Define an interface to get PI descriptor address from the vCPU structure.
Signed-off-by: Feng Wu <feng...@intel.com>
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/vmx.c | 11 +++++++++++
2 files changed, 13 insertions(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index af11bca..d50c1d3 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -858,6 +858,8 @@ struct kvm_x86_ops {
void (*enable_log_dirty_pt_masked)(struct kvm *kvm,
struct kvm_memory_slot *slot,
gfn_t offset, unsigned long mask);
+
+ u64 (*get_pi_desc_addr)(struct kvm_vcpu *vcpu);
/* pmu operations of sub-arch */
const struct kvm_pmu_ops *pmu_ops;
};
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 316f9bf..81a995c 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -610,6 +610,10 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu
*vcpu)
#define FIELD64(number, name) [number] = VMCS12_OFFSET(name), \
[number##_HIGH] = VMCS12_OFFSET(name)+4
+struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu)
+{
+ return &(to_vmx(vcpu)->pi_desc);
+}
static unsigned long shadow_read_only_fields[] = {
/*
@@ -4487,6 +4491,11 @@ 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.
@@ -10460,6 +10469,8 @@ static struct kvm_x86_ops vmx_x86_ops = {
.flush_log_dirty = vmx_flush_log_dirty,
.enable_log_dirty_pt_masked = vmx_enable_log_dirty_pt_masked,
+ .get_pi_desc_addr = vmx_get_pi_desc_addr,
+
.pmu_ops = &intel_pmu_ops,
};
--
2.1.0
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