diff options
Diffstat (limited to 'include/linux/cc_platform.h')
| -rw-r--r-- | include/linux/cc_platform.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h index efd8205282da..559353ad64ac 100644 --- a/include/linux/cc_platform.h +++ b/include/linux/cc_platform.h @@ -72,6 +72,38 @@ enum cc_attr { * Examples include TDX guest & SEV. */ CC_ATTR_GUEST_UNROLL_STRING_IO, + + /** + * @CC_ATTR_GUEST_SEV_SNP: Guest SNP is active. + * + * The platform/OS is running as a guest/virtual machine and actively + * using AMD SEV-SNP features. + */ + CC_ATTR_GUEST_SEV_SNP, + + /** + * @CC_ATTR_GUEST_SNP_SECURE_TSC: SNP Secure TSC is active. + * + * The platform/OS is running as a guest/virtual machine and actively + * using AMD SEV-SNP Secure TSC feature. + */ + CC_ATTR_GUEST_SNP_SECURE_TSC, + + /** + * @CC_ATTR_HOST_SEV_SNP: AMD SNP enabled on the host. + * + * The host kernel is running with the necessary features + * enabled to run SEV-SNP guests. + */ + CC_ATTR_HOST_SEV_SNP, + + /** + * @CC_ATTR_SNP_SECURE_AVIC: Secure AVIC mode is active. + * + * The host kernel is running with the necessary features enabled + * to run SEV-SNP guests with full Secure AVIC capabilities. + */ + CC_ATTR_SNP_SECURE_AVIC, }; #ifdef CONFIG_ARCH_HAS_CC_PLATFORM @@ -89,10 +121,14 @@ enum cc_attr { * * FALSE - Specified Confidential Computing attribute is not active */ bool cc_platform_has(enum cc_attr attr); +void cc_platform_set(enum cc_attr attr); +void cc_platform_clear(enum cc_attr attr); #else /* !CONFIG_ARCH_HAS_CC_PLATFORM */ static inline bool cc_platform_has(enum cc_attr attr) { return false; } +static inline void cc_platform_set(enum cc_attr attr) { } +static inline void cc_platform_clear(enum cc_attr attr) { } #endif /* CONFIG_ARCH_HAS_CC_PLATFORM */ |