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stop_vm
2006 Sep 29
1
[PATCH] hvm: clear vmxe if vmxoff
hvm: clear vmxe if vmxoff
The current Xen code keeps X86_CR4_VMXE set even if VMXON has not been
executed. The stop_vmx() code assumes that it is possible to call VMXOFF
if X86_CR4_VMXE is set which is not always true. Calling VMXOFF without
VMXON results in an illegal opcode trap, and to avoid this condition this
patch makes sure that X86_CR4_VMXE is only set when VMXON has been called.
Tested using x86_32 on a...