[0/4] KVM: nSVM: more svm_check_nested_events work
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Message ID 20200516135311.704878-1-pbonzini@redhat.com
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  • KVM: nSVM: more svm_check_nested_events work
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Paolo Bonzini May 16, 2020, 1:53 p.m. UTC
This moves exception injection to svm_check_nested_events, which is very
pleasing: it cleans up the recently introduced #DB handling, removes
exit_required, and fixes #UD trapping in the guest (for example
from an RSM instruction, as tested in kvm-unit-tests).

As a bonus, the last patch adds INIT vmexit injection to
svm_check_nested_events as well.  Note that there is no test case for
that yet.

The patches have small conflicts with those I posted yesterday, so
they are on top of them.

Paolo

Paolo Bonzini (4):
  KVM: nSVM: fix condition for filtering async PF
  KVM: nSVM: inject exceptions via svm_check_nested_events
  KVM: nSVM: remove exit_required
  KVM: nSVM: correctly inject INIT vmexits

 arch/x86/kvm/svm/nested.c | 159 ++++++++++++++++++--------------------
 arch/x86/kvm/svm/svm.c    |  23 ------
 arch/x86/kvm/svm/svm.h    |   4 +-
 3 files changed, 75 insertions(+), 111 deletions(-)