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KVM: VMX: make rmode_segment_valid() more strict.
authorGleb Natapov <gleb@redhat.com>
Thu, 20 Dec 2012 14:57:44 +0000 (16:57 +0200)
committerMarcelo Tosatti <mtosatti@redhat.com>
Wed, 2 Jan 2013 21:36:28 +0000 (19:36 -0200)
Currently it allows entering vm86 mode if segment limit is greater than
0xffff and db bit is set. Both of those can cause incorrect execution of
instruction by cpu since in vm86 mode limit will be set to 0xffff and db
will be forced to 0.

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

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