[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH 5/5] x86/tboot: actually wipe contexts
On Tue, Dec 6, 2022 at 8:57 AM Jan Beulich <jbeulich@xxxxxxxx> wrote: > > Especially with our use of __builtin_memset() to implement memset() the > compiler is free to eliminate instances when it can prove that the > affected object is dead. Introduce a small helper function accompanying > the memset() with a construct forcing the compiler to retain the > clearing of (stack) memory. > > Fixes: c021c95498d9 ("x86: Replace our own specialised versions of memset and > memcpy with") > Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx>
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