df7aecd926
Some CPUs, (Intel core2 and pineview) have slightly different SMRR MTRR mechanism. The MSR_SMRR_PHYSBASE/MASK MSRs are at a different location, have slightly different semantics and need SMRR enable in a locked down IA32_FEATURE_CONTROL MSR. This change takes away the possibility to (not) lock IA32_FEATURE_CONTROL on these CPUs, as this is needed for SMRR MSR to work. Since sockets cover multiple CPUs of which only some support SMRR, the Kconfig option CONFIG_SET_IA32_FC_LOCK_BIT is kept in place, even though it gets meaningless on those CPUs. Locking that bit was the default anyway. With this patch Intel Netburst CPUs also configure IA32_FEATURE_CONTROL. According to Intel 64 and IA-32 Architectures Software Developer's Manual those CPUs support that MSR so issues are not to be expected. Change-Id: Ia85602e75385e24ebded75e6e6dd38ccc969a76b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/27586 Tested-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Martin Roth <martinroth@google.com> |
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| .. | ||
| Kconfig | ||
| Makefile.inc | ||
| model_6ex_init.c | ||