[Xen-devel] [RFC PATCH 9/9] x86/SVM: Hook up miscellaneous AVIC functions

[Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>]

Hook up virtual_intr_delivery_enabled and deliver_posted_intr functions
when AVIC is enabled.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
---
 xen/arch/x86/hvm/svm/svm.c         | 10 ++++++++++
 xen/include/asm-x86/hvm/svm/avic.h |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
index caf9984..a9c09a7 100644
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -1495,6 +1495,16 @@ const struct hvm_function_table * __init start_svm(void)
     svm_function_table.hap_capabilities = HVM_HAP_SUPERPAGE_2MB |
         ((cpuid_edx(0x80000001) & 0x04000000) ? HVM_HAP_SUPERPAGE_1GB : 0);
 
+    if ( !cpu_has_svm_avic )
+        svm_avic = 0;
+
+    if ( svm_avic )
+    {
+        svm_function_table.deliver_posted_intr  = svm_avic_deliver_posted_intr,
+        svm_function_table.virtual_intr_delivery_enabled = svm_avic_enabled,
+        printk("SVM: AVIC enabled\n");
+    }
+
     return &svm_function_table;
 }
 
diff --git a/xen/include/asm-x86/hvm/svm/avic.h 
b/xen/include/asm-x86/hvm/svm/avic.h
index e1eb66c..8411854 100644
--- a/xen/include/asm-x86/hvm/svm/avic.h
+++ b/xen/include/asm-x86/hvm/svm/avic.h
@@ -41,4 +41,9 @@ void svm_avic_vmexit_do_incomp_ipi(struct cpu_user_regs 
*regs);
 void svm_avic_vmexit_do_noaccel(struct cpu_user_regs *regs);
 
 void svm_avic_deliver_posted_intr(struct vcpu *v, u8 vector);
+
+static inline int svm_avic_enabled(void)
+{
+    return svm_avic;
+}
 #endif /* _SVM_AVIC_H_ */
-- 
1.9.1


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