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(parent: 045a282) | patch
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)
commit89efbed02cfd7e9ce3324de0b44a70ee1c716fac
tree52e8a8121405ef85d4a8da53b9888a8de9419968tree | snapshot (tar.gz zip)
parent045a282ca41505184e8fc805335d1f5aae0c8a03commit | diff
KVM: VMX: make rmode_segment_valid() more strict.

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>
arch/x86/kvm/vmx.c diff | blob | blame | history