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authorAvi Kivity <avi@redhat.com>2009-09-01 12:03:25 +0300
committerAvi Kivity <avi@redhat.com>2009-09-10 18:11:10 +0300
commit0a79b009525b160081d75cef5dbf45817956acf2 (patch)
tree86dc2671cbd3326e92c8845ce699bdb651d785b5 /virt
parent4da748960a6bd7b1e123e01bfa8f2dbcb6be209e (diff)
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KVM: VMX: Check cpl before emulating debug register access
Debug registers may only be accessed from cpl 0. Unfortunately, vmx will code to emulate the instruction even though it was issued from guest userspace, possibly leading to an unexpected trap later. Cc: stable@kernel.org Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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