From: Qing He Date: Thu, 12 Jul 2007 09:33:56 +0000 (+0300) Subject: KVM: SMP: Add vcpu_id field in struct vcpu X-Git-Tag: v2.6.24-rc1~1365^2~103 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dad3795d2baa4e02cbfd161d9089c73dea16b4ba;p=linux-2.6 KVM: SMP: Add vcpu_id field in struct vcpu This patch adds a `vcpu_id' field in `struct vcpu', so we can differentiate BSP and APs without pointer comparison or arithmetic. Signed-off-by: Qing He Signed-off-by: Avi Kivity --- diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index 336be86c6f..b629a83eb8 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -328,6 +328,7 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus, struct kvm_vcpu { struct kvm *kvm; + int vcpu_id; union { struct vmcs *vmcs; struct vcpu_svm *svm; diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 36a458f13e..df9c05e9b3 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -2355,6 +2355,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n) goto out; vcpu = &kvm->vcpus[n]; + vcpu->vcpu_id = n; mutex_lock(&vcpu->mutex); diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index bc818cc126..52a11ccdf0 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -591,7 +591,7 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) fx_init(vcpu); vcpu->fpu_active = 1; vcpu->apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; - if (vcpu == &vcpu->kvm->vcpus[0]) + if (vcpu->vcpu_id == 0) vcpu->apic_base |= MSR_IA32_APICBASE_BSP; return 0; diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index 80628f6991..7fa62c780c 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1253,7 +1253,7 @@ static int vmx_vcpu_setup(struct kvm_vcpu *vcpu) vcpu->regs[VCPU_REGS_RDX] = get_rdx_init_val(); vcpu->cr8 = 0; vcpu->apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; - if (vcpu == &vcpu->kvm->vcpus[0]) + if (vcpu->vcpu_id == 0) vcpu->apic_base |= MSR_IA32_APICBASE_BSP; fx_init(vcpu);