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| author | Aaron Durbin <adurbin@chromium.org> | 2013-06-21 18:02:26 +0300 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-06-22 20:47:21 +0200 |
| commit | 7f5897a1c5bcd6062169368b827975faa9feeebf (patch) | |
| tree | eb6660af0307e34397cb17e49b4dec4728e5e25c /src/cpu | |
| parent | 065107259774169db73c42e9a2d5777f63a78c29 (diff) | |
Do CAR variable migration only once
Non-S3 resume paths of sandy/ivybridge call cbmem_initialize()
more than once. Doing car_migrate_variables() more than twice caused
at least loss of some lines in CBMEM console.
Change-Id: Idd14aba9384984aa3a7d38937a4b3572aa5dc088
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3512
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/x86/car.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cpu/x86/car.c b/src/cpu/x86/car.c index 31fc67c57a..88f280796b 100644 --- a/src/cpu/x86/car.c +++ b/src/cpu/x86/car.c @@ -80,6 +80,10 @@ void car_migrate_variables(void) car_migration_func_t *migrate_func; size_t car_data_size = &_car_data_end[0] - &_car_data_start[0]; + /* Check if already migrated. */ + if (car_migrated) + return; + migrated_base = cbmem_add(CBMEM_ID_CAR_GLOBALS, car_data_size); if (migrated_base == NULL) { |