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cpu/intel/haswell: Enable MCA logging 

Intel document 493770 (Haswell BIOS Writer's Guide) revision 1.8.0
recommends writing all ones to the IA32_MCi_CTL registers in order
to enable all MCA error reporting.

Change-Id: Ib5d2c759483026b5b4804c5a4b2b969d2269af22
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55463
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Angel Pons 2021-06-13 22:33:06 +02:00 committed by Patrick Georgi
parent 1109246cd1
commit 1515a48cff
1 changed files with 6 additions and 0 deletions
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6
src/cpu/intel/haswell/haswell_init.c
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@ -524,6 +524,12 @@ static void configure_mca(void)
msr = rdmsr(IA32_MCG_CAP); msr = rdmsr(IA32_MCG_CAP);
num_banks = msr.lo & 0xff; num_banks = msr.lo & 0xff;
/* Enable all error reporting */
msr.lo = msr.hi = ~0;
for (i = 0; i < num_banks; i++)
wrmsr(IA32_MC0_CTL + (i * 4), msr);
msr.lo = msr.hi = 0; msr.lo = msr.hi = 0;
/* TODO(adurbin): This should only be done on a cold boot. Also, some /* TODO(adurbin): This should only be done on a cold boot. Also, some
* of these banks are core vs package scope. For now every CPU clears * of these banks are core vs package scope. For now every CPU clears