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05 April 2024, 19:05:47 UTC
Revision 74c3e3fcf350b2e7e3eaf9550528ee3f74e44b37 authored by H. Peter Anvin on 19 April 2013, 23:36:03 UTC, committed by H. Peter Anvin on 19 April 2013, 23:36:03 UTC 
x86, microcode: Verify the family before dispatching microcode patching
 
For each CPU vendor that implements CPU microcode patching, there will
be a minimum family for which this is implemented.  Verify this
minimum level of support.

This can be done in the dispatch function or early in the application
functions.  Doing the latter turned out to be somewhat awkward because
of the ineviable split between the BSP and the AP paths, and rather
than pushing deep into the application functions, do this in
the dispatch function.

Reported-by: "Bryan O'Donoghue" <bryan.odonoghue.lkml@nexus-software.ie>
Suggested-by: Borislav Petkov <bp@alien8.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1366392183-4149-1-git-send-email-bryan.odonoghue.lkml@nexus-software.ie
1 parent 7eff7de
History
Tip revision: 74c3e3fcf350b2e7e3eaf9550528ee3f74e44b37 authored by H. Peter Anvin on 19 April 2013, 23:36:03 UTC
x86, microcode: Verify the family before dispatching microcode patching
Tip revision: 74c3e3f
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