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It turns out that the PCI driver for ccp is unconditionally built into the kernel in the CONFIG_PCI=y case. This means that the new SEV-TIO support needs an explicit dependency on PCI to avoid build errors when CONFIG_CRYPTO_DEV_SP_PSP=y and CONFIG_PCI=n. Reported-by: kernel test robot <lkp@intel.com> Closes: http://lore.kernel.org/202512030743.6pVPA4sx-lkp@intel.com Cc: Alexey Kardashevskiy <aik@amd.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: John Allen <john.allen@amd.com> Acked-by: Alexey Kardashevskiy <aik@amd.com> Link: https://patch.msgid.link/20251203031948.2471431-1-dan.j.williams@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
57 lines
1.8 KiB
Plaintext
57 lines
1.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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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 && DMADEVICES
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select HW_RANDOM
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select DMA_ENGINE
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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_SKCIPHER
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select CRYPTO_AUTHENC
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select CRYPTO_RSA
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select CRYPTO_LIB_AES
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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 && AMD_IOMMU
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select PCI_TSM if PCI
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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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config CRYPTO_DEV_CCP_DEBUGFS
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bool "Enable CCP Internals in DebugFS"
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default n
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depends on CRYPTO_DEV_SP_CCP
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help
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Expose CCP device information such as operation statistics, feature
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information, and descriptor queue contents.
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