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| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-04-01 16:12:31 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2022-04-01 16:12:31 +0100 |
| commit | de4fb176622d54a82ea3ceb7362392aaf5ff0b5a (patch) | |
| tree | 8b510763d14d89b97cd719e79834c84e095932d7 /include/linux/cc_platform.h | |
| parent | 9be4c88bb7924f68f88cfd47d925c2d046f51a73 (diff) | |
| parent | 9c6d6652e950fb34295f446676a811f6df5b8561 (diff) | |
Merge branches 'fixes' and 'misc' into for-linus
Diffstat (limited to 'include/linux/cc_platform.h')
| -rw-r--r-- | include/linux/cc_platform.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h index a075b70b9a70..efd8205282da 100644 --- a/include/linux/cc_platform.h +++ b/include/linux/cc_platform.h @@ -61,6 +61,17 @@ enum cc_attr { * Examples include SEV-ES. */ CC_ATTR_GUEST_STATE_ENCRYPT, + + /** + * @CC_ATTR_GUEST_UNROLL_STRING_IO: String I/O is implemented with + * IN/OUT instructions + * + * The platform/OS is running as a guest/virtual machine and uses + * IN/OUT instructions in place of string I/O. + * + * Examples include TDX guest & SEV. + */ + CC_ATTR_GUEST_UNROLL_STRING_IO, }; #ifdef CONFIG_ARCH_HAS_CC_PLATFORM |