[PATCH v4 1/6] KVM: X86: Add kvm hypervisor init time platform setup callback

[Wanpeng Li]

From: Wanpeng Li <wanpen...@tencent.com>

Add kvm hypervisor init time platform setup callback which
will be used to replace native apic hooks by pararvirtual
hooks.

Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Radim Krčmář <rkrc...@redhat.com>
Cc: Vitaly Kuznetsov <vkuzn...@redhat.com>
Signed-off-by: Wanpeng Li <wanpen...@tencent.com>
---
 arch/x86/kernel/kvm.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 5b2300b..591bcf2 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -624,12 +624,22 @@ static uint32_t __init kvm_detect(void)
        return kvm_cpuid_base();
 }
 
+static void __init kvm_apic_init(void)
+{
+}
+
+static void __init kvm_init_platform(void)
+{
+       x86_platform.apic_post_init = kvm_apic_init;
+}
+
 const __initconst struct hypervisor_x86 x86_hyper_kvm = {
        .name                   = "KVM",
        .detect                 = kvm_detect,
        .type                   = X86_HYPER_KVM,
        .init.guest_late_init   = kvm_guest_init,
        .init.x2apic_available  = kvm_para_available,
+       .init.init_platform     = kvm_init_platform,
 };
 
 static __init int activate_jump_labels(void)
-- 
2.7.4