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>

src/cpu/intel/haswell/haswell_init.c

@@ -524,6 +524,12 @@ static void configure_mca(void)
 
 	msr = rdmsr(IA32_MCG_CAP);
 	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;
 	/* 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