From 73880c80aa9c8dc353cd0ad26579023213cd5314 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Tue, 9 Jun 2009 15:56:28 +0300 Subject: 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 Signed-off-by: Avi Kivity --- arch/ia64/include/asm/kvm_host.h | 1 - arch/ia64/kvm/Kconfig | 1 + arch/ia64/kvm/kvm-ia64.c | 8 ++------ arch/ia64/kvm/vcpu.c | 2 +- 4 files changed, 4 insertions(+), 8 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h index 5f43697..9cf1c4b 100644 --- a/arch/ia64/include/asm/kvm_host.h +++ b/arch/ia64/include/asm/kvm_host.h @@ -465,7 +465,6 @@ struct kvm_arch { unsigned long metaphysical_rr4; unsigned long vmm_init_rr; - int online_vcpus; int is_sn2; struct kvm_ioapic *vioapic; diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig index f922bbb..cbadd8a 100644 --- a/arch/ia64/kvm/Kconfig +++ b/arch/ia64/kvm/Kconfig @@ -25,6 +25,7 @@ config KVM select PREEMPT_NOTIFIERS select ANON_INODES select HAVE_KVM_IRQCHIP + select KVM_APIC_ARCHITECTURE ---help--- Support hosting fully virtualized guest machines using hardware virtualization extensions. You will need a fairly recent diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 4082665..d1f7bcd 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); diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c index 61a3320..dce75b70 100644 --- a/arch/ia64/kvm/vcpu.c +++ b/arch/ia64/kvm/vcpu.c @@ -831,7 +831,7 @@ static void vcpu_set_itc(struct kvm_vcpu *vcpu, u64 val) kvm = (struct kvm *)KVM_VM_BASE; if (kvm_vcpu_is_bsp(vcpu)) { - for (i = 0; i < kvm->arch.online_vcpus; i++) { + for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) { v = (struct kvm_vcpu *)((char *)vcpu + sizeof(struct kvm_vcpu_data) * i); VMX(v, itc_offset) = itc_offset; -- cgit v1.1