cuttlefish::TpmResourceManager Class Reference

#include <tpm_resource_manager.h>

Classes
class	ObjectSlot

Public Member Functions
	TpmResourceManager (ESYS_CONTEXT *esys)
	~TpmResourceManager ()
EsysLock	Esys ()
std::shared_ptr< ObjectSlot >	ReserveSlot ()

Private Attributes
std::mutex	mu_
ESYS_CONTEXT *	esys_
const std::uint32_t	maximum_object_slots_
std::atomic< std::uint32_t >	used_slots_

Detailed Description

Object slot manager for TPM memory. The TPM can only hold a fixed number of objects at once. Some TPM operations are defined to consume slots either temporarily or until the resource is explicitly unloaded.

This implementation is intended for future extension, to track what objects are resident if we run out of space, or implement optimizations like LRU caching to avoid re-loading often-used resources.

Constructor & Destructor Documentation

TpmResourceManager()

cuttlefish::TpmResourceManager::TpmResourceManager

(

ESYS_CONTEXT *

esys

)

~TpmResourceManager()

cuttlefish::TpmResourceManager::~TpmResourceManager

(

)

Member Function Documentation

Esys()

EsysLock cuttlefish::TpmResourceManager::Esys

(

)

ReserveSlot()

TpmObjectSlot cuttlefish::TpmResourceManager::ReserveSlot

(

)

Member Data Documentation

esys_

ESYS_CONTEXT* cuttlefish::TpmResourceManager::esys_

private

maximum_object_slots_

const std::uint32_t cuttlefish::TpmResourceManager::maximum_object_slots_

private

mu_

std::mutex cuttlefish::TpmResourceManager::mu_

private

used_slots_

std::atomic<std::uint32_t> cuttlefish::TpmResourceManager::used_slots_

private

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The documentation for this class was generated from the following files:

• cuttlefish/host/commands/secure_env/tpm_resource_manager.h
• cuttlefish/host/commands/secure_env/tpm_resource_manager.cpp