_kvm_s390_create_vcpu(id, vcpu, vcpu->arch.sie_block);
+ VM_EVENT(vcpu->kvm, 3, "create cpu %d at 0x%pK, sie block at 0x%pK",
+ vcpu->vcpu_id, vcpu, vcpu->arch.sie_block);
+ trace_kvm_s390_create_vcpu(vcpu->vcpu_id, vcpu, vcpu->arch.sie_block);
+
+ return 0;
- return vcpu;
out_free_sie_block:
free_page((unsigned long)(vcpu->arch.sie_block));
-out_uninit_vcpu:
- kvm_vcpu_uninit(vcpu);
-out_free_cpu:
- kmem_cache_free(kvm_vcpu_cache, vcpu);
-out:
- return ERR_PTR(rc);
+ return rc;
}
int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 42b9149f6b40..7bbde6f658bf 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -9179,30 +9179,9 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
return 0;
}
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
- unsigned int id)
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *vcpu;
- int r;
-
- vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL_ACCOUNT);
- if (!vcpu)
- return ERR_PTR(-ENOMEM);
-
- r = kvm_vcpu_init(vcpu, kvm, id);
- if (r)
- goto free_vcpu;
-
- r = kvm_x86_ops->vcpu_create(vcpu);
- if (r)
- goto uninit_vcpu;
- return vcpu;
-
-uninit_vcpu:
- kvm_vcpu_uninit(vcpu);
-free_vcpu:
- kmem_cache_free(kvm_vcpu_cache, vcpu);
- return ERR_PTR(r);
+ return kvm_x86_ops->vcpu_create(vcpu);
}
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
@@ -9254,9 +9233,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
free_cpumask_var(vcpu->arch.wbinvd_dirty_mask);
kmem_cache_free(x86_fpu_cache, vcpu->arch.user_fpu);
kmem_cache_free(x86_fpu_cache, vcpu->arch.guest_fpu);
-
- kvm_vcpu_uninit(vcpu);
- kmem_cache_free(kvm_vcpu_cache, vcpu);
}
void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 432827ab7623..405ea07068f1 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -876,7 +876,7 @@ void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id);
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu);
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 0d8fb6973414..a7d661fc5683 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -290,32 +290,9 @@ int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)
return 0;
}
-struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id)
+int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
{
- int err;
- struct kvm_vcpu *vcpu;
-
- vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
- if (!vcpu) {
- err = -ENOMEM;
- goto out;
- }
-
- err = kvm_vcpu_init(vcpu, kvm, id);
- if (err)
- goto free_vcpu;
-
- err = create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP);
- if (err)
- goto vcpu_uninit;
-
- return vcpu;
-vcpu_uninit:
- kvm_vcpu_uninit(vcpu);
-free_vcpu:
- kmem_cache_free(kvm_vcpu_cache, vcpu);
-out:
- return ERR_PTR(err);
+ return create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP);
}
void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
@@ -330,8 +307,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
kvm_mmu_free_memory_caches(vcpu);
kvm_timer_vcpu_terminate(vcpu);
kvm_pmu_vcpu_destroy(vcpu);
- kvm_vcpu_uninit(vcpu);
- kmem_cache_free(kvm_vcpu_cache, vcpu);
}
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 62ba25e44189..c84df40518c4 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -378,6 +378,9 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_uninit);
void kvm_vcpu_destroy(struct kvm_vcpu *vcpu)
{
kvm_arch_vcpu_destroy(vcpu);
+
+ kvm_vcpu_uninit(vcpu);
+ kmem_cache_free(kvm_vcpu_cache, vcpu);
}
EXPORT_SYMBOL_GPL(kvm_vcpu_destroy);
@@ -2738,12 +2741,20 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
if (r)
goto vcpu_decrement;
- vcpu = kvm_arch_vcpu_create(kvm, id);
- if (IS_ERR(vcpu)) {
- r = PTR_ERR(vcpu);
+ vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+ if (!vcpu) {
+ r = -ENOMEM;
goto vcpu_decrement;
}
+ r = kvm_vcpu_init(vcpu, kvm, id);
+ if (r)
+ goto vcpu_free;
+
+ r = kvm_arch_vcpu_create(vcpu);
+ if (r)
+ goto vcpu_uninit;
+
preempt_notifier_init(&vcpu->preempt_notifier, &kvm_preempt_ops);
r = kvm_arch_vcpu_setup(vcpu);
@@ -2787,6 +2798,10 @@ unlock_vcpu_destroy:
debugfs_remove_recursive(vcpu->debugfs_dentry);
vcpu_destroy:
kvm_arch_vcpu_destroy(vcpu);
+vcpu_uninit:
+ kvm_vcpu_uninit(vcpu);
+vcpu_free:
+ kmem_cache_free(kvm_vcpu_cache, vcpu);
vcpu_decrement:
mutex_lock(&kvm->lock);
kvm->created_vcpus--;
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-23 20:00:57 +0000