Commit 19bcc89e authored by Sean Christopherson's avatar Sean Christopherson Committed by Paolo Bonzini
Browse files

KVM: arm64: Free sve_state via arm specific hook 



Add an arm specific hook to free the arm64-only sve_state.  Doing so
eliminates the last functional code from kvm_arch_vcpu_uninit() across
all architectures and paves the way for removing kvm_arch_vcpu_init()
and kvm_arch_vcpu_uninit() entirely.

Signed-off-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 74ce2e60

arch/arm/include/asm/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -366,6 +366,7 @@ static inline void kvm_arch_sync_events(struct kvm *kvm) {} 
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_block_finish(struct kvm_vcpu *vcpu) {}

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



static inline void kvm_arm_init_debug(void) {}

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

arch/arm64/include/asm/kvm_host.h

+1 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ int kvm_arm_init_sve(void); 


int __attribute_const__ kvm_target_cpu(void);

int kvm_reset_vcpu(struct kvm_vcpu *vcpu);

void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu);

void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);

int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext);

void __extended_idmap_trampoline(phys_addr_t boot_pgd, phys_addr_t idmap_start);

arch/arm64/kvm/reset.c

+5 −0
Original line number Diff line number Diff line
@@ -205,6 +205,11 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu) 
}



void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)

{



}



void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu)

{

	kfree(vcpu->arch.sve_state);

}

virt/kvm/arm/arm.c

+2 −0
Original line number Diff line number Diff line
@@ -326,6 +326,8 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) 
	kvm_mmu_free_memory_caches(vcpu);

	kvm_timer_vcpu_terminate(vcpu);

	kvm_pmu_vcpu_destroy(vcpu);



	kvm_arm_vcpu_destroy(vcpu);

}



int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)