From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
To: <pbonzini@redhat.com>, <rkrcmar@redhat.com>, <joro@8bytes.org>,
        <bp@alien8.de>, <gleb@kernel.org>, <alex.williamson@redhat.com>
CC: <kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <wei@redhat.com>,
        <sherry.hurwitz@amd.com>,
        Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>,
        Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: [PART1 RFC v3 03/12] KVM: x86: Introducing kvm_x86_ops VCPU blocking/unblocking hooks
Date: Fri, 18 Mar 2016 01:09:39 -0500
Message-ID: <1458281388-14452-4-git-send-email-Suravee.Suthikulpanit@amd.com>
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Adding new function pointer in struct kvm_x86_ops, and calling them
from the kvm_arch_vcpu[blocking/unblocking].

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
 arch/x86/include/asm/kvm_host.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 4b0dd0f..87eac2a 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -972,6 +972,10 @@ struct kvm_x86_ops {
 	 */
 	int (*pre_block)(struct kvm_vcpu *vcpu);
 	void (*post_block)(struct kvm_vcpu *vcpu);
+
+	void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
+	void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
+
 	int (*update_pi_irte)(struct kvm *kvm, unsigned int host_irq,
 			      uint32_t guest_irq, bool set);
 };
@@ -1323,7 +1327,16 @@ bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
 void kvm_set_msi_irq(struct kvm_kernel_irq_routing_entry *e,
 		     struct kvm_lapic_irq *irq);
 
-static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
-static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
+static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
+{
+	if (kvm_x86_ops->vcpu_blocking)
+		kvm_x86_ops->vcpu_blocking(vcpu);
+}
+
+static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
+{
+	if (kvm_x86_ops->vcpu_unblocking)
+		kvm_x86_ops->vcpu_unblocking(vcpu);
+}
 
 #endif /* _ASM_X86_KVM_HOST_H */
-- 
1.9.1