aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kvm/kvm-ia64.c29
-rw-r--r--arch/powerpc/kvm/powerpc.c16
-rw-r--r--arch/s390/kvm/kvm-s390.c31
-rw-r--r--arch/x86/kvm/i8254.c7
-rw-r--r--arch/x86/kvm/mmu.c6
-rw-r--r--arch/x86/kvm/x86.c25
6 files changed, 56 insertions, 58 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index d1f7bcda2c7..5c766bd82b0 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -337,13 +337,12 @@ static struct kvm_vcpu *lid_to_vcpu(struct kvm *kvm, unsigned long id,
{
union ia64_lid lid;
int i;
+ struct kvm_vcpu *vcpu;
- for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) {
- if (kvm->vcpus[i]) {
- lid.val = VCPU_LID(kvm->vcpus[i]);
- if (lid.id == id && lid.eid == eid)
- return kvm->vcpus[i];
- }
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ lid.val = VCPU_LID(vcpu);
+ if (lid.id == id && lid.eid == eid)
+ return vcpu;
}
return NULL;
@@ -409,21 +408,21 @@ static int handle_global_purge(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
struct kvm *kvm = vcpu->kvm;
struct call_data call_data;
int i;
+ struct kvm_vcpu *vcpui;
call_data.ptc_g_data = p->u.ptc_g_data;
- for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) {
- if (!kvm->vcpus[i] || kvm->vcpus[i]->arch.mp_state ==
- KVM_MP_STATE_UNINITIALIZED ||
- vcpu == kvm->vcpus[i])
+ kvm_for_each_vcpu(i, vcpui, kvm) {
+ if (vcpui->arch.mp_state == KVM_MP_STATE_UNINITIALIZED ||
+ vcpu == vcpui)
continue;
- if (waitqueue_active(&kvm->vcpus[i]->wq))
- wake_up_interruptible(&kvm->vcpus[i]->wq);
+ if (waitqueue_active(&vcpui->wq))
+ wake_up_interruptible(&vcpui->wq);
- if (kvm->vcpus[i]->cpu != -1) {
- call_data.vcpu = kvm->vcpus[i];
- smp_call_function_single(kvm->vcpus[i]->cpu,
+ if (vcpui->cpu != -1) {
+ call_data.vcpu = vcpui;
+ smp_call_function_single(vcpui->cpu,
vcpu_global_purge, &call_data, 1);
} else
printk(KERN_WARNING"kvm: Uninit vcpu received ipi!\n");
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 2cf915e51e7..7ad30e0a1b9 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -122,13 +122,17 @@ struct kvm *kvm_arch_create_vm(void)
static void kvmppc_free_vcpus(struct kvm *kvm)
{
unsigned int i;
+ struct kvm_vcpu *vcpu;
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- if (kvm->vcpus[i]) {
- kvm_arch_vcpu_free(kvm->vcpus[i]);
- kvm->vcpus[i] = NULL;
- }
- }
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_arch_vcpu_free(vcpu);
+
+ mutex_lock(&kvm->lock);
+ for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
+ kvm->vcpus[i] = NULL;
+
+ atomic_set(&kvm->online_vcpus, 0);
+ mutex_unlock(&kvm->lock);
}
void kvm_arch_sync_events(struct kvm *kvm)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 098bfa6fbdf..07ced89740d 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -211,13 +211,17 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
static void kvm_free_vcpus(struct kvm *kvm)
{
unsigned int i;
+ struct kvm_vcpu *vcpu;
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- if (kvm->vcpus[i]) {
- kvm_arch_vcpu_destroy(kvm->vcpus[i]);
- kvm->vcpus[i] = NULL;
- }
- }
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_arch_vcpu_destroy(vcpu);
+
+ mutex_lock(&kvm->lock);
+ for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
+ kvm->vcpus[i] = NULL;
+
+ atomic_set(&kvm->online_vcpus, 0);
+ mutex_unlock(&kvm->lock);
}
void kvm_arch_sync_events(struct kvm *kvm)
@@ -314,8 +318,6 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
BUG_ON(!kvm->arch.sca);
if (!kvm->arch.sca->cpu[id].sda)
kvm->arch.sca->cpu[id].sda = (__u64) vcpu->arch.sie_block;
- else
- BUG_ON(!kvm->vcpus[id]); /* vcpu does already exist */
vcpu->arch.sie_block->scaoh = (__u32)(((__u64)kvm->arch.sca) >> 32);
vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca;
@@ -683,6 +685,7 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
int user_alloc)
{
int i;
+ struct kvm_vcpu *vcpu;
/* A few sanity checks. We can have exactly one memory slot which has
to start at guest virtual zero and which has to be located at a
@@ -707,14 +710,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
return -EINVAL;
/* request update of sie control block for all available vcpus */
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- if (kvm->vcpus[i]) {
- if (test_and_set_bit(KVM_REQ_MMU_RELOAD,
- &kvm->vcpus[i]->requests))
- continue;
- kvm_s390_inject_sigp_stop(kvm->vcpus[i],
- ACTION_RELOADVCPU_ON_STOP);
- }
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ if (test_and_set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests))
+ continue;
+ kvm_s390_inject_sigp_stop(vcpu, ACTION_RELOADVCPU_ON_STOP);
}
return 0;
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 06d8f84ae8a..15fc95b2fc0 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -669,11 +669,8 @@ static void __inject_pit_timer_intr(struct kvm *kvm)
* VCPU0, and only if its LVT0 is in EXTINT mode.
*/
if (kvm->arch.vapics_in_nmi_mode > 0)
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- vcpu = kvm->vcpus[i];
- if (vcpu)
- kvm_apic_nmi_wd_deliver(vcpu);
- }
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_apic_nmi_wd_deliver(vcpu);
}
void kvm_inject_pit_timer_irqs(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d443a421ca3..5f97dbd2429 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1347,10 +1347,10 @@ static void kvm_mmu_put_page(struct kvm_mmu_page *sp, u64 *parent_pte)
static void kvm_mmu_reset_last_pte_updated(struct kvm *kvm)
{
int i;
+ struct kvm_vcpu *vcpu;
- for (i = 0; i < KVM_MAX_VCPUS; ++i)
- if (kvm->vcpus[i])
- kvm->vcpus[i]->arch.last_pte_updated = NULL;
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ vcpu->arch.last_pte_updated = NULL;
}
static void kvm_mmu_unlink_parents(struct kvm *kvm, struct kvm_mmu_page *sp)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d8adc1da76d..89862a80e32 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2946,10 +2946,7 @@ static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long va
spin_lock(&kvm_lock);
list_for_each_entry(kvm, &vm_list, vm_list) {
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- vcpu = kvm->vcpus[i];
- if (!vcpu)
- continue;
+ kvm_for_each_vcpu(i, vcpu, kvm) {
if (vcpu->cpu != freq->cpu)
continue;
if (!kvm_request_guest_time_update(vcpu))
@@ -4678,20 +4675,22 @@ static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
static void kvm_free_vcpus(struct kvm *kvm)
{
unsigned int i;
+ struct kvm_vcpu *vcpu;
/*
* Unpin any mmu pages first.
*/
- for (i = 0; i < KVM_MAX_VCPUS; ++i)
- if (kvm->vcpus[i])
- kvm_unload_vcpu_mmu(kvm->vcpus[i]);
- for (i = 0; i < KVM_MAX_VCPUS; ++i) {
- if (kvm->vcpus[i]) {
- kvm_arch_vcpu_free(kvm->vcpus[i]);
- kvm->vcpus[i] = NULL;
- }
- }
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_unload_vcpu_mmu(vcpu);
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ kvm_arch_vcpu_free(vcpu);
+
+ mutex_lock(&kvm->lock);
+ for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
+ kvm->vcpus[i] = NULL;
+ atomic_set(&kvm->online_vcpus, 0);
+ mutex_unlock(&kvm->lock);
}
void kvm_arch_sync_events(struct kvm *kvm)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 00:23:55 +0000