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KVM: s390: remove diag318 reset code 

The diag318 data must be set to 0 by VM-wide reset events
triggered by diag308. As such, KVM should not handle
resetting this data via the VCPU ioctls.

Fixes: 23a60f8344 ("s390/kvm: diagnose 0x318 sync and reset")
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/r/20201104181032.109800-1-walling@linux.ibm.com
zero-sugar-mainline-defconfig
Collin Walling 2020-11-04 13:10:32 -05:00 committed by Christian Borntraeger
parent 1ed576a20c
commit 6cbf1e960f
1 changed files with 0 additions and 2 deletions
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2
arch/s390/kvm/kvm-s390.c
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@ -3564,7 +3564,6 @@ static void kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->pp = 0;
vcpu->arch.sie_block->fpf &= ~FPF_BPBC;
vcpu->arch.sie_block->todpr = 0;
vcpu->arch.sie_block->cpnc = 0;
}
}
@ -3582,7 +3581,6 @@ static void kvm_arch_vcpu_ioctl_clear_reset(struct kvm_vcpu *vcpu)
regs->etoken = 0;
regs->etoken_extension = 0;
regs->diag318 = 0;
}
int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)