lkml.org 
[lkml]   [2017]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] KVM: VMX: add encapsulation kvm_vcpu_pi_need_handle
Date
use kvm_vcpu_pi_need_handle encapsulation simply coede

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
arch/x86/kvm/vmx.c | 27 ++++++++++++---------------
1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4253ade..26b99f4 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -559,6 +559,13 @@ static inline int pi_test_sn(struct pi_desc *pi_desc)
(unsigned long *)&pi_desc->control);
}

+static inline bool kvm_vcpu_pi_need_handle(struct kvm_vcpu *vcpu)
+{
+ return kvm_arch_has_assigned_device(vcpu->kvm) &&
+ irq_remapping_cap(IRQ_POSTING_CAP) &&
+ kvm_vcpu_apicv_active(vcpu);
+}
+
struct vcpu_vmx {
struct kvm_vcpu vcpu;
unsigned long host_rsp;
@@ -2202,9 +2209,7 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
struct pi_desc old, new;
unsigned int dest;

- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ if (!kvm_vcpu_pi_need_handle(vcpu))
return;

do {
@@ -2323,9 +2328,7 @@ static void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu)
{
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);

- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ if (!kvm_vcpu_pi_need_handle(vcpu))
return;

/* Set SN when the vCPU is preempted */
@@ -11691,9 +11694,7 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
struct pi_desc old, new;
struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);

- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ if (!kvm_vcpu_pi_need_handle(vcpu))
return 0;

vcpu->pre_pcpu = vcpu->cpu;
@@ -11769,9 +11770,7 @@ static void pi_post_block(struct kvm_vcpu *vcpu)
unsigned int dest;
unsigned long flags;

- if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(vcpu))
+ if (!kvm_vcpu_pi_need_handle(vcpu))
return;

do {
@@ -11831,9 +11830,7 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
struct vcpu_data vcpu_info;
int idx, ret = -EINVAL;

- if (!kvm_arch_has_assigned_device(kvm) ||
- !irq_remapping_cap(IRQ_POSTING_CAP) ||
- !kvm_vcpu_apicv_active(kvm->vcpus[0]))
+ if (!kvm_vcpu_pi_need_handle(kvm->vcpus[0]))
return 0;

idx = srcu_read_lock(&kvm->irq_srcu);
--
1.8.3.1
\
 
 \ /
  Last update: 2017-09-21 19:28    [W:0.131 / U:4.232 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site