Define a interface to get PI descriptor address from the vCPU structure.
Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/vmx.c | 12 ++++++++++++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 7a41808..9b45b78 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -772,6 +772,7 @@ struct kvm_x86_ops {
int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
+ u64 (*get_pi_desc_addr)(struct kvm_vcpu *vcpu);
};
struct kvm_arch_async_pf {
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 66ca275..81f239b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -562,6 +562,11 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
return container_of(vcpu, struct vcpu_vmx, vcpu);
}
+struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu)
+{
+ return &(to_vmx(vcpu)->pi_desc);
+}
+
#define VMCS12_OFFSET(x) offsetof(struct vmcs12, x)
#define FIELD(number, name) [number] = VMCS12_OFFSET(name)
#define FIELD64(number, name) [number] = VMCS12_OFFSET(name), \
@@ -4298,6 +4303,11 @@ static void vmx_sync_pir_to_irr_dummy(struct kvm_vcpu *vcpu)
return;
}
+static u64 vmx_get_pi_desc_addr(struct kvm_vcpu *vcpu)
+{
+ return __pa((u64)vcpu_to_pi_desc(vcpu));
+}
+
/*
* Set up the vmcs's constant host-state fields, i.e., host-state fields that
* will not change in the lifetime of the guest.
@@ -9244,6 +9254,8 @@ static struct kvm_x86_ops vmx_x86_ops = {
.check_nested_events = vmx_check_nested_events,
.sched_in = vmx_sched_in,
+
+ .get_pi_desc_addr = vmx_get_pi_desc_addr,
};
static int __init vmx_init(void)
--
1.7.1
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