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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-07-08 22:36:38 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-07-13 13:16:26 +0000 |
| commit | 55b7263ed825fa668f2a21d66cec57f01eccebe5 (patch) | |
| tree | 897898f630c50ab42c8f0698a8d6b27866aa6b44 /src/southbridge/intel/i82801dx/lpc.c | |
| parent | 3555389a8cdb4cb10deeafd2e116a387aa6ec5d4 (diff) | |
| download | coreboot-55b7263ed825fa668f2a21d66cec57f01eccebe5.tar.gz coreboot-55b7263ed825fa668f2a21d66cec57f01eccebe5.tar.bz2 coreboot-55b7263ed825fa668f2a21d66cec57f01eccebe5.zip | |
intel/e7505,i82801dx: Fix SMM_ASEG lock
In our codebase, this is only coupled with intel/e7505.
The PCI registers reference here were for intel/i945.
Also aseg_smm_lock() was previously not called.
Change-Id: I21d991c8c2f5c2dde1f148fd80963e39d9836d3c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34149
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/southbridge/intel/i82801dx/lpc.c')
| -rw-r--r-- | src/southbridge/intel/i82801dx/lpc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c index 3c74e98f598d..94d8e14eb355 100644 --- a/src/southbridge/intel/i82801dx/lpc.c +++ b/src/southbridge/intel/i82801dx/lpc.c @@ -299,6 +299,12 @@ static void lpc_init(struct device *dev) /* Initialize the High Precision Event Timers */ enable_hpet(dev); + + /* Don't allow evil boot loaders, kernels, or + * userspace applications to deceive us: + */ + if (CONFIG(HAVE_SMI_HANDLER)) + aseg_smm_lock(); } static void i82801dx_lpc_read_resources(struct device *dev) |