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    Subject[PART1 RFC v3 03/12] KVM: x86: Introducing kvm_x86_ops VCPU blocking/unblocking hooks
    Date
    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
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