KVM: s390: Fix problem state check for b2 intercepts

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The kernel handles some priviledged instruction exits. While I was
unable to trigger such an exit from guest userspace, the code should
check for supervisor state before emulating a priviledged instruction.

I also renamed kvm_s390_handle_priv to kvm_s390_handle_b2. After all
there are non priviledged b2 instructions like stck (store clock).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

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Christian Borntraeger 2009-01-22 10:28:29 +01:00 • committed by Avi Kivity

parent 2c411b48af

commit 70455a36a0

3 changed files with 17 additions and 5 deletions

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2

arch/s390/kvm/intercept.c

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2

arch/s390/kvm/kvm-s390.h

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18

arch/s390/kvm/priv.c

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