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KVM: s390: expose gbea register to userspace 

For migration/reset we want to expose the guest breaking event
address register to userspace. Lets use ONE_REG for that purpose.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
This commit is contained in:
Christian Borntraeger 2014-02-10 15:39:23 +01:00
parent 672550fb68
commit afa45ff521
2 changed files with 9 additions and 0 deletions
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1
arch/s390/include/uapi/asm/kvm.h
View File

@ -77,4 +77,5 @@ struct kvm_sync_regs {
#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
#endif

8
arch/s390/kvm/kvm-s390.c
View File

@ -576,6 +576,10 @@ static int kvm_arch_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu,
r = put_user(vcpu->arch.sie_block->pp,
(u64 __user *)reg->addr);
break;
case KVM_REG_S390_GBEA:
r = put_user(vcpu->arch.sie_block->gbea,
(u64 __user *)reg->addr);
break;
default:
break;
}
@ -621,6 +625,10 @@ static int kvm_arch_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu,
r = get_user(vcpu->arch.sie_block->pp,
(u64 __user *)reg->addr);
break;
case KVM_REG_S390_GBEA:
r = get_user(vcpu->arch.sie_block->gbea,
(u64 __user *)reg->addr);
break;
default:
break;
}