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Commit 61bde82c authored by Christian Borntraeger's avatar Christian Borntraeger Committed by Marcelo Tosatti
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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: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 00763e41

arch/s390/kvm/kvm-s390.c

+1 −0
Original line number Diff line number Diff line
@@ -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)