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Groups > linux.kernel > #1212150

[PATCH 1/3] KVM: make halt_poll_ns per-VCPU

From Wanpeng Li <wanpeng.li@hotmail.com>
Newsgroups linux.kernel
Subject [PATCH 1/3] KVM: make halt_poll_ns per-VCPU
Date 2015-08-24 15:00 +0200
Message-ID <q0ZvZ-8a9-31@gated-at.bofh.it> (permalink)
References <q0ZvY-8a9-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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      | 1 +
 2 files changed, 2 insertions(+)

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..a122b52 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);
 
-- 
1.9.1

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[PATCH 1/3] KVM: make halt_poll_ns per-VCPU Wanpeng Li <wanpeng.li@hotmail.com> - 2015-08-24 15:00 +0200
  Re: [PATCH 1/3] KVM: make halt_poll_ns per-VCPU David Matlack <dmatlack@google.com> - 2015-08-24 19:00 +0200
    Re: [PATCH 1/3] KVM: make halt_poll_ns per-VCPU Wanpeng Li <wanpeng.li@hotmail.com> - 2015-08-25 00:40 +0200

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