Messages in this thread Patch in this message | | | From | Wanpeng Li <> | Subject | [PATCH v2 1/3] KVM: make halt_poll_ns per-VCPU | Date | Tue, 25 Aug 2015 14:35:17 +0800 |
| |
Change halt_poll_ns into per-VCPU variable, seeded from module parameter, to allow greater flexibility.
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 81089cf..1bef9e2 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -242,6 +242,7 @@ struct kvm_vcpu { int sigset_active; sigset_t sigset; struct kvm_vcpu_stat stat; + unsigned int halt_poll_ns; #ifdef CONFIG_HAS_IOMEM int mmio_needed; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d8db2f8f..93db833 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -217,6 +217,7 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id) vcpu->kvm = kvm; vcpu->vcpu_id = id; vcpu->pid = NULL; + vcpu->halt_poll_ns = halt_poll_ns; init_waitqueue_head(&vcpu->wq); kvm_async_pf_vcpu_init(vcpu); @@ -1930,8 +1931,8 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu) bool waited = false; start = cur = ktime_get(); - if (halt_poll_ns) { - ktime_t stop = ktime_add_ns(ktime_get(), halt_poll_ns); + if (vcpu->halt_poll_ns) { + ktime_t stop = ktime_add_ns(ktime_get(), vcpu->halt_poll_ns); do { /* -- 1.9.1
| |