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SubjectRe: Do the x86 kernel entry points need an xabort on TSX cpus?
On 02/10/2012 09:24 AM, Andy Lutomirski wrote:
>
> Is that architecturally guaranteed? (My manual suggests that it's
> specifically *not* guaranteed, which is surprising.)
>

I asked internally for a statement, and got the following:

"Intel does not expect operating systems to require XABORT at the entry
points. Intel takes system security extremely seriously and that any
functionality added is scrutinized for security implications."

-hpa



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