diff options
| author |   Sean Christopherson <seanjc@google.com> | 2021-03-02 09:45:14 -0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2021-03-15 04:43:15 -0400 |
| commit | cb6a32c2b8777ad31a02e585584d869251a790e3 (patch) | |
| tree | ae3bf1dec3a2219aa8068cc0aaf733fbe35c1736 /tools/perf/scripts/python/bin | |
| parent | KVM: SVM: Pass struct kvm_vcpu to exit handlers (and many, many other places) (diff) | |
KVM: x86: Handle triple fault in L2 without killing L1
Synthesize a nested VM-Exit if L2 triggers an emulated triple fault
instead of exiting to userspace, which likely will kill L1. Any flow
that does KVM_REQ_TRIPLE_FAULT is suspect, but the most common scenario
for L2 killing L1 is if L0 (KVM) intercepts a contributory exception that
is _not_intercepted by L1. E.g. if KVM is intercepting #GPs for the
VMware backdoor, a #GP that occurs in L2 while vectoring an injected #DF
will cause KVM to emulate triple fault.
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210302174515.2812275-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions