Commit fb5040ef authored by Tony Krowiak's avatar Tony Krowiak Committed by Heiko Carstens
Browse files

KVM: s390: export kvm_s390_pv*_is_protected functions 



Export the kvm_s390_pv_is_protected and kvm_s390_pv_cpu_is_protected
functions so that they can be called from other modules that carry a
GPL-compatible license.

Signed-off-by: default avatarJanosch Frank <frankja@linux.ibm.com>
Signed-off-by: default avatarTony Krowiak <akrowiak@linux.ibm.com>
Tested-by: default avatarViktor Mihajlovski <mihajlov@linux.ibm.com>
Link: https://lore.kernel.org/r/20230815184333.6554-12-akrowiak@linux.ibm.com


Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent cf3fa16a

arch/s390/include/asm/kvm_host.h

+3 −0
Original line number Diff line number Diff line
@@ -1028,6 +1028,9 @@ static inline int sie64a(struct kvm_s390_sie_block *sie_block, u64 *rsa) 


extern char sie_exit;



bool kvm_s390_pv_is_protected(struct kvm *kvm);

bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu);



extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc);

extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);

arch/s390/kvm/kvm-s390.h

+0 −12
Original line number Diff line number Diff line
@@ -270,18 +270,6 @@ static inline u64 kvm_s390_pv_cpu_get_handle(struct kvm_vcpu *vcpu) 
	return vcpu->arch.pv.handle;

}



static inline bool kvm_s390_pv_is_protected(struct kvm *kvm)

{

	lockdep_assert_held(&kvm->lock);

	return !!kvm_s390_pv_get_handle(kvm);

}



static inline bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu)

{

	lockdep_assert_held(&vcpu->mutex);

	return !!kvm_s390_pv_cpu_get_handle(vcpu);

}



/* implemented in interrupt.c */

int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);

void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu);

arch/s390/kvm/pv.c

+14 −0
Original line number Diff line number Diff line
@@ -18,6 +18,20 @@ 
#include <linux/mmu_notifier.h>

#include "kvm-s390.h"



bool kvm_s390_pv_is_protected(struct kvm *kvm)

{

	lockdep_assert_held(&kvm->lock);

	return !!kvm_s390_pv_get_handle(kvm);

}

EXPORT_SYMBOL_GPL(kvm_s390_pv_is_protected);



bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu)

{

	lockdep_assert_held(&vcpu->mutex);

	return !!kvm_s390_pv_cpu_get_handle(vcpu);

}

EXPORT_SYMBOL_GPL(kvm_s390_pv_cpu_is_protected);



/**

 * struct pv_vm_to_be_destroyed - Represents a protected VM that needs to

 * be destroyed