KVM: s390: Fix external interrupt interception

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The external interrupt interception can only occur in rare cases, e.g.
when the PSW of the interrupt handler has a bad value. The old handler
for this interception simply ignored these events (except for increasing
the exit_external_interrupt counter), but for proper operation we either
have to inject the interrupts manually or we should drop to userspace in
case of errors.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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Thomas Huth 2014-01-15 16:46:07 +01:00 • committed by Christian Borntraeger

parent e029ae5b78

commit f14d82e06a

2 changed files with 49 additions and 5 deletions

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5

arch/s390/include/asm/kvm_host.h

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49

arch/s390/kvm/intercept.c

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