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(parent: 64f638c) | patch
KVM: VMX: Disallow NMI while blocked by STI
authorAvi Kivity <avi@redhat.com>
Mon, 1 Nov 2010 21:20:48 +0000 (23:20 +0200)
committerAvi Kivity <avi@redhat.com>
Wed, 12 Jan 2011 09:29:04 +0000 (11:29 +0200)
commit30bd0c4c6c5aecc338ebf32e3a6e01c98f0a0b43
treeddac5485f0a57d25096ee94126d74fc10d3fe85atree | snapshot
parent64f638c7c44fa87e65f51eaf0f8302b9cba2d696commit | diff
KVM: VMX: Disallow NMI while blocked by STI

While not mandated by the spec, Linux relies on NMI being blocked by an
IF-enabling STI.  VMX also refuses to enter a guest in this state, at
least on some implementations.

Disallow NMI while blocked by STI by checking for the condition, and
requesting an interrupt window exit if it occurs.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
arch/x86/kvm/vmx.c diff | blob | history
Beck SC1x5 Kernel