include/linux/cc_platform.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
17  * enum cc_attr - Confidential computing attributes
20  * currently active.
24 	 * @CC_ATTR_MEM_ENCRYPT: Memory encryption is active
26 	 * The platform/OS is running with active memory encryption. This
27 	 * includes running either as a bare-metal system or a hypervisor
31 	 * Examples include SME, SEV and SEV-ES.
36 	 * @CC_ATTR_HOST_MEM_ENCRYPT: Host memory encryption is active
38 	 * The platform/OS is running as a bare-metal system or a hypervisor
46 	 * @CC_ATTR_GUEST_MEM_ENCRYPT: Guest memory encryption is active
51 	 * Examples include SEV and SEV-ES.
56 	 * @CC_ATTR_GUEST_STATE_ENCRYPT: Guest state encryption is active
61 	 * Examples include SEV-ES.
77 	 * @CC_ATTR_SEV_SNP: Guest SNP is active.
80 	 * using AMD SEV-SNP features.
85 	 * @CC_ATTR_GUEST_SNP_SECURE_TSC: SNP Secure TSC is active.
88 	 * using AMD SEV-SNP Secure TSC feature.
96 	 * enabled to run SEV-SNP guests.
104  * cc_platform_has() - Checks if the specified cc_attr attribute is active
108  * specified Confidential Computing attribute is currently active.
112  * * TRUE  - Specified Confidential Computing attribute is active
113  * * FALSE - Specified Confidential Computing attribute is not active