"Suthikulpanit, Suravee" <Suravee.Suthikulpanit@xxxxxxx> writes:
> Generally, APICv for all vcpus in the VM are enable/disable in the same
> manner. So, get_enable_apicv() should represent APICv status of the VM
> instead of each VCPU.
>
> Modify kvm_x86_ops.get_enable_apicv() to take struct kvm as parameter
> instead of struct kvm_vcpu.
>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
> ---
> arch/x86/include/asm/kvm_host.h | 2 +-
> arch/x86/kvm/svm.c | 5 +++--
> arch/x86/kvm/vmx/vmx.c | 2 +-
> arch/x86/kvm/x86.c | 2 +-
> 4 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 26d1eb8..56bc702 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1077,7 +1077,7 @@ struct kvm_x86_ops {
> void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
> void (*enable_irq_window)(struct kvm_vcpu *vcpu);
> void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
> - bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
> + bool (*get_enable_apicv)(struct kvm *kvm);
> void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
> void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
> void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index ccd5aa6..6851bce 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -384,6 +384,7 @@ struct amd_svm_iommu_ir {
> static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
> static void svm_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa);
> static void svm_complete_interrupts(struct vcpu_svm *svm);
> +static bool svm_get_enable_apicv(struct kvm *kvm);
Why is this forward declaration needed [in this patch]?
>
> static int nested_svm_exit_handled(struct vcpu_svm *svm);
> static int nested_svm_intercept(struct vcpu_svm *svm);
> @@ -5124,9 +5125,9 @@ static void svm_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
> return;
> }
>
> -static bool svm_get_enable_apicv(struct kvm_vcpu *vcpu)
> +static bool svm_get_enable_apicv(struct kvm *kvm)
> {
> - return avic && irqchip_split(vcpu->kvm);
> + return avic && irqchip_split(kvm);
> }
>
> static void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr)
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index d98eac3..18a4b94 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -3610,7 +3610,7 @@ void pt_update_intercept_for_msr(struct vcpu_vmx *vmx)
> }
> }
>
> -static bool vmx_get_enable_apicv(struct kvm_vcpu *vcpu)
> +static bool vmx_get_enable_apicv(struct kvm *kvm)
> {
> return enable_apicv;
> }
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index fafd81d..7daf0dd 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -9150,7 +9150,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
> goto fail_free_pio_data;
>
> if (irqchip_in_kernel(vcpu->kvm)) {
> - vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv(vcpu);
> + vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv(vcpu->kvm);
> r = kvm_create_lapic(vcpu, lapic_timer_advance_ns);
> if (r < 0)
> goto fail_mmu_destroy;
With the above question answered (or declaration moved to the patch
where it's actually needed)
Reviewed-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
--
Vitaly
