vmm: Correctly suspend and resume the vmm driver. #1419
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Previously, VMXON would be executed on a resume, contrary to proper initalization. The MSR lock may be lost on suspension, therefore must be taken again. Likewise, the VMX Enable bit may be cleared upon suspend, requiring to be re-set. Concretely disable VMX on suspend, and re-enable it on resume. Note: any IOMMU context will remain lost for any enabled vmm devices. Signed-off-by: Joshua Rogers <[email protected]>
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Previously, VMXON would be executed on a resume, contrary to proper initalization. The MSR lock may be lost on suspension, therefore must be taken again. Likewise, the VMX Enable bit may be cleared upon suspend, requiring to be re-set.
Concretely disable VMX on suspend, and re-enable it on resume.
Note: any IOMMU context will remain lost for any enabled vmm devices.