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The Platform Security Processor (PSP) is part of the AMD Secure Processor (AMD-SP) functionality. The PSP is a dedicated processor that provides support for key management commands in Secure Encrypted Virtualization (SEV) mode, along with software-based Trusted Execution Environment (TEE) to enable third-party trusted applications. Note that the key management functionality provided by the SEV firmware can be used outside of the kvm-amd driver hence it doesn't need to depend on CONFIG_KVM_AMD. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: Borislav Petkov <bp@suse.de> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Gary Hook <gary.hook@amd.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: linux-crypto@vger.kernel.org Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Improvements-by: Borislav Petkov <bp@suse.de> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Borislav Petkov <bp@suse.de>
47 lines
1.5 KiB
Plaintext
47 lines
1.5 KiB
Plaintext
config CRYPTO_DEV_CCP_DD
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tristate "Secure Processor device driver"
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depends on CPU_SUP_AMD || ARM64
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default m
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help
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Provides AMD Secure Processor device driver.
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If you choose 'M' here, this module will be called ccp.
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config CRYPTO_DEV_SP_CCP
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bool "Cryptographic Coprocessor device"
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default y
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depends on CRYPTO_DEV_CCP_DD
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select HW_RANDOM
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select DMA_ENGINE
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select DMADEVICES
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select CRYPTO_SHA1
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select CRYPTO_SHA256
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help
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Provides the support for AMD Cryptographic Coprocessor (CCP) device
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which can be used to offload encryption operations such as SHA, AES
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and more.
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config CRYPTO_DEV_CCP_CRYPTO
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tristate "Encryption and hashing offload support"
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default m
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depends on CRYPTO_DEV_CCP_DD
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depends on CRYPTO_DEV_SP_CCP
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select CRYPTO_HASH
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select CRYPTO_BLKCIPHER
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select CRYPTO_AUTHENC
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select CRYPTO_RSA
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help
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Support for using the cryptographic API with the AMD Cryptographic
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Coprocessor. This module supports offload of SHA and AES algorithms.
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If you choose 'M' here, this module will be called ccp_crypto.
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config CRYPTO_DEV_SP_PSP
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bool "Platform Security Processor (PSP) device"
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default y
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depends on CRYPTO_DEV_CCP_DD && X86_64
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help
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Provide support for the AMD Platform Security Processor (PSP).
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The PSP is a dedicated processor that provides support for key
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management commands in Secure Encrypted Virtualization (SEV) mode,
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along with software-based Trusted Execution Environment (TEE) to
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enable third-party trusted applications.
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