On 04.10.2025 00:53, Andrew Cooper wrote: > Under FRED, SETSSBSY is disallowed, and we want to be setting up FRED prior to > setting up shadow stacks. As we still need Supervisor Tokens in IDT mode, we > need mode-specific logic to establish SSP. > > In FRED mode, write a Restore Token, RSTORSSP it, and discard the resulting > Previous-SSP token. > > No change outside of FRED mode. > > Signed-off-by: Andrew Cooper <[email protected]>
Reviewed-by: Jan Beulich <[email protected]>
