diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2012-06-27 16:14:49 +0300 |
|---|---|---|
| committer | Sven Schnelle <svens@stackframe.org> | 2012-07-02 15:49:07 +0200 |
| commit | 9ed1456eff73d1a268eabb84176dd2a2107bf2d7 (patch) | |
| tree | 9811746255b0c2b168f15b76e1375d91280beb28 /src/include/cpu | |
| parent | ac6e3172ff7c1c11da59c488b239d08af1248503 (diff) | |
Intel CPUs: execute microcode update only once per core
Early HT-enabled CPUs do not serialize microcode updates within a core.
Solve this by running microcode updates on the thread with the smallest
lapic ID of a core only.
Also set MTRRs once per core only.
Change-Id: I6a3cc9ecec2d8e0caed29605a9b19ec35a817620
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1142
Tested-by: build bot (Jenkins)
Reviewed-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/include/cpu')
| -rw-r--r-- | src/include/cpu/intel/hyperthreading.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/cpu/intel/hyperthreading.h b/src/include/cpu/intel/hyperthreading.h index 0a1461ceb5..c84a6a7a4a 100644 --- a/src/include/cpu/intel/hyperthreading.h +++ b/src/include/cpu/intel/hyperthreading.h @@ -3,5 +3,6 @@ struct device; void intel_sibling_init(struct device *cpu); +int intel_ht_sibling(void); #endif /* CPU_INTEL_HYPERTHREADING_H */ |