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KVM: inject #UD if instruction emulation fails and exit to userspace
authorGleb Natapov <gleb@redhat.com>
Mon, 10 May 2010 08:16:56 +0000 (11:16 +0300)
committerAvi Kivity <avi@redhat.com>
Sun, 1 Aug 2010 07:35:40 +0000 (10:35 +0300)
Do not kill VM when instruction emulation fails. Inject #UD and report
failure to userspace instead. Userspace may choose to reenter guest if
vcpu is in userspace (cpl == 3) in which case guest OS will kill
offending process and continue running.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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