diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2013-01-23 13:21:59 -0500 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2013-02-11 19:06:00 +0000 |
| commit | 967f84275ba74eac696f798ce1a780285170b5e7 (patch) | |
| tree | e8dfd11d9587c0faf1511765e84127ed50b6d6dc /arch/arm | |
| parent | c7e3ba64ba16eddfbfc66ec099860f40e808e124 (diff) | |
ARM: KVM: arch_timers: Wire the init code and config optionv3.9-kvm-arm
It is now possible to select CONFIG_KVM_ARM_TIMER to enable the
KVM architected timer support.
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kvm/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/kvm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/kvm/arm.c | 11 | ||||
| -rw-r--r-- | arch/arm/kvm/vgic.c | 1 |
4 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index d8126f2b9442..49dd64e579c2 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -59,6 +59,14 @@ config KVM_ARM_VGIC ---help--- Adds support for a hardware assisted, in-kernel GIC emulation. +config KVM_ARM_TIMER + bool "KVM support for Architected Timers" + depends on KVM_ARM_VGIC && ARM_ARCH_TIMER + select HAVE_KVM_IRQCHIP + default y + ---help--- + Adds support for the Architected Timers in virtual machines + source drivers/virtio/Kconfig endif # VIRTUALIZATION diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile index dece8edc2e4a..fc96ce6f2357 100644 --- a/arch/arm/kvm/Makefile +++ b/arch/arm/kvm/Makefile @@ -20,3 +20,4 @@ obj-y += kvm-arm.o init.o interrupts.o obj-y += arm.o guest.o mmu.o emulate.o reset.o obj-y += coproc.o coproc_a15.o mmio.o psci.o obj-$(CONFIG_KVM_ARM_VGIC) += vgic.o +obj-$(CONFIG_KVM_ARM_TIMER) += arch_timer.o diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 800b2cd804d3..9ada5549216d 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -289,6 +289,7 @@ int kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu) void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) { kvm_mmu_free_memory_caches(vcpu); + kvm_timer_vcpu_terminate(vcpu); kmem_cache_free(kvm_vcpu_cache, vcpu); } @@ -330,6 +331,9 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) if (ret) return ret; + /* Set up the timer */ + kvm_timer_vcpu_init(vcpu); + return 0; } @@ -1103,6 +1107,13 @@ static int init_hyp_mode(void) vgic_present = true; #endif + /* + * Init HYP architected timer support + */ + err = kvm_timer_hyp_init(); + if (err) + goto out_free_mappings; + kvm_info("Hyp mode initialized successfully\n"); return 0; out_free_vfp: diff --git a/arch/arm/kvm/vgic.c b/arch/arm/kvm/vgic.c index 6d8407672dec..c9a17316e9fe 100644 --- a/arch/arm/kvm/vgic.c +++ b/arch/arm/kvm/vgic.c @@ -1418,6 +1418,7 @@ int kvm_vgic_init(struct kvm *kvm) for (i = VGIC_NR_PRIVATE_IRQS; i < VGIC_NR_IRQS; i += 4) vgic_set_target_reg(kvm, 0, i); + kvm_timer_init(kvm); kvm->arch.vgic.ready = true; out: mutex_unlock(&kvm->lock); |