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Commit ae97a3b8 authored by Radim Krčmář's avatar Radim Krčmář Committed by Paolo Bonzini
Browse files

KVM: x86: introduce sched_in to kvm_x86_ops 



sched_in preempt notifier is available for x86, allow its use in
specific virtualization technlogies as well.

Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent e790d9ef

arch/x86/include/asm/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -771,6 +771,8 @@ struct kvm_x86_ops { 
	bool (*mpx_supported)(void);



	int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);



	void (*sched_in)(struct kvm_vcpu *kvm, int cpu);

};



struct kvm_arch_async_pf {

arch/x86/kvm/svm.c

+6 −0
Original line number Diff line number Diff line
@@ -4305,6 +4305,10 @@ static void svm_handle_external_intr(struct kvm_vcpu *vcpu) 
	local_irq_enable();

}



static void svm_sched_in(struct kvm_vcpu *vcpu, int cpu)

{

}



static struct kvm_x86_ops svm_x86_ops = {

	.cpu_has_kvm_support = has_svm,

	.disabled_by_bios = is_disabled,
@@ -4405,6 +4409,8 @@ static struct kvm_x86_ops svm_x86_ops = { 


	.check_intercept = svm_check_intercept,

	.handle_external_intr = svm_handle_external_intr,



	.sched_in = svm_sched_in,

};



static int __init svm_init(void)

arch/x86/kvm/vmx.c

+6 −0
Original line number Diff line number Diff line
@@ -8848,6 +8848,10 @@ static int vmx_check_intercept(struct kvm_vcpu *vcpu, 
	return X86EMUL_CONTINUE;

}



void vmx_sched_in(struct kvm_vcpu *vcpu, int cpu)

{

}



static struct kvm_x86_ops vmx_x86_ops = {

	.cpu_has_kvm_support = cpu_has_kvm_support,

	.disabled_by_bios = vmx_disabled_by_bios,
@@ -8952,6 +8956,8 @@ static struct kvm_x86_ops vmx_x86_ops = { 
	.mpx_supported = vmx_mpx_supported,



	.check_nested_events = vmx_check_nested_events,



	.sched_in = vmx_sched_in,

};



static int __init vmx_init(void)

arch/x86/kvm/x86.c

+1 −0
Original line number Diff line number Diff line
@@ -7173,6 +7173,7 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) 


void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu)

{

	kvm_x86_ops->sched_in(vcpu, cpu);

}



int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)