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KVM: s390: Set CPU in stopped state on initial cpu reset 

The initial cpu reset sets the cpu in the stopped state.
Several places check for the cpu state (e.g. sigp set prefix) and
not setting the STOPPED state triggered errors with newer guest
kernels after reboot.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
hifive-unleashed-5.1
Christian Borntraeger 2012-06-11 16:06:57 +02:00 committed by Marcelo Tosatti
parent 00763e4113
commit 61bde82cae
1 changed files with 1 additions and 0 deletions
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arch/s390/kvm/kvm-s390.c
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@ -347,6 +347,7 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu)
vcpu->arch.guest_fpregs.fpc = 0;
asm volatile("lfpc %0" : : "Q" (vcpu->arch.guest_fpregs.fpc));
vcpu->arch.sie_block->gbea = 1;
atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags);
}
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)