backends/tpm/Kconfig - third_party/qemu - Git at Google

 config TPM_BACKEND
     bool
     depends on TPM

 config TPM_PASSTHROUGH
     bool
     default y
     # FIXME: should check for x86 host as well
     depends on TPM_BACKEND && LINUX

 config TPM_EMULATOR
     bool
     default y
     depends on TPM_BACKEND
	config TPM_BACKEND
	bool
	depends on TPM

	config TPM_PASSTHROUGH
	bool
	default y
	# FIXME: should check for x86 host as well
	depends on TPM_BACKEND && LINUX

	config TPM_EMULATOR
	bool
	default y
	depends on TPM_BACKEND