[Xen-devel] [PATCH v2 09/10] 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>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Jan Beulich <JBeulich@xxxxxxxx>
Cc: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
---
 xen/arch/x86/hvm/svm/svm.c         | 26 +++++++++++++++++++++-----
 xen/include/asm-x86/hvm/svm/avic.h |  3 +++
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
index 922f48f..7c0cda0 100644
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -1438,6 +1438,11 @@ static int svm_cpu_up(void)
     return 0;
 }
 
+static inline int svm_avic_enabled(void)
+{
+    return svm_avic;
+}
+
 const struct hvm_function_table * __init start_svm(void)
 {
     bool_t printed = 0;
@@ -1472,16 +1477,27 @@ const struct hvm_function_table * __init start_svm(void)
     P(cpu_has_svm_decode, "DecodeAssists");
     P(cpu_has_pause_filter, "Pause-Intercept Filter");
     P(cpu_has_tsc_ratio, "TSC Rate MSR");
-    P(cpu_has_svm_avic, "AVIC");
-#undef P
-
-    if ( !printed )
-        printk(" - none\n");
 
     svm_function_table.hap_supported = !!cpu_has_svm_npt;
     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;
+        P(cpu_has_svm_avic, "AVIC (enabled)");
+    }
+    else
+        P(cpu_has_svm_avic, "AVIC (disabled)");
+#undef P
+
+    if ( !printed )
+        printk(" - none\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 1676e01..5be3e76 100644
--- a/xen/include/asm-x86/hvm/svm/avic.h
+++ b/xen/include/asm-x86/hvm/svm/avic.h
@@ -41,4 +41,7 @@ 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);
+
+void setup_avic_dump(void);
+
 #endif /* _SVM_AVIC_H_ */
-- 
1.9.1


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