diff options
author | Gleb Natapov <gleb@redhat.com> | 2009-06-09 15:56:26 +0300 |
---|---|---|
committer | Avi Kivity <avi@redhat.com> | 2009-09-10 08:32:51 +0300 |
commit | c5af89b68abb26eea5e745f33228f4d672f115e5 (patch) | |
tree | aad12571ebedea7b869adbeec27e614c498715f4 | |
parent | d555c333aa544b222fe077adcd5dfea024b2c913 (diff) | |
download | kernel-crypto-c5af89b68abb26eea5e745f33228f4d672f115e5.tar.gz kernel-crypto-c5af89b68abb26eea5e745f33228f4d672f115e5.tar.xz kernel-crypto-c5af89b68abb26eea5e745f33228f4d672f115e5.zip |
KVM: Introduce kvm_vcpu_is_bsp() function.
Use it instead of open code "vcpu_id zero is BSP" assumption.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r-- | arch/ia64/kvm/kvm-ia64.c | 2 | ||||
-rw-r--r-- | arch/ia64/kvm/vcpu.c | 2 | ||||
-rw-r--r-- | arch/x86/kvm/i8254.c | 4 | ||||
-rw-r--r-- | arch/x86/kvm/i8259.c | 6 | ||||
-rw-r--r-- | arch/x86/kvm/lapic.c | 7 | ||||
-rw-r--r-- | arch/x86/kvm/svm.c | 4 | ||||
-rw-r--r-- | arch/x86/kvm/vmx.c | 6 | ||||
-rw-r--r-- | arch/x86/kvm/x86.c | 4 | ||||
-rw-r--r-- | include/linux/kvm_host.h | 5 | ||||
-rw-r--r-- | virt/kvm/ioapic.c | 4 | ||||
-rw-r--r-- | virt/kvm/kvm_main.c | 2 |
11 files changed, 28 insertions, 18 deletions
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 8dde36953af..4082665ace0 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1216,7 +1216,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) if (IS_ERR(vmm_vcpu)) return PTR_ERR(vmm_vcpu); - if (vcpu->vcpu_id == 0) { + if (kvm_vcpu_is_bsp(vcpu)) { vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; /*Set entry address for first run.*/ diff --git a/arch/ia64/kvm/vcpu.c b/arch/ia64/kvm/vcpu.c index cc406d064a0..61a3320b62c 100644 --- a/arch/ia64/kvm/vcpu.c +++ b/arch/ia64/kvm/vcpu.c @@ -830,7 +830,7 @@ static void vcpu_set_itc(struct kvm_vcpu *vcpu, u64 val) kvm = (struct kvm *)KVM_VM_BASE; - if (vcpu->vcpu_id == 0) { + if (kvm_vcpu_is_bsp(vcpu)) { for (i = 0; i < kvm->arch.online_vcpus; i++) { v = (struct kvm_vcpu *)((char *)vcpu + sizeof(struct kvm_vcpu_data) * i); diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c index 3837db65d33..008a8318506 100644 --- a/arch/x86/kvm/i8254.c +++ b/arch/x86/kvm/i8254.c @@ -231,7 +231,7 @@ int pit_has_pending_timer(struct kvm_vcpu *vcpu) { struct kvm_pit *pit = vcpu->kvm->arch.vpit; - if (pit && vcpu->vcpu_id == 0 && pit->pit_state.irq_ack) + if (pit && kvm_vcpu_is_bsp(vcpu) && pit->pit_state.irq_ack) return atomic_read(&pit->pit_state.pit_timer.pending); return 0; } @@ -252,7 +252,7 @@ void __kvm_migrate_pit_timer(struct kvm_vcpu *vcpu) struct kvm_pit *pit = vcpu->kvm->arch.vpit; struct hrtimer *timer; - if (vcpu->vcpu_id != 0 || !pit) + if (!kvm_vcpu_is_bsp(vcpu) || !pit) return; timer = &pit->pit_state.pit_timer.timer; diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index bf94a45f4f8..148c52a608d 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -57,7 +57,7 @@ static void pic_unlock(struct kvm_pic *s) } if (wakeup) { - vcpu = s->kvm->vcpus[0]; + vcpu = s->kvm->bsp_vcpu; if (vcpu) kvm_vcpu_kick(vcpu); } @@ -254,7 +254,7 @@ void kvm_pic_reset(struct kvm_kpic_state *s) { int irq, irqbase, n; struct kvm *kvm = s->pics_state->irq_request_opaque; - struct kvm_vcpu *vcpu0 = kvm->vcpus[0]; + struct kvm_vcpu *vcpu0 = kvm->bsp_vcpu; if (s == &s->pics_state->pics[0]) irqbase = 0; @@ -512,7 +512,7 @@ static void picdev_read(struct kvm_io_device *this, static void pic_irq_request(void *opaque, int level) { struct kvm *kvm = opaque; - struct kvm_vcpu *vcpu = kvm->vcpus[0]; + struct kvm_vcpu *vcpu = kvm->bsp_vcpu; struct kvm_pic *s = pic_irqchip(kvm); int irq = pic_get_irq(&s->pics[0]); diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 44f20cdb570..b0661300eb2 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -793,7 +793,8 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value) vcpu->arch.apic_base = value; return; } - if (apic->vcpu->vcpu_id) + + if (!kvm_vcpu_is_bsp(apic->vcpu)) value &= ~MSR_IA32_APICBASE_BSP; vcpu->arch.apic_base = value; @@ -844,7 +845,7 @@ void kvm_lapic_reset(struct kvm_vcpu *vcpu) } update_divide_count(apic); atomic_set(&apic->lapic_timer.pending, 0); - if (vcpu->vcpu_id == 0) + if (kvm_vcpu_is_bsp(vcpu)) vcpu->arch.apic_base |= MSR_IA32_APICBASE_BSP; apic_update_ppr(apic); @@ -985,7 +986,7 @@ int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu) u32 lvt0 = apic_get_reg(vcpu->arch.apic, APIC_LVT0); int r = 0; - if (vcpu->vcpu_id == 0) { + if (kvm_vcpu_is_bsp(vcpu)) { if (!apic_hw_enabled(vcpu->arch.apic)) r = 1; if ((lvt0 & APIC_LVT_MASKED) == 0 && diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 7749b0692cb..28b981409a8 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -642,7 +642,7 @@ static int svm_vcpu_reset(struct kvm_vcpu *vcpu) init_vmcb(svm); - if (vcpu->vcpu_id != 0) { + if (!kvm_vcpu_is_bsp(vcpu)) { kvm_rip_write(vcpu, 0); svm->vmcb->save.cs.base = svm->vcpu.arch.sipi_vector << 12; svm->vmcb->save.cs.selector = svm->vcpu.arch.sipi_vector << 8; @@ -706,7 +706,7 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) fx_init(&svm->vcpu); svm->vcpu.fpu_active = 1; svm->vcpu.arch.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; - if (svm->vcpu.vcpu_id == 0) + if (kvm_vcpu_is_bsp(&svm->vcpu)) svm->vcpu.arch.apic_base |= MSR_IA32_APICBASE_BSP; return &svm->vcpu; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ae682929a64..c08bb4cf372 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2411,7 +2411,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val(); kvm_set_cr8(&vmx->vcpu, 0); msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; - if (vmx->vcpu.vcpu_id == 0) + if (kvm_vcpu_is_bsp(&vmx->vcpu)) msr |= MSR_IA32_APICBASE_BSP; kvm_set_apic_base(&vmx->vcpu, msr); @@ -2422,7 +2422,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) * GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode * insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4. Sigh. */ - if (vmx->vcpu.vcpu_id == 0) { + if (kvm_vcpu_is_bsp(&vmx->vcpu)) { vmcs_write16(GUEST_CS_SELECTOR, 0xf000); vmcs_writel(GUEST_CS_BASE, 0x000f0000); } else { @@ -2451,7 +2451,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) vmcs_writel(GUEST_SYSENTER_EIP, 0); vmcs_writel(GUEST_RFLAGS, 0x02); - if (vmx->vcpu.vcpu_id == 0) + if (kvm_vcpu_is_bsp(&vmx->vcpu)) kvm_rip_write(vcpu, 0xfff0); else kvm_rip_write(vcpu, 0); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e877efa3762..d8adc1da76d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4330,7 +4330,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, kvm_set_segment(vcpu, &sregs->ldt, VCPU_SREG_LDTR); /* Older userspace won't unhalt the vcpu on reset. */ - if (vcpu->vcpu_id == 0 && kvm_rip_read(vcpu) == 0xfff0 && + if (kvm_vcpu_is_bsp(vcpu) && kvm_rip_read(vcpu) == 0xfff0 && sregs->cs.selector == 0xf000 && sregs->cs.base == 0xffff0000 && !(vcpu->arch.cr0 & X86_CR0_PE)) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; @@ -4601,7 +4601,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) kvm = vcpu->kvm; vcpu->arch.mmu.root_hpa = INVALID_PAGE; - if (!irqchip_in_kernel(kvm) || vcpu->vcpu_id == 0) + if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu)) vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; else vcpu->arch.mp_state = KVM_MP_STATE_UNINITIALIZED; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index a29ea030dd8..a5bd429e9bd 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -131,6 +131,7 @@ struct kvm { int nmemslots; struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS]; + struct kvm_vcpu *bsp_vcpu; struct kvm_vcpu *vcpus[KVM_MAX_VCPUS]; struct list_head vm_list; struct mutex lock; @@ -549,4 +550,8 @@ static inline void kvm_irqfd_release(struct kvm *kvm) {} #endif /* CONFIG_HAVE_KVM_EVENTFD */ +static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu) +{ + return vcpu->kvm->bsp_vcpu == vcpu; +} #endif diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 2a566717399..0532fa68f5d 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -164,7 +164,9 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq) /* Always delivery PIT interrupt to vcpu 0 */ if (irq == 0) { irqe.dest_mode = 0; /* Physical mode. */ - irqe.dest_id = ioapic->kvm->vcpus[0]->vcpu_id; + /* need to read apic_id from apic regiest since + * it can be rewritten */ + irqe.dest_id = ioapic->kvm->bsp_vcpu->vcpu_id; } #endif return kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 0d481b28244..0d54edecbc7 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1747,6 +1747,8 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n) goto vcpu_destroy; } kvm->vcpus[n] = vcpu; + if (n == 0) + kvm->bsp_vcpu = vcpu; mutex_unlock(&kvm->lock); /* Now it's all set up, let userspace reach it */ |