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| author | Tim Chu <Tim.Chu@quantatw.com> | 2022-10-19 06:24:21 +0000 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-10-25 15:12:36 +0000 |
| commit | e27e1c1c6389e0a4d87c97dfef14068bfc7ddde6 (patch) | |
| tree | d1b6a69811df70b8f2ec0a66434d489de5050e27 /src/soc/intel/tigerlake/p2sb.c | |
| parent | 5e5335da685482bc790fffe22f1b9aab6e416248 (diff) | |
soc/intel/xeon_sp: Add functions to store/restore uart state in smm
When CONFIG_DEBUG_SMI is enabled SMM handler performs console hardware
initialization that may interfere with OS. Here we store the state
before console initialization and restore state before SMM exit.
Tested=On not public yet system, after exiting smm, uart console can
still work well.
Signed-off-by: Tim Chu <Tim.Chu@quantatw.com>
Change-Id: Ifa5042c24f0e3217a75971d9e6067b1d1f56a484
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Diffstat (limited to 'src/soc/intel/tigerlake/p2sb.c')
0 files changed, 0 insertions, 0 deletions