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authorGleb Natapov <gleb@redhat.com>2009-06-09 14:56:28 +0200
committerAvi Kivity <avi@redhat.com>2009-09-10 07:32:52 +0200
commit73880c80aa9c8dc353cd0ad26579023213cd5314 (patch)
treed5bee5c87c3468feb941cc898e342f52c0adce19 /arch/ia64/kvm/kvm-ia64.c
parentKVM: Use pointer to vcpu instead of vcpu_id in timer code. (diff)
downloadlinux-73880c80aa9c8dc353cd0ad26579023213cd5314.tar.xz
linux-73880c80aa9c8dc353cd0ad26579023213cd5314.zip
KVM: Break dependency between vcpu index in vcpus array and vcpu_id.
Archs are free to use vcpu_id as they see fit. For x86 it is used as vcpu's apic id. New ioctl is added to configure boot vcpu id that was assumed to be 0 till now. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/ia64/kvm/kvm-ia64.c')
-rw-r--r--arch/ia64/kvm/kvm-ia64.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 4082665ace0a..d1f7bcda2c7f 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -338,7 +338,7 @@ static struct kvm_vcpu *lid_to_vcpu(struct kvm *kvm, unsigned long id,
union ia64_lid lid;
int i;
- for (i = 0; i < kvm->arch.online_vcpus; i++) {
+ 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)
@@ -412,7 +412,7 @@ static int handle_global_purge(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
call_data.ptc_g_data = p->u.ptc_g_data;
- for (i = 0; i < kvm->arch.online_vcpus; i++) {
+ 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])
@@ -852,8 +852,6 @@ struct kvm *kvm_arch_create_vm(void)
kvm_init_vm(kvm);
- kvm->arch.online_vcpus = 0;
-
return kvm;
}
@@ -1356,8 +1354,6 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
goto fail;
}
- kvm->arch.online_vcpus++;
-
return vcpu;
fail:
return ERR_PTR(r);