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| author | Marc Zyngier <marc.zyngier@arm.com> | 2013-01-23 13:21:59 -0500 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2013-02-11 19:05:38 +0000 |
| commit | c7e3ba64ba16eddfbfc66ec099860f40e808e124 (patch) | |
| tree | 42050cb8efe5233629efaabc3917bad4a22741c8 /arch/arm/kvm/arm.c | |
| parent | 53e724067a4ee9373972079e225d0d5f683b9c5a (diff) | |
| download | op-kernel-dev-c7e3ba64ba16eddfbfc66ec099860f40e808e124.zip op-kernel-dev-c7e3ba64ba16eddfbfc66ec099860f40e808e124.tar.gz | |
ARM: KVM: arch_timers: Add timer world switch
Do the necessary save/restore dance for the timers in the world
switch code. In the process, allow the guest to read the physical
counter, which is useful for its own clock_event_device.
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/kvm/arm.c')
| -rw-r--r-- | arch/arm/kvm/arm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index ea73832..800b2cd 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -718,6 +718,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) vcpu_pause(vcpu); kvm_vgic_flush_hwstate(vcpu); + kvm_timer_flush_hwstate(vcpu); local_irq_disable(); @@ -731,6 +732,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) if (ret <= 0 || need_new_vmid_gen(vcpu->kvm)) { local_irq_enable(); + kvm_timer_sync_hwstate(vcpu); kvm_vgic_sync_hwstate(vcpu); continue; } @@ -764,6 +766,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) * Back from guest *************************************************************/ + kvm_timer_sync_hwstate(vcpu); kvm_vgic_sync_hwstate(vcpu); ret = handle_exit(vcpu, run, ret); |
