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Commit 3217f7c2 authored by Christoffer Dall's avatar Christoffer Dall
Browse files

KVM: Add kvm_arch_vcpu_{un}blocking callbacks 



Some times it is useful for architecture implementations of KVM to know
when the VCPU thread is about to block or when it comes back from
blocking (arm/arm64 needs to know this to properly implement timers, for
example).

Therefore provide a generic architecture callback function in line with
what we do elsewhere for KVM generic-arch interactions.

Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent 0d997491

arch/arm/include/asm/kvm_host.h

+3 −0
Original line number Diff line number Diff line
@@ -234,4 +234,7 @@ static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {} 
static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {}

static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {}



static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}



#endif /* __ARM_KVM_HOST_H__ */

arch/arm64/include/asm/kvm_host.h

+3 −0
Original line number Diff line number Diff line
@@ -255,4 +255,7 @@ void kvm_arm_setup_debug(struct kvm_vcpu *vcpu); 
void kvm_arm_clear_debug(struct kvm_vcpu *vcpu);

void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu);



static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}



#endif /* __ARM64_KVM_HOST_H__ */

arch/mips/include/asm/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -847,5 +847,7 @@ static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, 
		struct kvm_memory_slot *slot) {}

static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}

static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}



#endif /* __MIPS_KVM_HOST_H__ */

arch/powerpc/include/asm/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -718,5 +718,7 @@ static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslot 
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}

static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}

static inline void kvm_arch_exit(void) {}

static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}



#endif /* __POWERPC_KVM_HOST_H__ */

arch/s390/include/asm/kvm_host.h

+2 −0
Original line number Diff line number Diff line
@@ -644,5 +644,7 @@ static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslot 
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}

static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

		struct kvm_memory_slot *slot) {}

static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}



#endif