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authorQing He <qing.he@intel.com>2007-07-12 12:33:56 +0300
committerAvi Kivity <avi@qumranet.com>2007-07-12 12:33:56 +0300
commit973ae594c1a65936fc09acab412be51d97b703b9 (patch)
tree2cf9d753130a46622164ad99db0abc898eb9dd14
parent0532360c9842b9529f3432f2f168d3edf23fa90e (diff)
KVM: SMP: Add vcpu_id field in struct vcpukvm-29
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 <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--drivers/kvm/kvm.h1
-rw-r--r--drivers/kvm/kvm_main.c1
-rw-r--r--drivers/kvm/svm.c2
-rw-r--r--drivers/kvm/vmx.c2
4 files changed, 4 insertions, 2 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 65ab268d4256..0f7a4d981756 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 a4429eb4a40d..4d2ef9b9035c 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2387,6 +2387,7 @@ 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 bc818cc126e3..52a11ccdf0c2 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 80628f69916d..7fa62c780ce4 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);